tag:blogger.com,1999:blog-388398972024-03-05T15:58:59.227-08:00The Way of OrigamiA simple game: making figures folding a piece of paper. Can teach us fundamental aspects about the life and, at the same time, constitute a place where to understand the meaning of art and the need of representing.
<br><br><b>This site has no relation with famous design office http://www.origamido.com</b>peterselfhttp://www.blogger.com/profile/15778752823201555000noreply@blogger.comBlogger32125tag:blogger.com,1999:blog-38839897.post-92100197127638765602011-05-15T14:10:00.000-07:002011-05-15T14:36:42.523-07:00VI International Convention Origami Chile<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgT7d556TUog5rh65X8xFsukjU3_IGFxzv4YGdINAAHpRCyX9bEg5ZPMLvFBVOdCuhKf-UQb9lgM2nLPvfdmcwKGAEJFQrbxv-Hkx9Q7y0ijOb0hcQnN74izdq3SXXbDQaLxNH5/s1600/afiche1.jpg" onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}"><img style="display:block; margin:0px auto 10px; text-align:center;cursor:pointer; cursor:hand;width: 400px; height: 307px;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgT7d556TUog5rh65X8xFsukjU3_IGFxzv4YGdINAAHpRCyX9bEg5ZPMLvFBVOdCuhKf-UQb9lgM2nLPvfdmcwKGAEJFQrbxv-Hkx9Q7y0ijOb0hcQnN74izdq3SXXbDQaLxNH5/s400/afiche1.jpg" border="0" alt="" id="BLOGGER_PHOTO_ID_5607052676198952786" /></a><div style="text-align: left;"><br /></div><div style="text-align: justify;">Origami Chile is happy to announce its VIth International CConvention and 2nd Latin American Congress in Santiago de Chile on August 25th, 26th and 27th. Special guest will be the Masters Eric Gjerde (USA), Isa Klein (Brasil) and Aldo Marcell (Nicaragua). We want to invite all folders and interested to participate on this event and therefore celebrate a fantastic meeting of friendship and paper. Soon we will post more information about inscription, commodities and the program in our web site (http://www.origamichile.cl/).</div><br /><div><div style="text-align: center;"><b>Calling for Diagrams for the Convention Book</b></div><div><br /></div><div style="text-align: justify;">We invite all creators and diagramers to participate in our commemorative Convention book, where we hope to gather wonderful figures, for different levels of complexity. We want this book to keep being a window shelf for latin american (and also worldwide) and we hope to reach many different places in the world. From this edition on we want to privilege:</div><div style="text-align: justify;"><br /></div><div style="text-align: justify;">• Quality on the diagramming</div>• The use of international rules on representing folds and steps<br />• Original creations not published before (or at least in a window of 6 months)<br />• Diagrams in format Freehand, PDF o images like JPG, PNG o GIF.<br /><br /><div style="text-align: justify;">We ask to send them to: convención.origamichile@gmail.com, with your name, email address, postal address and group you belong (if it is the case). Authors selected will receive a copy of the book after the Congress. The reception will be UNTIL JULY 31st 2011.</div></div><div style="text-align: justify;"><br /></div><div style="text-align: justify;">kind regards to all.</div>peterselfhttp://www.blogger.com/profile/15778752823201555000noreply@blogger.com0tag:blogger.com,1999:blog-38839897.post-59675724739336946572010-07-11T12:23:00.000-07:002010-07-11T12:29:30.892-07:00V Origami Chile Convention Book<bk><br /><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiKMF9NIw-0QXzkRRNaB15dTd3LN652WE5HJEveRDuA3Yl0osAOJLt6Fyyi6FnO6vRTSJoaomd4pdyHDHsSJWYRRZGTgVXT_HQ1v84RXWZEBl6FS8qvgBoVUEcvPUkhGSI6OgX7Kg/s1600/coversmall2.jpg"><img style="display: block; margin: 0px auto 10px; text-align: center; cursor: pointer; width: 320px; height: 202px;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiKMF9NIw-0QXzkRRNaB15dTd3LN652WE5HJEveRDuA3Yl0osAOJLt6Fyyi6FnO6vRTSJoaomd4pdyHDHsSJWYRRZGTgVXT_HQ1v84RXWZEBl6FS8qvgBoVUEcvPUkhGSI6OgX7Kg/s320/coversmall2.jpg" alt="" id="BLOGGER_PHOTO_ID_5492731993842465330" border="0" /></a><br /><br /></bk><div style="text-align: justify;"><bk> Next Chilean Origami Convention is coming next July 29th and its commemorative book is almost ready. Here is a preliminary list with its models that I want to share with you. We are most proud an happy since again an amazing collection of figures, coming from many great authors in the world and specially from Latin America has arrived. It has been always our goal to create a document of high standards where to show the art of so many new creators to the world's community and to the Convention assistants. Its diagramming will be closing next weekend so I would like to invite you in case you want to be part of this beautiful collection and send us one or two of your diagrams. You can send them to convencion.origamichile@gmail.com</bk><br /><bk>Many regards.</bk><br /><bk></bk><br /><bk>V Convención Internacional Origami Chile, Santiago 2010 (Conmemorative Book)</bk><br /><bk></bk><br /><bk>1. Love Letter (Lukyanov Andrey, Rusia)</bk><br /><bk>2. Mama Crane (Jared Needle, USA)</bk><br /><bk>3. Prasentation Saules (Roberto Romero, Perú)</bk><br /><bk>4. Tiranosaurio (Cristián Castillo Estrada, Chile)</bk><br /><bk>5. Dragón Volador (Cristián Castillo Estrada, Chile)</bk><br /><bk>6. Pequeño Elefante (Paul Espinoza, Ecuador)</bk><br /><bk>7. Ray (Ma Yong, China)</bk><br /><bk>8. Manta Raya (Jesús Guillermo Cadena, Colombia)</bk><br /><bk>9. Manta Raya (Jaime Niño, Colombia)</bk><br /><bk>10. Ahh Mask (Bruno Ferraz, Brasil)</bk><br /><bk>11. Zigzag Mask (Bruno Ferraz, Brasil)</bk><br /><bk>12. Girafa (Bruno Ferraz, Brasil)</bk><br /><bk>13. Caracol (Elmer López, Bolivia)</bk><br /><bk>14. Estrella Navidad (Javier Miranda, Venezuela)</bk><br /><bk>15. Fox Terrier (Julio Eduardo C T, Bolivia)</bk><br /><bk>16. Herón (Dr. Michael Weinstein, USA)</bk><br /><bk>17. Japanese Beetle (CP, Diego Fernando Becerra, Colombia)</bk><br /><bk>18. Lesbia Victoriae (Juan Landeta, Ecuador)</bk><br /><bk>19. Liebre (Julio Eduardo CT, Bolivia)</bk><br /><bk>20. Itaibera (Nicolás Delgado, Bolivia)</bk><br /><bk>21. Guacamayo (Alejandro Dueñas, Perú)</bk><br /><bk>22. Loro Pirata (Gabriel Saavedra M, Chile)</bk><br /><bk>23. Jolly Roger (Gabriel Saavedra M, Chile)</bk><br /><bk>24. Perro Juguetón (Gabriel Castro Rodríguez, Colombia)</bk><br /><bk>25. Hipogrifo (Duk Uqullias Erazo, Ecuador)</bk><br /><bk>26. Star Bird (Sanja Srbljinović Čuček, Croacia)</bk><br /><bk>27. Tarjeta Origami (Oswaldo Gutiérrez Tobón, Colombia)</bk><br /><bk>28. Unicornio (Julio Eduardo CT, Bolivia)</bk><br /><bk>29. Minotaur (Gilad Aharoni, Israel)</bk><br /><bk>30. Casco Vikingo (Jaime Niño, Colombia)</bk><br /><bk>31. Pollo Godie (Richard Jiménez, Colombia)</bk><br /><bk>32. Dinosaurio (patricio Kunz, Chile)</bk><br /><bk>33. Barco (Beatriz González, Chile)</bk><br /><bk>34. Cruz Piramidal (Beatriz González, Chile)</bk><br /><bk>35. Moai (Andrei Ermakov, Rusia)</bk><br /><bk>36. Quirquincho (Edwin Claudio Flores, Bolivia)</bk><br /><bk>37. Caballo (Nicolás Gajardo, Chile)</bk></div>peterselfhttp://www.blogger.com/profile/15778752823201555000noreply@blogger.com0tag:blogger.com,1999:blog-38839897.post-54532284256949351082009-10-25T09:14:00.000-07:002009-10-25T09:46:07.170-07:00Happy Origami International Day!<br><br /><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhNrk01rZF5fEkRvm8eyq-Xqeh_fDCcgkFN2trYtnGntyK9xOVzLPWuYbBZTvNc5xgzTSL2sydcTYpoD-EPCjjxW7tlhLJLRhhsXHJmxY4dBY2JUHexJFAH4u-XdLDyXA_NzQrE/s1600-h/Foto-0031.jpg"><img style="margin: 0px auto 10px; display: block; text-align: center; cursor: pointer; width: 320px; height: 240px;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhNrk01rZF5fEkRvm8eyq-Xqeh_fDCcgkFN2trYtnGntyK9xOVzLPWuYbBZTvNc5xgzTSL2sydcTYpoD-EPCjjxW7tlhLJLRhhsXHJmxY4dBY2JUHexJFAH4u-XdLDyXA_NzQrE/s320/Foto-0031.jpg" alt="" id="BLOGGER_PHOTO_ID_5396368329706835922" border="0" /></a><br /><br /><div style="text-align: justify;">I didn't know there was an International Day of Origami. It was born as an iniciative of the north american group Origami USA, altogether with the British Origami Society. In Japan there is already a conmemmorative day, November 11th, the day when the traditional paper crane became an official symbol of peace. It was thought then to use it, but Alas! in english-speaker societies that date is War Veteran's Day (Origami doesn't lack of irony, I guess).<br /><br />It was chosen then October 24th, birth date of Lillian Oppenheimer (1898-1992), founder in 1958 of the first Origami group in America: FOCA ("Friends of Origami Center of America", which was going to become Origami USA), besides her, the group included also Isao Honda from Japan and Robert Harpin from England; she was later founder member of the British Origamy Society in 1967.<br /><br />In South America the oldest references we found them in Dr. Vicente Solorzano Sagredo (founder of the Argentinean Origami Museum in 1954, closed on 1961), Ligia Montoya and Adolfo Cerceda (Argentina).<br /></div><br /><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiiBNr5IVHjl15zbpp5Nf-A-FDyVjAVMamjBeXSXVTvGsUPq6u_5y0O5eAnKuxDN_3yIfQKtuYQK58pxQGR5ngUaK3VYQM9qeio7MB1pqQWgPFNzu_pCn7BwwNOIsqcLLn0Qj9v/s1600-h/Dibujo2.jpg"><img style="margin: 0pt 10px 10px 0pt; float: left; cursor: pointer; width: 143px; height: 201px;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiiBNr5IVHjl15zbpp5Nf-A-FDyVjAVMamjBeXSXVTvGsUPq6u_5y0O5eAnKuxDN_3yIfQKtuYQK58pxQGR5ngUaK3VYQM9qeio7MB1pqQWgPFNzu_pCn7BwwNOIsqcLLn0Qj9v/s320/Dibujo2.jpg" alt="" id="BLOGGER_PHOTO_ID_5396368511842219538" border="0" /></a><br /><div style="text-align: justify;">Due to her enthusiasm and vitality promoting this art, Lillian Oppenheimer is considered the tru "mother" of western origami. However to me this date still doesn't look too wide world consent taking in consideration Eastern Europe, Africa or Central and South America. It is reasonable for me to take November 11th (with the bow of the Veterans), since it is also a date related to peace and Art, to the bottom line, is an act of communication and understanding between people.<br /><br />The propposal then is to celebrate from Oct 24th to Nov 11th the International Days of Origami. So, joining it I thought to tape and share a new set of videos, to fold the beautifull horse from japanese Noboru Mijayima, its diagram is available on <a href="http://www.h5.dion.ne.jp/%7Eorigami/e/diagram.html">his website</a>. I hope you enjoy folding it :D<br /></div><br /><br /><object width="410" height="252"><param name="movie" value="http://www.youtube.com/v/4HALYergokw&hl=es&fs=1&"><param name="allowFullScreen" value="true"><param name="allowscriptaccess" value="always"><embed src="http://www.youtube.com/v/4HALYergokw&hl=es&fs=1&" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="410" height="252"></embed></object><br /><br /><object width="410" height="252"><param name="movie" value="http://www.youtube.com/v/Uv0f1_6b904&hl=es&fs=1&"><param name="allowFullScreen" value="true"><param name="allowscriptaccess" value="always"><embed src="http://www.youtube.com/v/Uv0f1_6b904&hl=es&fs=1&" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="410" height="252"></embed></object><br /><br /><object width="410" height="252"><param name="movie" value="http://www.youtube.com/v/amklS_b4B5Q&hl=es&fs=1&"><param name="allowFullScreen" value="true"><param name="allowscriptaccess" value="always"><embed src="http://www.youtube.com/v/amklS_b4B5Q&hl=es&fs=1&" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="410" height="252"></embed></object><br /><br /><object width="410" height="252"><param name="movie" value="http://www.youtube.com/v/roxGWs25MPk&hl=es&fs=1&"><param name="allowFullScreen" value="true"><param name="allowscriptaccess" value="always"><embed src="http://www.youtube.com/v/roxGWs25MPk&hl=es&fs=1&" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="410" height="252"></embed></object><br /><br /><object width="410" height="252"><param name="movie" value="http://www.youtube.com/v/8mlfCARiSo4&hl=es&fs=1&"><param name="allowFullScreen" value="true"><param name="allowscriptaccess" value="always"><embed src="http://www.youtube.com/v/8mlfCARiSo4&hl=es&fs=1&" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="410" height="252"></embed></object><br /><br /><object width="410" height="252"><param name="movie" value="http://www.youtube.com/v/hnxOMiKqPHw&hl=es&fs=1&"><param name="allowFullScreen" value="true"><param name="allowscriptaccess" value="always"><embed src="http://www.youtube.com/v/hnxOMiKqPHw&hl=es&fs=1&" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="410" height="252"></embed></object><br /><br />I send a massive hug to all origamists in the world and specially to the brave ones who try it for the first time!<br /><br />reference:<br />http://www.britishorigami.info/academic/temko_memoirs.phppeterselfhttp://www.blogger.com/profile/15778752823201555000noreply@blogger.com0tag:blogger.com,1999:blog-38839897.post-41868854982353643892009-08-05T15:33:00.000-07:002009-08-05T15:47:40.035-07:00Valparaiso 2009 World Peace Cry<bk><br /><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhkqunYgJd9jJ4qrhAXV1YBKzGR8Yv8Tg-YE_iHy6uXnZvztxMsI_F0LgHpxBt84wt3jbrvUF0kqI11Ti8gGw5Q2LkXIvZx2YJZ4aaBkypO39o8wSaBmSYmeugv25x14-lvVa19/s1600-h/DSC_0016.JPG"><img style="margin: 0px auto 10px; display: block; text-align: center; cursor: pointer; width: 320px; height: 213px;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhkqunYgJd9jJ4qrhAXV1YBKzGR8Yv8Tg-YE_iHy6uXnZvztxMsI_F0LgHpxBt84wt3jbrvUF0kqI11Ti8gGw5Q2LkXIvZx2YJZ4aaBkypO39o8wSaBmSYmeugv25x14-lvVa19/s320/DSC_0016.JPG" alt="" id="BLOGGER_PHOTO_ID_5366610697088648482" border="0" /></a><br /><br /><div style="text-align: justify;"><span xmlns=""><p> A year passed. An intense year. Suddenly is August, and our Annual Convention has become into a reality in the beautiful and historic port of Valparaiso. Tomorrow begins a new party with friends, a great exhibition, workshops, laughs and challenges. And it begins in the best way, with a calling for peace and the end of wars in the world.</p><p>In August 6 we remember the falling of the first atomic bomb used in war in Hiroshima on 1945, killing 120 thousand people and contaminating by radiation more than 300 thousand more... On this date all around the globe, people meets to hang simbolically paper cranes to demand their authorities the end of wars and World Peace, as the way for the future of mankind, following the example of an 11 years old girl called Sadako Sasaki, who wanted to fold 1000 cranes of paper to ask for the victims of the war and saddly died without achieving it, due to the radiation on 1955.<br /></p><p>This Thursday we will hang thousands of cranes on an act inscribed on the World March for Peace and No Violence action. The act will be at 12:00 hrs on the square of the British Arc on Brasil Avenue, Valparaíso-Chile. If you want to join it and fold your crane, here I left the instructions, it's very simple and beautiful and we hope each one of them is a step for a the only future possible.<br /></p></span><br /><br /><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjhGt1mTWCPHEKnzAqCA_zSN-v29vatPynHF2uF0ibE9XLCkmDmuoVFwomYLRlhmob_bBpPIyxoWihMLrIeBcktCMhmmGt8ZlBAZA6uaCT6tGrdmwG1luYlQXonaEmZGcyzwTBX/s1600-h/grulla.jpg"><img style="margin: 0px auto 10px; display: block; text-align: center; cursor: pointer; width: 294px; height: 400px;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjhGt1mTWCPHEKnzAqCA_zSN-v29vatPynHF2uF0ibE9XLCkmDmuoVFwomYLRlhmob_bBpPIyxoWihMLrIeBcktCMhmmGt8ZlBAZA6uaCT6tGrdmwG1luYlQXonaEmZGcyzwTBX/s400/grulla.jpg" alt="" id="BLOGGER_PHOTO_ID_5366606237795477746" border="0" /></a><br /><br /><span xmlns=""><p> </p>Here is also a map to reach the act<br /></span></div><br /><br /><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhT3KSETO1jaO-K0kTgE1w68tJXwtMWgo-69fod1AG-RQZGZTBJ-LcGEjvGNJBK520rDoHK1C637g0DhevBM-eQ6USuFaWPa0JyHZ8emnIxyUtC5tE61ljNzgWc-OANzrcSqOD0/s1600-h/milgrullasvalpo2009.jpg"><img style="margin: 0px auto 10px; display: block; text-align: center; cursor: pointer; width: 400px; height: 400px;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhT3KSETO1jaO-K0kTgE1w68tJXwtMWgo-69fod1AG-RQZGZTBJ-LcGEjvGNJBK520rDoHK1C637g0DhevBM-eQ6USuFaWPa0JyHZ8emnIxyUtC5tE61ljNzgWc-OANzrcSqOD0/s400/milgrullasvalpo2009.jpg" alt="" id="BLOGGER_PHOTO_ID_5366609125562004706" border="0" /></a></bk>peterselfhttp://www.blogger.com/profile/15778752823201555000noreply@blogger.com0tag:blogger.com,1999:blog-38839897.post-75555589139919259172009-05-08T17:01:00.000-07:002009-05-08T17:48:00.074-07:00Between the Folds of Life<bk><br /><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi8ht3-yQu6xvOiPpZjvhgsxivpHkMG96RcAlgDsvMPvd9NytEbj1uvjfmdnEsTpCoq7gkVEjPVefT_trslmz5UgDcNwQfxjoxs56aTb0OEz2CYO-VZikp6OdIEtgSFV-ZF3bCS/s1600-h/olga0002.jpg"><img style="margin: 0px auto 10px; display: block; text-align: center; cursor: pointer; width: 320px; height: 240px;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi8ht3-yQu6xvOiPpZjvhgsxivpHkMG96RcAlgDsvMPvd9NytEbj1uvjfmdnEsTpCoq7gkVEjPVefT_trslmz5UgDcNwQfxjoxs56aTb0OEz2CYO-VZikp6OdIEtgSFV-ZF3bCS/s320/olga0002.jpg" alt="" id="BLOGGER_PHOTO_ID_5333392914299175650" border="0" /></a><br /></bk><div style="text-align: justify;"><bk><p style="text-align: justify; font-family: verdana;font-family:verdana;" class="MsoNormal"><span style="" lang="EN-US">Last week we had an unexpected and motivating encounter. Passing by Chile was a member of the Spanish Origami Association, Olga de Pedro, a fantastic, enthusiastic and funny person. she sent us a last-minute mail and some of us that could get off job went to met her at her Hotel the last day she was on Santiago. In her and her husband's eyes and talk you could see they were coming from an astonishing travel, through the glaciers and ices of the Aysen region, the Patagonian steppes of the end's world and the singular deserts of Atacama. And we seat to talk about origami... sharing experiences, introduce ourselves, tell her about our group, the activities we have done, possible travels and realities.<o:p></o:p></span></p> <p style="font-family: verdana;" class="MsoNormal"><span style="" lang="EN-US"><o:p> </o:p></span></p> <p style="font-family: verdana;" class="MsoNormal"><span style="" lang="EN-US">Sudden we were, as Olga said, putting faces to the names, to what is written on forums or web sites; I felt stronger than ever, the need of an Spanish-talking magazine, that circulates and be read in Spain and America, to have a closer community, to see us and recognize the friends in news from Colombia, Nicaragua, Peru, Zaragoza, Burgos or Madrid. Also last week we had on Origami Chile's anniversary a video conference with friends in Colombia and it was exciting, was like to seat all of us in the same living room and be part of the same meeting, as one big group of friends...<o:p></o:p></span></p> <p style="font-family: verdana;" class="MsoNormal"><span style="" lang="EN-US"><o:p> </o:p></span></p> <p style="font-family: verdana;" class="MsoNormal"><span style="" lang="EN-US">Travels and visits are essentials but, between them, to fill the emptiness of missing the friends, to know what are they doing, what are they folding , what new models have they created, it is necessary to have a publication, where to announce of conventions and projects, where to propone theory and introduce the new young talents. Internet is a good platform, but nothing compares to a magazine, made of paper, to carry it on the bag, to read it with love and to pass the pages, releasing the secrets of every new turn of them.<o:p></o:p></span></p> <p style="font-family: verdana;" class="MsoNormal"><span style="" lang="EN-US"><o:p> </o:p></span></p> <span style="font-family: verdana;" lang="EN-US">The idea we have discussed it many times, important creators has showed us their enthusiasm of participate on it. That were what I was thinking drinking my beer, when I founded a little piece of paper hidden on the pages f the book that Olga was carrying, I took it instinctively and I began to fold</span><span style="font-family: verdana;">.</span></bk><br /><bk></bk></div>peterselfhttp://www.blogger.com/profile/15778752823201555000noreply@blogger.com0tag:blogger.com,1999:blog-38839897.post-80394693174492340982009-01-14T23:01:00.000-08:002009-01-15T00:28:40.073-08:00Pasquale D'Auria Swan<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiRk1FJaR9U52X13ymdfhVrHkXpphJMdezF1UMpWPMqw1EaxnXARn7o0hG9-hcGPhtAyi7CfeWNLvbBpUSNqW_XrX3pvyjxFOs6ICyNZX2BxSLfL15_B5_IPu2rvx3fGg2_zxMoVg/s1600-h/cisne0001fb9.jpg"><img id="BLOGGER_PHOTO_ID_5291434540939756306" style="DISPLAY: block; MARGIN: 0px auto 10px; WIDTH: 320px; CURSOR: hand; HEIGHT: 239px; TEXT-ALIGN: center" alt="" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiRk1FJaR9U52X13ymdfhVrHkXpphJMdezF1UMpWPMqw1EaxnXARn7o0hG9-hcGPhtAyi7CfeWNLvbBpUSNqW_XrX3pvyjxFOs6ICyNZX2BxSLfL15_B5_IPu2rvx3fGg2_zxMoVg/s320/cisne0001fb9.jpg" border="0" /></a><br /><p></p><br /><p align="justify">World is a complex place, so complex that it gives its space to simplicity. In the course of a life it gives us thousands of simple but powerful moments: a laugh, a smart answer, the instantaneous pleasure of a music that makes everything fits its place on sense and purpose. I dare to think, at least for myself, that in them lies much more happiness than in the elaborated plans we make for living. Among the numerous free figures that can be found on the internet, most are simple and their diagrams rarely goes over the 30-40 steps, and therefore they are a fascinating source to find these amazing models full of beauty, aesthetic sense and elegance. Some months ago I showed one of these figures, the squirrel from american Perry Bailey, and now I do the same with this incredible swan, which diagram can be found on the <a href="http://www.pajarita.org/modules.php?name=Secciones_especiales&op=vercategorias&categoria=2">Spanish Origami Association</a> website.<br /></p><br /><p align="justify">One of its best characteristics is its three dimensional volume, something that is never considered when evaluating origami but that for me is a vital consideration since we live in a world beyond photography or diagram. Models that look ok only from certain angles, or that have ugly multilayered sides. This Swan, in the other hand, apart from the empty shell that lies below it, shows a perfect and gorgeous swan about to flight. The author is the italian <a href="http://www.origamidauria.it/">Pasquale D’Auria</a> and it also challenges us to fold its curved surfaces and elegance. It has became one of my favorites and I invite you all, fiercely, to fold it, to love it, and to give it as a miracle.</p><br /><br /><embed src="http://www.youtube.com/v/30UXHtuy2xM&hl=" width="425" height="344" type="application/x-shockwave-flash" fs="1" allowscriptaccess="always" allowfullscreen="true"></embed><br /><br /><embed src="http://www.youtube.com/v/XdjT8c7t9bQ&hl=" width="480" height="295" type="application/x-shockwave-flash" fs="1" allowscriptaccess="always" allowfullscreen="true"></embed><br /><br /><embed src="http://www.youtube.com/v/7IkRTQqDveY&hl=" width="425" height="344" type="application/x-shockwave-flash" fs="1" allowscriptaccess="always" allowfullscreen="true"></embed><br /><br /><embed src="http://www.youtube.com/v/r_2NbHlUpxM&hl=" width="425" height="344" type="application/x-shockwave-flash" fs="1" allowscriptaccess="always" allowfullscreen="true"></embed>peterselfhttp://www.blogger.com/profile/15778752823201555000noreply@blogger.com0tag:blogger.com,1999:blog-38839897.post-11588044461878196142008-11-12T05:19:00.000-08:002008-11-12T06:55:57.015-08:00God Save the Square<div style="text-align: justify;">My good friend <a href="http://padyta.blogspot.com/">Padyta</a> asked me if it was possible to obtain a rectangular angle from an arbitrary piece of paper. If we remember that a square is possible to be constructed from that angle, her question have a great importance.<br /><br />To build a perpendicular line to a given one in two-dimension geometry demands the use of ruler and compass and it is not an easy thing. One way is tracing a circumference of an arbitrary radius, centered in an starting point A, then a second circumference centered on the intersection of the line and the first circumference (point B), the intersection of both circumferences gives us a point C, equidistant to both corners A and B, a new circumference of the same radius centered on C and its intersection with the first circumference gives us a point D and finally the intersection of a circumference centered on D with the one centered on C gives us the point E, perpendicular to the line AB.<br /><br /><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjlsxESfFwahoO8vSKGQ8tLoVreevA6V3gho4xGQh8oQMEvd5TYVLKz7ovZd8rYMQtpr5Sz4aNiI8qIVcGw8VTw19aWt6CEboEzmPM9AVlvwNyjPadLZ9LJ3gWs3-soKwVVbKrf/s1600-h/perpend.jpg"><img style="margin: 0px auto 10px; display: block; text-align: center; cursor: pointer; width: 238px; height: 207px;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjlsxESfFwahoO8vSKGQ8tLoVreevA6V3gho4xGQh8oQMEvd5TYVLKz7ovZd8rYMQtpr5Sz4aNiI8qIVcGw8VTw19aWt6CEboEzmPM9AVlvwNyjPadLZ9LJ3gWs3-soKwVVbKrf/s320/perpend.jpg" alt="" id="BLOGGER_PHOTO_ID_5267756696447515842" border="0" /></a><br /><br />However, the "origeometry" allows us to use the paper itself and gives us a third dimension and increas our capabilities. So, if we have a given straight line, folding the paper aligning the line on itself we can get a perpendicular line.<br /><br /><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjZ_Q6ntBLrgCS67BCLZ8RYL-lYQfx5LU1Eeh-yoyn10VU5GVU39FbCoLnRr_Jl_dbA7aJW0JzUHcjC0eKZAI15bD99eAHodPIF5ugS-JkmRHBiOCfW-SZRJ3cU8fyAJWxKDr-c/s1600-h/cuadrado2a.jpg"><img style="cursor: pointer; width: 320px; height: 284px;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjZ_Q6ntBLrgCS67BCLZ8RYL-lYQfx5LU1Eeh-yoyn10VU5GVU39FbCoLnRr_Jl_dbA7aJW0JzUHcjC0eKZAI15bD99eAHodPIF5ugS-JkmRHBiOCfW-SZRJ3cU8fyAJWxKDr-c/s320/cuadrado2a.jpg" alt="" id="BLOGGER_PHOTO_ID_5267743642521833538" border="0" /></a><br /><br /><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhUOFEPjxhiHPKO6_a97eYv5s_F8tr42uTaEJpsdxxQuUgBwtZKEGYuNRSuUklXkVklFlI_SYpTuBaGD1uoEyPGEnEkGTt7PmyaEOvrkiQoenfgGJfy4xPdbZTVWsUewpdxCWNl/s1600-h/cuadrado2b.jpg"><img style="cursor: pointer; width: 226px; height: 320px;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhUOFEPjxhiHPKO6_a97eYv5s_F8tr42uTaEJpsdxxQuUgBwtZKEGYuNRSuUklXkVklFlI_SYpTuBaGD1uoEyPGEnEkGTt7PmyaEOvrkiQoenfgGJfy4xPdbZTVWsUewpdxCWNl/s320/cuadrado2b.jpg" alt="" id="BLOGGER_PHOTO_ID_5267743895161080642" border="0" /></a><br /><br />Now that we have our rectangular angle, is it possible to construct a perfect square from it? The answer, luckily, it's a yes. Here it comes a way.<br /><br />First you need to fold a 45° line between both lines, that will allow us to find the main diagonal passing through the next corner of the square. To do it, we fold aligning both lines on their intersecton point.<br /><br /><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgBRbJbr3Tw4tkRU7lZqPFU84P8PhiiNPh2iJC2K7J8d5xhKPxUnFMMtqCwmMcpCkQdSbbIM8mXfckkn7og5h56Vfr9SdigKyv0NvAwTph8OyesZxy_wRpSJR5j5slxm8FqPqt9/s1600-h/cuadrado2c.jpg"><img style="cursor: pointer; width: 200px; height: 177px;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgBRbJbr3Tw4tkRU7lZqPFU84P8PhiiNPh2iJC2K7J8d5xhKPxUnFMMtqCwmMcpCkQdSbbIM8mXfckkn7og5h56Vfr9SdigKyv0NvAwTph8OyesZxy_wRpSJR5j5slxm8FqPqt9/s200/cuadrado2c.jpg" alt="" id="BLOGGER_PHOTO_ID_5267744867127599410" border="0" /></a> <a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg0_AB3QAw6vSyxjh3saoQFpi9Zgya0PCUxXq52MnRd8e4hSC8PrkK1bZVlM4uuO79mdsC2RIqThswymKmE_TQJ2Mb3QtlnBRlTc8kues4mFrEq1j7Rk-2h6RPxOPB32jaP_BPZ/s1600-h/cuadrado2d.jpg"><img style="cursor: pointer; width: 200px; height: 174px;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg0_AB3QAw6vSyxjh3saoQFpi9Zgya0PCUxXq52MnRd8e4hSC8PrkK1bZVlM4uuO79mdsC2RIqThswymKmE_TQJ2Mb3QtlnBRlTc8kues4mFrEq1j7Rk-2h6RPxOPB32jaP_BPZ/s200/cuadrado2d.jpg" alt="" id="BLOGGER_PHOTO_ID_5267745158240654530" border="0" /></a><br /><br />Then we align the small diagonal on itself folding a diagonal that passes over the corner of the square. A good choice of that corner will allow us to optimize the use of the paper to get the biggest size possible.<br /><br /><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgB-pBTXoFddlFNUY4Ky-nCDGB9yaZcTM0-Km_vNFmb5eVVR8w5a3VyBU-8lATG1eD1zTvURDNRwf1a7qEGsMcpLanMWPy_pmn9yT8Hz44PsYgsjEqNSEuZfTt2oNkvr_gEjvLL/s1600-h/cuadrado2e.jpg"><img style="cursor: pointer; width: 320px; height: 284px;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgB-pBTXoFddlFNUY4Ky-nCDGB9yaZcTM0-Km_vNFmb5eVVR8w5a3VyBU-8lATG1eD1zTvURDNRwf1a7qEGsMcpLanMWPy_pmn9yT8Hz44PsYgsjEqNSEuZfTt2oNkvr_gEjvLL/s320/cuadrado2e.jpg" alt="" id="BLOGGER_PHOTO_ID_5267746558103872594" border="0" /></a><br /><br /><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh2wZPXncU3okPh2nRfOQYOClrVFMsHaD72aa8uhyNrdIVfPSMmqTeTIfh8skUXCopJkU-23gRLe86GKpceMOnvo1Wzs00nzHI0tWVTnjqI63gcEunZOth8SVVUU0QwqektSsjS/s1600-h/cuadrado2f.jpg"><img style="cursor: pointer; width: 200px; height: 195px;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh2wZPXncU3okPh2nRfOQYOClrVFMsHaD72aa8uhyNrdIVfPSMmqTeTIfh8skUXCopJkU-23gRLe86GKpceMOnvo1Wzs00nzHI0tWVTnjqI63gcEunZOth8SVVUU0QwqektSsjS/s200/cuadrado2f.jpg" alt="" id="BLOGGER_PHOTO_ID_5267746679664315666" border="0" /></a> <a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjMYhI6iAT0uh-NhixUf1636hEFTWcJxnJTP6WIJuN9klW87V_uTjoNMRmHGtw241MCMDODDPBY_K7brHDAJpBGh3hS3csHeaH1b9wHlXT8n9XQJGtqbk9WFGJ0H93PhDh8jWye/s1600-h/cuadrado2h.jpg"><img style="cursor: pointer; width: 200px; height: 198px;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjMYhI6iAT0uh-NhixUf1636hEFTWcJxnJTP6WIJuN9klW87V_uTjoNMRmHGtw241MCMDODDPBY_K7brHDAJpBGh3hS3csHeaH1b9wHlXT8n9XQJGtqbk9WFGJ0H93PhDh8jWye/s200/cuadrado2h.jpg" alt="" id="BLOGGER_PHOTO_ID_5267746997699087714" border="0" /></a><br /><br />We can cut the main angle and the sides of the square. As we saw on the previous post we can obtain the opposite angle and complete the square by folding the main diagonal aligning it on itself, passing through the original corner.<br /><br /><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgqVJJeZ_wM2JFurZLSxcgtmkKu9-wwdsFDtoRhHdbnMgmD2Tn0bLo8vFJaRJ38X8qML298RmHSXJi3ueeI8R0NXNpaZ0JcWENfwc9fGWAcYy3VILtEmhXM2nXRqILomL8mvtZP/s1600-h/cuadrado2i.jpg"><img style="cursor: pointer; width: 200px; height: 194px;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgqVJJeZ_wM2JFurZLSxcgtmkKu9-wwdsFDtoRhHdbnMgmD2Tn0bLo8vFJaRJ38X8qML298RmHSXJi3ueeI8R0NXNpaZ0JcWENfwc9fGWAcYy3VILtEmhXM2nXRqILomL8mvtZP/s200/cuadrado2i.jpg" alt="" id="BLOGGER_PHOTO_ID_5267748147804517314" border="0" /></a><br /><br /><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjRNF62iuQSPeovRP14bE03f8Wtj5m5H9xXJ5260eBqLG7aISzDpJ3SZ-3GO-HCapYTQifYm72CbZq6D9HF9m2gfNghiwveT1NX45_zowL9rYFGxqaxs4Fw8dpyKEzk5zbR-ggn/s1600-h/cuadrado2j.jpg"><img style="cursor: pointer; width: 317px; height: 320px;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjRNF62iuQSPeovRP14bE03f8Wtj5m5H9xXJ5260eBqLG7aISzDpJ3SZ-3GO-HCapYTQifYm72CbZq6D9HF9m2gfNghiwveT1NX45_zowL9rYFGxqaxs4Fw8dpyKEzk5zbR-ggn/s320/cuadrado2j.jpg" alt="" id="BLOGGER_PHOTO_ID_5267748356158284434" border="0" /></a><br /><br />It's pendant to btain a method to optimize the size of the obtained square, maximizing its area on the given paper. Many regards.<br /></div>peterselfhttp://www.blogger.com/profile/15778752823201555000noreply@blogger.com2tag:blogger.com,1999:blog-38839897.post-2169295234736346482008-10-27T01:06:00.000-07:002008-10-27T02:06:03.650-07:00Our friend the Square<bk><br /><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi-F0T8rPKjCyRZrxcm6jj2V1z5bbLcRkLkkBO9U_y2GbA4zBK_WB5BIK_m0D9iYXSc_h9mMgEp5CMQvUNMrv1RwxbwcATZttBxlUjN5V2jlFKhad9ahsO1r8ecZ9z7DAP2yQxV/s1600-h/cuadrado-malo.jpg"><img style="margin: 0px auto 10px; display: block; text-align: center; cursor: pointer; width: 200px; height: 197px;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi-F0T8rPKjCyRZrxcm6jj2V1z5bbLcRkLkkBO9U_y2GbA4zBK_WB5BIK_m0D9iYXSc_h9mMgEp5CMQvUNMrv1RwxbwcATZttBxlUjN5V2jlFKhad9ahsO1r8ecZ9z7DAP2yQxV/s200/cuadrado-malo.jpg" alt="" id="BLOGGER_PHOTO_ID_5261718449735712754" border="0" /></a><br /><br /><div style="text-align: justify;">Since traditional Origami works over a perfectly squared piece of paper, the issue of obtaining it has become one of the greatest importance. How many of us has coursed to the heavens when we realize that our "special for origami" sheet is nor even a rectangle but a totally irregullar quadrilateral figure?<br /><br />Through the years I've used diferent methods to "square" this sheets, with varied results; for example if the sheet is a regullar rectangle you can fold the bisector of one of the corners, this is one of the main diagonals, the intersection of it with the opposite side will determine the other corner of the square.<br /><br /><br /><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiYk80idU_El4i543QSrXYJqzxPd-QJUU32gBg-bqmMnwIS8jbSsveu29wif_ocra3nQwCYEMhM3Sb-DFMh3SfAc0p-LwyKrYb8fvk-c4_4MYDPUyGOuyN4bPF9ZWjeFvvoYDo2/s1600-h/cuadradorect.jpg"><img style="margin: 0px auto 10px; display: block; text-align: center; cursor: pointer; width: 200px; height: 139px;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiYk80idU_El4i543QSrXYJqzxPd-QJUU32gBg-bqmMnwIS8jbSsveu29wif_ocra3nQwCYEMhM3Sb-DFMh3SfAc0p-LwyKrYb8fvk-c4_4MYDPUyGOuyN4bPF9ZWjeFvvoYDo2/s200/cuadradorect.jpg" alt="" id="BLOGGER_PHOTO_ID_5261718314651846530" border="0" /></a><br /><br />There is also the case of a long sheet came from a roll of paper, where you know that two opposite sides are perfectly parallel, then it's only necessary to fold a median perpendicular to both edges alining them, and then cutting both layers in a distance equals to half the height of the sheet, as is showed below; of course you will need a good graduated rule for this.<br /><br /><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhxaWioFg0yVCf_xLge56rtXB2Afql7tu_lc-7VMR6FKB4CmzJAWYSMrQLrNV1VWK7Eakhp2CBzb0Fk2_gLhkwjzwG1VHbLP5q0xkwyIbeI67C77IA81XRvhNR22A5s5C7ZWIea/s1600-h/cuadradorollo.jpg"><img style="margin: 0px auto 10px; display: block; text-align: center; cursor: pointer; width: 320px; height: 58px;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhxaWioFg0yVCf_xLge56rtXB2Afql7tu_lc-7VMR6FKB4CmzJAWYSMrQLrNV1VWK7Eakhp2CBzb0Fk2_gLhkwjzwG1VHbLP5q0xkwyIbeI67C77IA81XRvhNR22A5s5C7ZWIea/s320/cuadradorollo.jpg" alt="" id="BLOGGER_PHOTO_ID_5261718210904955474" border="0" /></a><br /><br />However, these methods fail when our sheet is an irregullar quadrilateral, like the fellow in the heading of this post.<br /><br />To find a safe way to rescue the hidden square of our paper I went back to the teachings of my old Math's school professor (Carlos "the lizard" Zuñiga): "to construct a geometrical figure go back to the characteristic that defines it, the one that give it the being..." in this case, the 90° angles of its corners. The idea then is to inscribe a rectangular angle on one of their corners with a set square (or the corner of a copy machine sheet of paper)<br /><br /><br /><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhg0hCzDIWF7gSTQOaY9y8NUuGIN1Q2LsYUztTyRnKW7mpxlrnz49EprksQrw71Vhu7f1xTYl1DoxV8ELsgY5WSgqyWMxG30Hi3jG-YAzdjtg1By__pw1dcUrtOvUffwgiCyVKG/s1600-h/cuadrado-esquina.jpg"><img style="margin: 0px auto 10px; display: block; text-align: center; cursor: pointer; width: 200px; height: 183px;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhg0hCzDIWF7gSTQOaY9y8NUuGIN1Q2LsYUztTyRnKW7mpxlrnz49EprksQrw71Vhu7f1xTYl1DoxV8ELsgY5WSgqyWMxG30Hi3jG-YAzdjtg1By__pw1dcUrtOvUffwgiCyVKG/s200/cuadrado-esquina.jpg" alt="" id="BLOGGER_PHOTO_ID_5261718557432365634" border="0" /></a><br /><br />we cut this angle. Over it you can fold the main diagonal, aligning one side on the other, this diagonal will be our future simmetry axis.<br /><br /><br /><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhXIczGbEGD9BYO43qaesBnGxaNIVhyphenhyphenYCqI1sJaGckzfYqMZ03offfz7lHiriOseOZVFTuM0hWP0Y86fZiprP7qiKyfhyMqcOWmNykiVsqhDa8mtQKUuF7b5ABiA5tGWCHebS27/s1600-h/cuadradodiagonal.jpg"><img style="margin: 0px auto 10px; display: block; text-align: center; cursor: pointer; width: 200px; height: 183px;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhXIczGbEGD9BYO43qaesBnGxaNIVhyphenhyphenYCqI1sJaGckzfYqMZ03offfz7lHiriOseOZVFTuM0hWP0Y86fZiprP7qiKyfhyMqcOWmNykiVsqhDa8mtQKUuF7b5ABiA5tGWCHebS27/s200/cuadradodiagonal.jpg" alt="" id="BLOGGER_PHOTO_ID_5261718652019265554" border="0" /></a><br /><br />Then, to construct the second diagonal, we reflects the rectangular angle on the opposite side by folding in the closer adyacent corner and aligning the simmetry axis over itself, obtaining in that way a perfectly inscribed square to be cutted.<br /><br /><br /><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhUH-PB9_zsFGFr7aPYl4SmnZ1RYdbZra5f3jvOTKDg2xiavoY5vknfAsPsVtQ5CG4MHJUWChWdTU0hpJb_ryiOvwv9ISJ61q51ChyphenhyphenidXdlrvUpLZGAb3NzmmI5H4KpSno20cry/s1600-h/cuadradofinal.jpg"><img style="margin: 0px auto 10px; display: block; text-align: center; cursor: pointer; width: 320px; height: 284px;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhUH-PB9_zsFGFr7aPYl4SmnZ1RYdbZra5f3jvOTKDg2xiavoY5vknfAsPsVtQ5CG4MHJUWChWdTU0hpJb_ryiOvwv9ISJ61q51ChyphenhyphenidXdlrvUpLZGAb3NzmmI5H4KpSno20cry/s320/cuadradofinal.jpg" alt="" id="BLOGGER_PHOTO_ID_5261718794886191218" border="0" /></a><br /><br />Finally to remark that if you use one of the side to inscribe the first rectangular angle you save one of the cuttings.<br /><br /><br />I hope it works for you all ;) many regards<br /><br /><br /></div></bk>peterselfhttp://www.blogger.com/profile/15778752823201555000noreply@blogger.com0tag:blogger.com,1999:blog-38839897.post-71119966104281673032008-07-30T16:04:00.000-07:002008-12-08T20:58:37.249-08:00This is our Cry, this is our Pray: Peace in the World!<a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg5dCZpyRffGBBB1GY-wpb6sMyQjk5in1URRfdnZmiYHKx-4ZMF2EOr0inMC1-b_J0XC8FUSxzT96vGsd8QtlEJlTf7ZeLjNxWiyvVLk6IR6eVmreBi2KRe4w3HbQsd8EKDyEnP/s1600-h/Sadako_Memorial.jpg"><img style="margin: 0px auto 10px; display: block; text-align: center; cursor: pointer;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg5dCZpyRffGBBB1GY-wpb6sMyQjk5in1URRfdnZmiYHKx-4ZMF2EOr0inMC1-b_J0XC8FUSxzT96vGsd8QtlEJlTf7ZeLjNxWiyvVLk6IR6eVmreBi2KRe4w3HbQsd8EKDyEnP/s320/Sadako_Memorial.jpg" alt="" id="BLOGGER_PHOTO_ID_5228888455880863618" border="0" /></a><br /><bk><br /><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhQNVe08VzVKaewy9HFPPi4wTa6yJOiQt0AmDsfDWcN9-Dz_IMlN2cXqM6AHQr8WVhXwQxXyPcca10FdywFQo_msoO8Zlnss7CPmn5V_tiscbAQJv7nCilAZLE81zgt-07VQ7Ai/s1600-h/746px-Origami-crane.jpg"><img style="margin: 0pt 10px 10px 0pt; float: left; cursor: pointer;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhQNVe08VzVKaewy9HFPPi4wTa6yJOiQt0AmDsfDWcN9-Dz_IMlN2cXqM6AHQr8WVhXwQxXyPcca10FdywFQo_msoO8Zlnss7CPmn5V_tiscbAQJv7nCilAZLE81zgt-07VQ7Ai/s200/746px-Origami-crane.jpg" alt="" id="BLOGGER_PHOTO_ID_5228878284707638994" border="0" /></a><br /><div style="text-align: justify;">Once in a while I think about the amount of time and energy I spend on this activity, and even when I repeat to me that this is not merely a hobby but a form of art, I can't free my mind of considering how much of selfishness or personal satisfaction moves me to do it, how much of self discipline, hard work and dedication, instead of a more social perspective, oriented to others. Maybe to compensate that in a way we participate on workshops, teaching the basics figures spreading this craft as alternatives of fun, education and discipline.</p><br /><bk><br /><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhL6FzezuFakjdT7NNAVW9dzGBFEbrXBw4qtAvnLEXtImZEikwq7vyww8-BPKfcQXNF6AtMFUB1qi6pOtY8OTC-dU8-M5NT7GP73OWP67ssp5N58A8zlx6OfuiuaHjSKebxU39Y/s1600-h/hiroshima_sadako.jpg"><img style="margin: 0px auto 10px; display: block; text-align: center; cursor: pointer;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhL6FzezuFakjdT7NNAVW9dzGBFEbrXBw4qtAvnLEXtImZEikwq7vyww8-BPKfcQXNF6AtMFUB1qi6pOtY8OTC-dU8-M5NT7GP73OWP67ssp5N58A8zlx6OfuiuaHjSKebxU39Y/s400/hiroshima_sadako.jpg" alt="" id="BLOGGER_PHOTO_ID_5228880193234817378" border="0" /></a><br /><br /></bk>A year ago, my good friend Meri Affrachino told me about Sadako Sasaki. At the age of two she was one more of the inhabitants of the Japanese city of Hiroshima, which suffered on August 6th that year the apocalyptic destruction of the first atomic bomb dropped by USA over a civilian target. That day more than 120.000 persons died instantly, and 300.000 more received serious injuries and high dozes of radiation; 3 days after, other 140.000 died on the falling of a second bomb in the city of Nagasaki, right in the middle of the city, far away from its target (close Mitsubishi factory). Sadako lived normally and healthfully until 11, when she developed leukemia, due to her expose to radiation; this terrible decease consumed her very fast, bringing her to life in bed at the Hospital. There she learn about the legend of the 1.000 paper cranes.</p> <bk><br /><br /><br /><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="http://mathworld.wolfram.com/images/gifs/origamcr.gif"><img style="margin: 0pt 0pt 10px 10px; float: right; cursor: pointer; width: 200px;" src="http://mathworld.wolfram.com/images/gifs/origamcr.gif" alt="" border="0" /></a>Tells the legend about a deadly sick man who made 1.000 traditional origami cranes, to honor the sacred bird, famous because its longevity and purity. In appreciation for that it gave him health and a long life. Then tradition says sick persons that fold this number can ask for the wish of recovery, health and a long life. As a way to keep her hope of healing and be able for running again, she devoted herself to fold them with any piece of paper that she could get on the Hospital and soon she decided to ask for the other victims of the war and for World Peace also. Unfortunately she died on October 25th 1955, after 14 months of<br />sickness, she made 644 cranes.<br /><br />It is told that her friends at school completed the remaining 356 and left all the 1.000 with her on her grave. Since then, every August 6th, thousands of people gather to fold and hang cranes in memory of little Sadako and to claim for Peace and the end of War in the world.<br /><br />To us who practices origami, to fold a traditional crane becomes a very simple and maybe trivial thing; however, to leave this example and call unattended is simply a sin, out of any logic or behavior. In our continent, in the city of Rosario, Argentina, thanks to tireless Meri and her group, since 9 years they gather and hang cranes remembering Sadako and asking for peace, last year they reached more than 20.000 colorful cranes!<br /><br />This year, here on Santiago (Chile), this Saturday August 2nd, we will do also, the meeting will be on Plaza Mori, Bellavista, at midday, to remember the cry written on Sadako's Memorial on 1958:<br /><br /><span style="color: rgb(255, 0, 0);font-size:130%;" >“This is our Cry, this is our Pray: Peace in the World!”</span><br /><br />I hope to join my friend on Rosario this year and help her in any way I can.<br /><br /><br /><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgWMg86cuGbgIjcmiq1NJAOG35BE052VUba0xXGTiIocaCuphDBTsm00gL-07SPp7jiV7jb8_GjYiQb8aBzDnC36X2amwnSbd1QEs8ANimVnHsgAWmC4hFLPW7loGp-xETCbhSR/s1600-h/millgrullasstgo.jpg"><img style="margin: 0px auto 10px; display: block; text-align: center; cursor: pointer;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgWMg86cuGbgIjcmiq1NJAOG35BE052VUba0xXGTiIocaCuphDBTsm00gL-07SPp7jiV7jb8_GjYiQb8aBzDnC36X2amwnSbd1QEs8ANimVnHsgAWmC4hFLPW7loGp-xETCbhSR/s400/millgrullasstgo.jpg" alt="" id="BLOGGER_PHOTO_ID_5228913574808375922" border="0" /></a><br />Links:<br /><a href="http://www.facebook.com/event.php?eid=55065455133">Call: Mil Grullas por la Paz Santiago, Chile, 2 de Agosto (Facebook).</a><br /><a href="http://www.milgrullasporlapaz.com.ar/">Project: Mil Grullas Por la Paz Rosario Argentina, 6 de Agosto</a><br /></bk></div><a href="http://www.informeddemocracy.com/sadako/index.html">Project: Sadako.com</a><br /><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi9czhWb52Ulb8jysuM4OpgJq_L5TC2L2Jo6liq7vqcqeuQLsj-fZoBztjyscI6HNTB-f8CnwbY9ymBFEev39xuhrgv-qz5-Qgsf-y4gKTI_Dv5sO05UIZmmnhoyErtUPdVmEDa/s1600-h/papercranes.jpg">How to make an Origami Traditional Crane</a><br /><br /><br /></bk>peterselfhttp://www.blogger.com/profile/15778752823201555000noreply@blogger.com1tag:blogger.com,1999:blog-38839897.post-21516192384003775262008-05-25T02:11:00.000-07:002008-12-08T20:58:37.307-08:00The Haga Theorems (Part I)<bk><br /><bk><br /><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhWdcbp0bH7uhsgmZCsgbZ4aMojAlxb3vMM4U2uTb-E9jvpWO6EinErpBPmEIm_-qMCMDLpxr1Nqk9oyASXY6eOGZ9uuHPqMl6dvxxCt1M-3V9jBeAJL-A99WVA4KXlwfJoopWC/s1600-h/IMG_1245.JPG"><img style="margin: 0px auto 10px; display: block; text-align: center; cursor: pointer;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhWdcbp0bH7uhsgmZCsgbZ4aMojAlxb3vMM4U2uTb-E9jvpWO6EinErpBPmEIm_-qMCMDLpxr1Nqk9oyASXY6eOGZ9uuHPqMl6dvxxCt1M-3V9jBeAJL-A99WVA4KXlwfJoopWC/s320/IMG_1245.JPG" alt="" id="BLOGGER_PHOTO_ID_5204233492403108738" border="0" /></a><br /></bk></bk><div style="text-align: justify;">Months ago, when I get envolved with Robert Lang's Miura Ken Rose I got the courage of writing him an email, to show him my humble solution of its CP (now its diagram was published on Origami USA 2007 Convention Book and 12th JOAS Convention) and his answer filled me with happiness, since he not only authorized me to put my doc online, but also gave me several suggestions and good advices.<br /><br />One of them was a "Junior" version of the Miura Ken, described by him as the construction of a grid with horizontal divisions of 12/54, 25/54, and 39/54, each one of them divided also in half, along with vertical divisions of 1/9ths. I've been faced then with the problem of generate these strange and kind of bizarre proportions of 1/54ths. But obviously is not like we need to fold halfs until reach 1/54, if we consider that 6/54 are 1/9 and that 2 times that makes the first of the suggested divisions . Also, if we get these 6/54ths units, 6.5 times them are the 39/54 for the lowest division, and to fold one of these units in half doesn't sound so terrible.<br /><br /><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgdG06e2S8hSkK-fW2_Su_0y3oOBWbcZGtr-7pIiVFsf0cP3WRFQuRW6wPcD7he6i4TDhsxwcbju0ZeO9j9AZZv-ATKhHZnDzjlEj_CzxAkxF-NL7ra4gtIdrfgEv8sHBSzW1v5/s1600-h/miurajunior1.jpg"><img style="margin: 0px auto 10px; display: block; text-align: center; cursor: pointer;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgdG06e2S8hSkK-fW2_Su_0y3oOBWbcZGtr-7pIiVFsf0cP3WRFQuRW6wPcD7he6i4TDhsxwcbju0ZeO9j9AZZv-ATKhHZnDzjlEj_CzxAkxF-NL7ra4gtIdrfgEv8sHBSzW1v5/s320/miurajunior1.jpg" alt="" id="BLOGGER_PHOTO_ID_5219063333048770802" border="0" /></a><br /><br />Then, how to create a 1/9th fold? The search for the answer lead me to the Haga Theorems, described perfectly on the <a href="http://www.origami.gr.jp/People/CAGE_/divide/index-e.html">Japan Origami Academic Society website</a>, by somebody identified as Koshiro. The idea then is to show how they works and in what they are based.<br /><br />First Haga Theorem says more or less this: "If we take the corner of a square to a mark created from a odd division on the opposite side, it will show an indication of a known even division on the adyacent side". To visualize this we will take the simplest case on dividing a side in two and get the opposite corner to this mark on the side.<br /><br /><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgtdftCK2KBQF9RpKfepgcQFo-MxRgKds5cLLk29Q2j8ePAxiKhlX4KChoCVlnci_XwxbZBAsQaVk13fxSh5V4PITL3eNIJvmUqYvwyUsAdSRW4JtD-8Yqbxkzh0I0TeMO9gKg2/s1600-h/div0201.gif"><img style="margin: 0px auto 10px; display: block; text-align: center; cursor: pointer;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgtdftCK2KBQF9RpKfepgcQFo-MxRgKds5cLLk29Q2j8ePAxiKhlX4KChoCVlnci_XwxbZBAsQaVk13fxSh5V4PITL3eNIJvmUqYvwyUsAdSRW4JtD-8Yqbxkzh0I0TeMO9gKg2/s320/div0201.gif" alt="" id="BLOGGER_PHOTO_ID_5204225134396750674" border="0" /></a><br /><br /><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgAIWGrPHqXr_JBUY0jta0-wMd5YceZe44GKmVyzM4ggr-N5iiXH77beXpWc7BLaa2GbQZaDYx9KgVgxfynNpzkTieiCkdW5p583zTFYeY5tvSQcv4c9rduFXgu-cfhmtHmEWzQ/s1600-h/div0202.gif"><img style="margin: 0px auto 10px; display: block; text-align: center; cursor: pointer;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgAIWGrPHqXr_JBUY0jta0-wMd5YceZe44GKmVyzM4ggr-N5iiXH77beXpWc7BLaa2GbQZaDYx9KgVgxfynNpzkTieiCkdW5p583zTFYeY5tvSQcv4c9rduFXgu-cfhmtHmEWzQ/s320/div0202.gif" alt="" id="BLOGGER_PHOTO_ID_5204221792912194338" border="0" /></a><br /><br /><br />As we can see, we obtained an indication of 2/3 on the right side. Its explanation comes fom the world of Geometry (of course). Triangles SAP and PBT are related, it is said that they are "similars" or proportionals, this is: the second one is equal but proportionally greater than the first one; its demonstration is based on their inner angles, there is a classic theorem on geometry (and here I use the word "classic" to avoid me to demonstrate it :D ) which says that if a triangle has every side perpendicular to one of the sides of another triangle, then their inner angles are the same and the triangles are similar or proportionals. In this case, it is obvious that side SA is perpendicullar to PB (a segment of side AB), that side AP is perpendicullar to BT and that SP it is to PT.<br /><br />Then SA=c*PB, AP=c*BT y SP=c*PT and we know AP=PB=1/2 and that SA+SP=1, we wish to know BT.<br /><br />If the triangles are proportionals,<br /><br />AP/SA=BT/PB<br /><br />AP/SA=BT/(1-AP)<br />(1/2)/SA=BT/(1/2) and then BT=1/(4*SA)<br /><br />How much is SA then? Pithagoras says that<br /><br /><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgLtkghIka_VRRhZ4aYoEcWzViBOWnl26dw01GmLmVrzkj2WnIo-PJ-51ABgyNOLykRgnv5nPslv5y9pcfeSsNGXKCl4iq6XzkGqGZ50AreMfitWUH4kVa8EJPQkV5Fy0TMkyHw/s1600-h/formula2.jpg"><img style="margin: 0px auto 10px; display: block; text-align: center; cursor: pointer;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgLtkghIka_VRRhZ4aYoEcWzViBOWnl26dw01GmLmVrzkj2WnIo-PJ-51ABgyNOLykRgnv5nPslv5y9pcfeSsNGXKCl4iq6XzkGqGZ50AreMfitWUH4kVa8EJPQkV5Fy0TMkyHw/s200/formula2.jpg" alt="" id="BLOGGER_PHOTO_ID_5204222518761667394" border="0" /></a><br /><br />and then SA = (1-1/4)/2 = (3/4)/2 = 3/8<br /><br />and BT = 1/(4*3/8) =1/(3/2) = 2/3<br /><br />Now, the general case shows that<br /><br /><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi6cHtkmOCyyBFPE1Ih3MnQTd7wMQZdDiNi5mJWeoPMO86CFl8yXFs1B_gYeen0kIoaa3veKk9dwnibuitDz3ofprjWJ7Xt3ycNDcdnZx24cFmMuQ91yBV51q75InIEvp8UI6WB/s1600-h/formula3.jpg"><img style="margin: 0px auto 10px; display: block; text-align: center; cursor: pointer;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi6cHtkmOCyyBFPE1Ih3MnQTd7wMQZdDiNi5mJWeoPMO86CFl8yXFs1B_gYeen0kIoaa3veKk9dwnibuitDz3ofprjWJ7Xt3ycNDcdnZx24cFmMuQ91yBV51q75InIEvp8UI6WB/s200/formula3.jpg" alt="" id="BLOGGER_PHOTO_ID_5204227750031833954" border="0" /></a><br /><br />generating the following table, which could be our best friend when creating arbitrary grids is needed:<br /><br /><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgBlTNKNNmbJAjFn6qLRPX4TIYRRyLOdC3tf0bvnK6pOXRdBHQstaAPlI9CP7X2UFMD9XiCeB7bZBtu55b4y5OECYsTlFH8tIMr4bsxedejQ6Jpit9bTS3SZlB6wloYJ1dlHxtv/s1600-h/tabla3.jpg"><img style="margin: 0px auto 10px; display: block; text-align: center; cursor: pointer;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgBlTNKNNmbJAjFn6qLRPX4TIYRRyLOdC3tf0bvnK6pOXRdBHQstaAPlI9CP7X2UFMD9XiCeB7bZBtu55b4y5OECYsTlFH8tIMr4bsxedejQ6Jpit9bTS3SZlB6wloYJ1dlHxtv/s320/tabla3.jpg" alt="" id="BLOGGER_PHOTO_ID_5204232036409195378" border="0" /></a><br />in a future entry we could review the other forms to obtain this table, known as Second and Third Haga Theorems, if there is the interest of course :P<br /><br />muchos saludos...<br /></div>peterselfhttp://www.blogger.com/profile/15778752823201555000noreply@blogger.com1tag:blogger.com,1999:blog-38839897.post-86569145667410816052008-04-06T20:30:00.000-07:002008-04-09T17:06:45.181-07:00The Perfect Model<div style="text-align: justify;">All these years I've thinked on origami as a combination of game, art, perseverance and patience, and fascination. Along in this way I've done several figures and models, all of them showing one or more of these characteristics, and there are those rare exceptions that group all of them on it, being real gems that gives maximun pleasure on folding and gifting them.<br /><br />I taped this third video for Internet, hoping to honour the creation of a great origami author: American Perry Bailey, passed away some years ago, who gave this figure unselfishly to anyone who wishes to fold it, with the real spirit people who practices this craft should have: to be free from his creations, give themselves to the art and not to the art pieces. I hope you enjoy it and helps many to fold this awesome squirrel around the globe.<br /><br /><object width="400" height="326"><param name="movie" value="http://www.youtube.com/v/xFXdL9IevZo&hl=en"></param><param name="wmode" value="transparent"></param><embed src="http://www.youtube.com/v/xFXdL9IevZo&hl=en" type="application/x-shockwave-flash" wmode="transparent" width="400" height="326"></embed></object><br /><br />grandes saludos.<br /></div>peterselfhttp://www.blogger.com/profile/15778752823201555000noreply@blogger.com3tag:blogger.com,1999:blog-38839897.post-12019259991979186082008-03-22T04:14:00.000-07:002008-12-08T20:58:37.500-08:00The ways of the Force<a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgST3rW6g6HBgeHSRwB2itSUxjkWI4p927jdzJ-_v8yGTVAKVUzeUgN7YfX5xBQEI2GPWqYnE4ScimPUQuL8n0OGXNc3UY_jVuHAoTm4wX3ZZyuAKZwJk3icweMbflPE-6lPvXPMw/s1600-h/kawahata.jpg"><img style="margin: 0pt 10px 10px 0pt; float: left; cursor: pointer;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgST3rW6g6HBgeHSRwB2itSUxjkWI4p927jdzJ-_v8yGTVAKVUzeUgN7YfX5xBQEI2GPWqYnE4ScimPUQuL8n0OGXNc3UY_jVuHAoTm4wX3ZZyuAKZwJk3icweMbflPE-6lPvXPMw/s400/kawahata.jpg" alt="" id="BLOGGER_PHOTO_ID_5180529425243832850" border="0" /></a><br /><div style="text-align: justify;">Since I've been in a "video mode", and answering a question on my spanish blog, I've been getting fun all the week taping a video on how to fold the amazing Fumiaki Kawahata's Jedi Master Yoda; a model which always gave me applause, though this time, due to an <span onclick="dr4sdgryt2(event)" style="cursor: pointer;">stage fright</span> it didn't go so well ha!<br /><bk><br /><bk><br /><bk><br /><bk><br /><bk><br /><bk><br /><bk><br /><bk><br />Here a Picture of Kawahata, (it was hard, <br /><a href="http://newblog.oribotics.net/index.php/2007/08/25/origami-tanteidan-13/">http://newblog.oribotics.net/index.php/2007/08/25/origami-tanteidan-13/</a><br />some origamist seem to be very shy..)<br /><br />Diagram is availaible at the Spanish Asociation Forum <a href="http://www.pajarita.org/aep/internacionales/intern2-1.pdf">(here)</a>. They are 7 videos, took me a hell to upload them on Youtube, I hope you enjoy them.<br /></div><br /><br /><br />Origami Master Yoda Fumiaki Kawahata #1a<br /><object height="326" width="400"><param name="movie" value="http://www.youtube.com/v/tIiKWNfxLgY"><embed src="http://www.youtube.com/v/tIiKWNfxLgY" type="application/x-shockwave-flash" height="326" width="400"></embed></object><br /><br />Origami Master Yoda Fumiaki Kawahata #1b<br /><object height="326" width="400"><param name="movie" value="http://www.youtube.com/v/8Hvt9CH-Tx8"><embed src="http://www.youtube.com/v/8Hvt9CH-Tx8" type="application/x-shockwave-flash" height="326" width="400"></embed></object><br /><br />Origami Master Yoda Fumiaki Kawahata #2<br /><object height="326" width="400"><param name="movie" value="http://www.youtube.com/v/Zpf3bMb62-o"><embed src="http://www.youtube.com/v/Zpf3bMb62-o" type="application/x-shockwave-flash" height="326" width="400"></embed></object><br /><br />Origami Master Yoda Fumiaki Kawahata #3<br /><object height="326" width="400"><param name="movie" value="http://www.youtube.com/v/xt-o8lHyOhY"><embed src="http://www.youtube.com/v/xt-o8lHyOhY" type="application/x-shockwave-flash" height="326" width="400"></embed></object><br /><br />Origami Master Yoda Fumiaki Kawahata #4a<br /><object height="326" width="400"><param name="movie" value="http://www.youtube.com/v/PaiHNj5hOmc"><embed src="http://www.youtube.com/v/PaiHNj5hOmc" type="application/x-shockwave-flash" height="326" width="400"></embed></object><br /><br />Origami Master Yoda Fumiaki Kawahata #4b<br /><object height="326" width="400"><param name="movie" value="http://www.youtube.com/v/rDzypczOw-g"><embed src="http://www.youtube.com/v/rDzypczOw-g" type="application/x-shockwave-flash" height="326" width="400"></embed></object><br /><br />Origami Master Yoda Fumiaki Kawahata #4c<br /><object height="326" width="400"><param name="movie" value="http://www.youtube.com/v/BPPsqgcJLu4"><embed src="http://www.youtube.com/v/BPPsqgcJLu4" type="application/x-shockwave-flash" height="326" width="400"></embed></object></bk>peterselfhttp://www.blogger.com/profile/15778752823201555000noreply@blogger.com0tag:blogger.com,1999:blog-38839897.post-8583053111896464362008-03-10T07:50:00.000-07:002008-04-09T17:09:07.679-07:00A Little More on Kawasaki New Rose<bk><br /></bk><div style="text-align: justify;">Checking statistics, the most popular entry (by far) is the one about the Kawasaki New Rose, diagrammed by Winson Chan. <span style="text-decoration: underline;">A year ago</span><a href="http://origamido.blogspot.com/2007/04/mi-taller-en-purranque-la-rosa-kawasaky.html"></a>, I've showed a description about the folding of it, starting with the two main diagonals and not precreasing explicitly that annoying grid at 22.5 deg. I've done a couple of videos to show how I do this, at least on its more complicated steps. The first of them shows the first steps, corresponding to steps 9 to 11 on Chan's diagram, of course without doing the grid.<br /><br /><object width="400" height="326"><param name="movie" value="http://www.youtube.com/v/2Hss1aDTGHs&hl=en"></param><param name="wmode" value="transparent"></param><embed src="http://www.youtube.com/v/2Hss1aDTGHs&hl=en" type="application/x-shockwave-flash" wmode="transparent" width="400" height="326"></embed></object><br /><br />A second video shows how to create the main creases of one of the quadrants.<br /><br /><object width="400" height="326"><param name="movie" value="http://www.youtube.com/v/1E5iOLMVtCo&hl=en"></param><param name="wmode" value="transparent"></param><embed src="http://www.youtube.com/v/1E5iOLMVtCo&hl=en" type="application/x-shockwave-flash" wmode="transparent" width="400" height="326"></embed></object><br /><br />and finally, the closing and finishing of the rose.<br /><br /><object width="400" height="326"><param name="movie" value="http://www.youtube.com/v/mr5DGe5iFZo&hl=en"></param><param name="wmode" value="transparent"></param><embed src="http://www.youtube.com/v/mr5DGe5iFZo&hl=en" type="application/x-shockwave-flash" wmode="transparent" width="400" height="326"></embed></object><br /><br />I hope you enjoy them and that clarifies a little mi confuse diagram, complementing what was already said.</div>peterselfhttp://www.blogger.com/profile/15778752823201555000noreply@blogger.com0tag:blogger.com,1999:blog-38839897.post-61639497532742812722008-02-29T15:56:00.000-08:002008-12-08T20:58:37.542-08:00A Book for Latin America<bk></bk><br /><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh9EA0bCM6_PJkQjW-EpFnjZdshTZZTDNJ5GVWapkU7Co5oNitCpoMkKI39Mz3wyDJAMlLF5sPCMiCy8gH6Xt3nHzir9TL_xXujmnrogULwt5f1brtxGRyzhy-YVB7aolfRj6lMdg/s1600-h/portada_libro2.jpg"><img style="margin: 0px auto 10px; display: block; text-align: center; cursor: pointer;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh9EA0bCM6_PJkQjW-EpFnjZdshTZZTDNJ5GVWapkU7Co5oNitCpoMkKI39Mz3wyDJAMlLF5sPCMiCy8gH6Xt3nHzir9TL_xXujmnrogULwt5f1brtxGRyzhy-YVB7aolfRj6lMdg/s320/portada_libro2.jpg" alt="" id="BLOGGER_PHOTO_ID_5172527592669199074" border="0" /></a><br /><p style="margin-bottom: 0cm; text-align: justify;">One of the works I was involved this year on the III Chilean International Convention was the edition of the conmemorative book of it. We had a deep debt with many authors who had sent their works for the last year's book and weren't published because the reception was closed and the book was already been printed; several friends from Mexico, Colombia and Bolivia, among other countries.<br /></p><p style="margin-bottom: 0cm; text-align: justify;">Our Region does not have enough media nor publications to show and share the enormous work that hundreds of creators do in silence, with remarkable devotion and dedication. We decided then to put an special latin american accent on this year's book, trying to collect a wide number of works from many countries and different levels of hardness. Someway, it went beyond our craziest dreams: More than 40 models, from 11 countries, form th 130 pages of this book, where pressence of Masters Nicolas terry from France, Román Díaz from Uruguay, Daniel Naranjo from Colombia and Fernando Gilgado from Spain honore us far beyond our expectations, setting us a hard mark for next year.<br /></p><br />With pride and humility I present here the Index of figures (in spanish), in a way to spread the existence of this beautiful book in which we put so much work and love. I want to highlight specially the gorgeous stars from a great friend and talented friend, since now unplublished: Aldo Marcell from Nicaragua, altogether with the huge group of friends from Colombia who sent us their fantastic models.<br /><p style="margin-bottom: 0cm; text-align: justify;"><br /><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjMEsQqGmz-Pcpth5TXPA15xVKs72eko6T7e85NRByVLNi4bJgiN9C6YGuGi_Q5TJ7PWZbWBZxPqvRCTBO5BxBgS2dAVegxBl5GUXuFulMFSljTZavuocqqIT2Sn7lBfa-morGrLg/s1600-h/Page3.jpg"><img style="margin: 0pt 10px 10px 0pt; float: left; cursor: pointer;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjMEsQqGmz-Pcpth5TXPA15xVKs72eko6T7e85NRByVLNi4bJgiN9C6YGuGi_Q5TJ7PWZbWBZxPqvRCTBO5BxBgS2dAVegxBl5GUXuFulMFSljTZavuocqqIT2Sn7lBfa-morGrLg/s320/Page3.jpg" alt="" id="BLOGGER_PHOTO_ID_5172532643550739234" border="0" /></a><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjT0ulBu2jYEPDna_RoPse46zpNnD-xCswqNSCYcedM2az8J6flMCnzhYe8r-LiUC1x4g-zIyo9l0IRu3eyFsjfGUJZAS_lucLOTr84fCUJ6jSEl8NS61qJlzTdBJFHff_fr1BlzA/s1600-h/Page4.jpg"><img style="cursor: pointer;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjT0ulBu2jYEPDna_RoPse46zpNnD-xCswqNSCYcedM2az8J6flMCnzhYe8r-LiUC1x4g-zIyo9l0IRu3eyFsjfGUJZAS_lucLOTr84fCUJ6jSEl8NS61qJlzTdBJFHff_fr1BlzA/s320/Page4.jpg" alt="" id="BLOGGER_PHOTO_ID_5172533210486422322" border="0" /></a><br /><br /><bk>We wish this to be a contribution, our contribution, to the latin american bibliography we must build together, which reflects our work and our way, and be a testimony, among others and to History, about the art of paperfolding in our Continent.<br /></bk></p>peterselfhttp://www.blogger.com/profile/15778752823201555000noreply@blogger.com0tag:blogger.com,1999:blog-38839897.post-85457706477213369542008-02-21T01:55:00.000-08:002008-12-08T20:58:37.629-08:00Origami at the Edge of the world<a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjDjrzE6V_lS25VyF9Hr7WWEJcrOhY0n6aUzikD5lllZBxgZgOIONF_gQwtrX8ueJu9kmB_bfO4Iqay9SLfTyprTS65bHEm4XSMAKfbaGbM8OYx8JsfE3ppeNtc1tb8r9a4qkod/s1600-h/purranque0089.JPG"><img style="margin: 0px auto 10px; display: block; text-align: center; cursor: pointer;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjDjrzE6V_lS25VyF9Hr7WWEJcrOhY0n6aUzikD5lllZBxgZgOIONF_gQwtrX8ueJu9kmB_bfO4Iqay9SLfTyprTS65bHEm4XSMAKfbaGbM8OYx8JsfE3ppeNtc1tb8r9a4qkod/s320/purranque0089.JPG" alt="" id="BLOGGER_PHOTO_ID_5169183124173115058" border="0" /></a><br /><div style="text-align: justify;">Third International Origami Convention on Chile finished las Sunday in the southern town of Purranque and we had an incredible time. Though we were a few less than last year and we missed some deep friends that couldn't make the travel here mostly due to economical reasons everything was perfect and we experienced great moments, an exhibition with a great level, excellent workshops, an amazing book (three clues: Román Díaz, Nicholas Terry and Daniel Naranjo, among 40 other creators from more than 11 countries) and a vast number of moments to share and grow in the origami friendship.<br /><br /></div><span style="font-size:130%;">The Exhibition.<br /><br /></span><br /><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEguerooiuYtXUKnuF9Yt6G80m-M3ZXej3Ym2k7hRqV8P8qsQmrj0HW3cNMo-6Cb-nQHyxjrawrEORi-9PMW-yp9H01fXatq6-Rcw0HdP83KnMK01jvnXkl_ZrEj9dcn-DIMU2Gk/s1600-h/purranque0106.JPG"><img style="margin: 0px auto 10px; display: block; text-align: center; cursor: pointer;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEguerooiuYtXUKnuF9Yt6G80m-M3ZXej3Ym2k7hRqV8P8qsQmrj0HW3cNMo-6Cb-nQHyxjrawrEORi-9PMW-yp9H01fXatq6-Rcw0HdP83KnMK01jvnXkl_ZrEj9dcn-DIMU2Gk/s320/purranque0106.JPG" alt="" id="BLOGGER_PHOTO_ID_5169188699040665378" border="0" /></a><br /><br /><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEipgd34uzeYg_Ro4V8ViHADPRA1zJGmiRBBnAM7KYf9ty3m2WomMnItig4ZPYXSoSsn0xzdn6uGKHFGWr3kUZbAErdxlr6coFsTi_zE9mnaXxGC8UkzSGOaGxlBnMNtx6QnXlDp/s1600-h/purranque0022.JPG"><img style="margin: 0px auto 10px; display: block; text-align: center; cursor: pointer;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEipgd34uzeYg_Ro4V8ViHADPRA1zJGmiRBBnAM7KYf9ty3m2WomMnItig4ZPYXSoSsn0xzdn6uGKHFGWr3kUZbAErdxlr6coFsTi_zE9mnaXxGC8UkzSGOaGxlBnMNtx6QnXlDp/s320/purranque0022.JPG" alt="" id="BLOGGER_PHOTO_ID_5169183605209452226" border="0" /></a><br /><br /><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgv9613M57vuqskVHcFaa5I57a9K5-mBVw7glXl_fGGymX1kYUk5vcdN17VT-3VwIUfJnsL_Xipkssh-lAgY83e9dhgtxxZNcQ0f-ldP7h5FOyzlbn_8fuR0utJA6M0PiI5k613/s1600-h/purranque0101.JPG"><img style="margin: 0px auto 10px; display: block; text-align: center; cursor: pointer;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgv9613M57vuqskVHcFaa5I57a9K5-mBVw7glXl_fGGymX1kYUk5vcdN17VT-3VwIUfJnsL_Xipkssh-lAgY83e9dhgtxxZNcQ0f-ldP7h5FOyzlbn_8fuR0utJA6M0PiI5k613/s320/purranque0101.JPG" alt="" id="BLOGGER_PHOTO_ID_5169186427002965762" border="0" /></a><br /><br /><div style="text-align: justify;">Origamists from Chile, Colombia and Argentina arrived to Purranque to show a great group of works from several countries and a great level. Among them were the beautiful collection sent by our friends in Colombia, the works of Patricio Kunz about figures of Kamiya and his own, the modular works of Noelia Avila and Beatriz Gonzalez from Argentina and Chile, the amazing models of Nicolas Gajardo (one of our local credits), which its astonishing Hunter Eagle won the Best Figure's Prize of the Convention, the chilean Fauna models from Miguel Kaiser and many, many others. I humbly presented a large Hojio Takashi's Icarus in Aconcagua paper of 91x91 cm and a Roman Diaz's Unicorn in the same format, altogether with some old foldings.<br /><br /></div><br /><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjz8hfxuVNV6qHpBkurikgQiJ43snaIMr7YQH31WU1HB1DFQCQmkEt14TmDNVGsWoHzgX5a9iFHUyA55WY72Rd9XFZs7XicRaEjjnoRtsgDcQhiJfIaD5lQflcsyJRDlojiOZbe/s1600-h/purranque0030.JPG"><img style="margin: 0px auto 10px; display: block; text-align: center; cursor: pointer;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjz8hfxuVNV6qHpBkurikgQiJ43snaIMr7YQH31WU1HB1DFQCQmkEt14TmDNVGsWoHzgX5a9iFHUyA55WY72Rd9XFZs7XicRaEjjnoRtsgDcQhiJfIaD5lQflcsyJRDlojiOZbe/s320/purranque0030.JPG" alt="" id="BLOGGER_PHOTO_ID_5169185512174931682" border="0" /></a><br /><br /><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi2MvxcJjmaRO_9axjwswg6qZgXx7ikjr3ljr1LneEFBBrcEKma1P9vxaVwtaDKFBtvGrQgSW4GgcvNEjCLIUcGjmeEuLkJ9NnyPOR1CsyPATsmNdtIDuNT0xUkhqjQrdPvzYLB/s1600-h/purranque0096.JPG"><img style="margin: 0px auto 10px; display: block; text-align: center; cursor: pointer;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi2MvxcJjmaRO_9axjwswg6qZgXx7ikjr3ljr1LneEFBBrcEKma1P9vxaVwtaDKFBtvGrQgSW4GgcvNEjCLIUcGjmeEuLkJ9NnyPOR1CsyPATsmNdtIDuNT0xUkhqjQrdPvzYLB/s320/purranque0096.JPG" alt="" id="BLOGGER_PHOTO_ID_5169187775622696722" border="0" /></a><br /><br /><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgfqgAddw8A_s-pIf91NjgjewcNZgbX8qoiLZ1AIL-kI1ua3XdD08vgGw6JVRXHSgJAp8uDbSK29mrJjHYXrzfI7uuYPmLoRvIxZ7_32aWbQTP9kDcSo5ka8X0SyMBnAVLJ2etn/s1600-h/purranque0023.JPG"><img style="margin: 0px auto 10px; display: block; text-align: center; cursor: pointer;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgfqgAddw8A_s-pIf91NjgjewcNZgbX8qoiLZ1AIL-kI1ua3XdD08vgGw6JVRXHSgJAp8uDbSK29mrJjHYXrzfI7uuYPmLoRvIxZ7_32aWbQTP9kDcSo5ka8X0SyMBnAVLJ2etn/s320/purranque0023.JPG" alt="" id="BLOGGER_PHOTO_ID_5169189953171115826" border="0" /></a><br /><br /><span style="font-size:130%;">The Workshops.</span><br /><br /><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh_VLgKJiyVR7CUdvG0uPD6OaEcK8p9gIgqxiqt61RJOA_-AbTfThB-cfJe4CHMWYxSZfXp5czlGwV504207fDb3h3dut0X_wZ6djzYJX6kaHHqIWCR3BXIwpYyv5QZ0i90KqBM/s1600-h/purranque0128.JPG"><img style="margin: 0px auto 10px; display: block; text-align: center; cursor: pointer;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh_VLgKJiyVR7CUdvG0uPD6OaEcK8p9gIgqxiqt61RJOA_-AbTfThB-cfJe4CHMWYxSZfXp5czlGwV504207fDb3h3dut0X_wZ6djzYJX6kaHHqIWCR3BXIwpYyv5QZ0i90KqBM/s320/purranque0128.JPG" alt="" id="BLOGGER_PHOTO_ID_5169191701222805330" border="0" /></a><br /><br /><div style="text-align: justify;">The Double Tissue Paper Workshop, given by Miguel Kaiser, the Optimized Box Pleating, from Nico Gajardo, the Flexicube of argentinean Meri Affranchino , Origami in spiral, Noelia's workshop, highlighted between many others with great results. Me, at least this year I could keep my students interested until the end of the class hehehe (excellent students also :) ).<br /><br /></div><br /><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj6ZitqAHNGeToCPEGX4bleE3lJQ-t5a2Nn6cqOCqVjRBoBLOcFDWMyYTGWD00H0TLV7lHtKk0Z9iV7d7IVyz0m7Q3Vq9nSZfQD5lHC83jB5DmG7rpZfyWM8noD8rsMPjPEi25U/s1600-h/purranque0085.JPG"><img style="margin: 0px auto 10px; display: block; text-align: center; cursor: pointer;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj6ZitqAHNGeToCPEGX4bleE3lJQ-t5a2Nn6cqOCqVjRBoBLOcFDWMyYTGWD00H0TLV7lHtKk0Z9iV7d7IVyz0m7Q3Vq9nSZfQD5lHC83jB5DmG7rpZfyWM8noD8rsMPjPEi25U/s320/purranque0085.JPG" alt="" id="BLOGGER_PHOTO_ID_5169191138582089538" border="0" /></a><br /><br /><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgxl712u5NdHwvH_jOaWhrJlXFlruq6APP9q3iGhTU74QhHZuDjPi-jFxgIIJGY2GQ5ffdwmw_iFmzqzgw1w6THmalTfMi-6UbN9C0aVt_Wiu1XAOHkr57GjH4DuN62SLD4FR1Y/s1600-h/purranque0037.JPG"><img style="margin: 0px auto 10px; display: block; text-align: center; cursor: pointer;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgxl712u5NdHwvH_jOaWhrJlXFlruq6APP9q3iGhTU74QhHZuDjPi-jFxgIIJGY2GQ5ffdwmw_iFmzqzgw1w6THmalTfMi-6UbN9C0aVt_Wiu1XAOHkr57GjH4DuN62SLD4FR1Y/s320/purranque0037.JPG" alt="" id="BLOGGER_PHOTO_ID_5169193200166391650" border="0" /></a><br /><br /><span style="font-size:130%;">Saturday Night Party.</span><br /><br />Just a couple of pictures to you figure out how was it :D ...<br /><br /><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgWlLkLUAZ_b2au6QE064XeDnzG3UK-JW-aXSFbsc6Hv-i83p1lRp9JaHrE2JZKBRuk9yw7xgFYr5AMxPgbZJA6H_UkkQRiB4eL0bfP3kicCzRlD9IGv35lv-u1OWpjwJYP0tNK/s1600-h/purranque0169.JPG"><img style="margin: 0px auto 10px; display: block; text-align: center; cursor: pointer;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgWlLkLUAZ_b2au6QE064XeDnzG3UK-JW-aXSFbsc6Hv-i83p1lRp9JaHrE2JZKBRuk9yw7xgFYr5AMxPgbZJA6H_UkkQRiB4eL0bfP3kicCzRlD9IGv35lv-u1OWpjwJYP0tNK/s320/purranque0169.JPG" alt="" id="BLOGGER_PHOTO_ID_5169193951785668466" border="0" /></a><br /><br /><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiTcyUWQDlV3jWM5ipxOCCEMv4iJmb0GXHVlBKK5Ot6RS_UXx1TleXzWjA1mtDoqM-XmJQxt4GZ9yQX-q1w5P0YL14svYgLLiZGjXyrkJzK0FctysdKKz4rkoXktF591L9oJ-Nr/s1600-h/purranque0173.JPG"><img style="margin: 0px auto 10px; display: block; text-align: center; cursor: pointer;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiTcyUWQDlV3jWM5ipxOCCEMv4iJmb0GXHVlBKK5Ot6RS_UXx1TleXzWjA1mtDoqM-XmJQxt4GZ9yQX-q1w5P0YL14svYgLLiZGjXyrkJzK0FctysdKKz4rkoXktF591L9oJ-Nr/s320/purranque0173.JPG" alt="" id="BLOGGER_PHOTO_ID_5169194295383052162" border="0" /></a><br /><br /><span style="font-size:130%;">The Trip to the National Park and Resrve of Puyehue.</span><br /><br /><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEibhNg7wKQjRs455Dg79JuFmBW4ROc71tcfqX9PtieezvPdKB984phwQUUKQIQtzLxtPMuqkGj606fdeFFxf9y4oCsFlk5aoeoAsRGpjy9lZ0lkCvJr6u3PSawPlfljqGvXULyk/s1600-h/purranque0232.JPG"><img style="margin: 0px auto 10px; display: block; text-align: center; cursor: pointer;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEibhNg7wKQjRs455Dg79JuFmBW4ROc71tcfqX9PtieezvPdKB984phwQUUKQIQtzLxtPMuqkGj606fdeFFxf9y4oCsFlk5aoeoAsRGpjy9lZ0lkCvJr6u3PSawPlfljqGvXULyk/s320/purranque0232.JPG" alt="" id="BLOGGER_PHOTO_ID_5169194806484160402" border="0" /></a><br /><br /><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEicn7Db4NAzXqkGttTM_-gpp-QT6GLSzDxC8iG5S-jXpI9qJtoZvvHcVNBn3JiKlju6KMLUfYHLojx7l6LZkZxqngvmX-c6ZsyNzrAVvtLwzMVNDD94oGEfO463sd2TJlBwnGjo/s1600-h/purranque0200.JPG"><img style="margin: 0px auto 10px; display: block; text-align: center; cursor: pointer;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEicn7Db4NAzXqkGttTM_-gpp-QT6GLSzDxC8iG5S-jXpI9qJtoZvvHcVNBn3JiKlju6KMLUfYHLojx7l6LZkZxqngvmX-c6ZsyNzrAVvtLwzMVNDD94oGEfO463sd2TJlBwnGjo/s320/purranque0200.JPG" alt="" id="BLOGGER_PHOTO_ID_5169195936060559298" border="0" /></a><br /><br /><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjhCFBX65J4a-Y7LKFPO06hiBgLY1cbMgqiwotE37qKybMIQKD_hZW4iP_QxA4EWnZmQ6xm4xIrmvMVjCvEAlFX4RLpp1T7FI6jF0B7AH79YRGMM-gHUzFa1oX64VEop1QIlSTV/s1600-h/purranque0199.JPG"><img style="margin: 0px auto 10px; display: block; text-align: center; cursor: pointer;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjhCFBX65J4a-Y7LKFPO06hiBgLY1cbMgqiwotE37qKybMIQKD_hZW4iP_QxA4EWnZmQ6xm4xIrmvMVjCvEAlFX4RLpp1T7FI6jF0B7AH79YRGMM-gHUzFa1oX64VEop1QIlSTV/s320/purranque0199.JPG" alt="" id="BLOGGER_PHOTO_ID_5169195811506507698" border="0" /></a><br /><br /><div style="text-align: justify;">Perhaps the best activity of the Convention. Taking advantage of the proximity with one of the gorgeoust and biodiverse chilean Natural Reserve, the last day of the Weekend we detined to visit the evergreen forests and the astonishing rivers of the southest corners of the world, memories we will carry on our hearts forever.<br /><br /></div><br /><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgJ5KqYmKqNqRX6Heb-LKSycskBIp5pBRmjM6pdVq4_IJf0P95e6rGRvOqt08FVgUUL8xreebAyzNRO_Wka8vshSIJqHpfpsFJWOYIU9atU0JC4r72jHYiXb0kb00SMVUuLeZx3/s1600-h/purranque0228.JPG"><img style="margin: 0px auto 10px; display: block; text-align: center; cursor: pointer;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgJ5KqYmKqNqRX6Heb-LKSycskBIp5pBRmjM6pdVq4_IJf0P95e6rGRvOqt08FVgUUL8xreebAyzNRO_Wka8vshSIJqHpfpsFJWOYIU9atU0JC4r72jHYiXb0kb00SMVUuLeZx3/s320/purranque0228.JPG" alt="" id="BLOGGER_PHOTO_ID_5169196262478073810" border="0" /></a><br /><br /><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEimPy6fSpPnU542-kaYlFc59m3pExHj0G_J038zfcoeLszM8yN1X2ElYw8EyV2iuKpyGZIaOO8x_bV9F6hxToAjW-0X3rvZtksrzL2AfaFGm1AvyIoWB0UTV604jNP-bZDW2PAA/s1600-h/purranque0259.JPG"><img style="margin: 0px auto 10px; display: block; text-align: center; cursor: pointer;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEimPy6fSpPnU542-kaYlFc59m3pExHj0G_J038zfcoeLszM8yN1X2ElYw8EyV2iuKpyGZIaOO8x_bV9F6hxToAjW-0X3rvZtksrzL2AfaFGm1AvyIoWB0UTV604jNP-bZDW2PAA/s320/purranque0259.JPG" alt="" id="BLOGGER_PHOTO_ID_5169196580305653730" border="0" /></a><br /><br /><div style="text-align: justify;">But beyond all those expriences, again the very best of this meeting were the people, it was a closed and plenty of friendship encounter, which filled up us of strength and enthusiasm for the next challenges and projects we have planned for the next years as an organization. From here I send a deep hug to all of them and wait to meet them again soon, together with the friend that couldn't make it this year.<br /><br /></div>If you wish, you can see all the pictures I took this year, on this <a href="http://picasaweb.google.com/self.peter/Purranque2008">gallery</a> .<br /><br />Many greetings to all.peterselfhttp://www.blogger.com/profile/15778752823201555000noreply@blogger.com0tag:blogger.com,1999:blog-38839897.post-17613784250772375602008-01-10T02:39:00.000-08:002008-12-08T20:58:37.773-08:00Three Days to Grow Up<a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgSw7-fKmZi_LOQMGVZcMv3Tdk-gnMroksp1bKHPL607av3feCS-6oJadjAO1XwOqfcZsTIZXrX6RMvxAhUxPmKLwENGCvOI0Y0qG9EK6dbIK8Uhv8Krs1UQITgb1guWRX0aY70JA/s1600-h/invitacion_ingles.jpg"><img style="margin: 0px auto 10px; display: block; text-align: center; cursor: pointer;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgSw7-fKmZi_LOQMGVZcMv3Tdk-gnMroksp1bKHPL607av3feCS-6oJadjAO1XwOqfcZsTIZXrX6RMvxAhUxPmKLwENGCvOI0Y0qG9EK6dbIK8Uhv8Krs1UQITgb1guWRX0aY70JA/s400/invitacion_ingles.jpg" alt="" id="BLOGGER_PHOTO_ID_5153795848125605234" border="0" /></a><br /><br /><br /><div style="text-align: justify;">The Third Chilean Origami Convention is at hand and, as the last year, there will be three intense days of workshops, exposition and meeting of friends. People from Argentina, Peru, Brasil, Central América, maybe Spain, will gather the second weekend of February in the deep south of Chile, in the beautiful and easy town of Purranque on the Xth Region de Los Lagos.<br /><br />I extend here the invitation to all of you to make the effort of joining this incredible experience. To travel to Chile is as hard as beautiful, but certainly worth of. Last year we shared with Masters Roman Diaz and Heinz Strobl, who made the expo a real luxury; this year the newiwill be the expedition to one of the gorgeust and most diverse Nature Reserve of the country, on the last day; we will lose in secret paths between the Evergreen woods, the hidden lakes and the thermal springs of the National Park Puyehue, at the bottom of the Andes High Mountains.<br /><br /><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjkUE8PRNa1zJk8ZpAQ3NGCdOhIQ7oTkJ6qra4SK6jfsnVjLzfMaZYJ-5gMUniVnJmgG-k6kACqo4Zul0VvEC6Mt5FmT0BI2pW55RHDFbDDTC5hjKZnAPrcOOsxkrM3llFtz6uZ/s1600-h/100_3224.JPG"><img style="margin: 0px auto 10px; display: block; text-align: center; cursor: pointer;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjkUE8PRNa1zJk8ZpAQ3NGCdOhIQ7oTkJ6qra4SK6jfsnVjLzfMaZYJ-5gMUniVnJmgG-k6kACqo4Zul0VvEC6Mt5FmT0BI2pW55RHDFbDDTC5hjKZnAPrcOOsxkrM3llFtz6uZ/s320/100_3224.JPG" alt="" id="BLOGGER_PHOTO_ID_5153794340592084290" border="0" /></a><br /><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiLz5ZhNcl9TNtWzn75DihBB1fVEb7qb5IDlF-S92rgNTnRtYh8tvp2bn5wNmGqjl8hzAU6txohC4lnHVaeSWTVuh_9ETTLucebEyhjfTgd9D5dNUPWjy7wvUvJSfsQyn7TTl71/s1600-h/anticura6.jpg"><img style="margin: 0px auto 10px; display: block; text-align: center; cursor: pointer;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiLz5ZhNcl9TNtWzn75DihBB1fVEb7qb5IDlF-S92rgNTnRtYh8tvp2bn5wNmGqjl8hzAU6txohC4lnHVaeSWTVuh_9ETTLucebEyhjfTgd9D5dNUPWjy7wvUvJSfsQyn7TTl71/s320/anticura6.jpg" alt="" id="BLOGGER_PHOTO_ID_5153794709959271778" border="0" /></a><br /><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhmk7Rv-LOSxkUyHCmsyJH_4t0h07ctbc4LMsWTSXoDwehy30i7Gwz_yHSC5EIlCfOxL37pldnbRfugHj2D5gJpdpyL8rpRXElmWp7rlWijOrT8FhL-8fvbVCPpyLwNjfoBMwlI/s1600-h/anticura12.jpg"><img style="margin: 0px auto 10px; display: block; text-align: center; cursor: pointer;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhmk7Rv-LOSxkUyHCmsyJH_4t0h07ctbc4LMsWTSXoDwehy30i7Gwz_yHSC5EIlCfOxL37pldnbRfugHj2D5gJpdpyL8rpRXElmWp7rlWijOrT8FhL-8fvbVCPpyLwNjfoBMwlI/s320/anticura12.jpg" alt="" id="BLOGGER_PHOTO_ID_5153794632649860434" border="0" /></a><br /><br />Visit <a href="http://www.origamichile.cl/">Origami Chile</a> website to <a href="http://www.origamichile.cl/purranque_2008/index_purranque_2008.html">join</a> the Convention, believe me it will be quite and adventure. I'm already preparing my figures and anxiously waiting to February, to met again great friends and new ones, I leave you also the detail of the last day's <a href="http://www.keepandshare.com/doc/view.php?id=335616&da=y">Nature Raid</a>.<br /><br /><br /></div><br /><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi5YVFHT8SVe1ueOmZs5StpjcTE54kD6I-V82HJ2tFT_17IK14bXs-bVk_4LEUNJxnso6z6lbfbjFKB3UHHfW1cwxTYw4-vL9K3z0xHJ2KkulIDXJyQefga3V777hS5bPjZCCmJ/s1600-h/IMG_0113b.jpg"><img style="margin: 0px auto 10px; display: block; text-align: center; cursor: pointer;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi5YVFHT8SVe1ueOmZs5StpjcTE54kD6I-V82HJ2tFT_17IK14bXs-bVk_4LEUNJxnso6z6lbfbjFKB3UHHfW1cwxTYw4-vL9K3z0xHJ2KkulIDXJyQefga3V777hS5bPjZCCmJ/s400/IMG_0113b.jpg" alt="" id="BLOGGER_PHOTO_ID_5153780420603077938" border="0" /></a>peterselfhttp://www.blogger.com/profile/15778752823201555000noreply@blogger.com0tag:blogger.com,1999:blog-38839897.post-64599195465942998702007-11-30T08:51:00.000-08:002008-12-08T20:58:37.815-08:00Great Experiences<bk><br /><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjDPVmrws5wIPZLIVYapSxlzYU0CuiCzEptadY1yFTAwv9xMMwququC6CRtQhRAjaMpW4N4ryp1GI2SYrpo2nnghmhXqGiLhwFzhGkp779BQo3ACFEXyL6gTwsQKiWHKLb88Xkt/s1600-h/cusco0006.JPG"><img style="margin: 0px auto 10px; display: block; text-align: center; cursor: pointer;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjDPVmrws5wIPZLIVYapSxlzYU0CuiCzEptadY1yFTAwv9xMMwququC6CRtQhRAjaMpW4N4ryp1GI2SYrpo2nnghmhXqGiLhwFzhGkp779BQo3ACFEXyL6gTwsQKiWHKLb88Xkt/s320/cusco0006.JPG" alt="" id="BLOGGER_PHOTO_ID_5138382244150213426" border="0" /></a><br /></bk><div style="text-align: justify;">It's been a month since I've returned from Peru, there I assisted to Cusco's First International Origami Convention. It was the second international meeting I've gone since I decided to open myself to worldwide community. There I met wonderful people and get amazed as only travels can amaze and shake the inner world of human being.<br /><br />People like Nicaraguan Aldo Marcell, who in his solitude and conviction have developed incredible figures and an impressive spirit to understand representation and nature. His work as a botanic and his fascination for observing living things (humans included) allowed me to find in him a complex and balanced aesthetic in a slightly shy but reflexive person. Here you can see a small sample of his works, his amazing modular stars and a glimpse of the table he shared with chilean Beatriz Gonzalez and argentinean Meri Affranchino in the meeting's expo.<br /><br /><br /><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg2D6zIASdJsjXKoQ3HhXo7vrHmo3n5qiTLPvnlKrubclOBxJ9pPNKX0F12_KFXWEXGZ5qDHYQtlbggtyI9nE3fQLEtpdXXaw9f3SGMgzTQ88IOR_9KZgyIdTjyipUT3EA8F6Gu/s1600-h/cusco30022.JPG"><img style="margin: 0px auto 10px; display: block; text-align: center; cursor: pointer;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg2D6zIASdJsjXKoQ3HhXo7vrHmo3n5qiTLPvnlKrubclOBxJ9pPNKX0F12_KFXWEXGZ5qDHYQtlbggtyI9nE3fQLEtpdXXaw9f3SGMgzTQ88IOR_9KZgyIdTjyipUT3EA8F6Gu/s320/cusco30022.JPG" alt="" id="BLOGGER_PHOTO_ID_5138383661489421186" border="0" /></a><br /><br /><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhBnO9MD-Uea67aAuos3B1hz0IzCUeqXu73yMTqOhtIDyZLn6d7ocrtgEFE7SGGQEu1jmRlKpDqtv8pYefzIknHWClJT35k6SeCj2zqm4rorwjK4Gri9B6Kj4oa2SstL4D1WhPB/s1600-h/cusco30020.JPG"><img style="margin: 0px auto 10px; display: block; text-align: center; cursor: pointer;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhBnO9MD-Uea67aAuos3B1hz0IzCUeqXu73yMTqOhtIDyZLn6d7ocrtgEFE7SGGQEu1jmRlKpDqtv8pYefzIknHWClJT35k6SeCj2zqm4rorwjK4Gri9B6Kj4oa2SstL4D1WhPB/s320/cusco30020.JPG" alt="" id="BLOGGER_PHOTO_ID_5138383249172560754" border="0" /></a><br />Also I met Diego Quevedo, from Colombia, CP solver, owner of an affective and honest personality, a great friend that I hope he can make to Chile on February for our Meeting. Here dictating his workshop on Cusco.<br /><br /><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgZVEmzQZwdaBrlSZvBOeirlc5ZtM6MqmgV8TFfARAb5Y3HvamBfRwyBTiHLnEAFpwzr1QtZK_FxuUEeVhH-QBVUta8i2H2IVb8n-c84u17EMIbVUDWzJtnmKLdGlq-ObiuoujG/s1600-h/cusco0010.JPG"><img style="margin: 0px auto 10px; display: block; text-align: center; cursor: pointer;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgZVEmzQZwdaBrlSZvBOeirlc5ZtM6MqmgV8TFfARAb5Y3HvamBfRwyBTiHLnEAFpwzr1QtZK_FxuUEeVhH-QBVUta8i2H2IVb8n-c84u17EMIbVUDWzJtnmKLdGlq-ObiuoujG/s320/cusco0010.JPG" alt="" id="BLOGGER_PHOTO_ID_5138382733776485202" border="0" /></a><br /><br />And then there were the guys from Origami Cusco, Antarki, Roy, Omar, Johnathan (and the remaining that my memory failed), a gang which I get really fitted. Hyperactives and great sense of humor haha. It's really amazing the youth of the whole group there, however their works are at the highest level. Made me laugh a lot since they expected me like some sort of celebrity or expert :lol: Also must recognize that our difference in age worried me at the beggining, but moment to moment with a good doze of jokes we felt part of the same experience and we all enjoyed it in the same level. Their enthusiasm and naturally to face every challenge pushed me to renew my votes and look forward a year specially hard for me and when, paradoxically my practice of origami have exploded and conquer an important place in my present.<br /><br />here part of the gang...<br /><br /><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgvOrEq5kjUP6CsTNcO56pKRCwUcBHtNOKolis7gth0CknZbJAwlubIl8H4nxyp8qM-9a1hcSECFF7tFlRZE93jmdaoA0sLVw-TTd75xdSefpS2HJVmmlZOI4rBtMH8evzExLld/s1600-h/cusco30050.JPG"><img style="margin: 0px auto 10px; display: block; text-align: center; cursor: pointer;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgvOrEq5kjUP6CsTNcO56pKRCwUcBHtNOKolis7gth0CknZbJAwlubIl8H4nxyp8qM-9a1hcSECFF7tFlRZE93jmdaoA0sLVw-TTd75xdSefpS2HJVmmlZOI4rBtMH8evzExLld/s320/cusco30050.JPG" alt="" id="BLOGGER_PHOTO_ID_5138384017971706770" border="0" /></a><br /><br />Ten years ago I travelled to Cusco, then I was at University and prepared to live life in a full throttle way ans that was one of the best experiences in my life; I'm very happy that my return allowed me to find out that, some years older and sadder, life shows to me same as before, full of beauty, humor, emotions and people. A special greetings to Roberto Romero, a man who risk himself for what he believes and puts himselfin the frontline at the moment to materialize visions and projects. His organization of this Convention was impressive and fail proof, showing me an aspect of origami as important as forgotten: his social effect.<br /><br /><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjILLX9-7JtmAD6_8few5g978kim9pteIrNDu0FSr8NxMKfMPLF4qzYY6ccGC5nwiR7abKbmTZXJeNxdYnUNuR3it1O3bSCjHFeWeAQ4Ff9IIxBV-X0F3aUuuJg7VySeUeRNZ9d/s1600-h/cusco0011.JPG"><img style="margin: 0px auto 10px; display: block; text-align: center; cursor: pointer;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjILLX9-7JtmAD6_8few5g978kim9pteIrNDu0FSr8NxMKfMPLF4qzYY6ccGC5nwiR7abKbmTZXJeNxdYnUNuR3it1O3bSCjHFeWeAQ4Ff9IIxBV-X0F3aUuuJg7VySeUeRNZ9d/s320/cusco0011.JPG" alt="" id="BLOGGER_PHOTO_ID_5138382574862695234" border="0" /></a><br /><br />I've started on Origami as a personal activity, even selfish; sometimes we left on our own ego and carry our challenges to try to get excellence and perfection on our folds. This meeting just wired us to Earth; we gave workshop almost daily, from schools plenty of childrens to grown women on reinsertion. I've faced my reality, I have serious difficulties to teach begginers, people interested to start like my many years ago, I had to learn on the hall (thanks to Patricio Kunz) one or two effective figures to teach; but the experience of teaching and learning at the same time I had to get it myself, beautiful and hard.<br /><br />Origami is an art, since it's representation, a language on which we represent, however is also therapy and game, we do not have to forget, helps a lot of people, like it helps us all, and it is magic also, to bring out a dove from a piece of paper, to make a penguin from nothing and make dream a human being with penguins and fantasies. That was the best I brought from Cusco, a real lesson I intend to use.<br /><br /><a href="http://picasaweb.google.com/self.peter/Cusco2007">I've plublished the few pictures</a> that I could rescue from my camera, also you can visit <a href="http://origamicusco.blogspot.com/">the web of Origami Cusco</a>, there you can see the wonderful figures and moments we shared on Peru.<br /><br /><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgMdvY_C8RQVZ_fPlGUO0gj44QmO4sz4zJUrpsUVeM2vHWTFq29fx13bRro_OiAwZHpdsTcIICWeSqC4THkPd1vjwl53IYSectajRuKm4xJzLg1vLVgTCH2XrARveT5rbNO4sTk/s1600-h/cusco0016.JPG"><img style="margin: 0px auto 10px; display: block; text-align: center; cursor: pointer;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgMdvY_C8RQVZ_fPlGUO0gj44QmO4sz4zJUrpsUVeM2vHWTFq29fx13bRro_OiAwZHpdsTcIICWeSqC4THkPd1vjwl53IYSectajRuKm4xJzLg1vLVgTCH2XrARveT5rbNO4sTk/s320/cusco0016.JPG" alt="" id="BLOGGER_PHOTO_ID_5138382854035569506" border="0" /></a><br /><br /></div>peterselfhttp://www.blogger.com/profile/15778752823201555000noreply@blogger.com0tag:blogger.com,1999:blog-38839897.post-80007574708297238112007-11-02T09:41:00.000-07:002008-12-08T20:58:37.859-08:00The Paper (Chapter 4)<a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiR6sxtbud53hUn11NCG_4tMlgkfQzV-p4UmP_vRFxI-ocltM-l3mLKGnimRyKU8vX59YtBFRnc87PW0akMVByBRTBuY9XqeN3M74HKDGbhAHtF_LgXHZbmEUQ4XVYFLUyhMl0v/s1600-h/paper02.gif"><img style="margin: 0px auto 10px; display: block; text-align: center; cursor: pointer;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiR6sxtbud53hUn11NCG_4tMlgkfQzV-p4UmP_vRFxI-ocltM-l3mLKGnimRyKU8vX59YtBFRnc87PW0akMVByBRTBuY9XqeN3M74HKDGbhAHtF_LgXHZbmEUQ4XVYFLUyhMl0v/s320/paper02.gif" alt="" id="BLOGGER_PHOTO_ID_5128277410929383554" border="0" /></a><br /><div style="text-align: justify;">It's been a while, tons of things, but here we are. After a well deserved rest and my journey to the spectacular Cusco Peru Convention (which I will write a couple of things as soon as I get the pictures) it's time to continue this road. We left it talking about some of the structural properties of the paper, grammage, formation and thickness, and yet it's necessary to mention others that complete the structural framework of this noble material.<br /><br />So, we will take care now of Directionality, Double Face, Smoothness and Porosity, all affected in a direct way by the productive processes in paper making.<br /></div><br /><div style="text-align: justify;"> </div><div style="text-align: justify;"> </div><p style="margin-bottom: 0cm; text-align: justify; font-weight: bold;">Directionality</p><div style="text-align: justify;"> </div><br /><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiAaO8MyIGDDdzXKWPPHOWJd6ZB7nqnVyq4bv71c80sVUhbR30BPQ4s-7ai9GB2Ddvad_fmcyY0SJGkeYXAzcbp-w4DxyJ4_wecYRT-FHeSrRucZWfWB0Q-Js9z2f9nW99P8hDJ/s1600-h/hollander2.jpg"><img style="margin: 0px auto 10px; display: block; text-align: center; cursor: pointer;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiAaO8MyIGDDdzXKWPPHOWJd6ZB7nqnVyq4bv71c80sVUhbR30BPQ4s-7ai9GB2Ddvad_fmcyY0SJGkeYXAzcbp-w4DxyJ4_wecYRT-FHeSrRucZWfWB0Q-Js9z2f9nW99P8hDJ/s400/hollander2.jpg" alt="" id="BLOGGER_PHOTO_ID_5067662678896959778" border="0" /></a><br /><div style="text-align: justify;"> </div><p style="margin-bottom: 0cm; text-align: justify;">This is one of the main characteristics on papermaking. Due to the fact that pulp moves in a fitted direction in shaking, beating and production lines, the fibres get aligned in a Main Direction or Grain Direction (the flux one), affecting most of the mechanical properties of paper, such as Tensile Strength, fold elasticity, form and propagation of tears and many others. Also folding, marking and punching are done easily in this axial direction. It is so important for box making, packing and forming industries that it is indicated in cardboard packages; in case of rolls this direction is obvious.<br /></p><br /><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhYeAgasx5LU2661digJyPsXKl1XHx0K-9LQwxfc1NOqlj4EWMq261giB18SQ4Mpx6bhKc1zhcn5q0b6Fn-sRtmILhCSxD29YjTl70iT21jVagwh4Wnk2_aFJ8Kd4bOM401eHXz/s1600-h/HistoryOfPaper.gif"><img style="margin: 0px auto 10px; display: block; text-align: center; cursor: pointer;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhYeAgasx5LU2661digJyPsXKl1XHx0K-9LQwxfc1NOqlj4EWMq261giB18SQ4Mpx6bhKc1zhcn5q0b6Fn-sRtmILhCSxD29YjTl70iT21jVagwh4Wnk2_aFJ8Kd4bOM401eHXz/s200/HistoryOfPaper.gif" alt="" id="BLOGGER_PHOTO_ID_5128277904850622642" border="0" /></a><br /><div style="text-align: justify;"> </div><div style="text-align: justify;"> </div><p style="margin-bottom: 0cm; text-align: justify;">To determine the Grain Direction the easiest way is to observe the natural bending of the sheet in different directions, holding it in one of its edges, here an example with a square of bond printing sheet<br /></p><br /><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh1qVR_dZ-CppeUrYNm4mvRJg7rTaQA54CN9t28iYrezFhgVdspOI6rp1Om8wXnj-gzxCtOD-GSXCp59TZJXq6AMrgSPhGQS1kRf6pI2JohFKGgIfXk9vFfItXf7qlkVbsKAp2p/s1600-h/IMG_0002.JPG"><img style="cursor: pointer;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh1qVR_dZ-CppeUrYNm4mvRJg7rTaQA54CN9t28iYrezFhgVdspOI6rp1Om8wXnj-gzxCtOD-GSXCp59TZJXq6AMrgSPhGQS1kRf6pI2JohFKGgIfXk9vFfItXf7qlkVbsKAp2p/s320/IMG_0002.JPG" alt="" id="BLOGGER_PHOTO_ID_5128281190500604130" border="0" /></a><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhyb7P-PCkJSS4TVALJN-CD8KkQTVpcTqa7kkNjSLK8po4zhGYvSzCQYVYaMzIxQyyO5jBvGvFwUdyRK4qnLjjAB413tVg-uqeJVG2q5TGDZ0bhQUAij7ITIQITgMxge4I-DULL/s1600-h/IMG_0001.JPG"><img style="cursor: pointer;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhyb7P-PCkJSS4TVALJN-CD8KkQTVpcTqa7kkNjSLK8po4zhGYvSzCQYVYaMzIxQyyO5jBvGvFwUdyRK4qnLjjAB413tVg-uqeJVG2q5TGDZ0bhQUAij7ITIQITgMxge4I-DULL/s320/IMG_0001.JPG" alt="" id="BLOGGER_PHOTO_ID_5128280971457272018" border="0" /></a><br /><p style="margin-bottom: 0cm; text-align: justify;">the Grain Direction offers a resistance to bending greater than the Cross Direction.<br /></p><div style="text-align: justify;"> </div><div style="text-align: justify;"> </div><p style="margin-bottom: 0cm; text-align: justify;">Another way to know it is observing the curling of paper when hydrated, fibres expands greater in its axial direction than the cross one, producing an abnormal and oriented deformation of the sheet, as you can see in these old books victims of humidity:<br /></p><br /><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhNFShHxVxuPmQ-GKF99w1JERaGv5kiiBRZK4T2TTwdYKxAWfofB7U5fZxsTuGY20hC3PL2GRlA572noaXpZLzPNeUvM0_lfvFGCOd4K-a-i7rmkIL-JLSdUvSsknx-0E6Eqr_q/s1600-h/image002.jpg"><img style="margin: 0px auto 10px; display: block; text-align: center; cursor: pointer;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhNFShHxVxuPmQ-GKF99w1JERaGv5kiiBRZK4T2TTwdYKxAWfofB7U5fZxsTuGY20hC3PL2GRlA572noaXpZLzPNeUvM0_lfvFGCOd4K-a-i7rmkIL-JLSdUvSsknx-0E6Eqr_q/s320/image002.jpg" alt="" id="BLOGGER_PHOTO_ID_5128277711577094306" border="0" /></a><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgjqvDGIYD8bbJVuS7zZ2RzM8xxFhuA8fFLenLQQFedcvFcMMlRKt8b1vgvrHjRNIMy5a5TYQz0KlWB_DE2fU3HF7DRN1jarHyhnUR3KFyjbilx9G64xxlKaifOgTey33pC2tJ-/s1600-h/foldout.jpg"><img style="margin: 0px auto 10px; display: block; text-align: center; cursor: pointer;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgjqvDGIYD8bbJVuS7zZ2RzM8xxFhuA8fFLenLQQFedcvFcMMlRKt8b1vgvrHjRNIMy5a5TYQz0KlWB_DE2fU3HF7DRN1jarHyhnUR3KFyjbilx9G64xxlKaifOgTey33pC2tJ-/s320/foldout.jpg" alt="" id="BLOGGER_PHOTO_ID_5128277608497879186" border="0" /></a><br /><div style="text-align: justify;"> </div><div style="text-align: justify;"> </div><p style="margin-bottom: 0cm; text-align: justify;">Finally, other tests to obtain it are more destructive and includes the measurement of tensile strnght (greater in the MD) or the rupture line of cracks when bursting (paradoxically perpendicular to Grain Direction)<span onclick="dr4sdgryt(event)" style=""><u><b></b></u></span> </p>We will talk a little more of this when we faces the mechanical properties in next entries but, as an example, if we get a kraft sheet of of 90 (g/m2) paper that, as we saw before, is a chemically processed paper, which preserves the fibres almost undamaged, we could see that its tensile strength is 7.43 (kN/m) in MD and 3.81 (kN/m) in its Cross Direction. Similar differences can be seen in many other properties, as foldability, tear propagation and others we will see.<br /><br /><div style="text-align: justify;"> </div><p style="margin-bottom: 0cm; text-align: justify; font-weight: bold;">Double Face</p><div style="text-align: justify;"> </div><div style="text-align: justify;"> </div><div style="text-align: justify;"> </div><div style="text-align: justify;"> </div><p style="margin-bottom: 0cm; text-align: justify;">Also due to papermaking processes, the pulp is moved in its line of production through bands with metallic grids, which affects the concentration of elements in one surface and the opposite, more in contact with poles and rolls. It's possible to show a distribution of components along the z-axis (or thickness axis) of the sheet, been the main affected fine and fillers.<br /><br /><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEinQY_QW37fOm88oQPGVaYU7nQ-ilUNmiywjqMHD2dKIu9NsPv6e9ijIDhXsB0vx14GHUSQMZgfCqQ4hWaSDOAOzsDBi0-lK0JULtFk62bRFxewH-JyySVpzwnfxT9f7MH0IobK/s1600-h/Dside2.jpg"><img style="margin: 0px auto 10px; display: block; text-align: center; cursor: pointer;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEinQY_QW37fOm88oQPGVaYU7nQ-ilUNmiywjqMHD2dKIu9NsPv6e9ijIDhXsB0vx14GHUSQMZgfCqQ4hWaSDOAOzsDBi0-lK0JULtFk62bRFxewH-JyySVpzwnfxT9f7MH0IobK/s320/Dside2.jpg" alt="" id="BLOGGER_PHOTO_ID_5128279038721988802" border="0" /></a><br />The Grid side is called the Wire Side and the one in contact with poles the Felt Side. The first graph shows the ash concentration, which is normally used as a filler, and the second one the Resistance to filtration, greater in the presence of fine, meaning that paper absorbs less in the Felt Side than in the Wire Side, affecting inking and coating.<br /></p><br /><p style="margin-bottom: 0cm; text-align: justify;">To identify one side from the other is important to know that there are surface differences, the grid leaves marks (squares or diamonds), sometimes visible at counterlight, you can use light carbon pencils or markers also. In adittion, Felt Side normally shows a closer formation and greater softness and smoothness than Wire Side.<br /></p><br /><p style="margin-bottom: 0cm; text-align: justify;">Another method is to make a tear holding one side against a glass or a rigid surface, first in the MD and then changing to the CD (for example in a corner of the paper); when the Wire Side is up, the tear (specially on the curve area) shows a greater feathering; finally, if paper contains an abrasive filler, marking a line with a silver coin will live a darker mark on the Felt Side.<br /></p><br /><p style="margin-bottom: 0cm; text-align: justify;">Double Face affects directly in the best suited type of fold and their resistance, Felt Side is denser and then it resist more the valley folds (compression) than the mountain (expansion), among other characteristics.<br /></p><br /><p style="margin-bottom: 0cm; text-align: justify; font-weight: bold;">Smoothness</p><div style="text-align: justify;"> </div><div style="text-align: justify;"> </div><p style="margin-bottom: 0cm; text-align: justify;">Smoothness is a surface property and in general has a greater influence in the mechanical use of paper, writing and manipulating than for folding and forming, however, aesthetic effects are important and also the presence of coating to improve surfaces affects on folding. There are several methods to measure smoothness, as optical analysis with light, the use of microscopes and micrometers, the pass of air trough paper and glass, friction against metal or other paper or inking with roll are also used.<br /></p><br /><p style="margin-bottom: 0cm; text-align: justify; font-weight: bold;">Porosity </p><div style="text-align: justify;"> </div><div style="text-align: justify;"> </div><p style="margin-bottom: 0cm; text-align: justify;">Porosity is a vital factor in paper composition, one must consider that paper is 50% air, some of it is inside fibres, but most of it is in the pores between them and its components. The rate between pore volume and total is called porosity. But it is only measured in laboratories, tha value normally measured is air permeability, which is basically the flux of air that passes at pressure trough a sheet of paper, or its inverse, the resistance to the pass of air. These parameters are related, but very different, paper of same porosity but with different size and distribution of pores can have very different air permeabilities.<br /></p><br /><p style="margin-bottom: 0cm; text-align: justify;">Porosity is important for many reasons, as its effects on mechanical properties, like tensile strenght, or superficial, like appearance or printing, saturation or coating treatments, also for the usage of paper (tissues, towels, cigarettes, absorbent paper, filters or isolating paper).<br /></p><br /><p style="margin-bottom: 0cm; text-align: justify;">It is important to note finally that foldability and tensile strength diminishes with porosity and also the number of possible foldings and handling of paper for complex origami models, along with the poor marking of folds due to the lack of fibres and material (try a komatsu on a tissue towel); however, a too low porosity, a dense paper, can make also very difficult its handling.<br /></p><p style="margin-bottom: 0cm; text-align: justify;"><br /></p>peterselfhttp://www.blogger.com/profile/15778752823201555000noreply@blogger.com0tag:blogger.com,1999:blog-38839897.post-52454943275543954302007-08-26T17:52:00.000-07:002008-12-08T20:58:37.935-08:00Robert Lang's Rose<a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEguE7bWqzSlZwHLNBmzjgQLHsHZbX4dy_ZIkSVyJ0W4MtH1Aq3jklLjz5ILq2ITv7PNu5LLPRwhp1PtBwZ8SoEsxAo0g3B24eYrdOKT08u6FXBWB42c3nbUVEKYbwQi9BDpzUMj/s1600-h/IMG_0062.JPG"><img style="margin: 0px auto 10px; display: block; text-align: center; cursor: pointer;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEguE7bWqzSlZwHLNBmzjgQLHsHZbX4dy_ZIkSVyJ0W4MtH1Aq3jklLjz5ILq2ITv7PNu5LLPRwhp1PtBwZ8SoEsxAo0g3B24eYrdOKT08u6FXBWB42c3nbUVEKYbwQi9BDpzUMj/s320/IMG_0062.JPG" alt="" id="BLOGGER_PHOTO_ID_5103137040818229970" border="0" /></a><br /><div style="text-align: justify;"><br /><br />Robert Lang is known by the deep mathematical basis underlying on his models. A couple of years ago he published on his <span style="font-weight: bold;font-size:130%;" ><a href="http://www.langorigami.com/">site</a></span> (an amazing site, I have to say) a beautiful rose of many petals, along with its Crease Pattern; apparently he liked the roses made by Kawasaki and others but his desire was to obtain one with more petals and spread in an opened rose (he certainly accomplished it). Almost immediatly a thread was opened on the British Origami Forum, where many get into the solving of its CP.<br /><a href="http://www.thekhans.me.uk/forum/viewtopic.php?t=1227&postdays=0&postorder=asc&highlight=lang+rose&start=0">http://www.thekhans.me.uk/forum/viewtopic.php?t=1227&postdays=0&postorder=asc&highlight=lang+rose&start=0</a><br />To follow its eight pages becomes a fascinating experience, about a group of people helping each others and contributing to achieve a common artistic goal. I was so shocked that I've decided to try it and solve for the first time on my life a crease pattern (though almost all the work was already done ha!).<br /><br /><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgGdes4Mna4qrskCby5_fU6D-NMMa8aIuG3b-FfsaiC3JYSOGucARKl6BmNP-ttu5FgJlBFQubLlVl6cuGzQPX1-724xCxDKugs31ngjuHShTNXB_9AwshbS1EtdZ5Nn4Gey3im/s1600-h/rosecp.jpg"><img style="margin: 0px auto 10px; display: block; text-align: center; cursor: pointer;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgGdes4Mna4qrskCby5_fU6D-NMMa8aIuG3b-FfsaiC3JYSOGucARKl6BmNP-ttu5FgJlBFQubLlVl6cuGzQPX1-724xCxDKugs31ngjuHShTNXB_9AwshbS1EtdZ5Nn4Gey3im/s320/rosecp.jpg" alt="" id="BLOGGER_PHOTO_ID_5103138617071227634" border="0" /></a><br /><br />If the CP is observed, one could think that the choice on the proportions on its horizontal creases is a little complicate, but understanding how Lang's work is done, you realize that behind them is certainly a deep study on the proportions desired by the author to the rose's petals, which reduces their size in the way to the center of the flower. In the same way, vertical folds, separated each one by 1/11, allows it to obtain a pentagonal base, as we will see further. However, to obtain these folds or lines without using a ruler and a calculator was strongly difficult; Daydreamer, on that forum's trhead, used the Reference Finder Software (made by the same Robert Lang) to obtain a folding sequence for the seventh line, and a year after another participant, Silent Winter, showed an incredible method to get all the rest lines from this seventh one.<br /><br />Even when Daydreamer's sequence is very exact, I wasn't sure about its intuitiveness. So I projected a line to the opposite corner of the end of that line and saw that that angle was almost exactly 20 degrees, and that the distance between the bottom edge to it (29/80, 0.3625) was almost the same that from the right edge to the fourth vertical line (4/11, 0.3636); in a way that could make possible to obtain both folds marking the 45º diagonal from that endline matching the lateral edge to the line. To get a 20º fold is not simple, but in a <span style="text-decoration: underline;">very interesting site</span><a href="http://www.merrimack.edu/%7Ethull/omfiles/geoconst.html"></a> I learned to tri sect any angle and I already knew a way to fold a 60º fold.<br /><br /><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjlN9reST2UEZHvraR4VyYpVJxsVbhMOGYgfz6t4sbvzDtUm-4hwND6wRCGKCq0EtDh7MHzT4Yf_53tJRyjacMkKSZRynNI6G7BbrKBO0hhM1AIItwb3SP8K-uIxP6AzwnNnEmE/s1600-h/langcp1.jpg"><img style="margin: 0px auto 10px; display: block; text-align: center; cursor: pointer;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjlN9reST2UEZHvraR4VyYpVJxsVbhMOGYgfz6t4sbvzDtUm-4hwND6wRCGKCq0EtDh7MHzT4Yf_53tJRyjacMkKSZRynNI6G7BbrKBO0hhM1AIItwb3SP8K-uIxP6AzwnNnEmE/s320/langcp1.jpg" alt="" id="BLOGGER_PHOTO_ID_5103138917718938370" border="0" /></a><br /><br />The second stage on this exercise was to fold collapse the base, which become more complicated; at the end, the best was make the reverse folds from left to right, column by column, opening a little the accordion resulting structure each time. Very useful was to know that for Lang's CPs only the bold marks are the ones that will be really folded on the final base and that yellow ones means valley and black ones mount :) (I like that, an author that doesn want to keep secrets to the rest). Doing so the base toke form. Note that when collapse, base already takes a concave form in its bottom pentagonal level, resulting probably from the careful selection of its proportions in the design process.<br /><br /><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj9axu-iqaGqQ5hFDOx8oayJZjJHZAsVtPZ4OVM8o5DZwfpI0B0i7__HeB-bVK-0yegiU_LFf0HWNkVlR4Z-jTWx1RSLkfFkCgQ0Dew4S3-8zXV8_lWg7m-_cBW7J08qWXkdbm5/s1600-h/rosalang0001.JPG"><img style="margin: 0px auto 10px; text-align: left; cursor: pointer;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj9axu-iqaGqQ5hFDOx8oayJZjJHZAsVtPZ4OVM8o5DZwfpI0B0i7__HeB-bVK-0yegiU_LFf0HWNkVlR4Z-jTWx1RSLkfFkCgQ0Dew4S3-8zXV8_lWg7m-_cBW7J08qWXkdbm5/s200/rosalang0001.JPG" alt="" id="BLOGGER_PHOTO_ID_5103140038705402658" border="0" /></a> <a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgkus1px_9mwPRDmCYpCqLPKtJcxHd0uN32lU3529Sg-rknWPXaxOMNOI6WuK2G_mXxQDZqgvqwcj8y1G81BaJ3wPrjZ6h7pUtMgeNEPuzQledoV5UZ2CFztL_NMfv1D2hdCWBk/s1600-h/rosalang0008.JPG"><img style="margin: 0px auto 10px; text-align: left; cursor: pointer;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgkus1px_9mwPRDmCYpCqLPKtJcxHd0uN32lU3529Sg-rknWPXaxOMNOI6WuK2G_mXxQDZqgvqwcj8y1G81BaJ3wPrjZ6h7pUtMgeNEPuzQledoV5UZ2CFztL_NMfv1D2hdCWBk/s200/rosalang0008.JPG" alt="" id="BLOGGER_PHOTO_ID_5103140231978930994" border="0" /></a> <a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgLVjib3uZ2VsP_8M1HxdHoKWfOeAHPFkqUvcpTv7bswf-kNKoZu_V0o2Hk-NjZiRzah-sTARPbneaRaQSaoeBrAUA7bG_r6qhR_j0z4dIFGcJHDOcnVitbdxuMxJ00xTYOfizM/s1600-h/rosalang0011.JPG"><img style="margin: 0px auto 10px; text-align: left; cursor: pointer;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgLVjib3uZ2VsP_8M1HxdHoKWfOeAHPFkqUvcpTv7bswf-kNKoZu_V0o2Hk-NjZiRzah-sTARPbneaRaQSaoeBrAUA7bG_r6qhR_j0z4dIFGcJHDOcnVitbdxuMxJ00xTYOfizM/s200/rosalang0011.JPG" alt="" id="BLOGGER_PHOTO_ID_5103140463907164994" border="0" /></a><br /><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhJxzVHuX7620jph-10XNoTqmx9RUmCwtzxr6b6HWirsLQt2T9vZm_QJLA3ooJ1Kko582R2rukmjz6K5sJn69g1dE385QZcYGlb5oBz-VfIBXmcC68DDEh6YBnjDpN2NEVDudzn/s1600-h/rosalang0014.JPG"><img style="margin: 0px auto 10px; text-align: left; cursor: pointer;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhJxzVHuX7620jph-10XNoTqmx9RUmCwtzxr6b6HWirsLQt2T9vZm_QJLA3ooJ1Kko582R2rukmjz6K5sJn69g1dE385QZcYGlb5oBz-VfIBXmcC68DDEh6YBnjDpN2NEVDudzn/s200/rosalang0014.JPG" alt="" id="BLOGGER_PHOTO_ID_5103140743080039250" border="0" /></a> <a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEioEHi3m2gS_dCtYFoTPSWnRSogcYnIAdVbAs18zMxafVXRxGl16oiUIgoTPQnnbXxo4I09V9ffob3UT0uyXMJ0a0UGLRdtYtoWj062ubZrJhp0Sq59EhuhN0sQ-KNOnAy0ywoP/s1600-h/rosalang0016.JPG"><img style="margin: 0px auto 10px; text-align: left; cursor: pointer;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEioEHi3m2gS_dCtYFoTPSWnRSogcYnIAdVbAs18zMxafVXRxGl16oiUIgoTPQnnbXxo4I09V9ffob3UT0uyXMJ0a0UGLRdtYtoWj062ubZrJhp0Sq59EhuhN0sQ-KNOnAy0ywoP/s200/rosalang0016.JPG" alt="" id="BLOGGER_PHOTO_ID_5103140923468665698" border="0" /></a> <a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhBuOW_GVXC5OByNtGXz64wA2kzOTw-SOgzTqhLd2zNxXH_bh-3uUKenQeSgTE0Gozo2WK7tjyEZad3Cd0s_-ZoL7XBGcVkNQmhXdvcyZy_Kbe3awQTCcT-wFL8e6pzxYyS548z/s1600-h/rosalang0021.JPG"><img style="margin: 0px auto 10px; text-align: left; cursor: pointer;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhBuOW_GVXC5OByNtGXz64wA2kzOTw-SOgzTqhLd2zNxXH_bh-3uUKenQeSgTE0Gozo2WK7tjyEZad3Cd0s_-ZoL7XBGcVkNQmhXdvcyZy_Kbe3awQTCcT-wFL8e6pzxYyS548z/s200/rosalang0021.JPG" alt="" id="BLOGGER_PHOTO_ID_5103141056612651890" border="0" /></a><br /><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiqzQw3P1hJv4pfmDYLnLDdvyOFMje2z2sROm9XG68HXHVJQvlQwX-_QTdUjDIlCwRkMDtFIohw3PZZWWEzQHc22mg39dUkSbG5EwnOdglyhGNq7Wk1WmS1C_L9Bv9URIX9sSCD/s1600-h/rosalangII0004.JPG"><img style="margin: 0px auto 10px; display: block; text-align: center; cursor: pointer;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiqzQw3P1hJv4pfmDYLnLDdvyOFMje2z2sROm9XG68HXHVJQvlQwX-_QTdUjDIlCwRkMDtFIohw3PZZWWEzQHc22mg39dUkSbG5EwnOdglyhGNq7Wk1WmS1C_L9Bv9URIX9sSCD/s200/rosalangII0004.JPG" alt="" id="BLOGGER_PHOTO_ID_5103141799641994114" border="0" /></a><br /><br />And finally the hardest part, trying to shape and form the petals from its pointy layers that the base gave to us. First twisting the levels, using the inner layers resulted from the reverse folds, distributing the points in different angles, like a sun rays array. I've realized the best was go from bottom level to highest, from the largest petals to the small ones in the center of the flower. Curve the large petals down, lifting their bases a little and finally twisting the small ones in a tube-like around the center. I've done it several times and it is really hard to get a satisfactory result, it's a very fine figure and demands a high level on your folding skills. Is evident that a better result is obtained using fine and thin paper and probably also wet folding with Metyll cellulose.<br /><br /><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhk53A7lF9FrMaVf4hwe3tSCX7KsNwO9p3C3smHaxU8o6Betq33oHKaHx1RRgfZ89Y31PG2QyfhSvcblMBYqYND71WAJTp9FniQJMGo0kPdf-kVxhXRHkUCK-kNkxfZGG1lTzn7/s1600-h/rosalang0022.JPG"><img style="margin: 0px auto 10px; display: block; text-align: center; cursor: pointer;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhk53A7lF9FrMaVf4hwe3tSCX7KsNwO9p3C3smHaxU8o6Betq33oHKaHx1RRgfZ89Y31PG2QyfhSvcblMBYqYND71WAJTp9FniQJMGo0kPdf-kVxhXRHkUCK-kNkxfZGG1lTzn7/s200/rosalang0022.JPG" alt="" id="BLOGGER_PHOTO_ID_5103141971440685970" border="0" /></a><br /><br /><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhisDVHYokQSc01sibWGG7LgQ5yIuYDBhgh7VTg1cQrypjshljzUWWXqLaB5r3-AF60kYjY4ndjwX0AMEvpPGvwqSgALIVlivLlMhNXFIIOIV11n9VYokHDLKaxl_ShzmK0akWy/s1600-h/rosalang0027.JPG"><img style="margin: 0px auto 10px; display: block; text-align: center; cursor: pointer;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhisDVHYokQSc01sibWGG7LgQ5yIuYDBhgh7VTg1cQrypjshljzUWWXqLaB5r3-AF60kYjY4ndjwX0AMEvpPGvwqSgALIVlivLlMhNXFIIOIV11n9VYokHDLKaxl_ShzmK0akWy/s200/rosalang0027.JPG" alt="" id="BLOGGER_PHOTO_ID_5103142418117284770" border="0" /></a><br /><br />I've gathered all the info I could, plus some pictures, and made a pdf document, which I offer to everyone that could want it. It was a fascinating an amazing experience to solve this CP and I really appreciate Mister Robert Lang for read it and allow me to share it, even when my resulting flowers are still very ugly. All I can say is that Mister Lang is a MASTER. His diagram for the rose exists on 12th JOAS Convention Book and the las Origami USA Convention Book, which I hope I'll get as soon as possible, to follow the path drawn by him.<br /><br />Many regards to everybody.<br /><br />Zip pdf file: <a href="http://base.googlehosted.com/base_media?q=hand-3513283824093915217&size=8">rosalang2.pdf.zip</a><br /></div>peterselfhttp://www.blogger.com/profile/15778752823201555000noreply@blogger.com0tag:blogger.com,1999:blog-38839897.post-36738410809727555062007-06-28T08:23:00.000-07:002008-12-08T20:58:38.024-08:00The Paper (part III)<bk><br /><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhTEHp2XDr-E6WOz6yLN-sPms1Ic_y9SKl8qK2YiQNVXkZkoiUahHSofXGZ94rLCFher87uueLPgMnCGsGKhfQiavanHCXWUJXJifIKbWqTj-F2e4idjkkQor7q5eBdexgiJ7Zv/s1600-h/Prop.jpg"><img style="margin: 0pt 10px 10px 0pt; float: left; cursor: pointer;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhTEHp2XDr-E6WOz6yLN-sPms1Ic_y9SKl8qK2YiQNVXkZkoiUahHSofXGZ94rLCFher87uueLPgMnCGsGKhfQiavanHCXWUJXJifIKbWqTj-F2e4idjkkQor7q5eBdexgiJ7Zv/s320/Prop.jpg" alt="" id="BLOGGER_PHOTO_ID_5081537321383740706" border="0" /></a><br /><br /><span lang="ES-TRAD"><br /><br /></span></bk><div style="text-align: justify;"><bk><span lang="ES-TRAD">It is curious how an investigation brings things up. As you are reading new sources and getting some info, a book falls into your hands refuting facts that you considered for sure, clear and concrete. This happened to me with </span></bk><span lang="ES-TRAD"><a href="http://www.tappi.org/s_tappi/doc_bookstore.asp?CID=9042&DID=520970">“Properties of Paper: An Introduction”</a>, published by TAPPI (Technology Association for Pulp and Paper Industry), from authors James C. Abott and Stanley</span> Trosset; a fantastic book, even when it is more oriented to industrial papermaking on USA, leaving behind artistic uses and handmade paper.<br /></div><bk><span lang="ES-TRAD"><br /></span></bk><div style="text-align: justify;"><bk><span lang="ES-TRAD">So much new information, incomplete matters, that I've been forced to speak a little more about nature of paper and its making.</span></bk><br /><br />We already said that main source for cellulose is treewood. Also saw that together with cellulose other elements coexists in plant's cells, like Hemilcellulose and Lignin. However, reading this book I've learned that Lignin works as a binding agent between fibers and that its concentration grows in the outer layers of the cell, contrary to what I said in the previous entry. In fact, it is necessary to remove lignin to free the fibers in an homogeneous solution, since it concentrates on the outer walls of the fiber isolating it from others, reducing the number of possible contact points between them (which are what generates the "bond" characteristic of paper). Lignin has a very complex and variable chemical structure, it is insoluble in water but can be disolved on certain acids solutions.<br /><br />As a tip to whom desires to cook their own pulp, an agent that disolves lignin (not very efficiently but it works) is popular caustic soda in water. Its efficiency improves in pressence of high temperatures and pressure (but to use a pressure cooker with caustic soda is extremely dangerous!). Do not worry about cellulose, its chemical binding is strong enough to all acids except a few number of strong ones.<br /></div><p style="text-align: justify;" class="MsoNormal">The other component, Hemilcellulose, is a polymer similar to cellulose but with slightly different molecular arrangements; is important in paper since it stimulates creation of fibre to fibre contacts and in its water absorption hability, however, it doesn't resist the lignin elimination process.</p><div style="text-align: justify;"> </div><br /><br /><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh_sk5JNF_1fiOZxQV_8BBWW5I960naSxMiQZo5qL1mTDLiJMc4L893LdKirwX_MWlsZjwUojIIZFmjKK6LLRt37i9OSebc6efiElMn_xMJ-d2hgzteXNkoDt4m8pqKd6B_JXkB/s1600-h/fibra5.jpg"><img style="cursor: pointer;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh_sk5JNF_1fiOZxQV_8BBWW5I960naSxMiQZo5qL1mTDLiJMc4L893LdKirwX_MWlsZjwUojIIZFmjKK6LLRt37i9OSebc6efiElMn_xMJ-d2hgzteXNkoDt4m8pqKd6B_JXkB/s320/fibra5.jpg" alt="" id="BLOGGER_PHOTO_ID_5081537686455960882" border="0" /></a><br /><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiH49jw-SaBhqWtH8ocX4WZzfMQ1DN_itGcS1AqXjMraszHkQ1WNC0-gQC5qYhVmdnsts5DSkJIGQPildgBK5VF4oBIsTBWCCkb2AAhZHT-AFsqdgJptN_gYjbyZ-45fv1nsSH1/s1600-h/fibra6.jpg"><img style="cursor: pointer;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiH49jw-SaBhqWtH8ocX4WZzfMQ1DN_itGcS1AqXjMraszHkQ1WNC0-gQC5qYhVmdnsts5DSkJIGQPildgBK5VF4oBIsTBWCCkb2AAhZHT-AFsqdgJptN_gYjbyZ-45fv1nsSH1/s320/fibra6.jpg" alt="" id="BLOGGER_PHOTO_ID_5081538090182886722" border="0" /></a><br /><br /><div style="text-align: justify;">Then, if you want to make housemade paper, forget about tree wood and look for a plant with low concentrations of Lignin and fibres not too longs (that leaves out cotton), because that will result on a too resistent paper, like cloth, hard to fold (don't forget that the mark of a fold is given by the fracture of the fibre).<br /><br />Also because the fact that papermaking from tree wood has become an extremely contaminant process just for the use of chemicals in the removal of lignin, and it is in that way because the low costs induced by wood and the chemical usage. Among the ways to produce cellulose there is the pure mechanical (as stone groundwood and Refiner Mechanical Pulp), constituting 10-15% of world's paper production, their disadvantages are the difficulties to obtain an uniform and homogeneous pulp, the breaking and damaging of fibres and paper's short lifetime, reasons because it is used mainly for newspapers, catalogs and light publications.<br /><br />Lignin gives paper and pulp a characteristic brown color. It's important to understand that is impossible to remove all lignin from pulp, so all pulps coming from tree wood have that characteristic before the bleaching process; kraft paper has that colour only to the absence of the bleaching stage and it is a pure chemical pulp process.<br /><br />As we talk about pollution, the whole process of papermaking is extremely water and energy consuming and, even when enormous advances has been developed in the reusage of water and chemicals to reduce that fact, it is far away from being reasonable for nature., all that leads us to the need of minimize the use of paper in our regular life and to respect and love the piece of paper we hold in hands, because the cost and sacrifice that it meant.<br /></div><br /><p style="text-align: justify;" class="MsoNormal"><span lang="ES-TRAD"><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjxC5nC3rMa2ZzEVYWQst5CXRauum293tE7L3k4fgrfKc2Q-t2GLxRH5LZn3rOUMnc9EqdMqRSi0quQTzpsLe6D3qWJU0L9irRuXOeYCUIu-DQJ7pecVsy1Cbt5i11DUZcJLNjV/s1600-h/22255841.jpg"><img style="margin: 0px auto 10px; display: block; text-align: center; cursor: pointer;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjxC5nC3rMa2ZzEVYWQst5CXRauum293tE7L3k4fgrfKc2Q-t2GLxRH5LZn3rOUMnc9EqdMqRSi0quQTzpsLe6D3qWJU0L9irRuXOeYCUIu-DQJ7pecVsy1Cbt5i11DUZcJLNjV/s200/22255841.jpg" alt="" id="BLOGGER_PHOTO_ID_5081538545449420130" border="0" /></a><br /><br /><span style="font-size:130%;"><span style="font-weight: bold;">Properties of Paper</span></span><o:p></o:p></span></p><p style="text-align: justify;" class="MsoNormal"><span lang="ES-TRAD"><o:p></o:p>At last I think we can enter the land of the physical and structural differences between the different types of paper. The Characteristics of paper are Structural and Mechanicals, in the next posts I will talk about each one of them.<br /></span></p>Structural Properties are:<br /><br />Grammage<br />Formation<br />Thickness<br />Directionality<br />Two-sidedness<br />Smoothness<br />Porosity<br /><br /><span style="font-weight: bold;">Grammage</span><br /><br />In industrial terms, weight of paper is measured by fixed packages of a given number of sheets and standard sizes for them, which makes thorny and difficult to make any comparative analysis between different kinds of paper; for that reason, the International System of Measurements (SI) established the mass content in a single sheet of known area, or grammage (grams per square meter, g/m2) as the mass - characterizing value for paper.<br /><br />Typical values of grammage for paper are:<br /><br /><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjkQNHA-1HtUApTFeGg_aPjjNnFfDf5mW2sBe8UlCDpVeCZlFvXTkHAAZLE5eKf1nVO7cnIRCszWDNW33SkIEtald3X-xQmk0d3CFphww_0Tv1bpVbL2tRHT9eMZX1cLHzdQirmyA/s1600-h/tabla2.jpg"><img style="margin: 0px auto 10px; display: block; text-align: center; cursor: pointer;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjkQNHA-1HtUApTFeGg_aPjjNnFfDf5mW2sBe8UlCDpVeCZlFvXTkHAAZLE5eKf1nVO7cnIRCszWDNW33SkIEtald3X-xQmk0d3CFphww_0Tv1bpVbL2tRHT9eMZX1cLHzdQirmyA/s400/tabla2.jpg" alt="" id="BLOGGER_PHOTO_ID_5081624388960765378" border="0" /></a><br /><br /><div style="text-align: justify;"><span style="font-weight: bold;">Formation</span><br /><br />Formation on paper refers to uniformity in the distribution of the fibres and other components along and wide the sheet of paper; it is in the pulp sheet making stage when this is controlled.<br /><br /><span style="font-weight: bold;">Thickness</span><br /><br />Thickness (or Caliper) is a vital parameter but commonly undervalued by designers and folders, who normally looks for the thinness possible piece of paper to its much complex models, specially for the box-pleated ones. There is a tendency to believe that thickness of paper is negligible and it will not affect the geometry and symmetry of the figure, nothing further from reality, specially when folding lots of layers together.<br /><br />It is obvious that the maximum number of layers to be folded together is related with the thickness of the paper. However, there is a physical limit that show us to understand the real importance of it when folding any sheet. To illustrate it let's exaggerate the thicknes and see how many layers creates long and wide concentric circumferences around the fold; the long the number of them, greater the amount of paper they take away from the model.<br /></div><br /><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjOlalXhj92n-NSHxzvAQXRFKViQoy3MG3mNkezpPCNbEZqUW_PaTR0vB2zXwDge3xKjO0c1sm4QvbkVDKf3Ig5GgG1hjqYqUqcqP8_pJDTHPLR4MWgWovU-MsCKaGqrFuj9A3r/s1600-h/diagram.jpg"><img style="margin: 0px auto 10px; display: block; text-align: center; cursor: pointer;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjOlalXhj92n-NSHxzvAQXRFKViQoy3MG3mNkezpPCNbEZqUW_PaTR0vB2zXwDge3xKjO0c1sm4QvbkVDKf3Ig5GgG1hjqYqUqcqP8_pJDTHPLR4MWgWovU-MsCKaGqrFuj9A3r/s320/diagram.jpg" alt="" id="BLOGGER_PHOTO_ID_5081539846824510866" border="0" /></a><br /><br /><div style="text-align: justify;">The calculations of these diameters were done by an american mathematics student (now teacher) called <span lang="ES-TRAD"><a href="http://pomonahistorical.org/12times.htm">Britney Gallivan</a> on Dec 2001, getting a numeric series and a formula to obtain the needed long L for folding a piece of paper of thickness t a consecutive number n of times:</span><br /></div><p style="text-align: justify;" class="MsoNormal"><span lang="ES-TRAD"><o:p> </o:p></span></p><div> </div><br /><br /><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj7kRK1bPqEQzMlRI-x4BMK9bgtCCCz5-BS2K9Te9UljLPflwG8gK9EfF-Gi175fyBGT6_3-66XOB_OFr5wsd-2CGixO8t2aKPotStyr9M8gR6NG7cqe1ap9TfNUqxOYDqlWTEO/s1600-h/equation4.gif"><img style="margin: 0px auto 10px; display: block; text-align: center; cursor: pointer;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj7kRK1bPqEQzMlRI-x4BMK9bgtCCCz5-BS2K9Te9UljLPflwG8gK9EfF-Gi175fyBGT6_3-66XOB_OFr5wsd-2CGixO8t2aKPotStyr9M8gR6NG7cqe1ap9TfNUqxOYDqlWTEO/s320/equation4.gif" alt="" id="BLOGGER_PHOTO_ID_5081540108817515938" border="0" /></a><br /><div style="text-align: justify;">For example, regular thickness of a bond printer paper is 0.1 mm, let's assume we want to fold it 10 times over itself, we will lose exactly 55.036036 meters! of paper only in the foldings...<br /><br />She achieved a world record folding a sheet over itself a number of 12 times (for curiouses our bond paper should be 880 meters!!, nearly a kilometre!).<br /><br />Regular values for thickness are given in the next table:<br /></div><br /><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEimSbSrJR6BfsRvKgkcIw7iSJSoi5W_Qbz0FDHyOPzYSZKP1bnZtFhmF1V6IEXVQ5VWqYObU_BATkRw8MJTilq2l_PpgjWxHwPLbWKWoMsrm3J9pGtYr9T1-4aXwzjce6_z45dR/s1600-h/espesor2.jpg"><img style="margin: 0px auto 10px; display: block; text-align: center; cursor: pointer;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEimSbSrJR6BfsRvKgkcIw7iSJSoi5W_Qbz0FDHyOPzYSZKP1bnZtFhmF1V6IEXVQ5VWqYObU_BATkRw8MJTilq2l_PpgjWxHwPLbWKWoMsrm3J9pGtYr9T1-4aXwzjce6_z45dR/s320/espesor2.jpg" alt="" id="BLOGGER_PHOTO_ID_5081540452414899634" border="0" /></a><br /><div style="text-align: justify;">An important parameter results from diving grammage by the thickness of a paper, called apparent density, thinner papers but with high grammages can be more resistant to tearing; generally is in compression stage when this characteristic is achieved. We will see this when mechanical properties are reviewed.<br /><br /></div>peterselfhttp://www.blogger.com/profile/15778752823201555000noreply@blogger.com2tag:blogger.com,1999:blog-38839897.post-91955900033465944132007-06-20T09:41:00.000-07:002008-12-08T20:58:38.069-08:00A flying Condor (my first design)<bk><br /></bk><div style="text-align: justify;"><bk><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiRWUjbN9EkL598YpJmGQB6Zhs0fS3l3C1aMI_RccuJaMqK1dTqYmWTgVc7FoB5rwgvi3wMQNbCDK7PTnNJcSviCXFlvsGyzjddUm4-tvcOnJEGuo1QuJaWmpkNWJqSHZcYrcWU/s1600-h/condor+065.jpg"><img style="margin: 0px auto 10px; display: block; text-align: center; cursor: pointer;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiRWUjbN9EkL598YpJmGQB6Zhs0fS3l3C1aMI_RccuJaMqK1dTqYmWTgVc7FoB5rwgvi3wMQNbCDK7PTnNJcSviCXFlvsGyzjddUm4-tvcOnJEGuo1QuJaWmpkNWJqSHZcYrcWU/s320/condor+065.jpg" alt="" id="BLOGGER_PHOTO_ID_5078177069499211490" border="0" /></a>Hi,</bk><br /><bk>I've decided to give me (and you) a small break while preparing the next entry about paper and folding (which is almost ready), and share the amazing experience of my first designed model. Last February, during Roman Diaz workshop on Purranque, I've came to the idea of designing this bird, because is a magnificient and gorgeus animal and also because there is not many models flying around about it.</bk><br /><bk></bk></div><br /><div style="text-align: justify;">Loyal to that workshop, I enlisted the main objectives I wished to accomplish in an order of priorities:<br /></div><br /><ol><li>it should be a flying condor, with its wings opened in glide.</li><li>have a color change to provide it with a white neck, characteristic of it.</li><li>with its legs <span onclick="dr4sdgryt2(event)" style="cursor: pointer;">withdraw in flying position (I love birds with their legs, they give the model a felling of completitude, even if the figure is not completely closed)</span></li><li><span onclick="dr4sdgryt2(event)" style="cursor: pointer;">With its long feathers on the top of the wings, also characteristics of its specie.</span></li><li><span onclick="dr4sdgryt2(event)" style="cursor: pointer;">should be an ellegant and have an easy look, not too carrion-like.</span></li></ol><span onclick="dr4sdgryt2(event)" style="cursor: pointer;"><br /></span><div style="text-align: justify;"><span onclick="dr4sdgryt2(event)" style="cursor: pointer;">the first two conditions were out of the question, so I felt into them. First one influenced strongly on the base choice; if I wish long extended wings, I should use preferently the main diagonal of the square and the other two corners for the head and tail. Soon I got one good answer from the figures I've folded until now, Anibal Voyer's pegasus base:</span><br /><span onclick="dr4sdgryt2(event)" style="cursor: pointer;"></span></div><div style="text-align: justify;"><br /><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjyZ__UcVcVBhqW0nO3hrXgb9R6rKf8Ubrh_Vhm2yJ-ech9cH6DYkIdrDSR9bW2F2A5tO5L2voMqZnnhZKCRcek6Q3sZluvBEgrFk3-NP0TqFeJwwzcWkQqKEevjTPLoo9R04RJ/s1600-h/PEGASO1.jpg"><img style="margin: 0px auto 10px; display: block; text-align: center; cursor: pointer;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjyZ__UcVcVBhqW0nO3hrXgb9R6rKf8Ubrh_Vhm2yJ-ech9cH6DYkIdrDSR9bW2F2A5tO5L2voMqZnnhZKCRcek6Q3sZluvBEgrFk3-NP0TqFeJwwzcWkQqKEevjTPLoo9R04RJ/s400/PEGASO1.jpg" alt="" id="BLOGGER_PHOTO_ID_5078052034411290258" border="0" /></a><br /><br /><div style="text-align: justify;">If I folded AB and AC with valleys not only I'll get a couple of long wings and enough paper for head and tail, but also being slightly inclined folds I'll obtain a 3D curve bending the wing down on flight.<br /></div><br /><div style="text-align: justify;">Then there was the head problem and its famous color change, as I had to reduced the top triangle to the center of the model, since Condor's heads are much smaller than their wings, I had to hide paper in wing's frontal edge, which nevertheless gave them a thick axis to enforce their shape and whole forming and posture. Hidding three layers resulted on a small white triangle in the center of the model. But when I folded front and closed that triangle I couldn't find any way to produce the color change to create the white neck without sacrificing the usage of the top corner for the beak or getting a too wide neck to the edges of the wings. After many weeks and models folded, finally I founded a trick and a solution<br /></div><br /><br /><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjPVUS7qbFAGxsxYS1lHRhBoMRrmDpovK_DAitlBB1C4PZ54GljF5o4D6lw1SETlsLrnqMO6NFIyik-9N9iSg_4QPSZTXEkTyUgvCcwZE1zCH3KJuFTkn5n7IKpp5x0_TDWThCQ/s1600-h/IMG_0002.JPG"><img style="margin: 0pt 10px 10px 0pt; cursor: pointer;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjPVUS7qbFAGxsxYS1lHRhBoMRrmDpovK_DAitlBB1C4PZ54GljF5o4D6lw1SETlsLrnqMO6NFIyik-9N9iSg_4QPSZTXEkTyUgvCcwZE1zCH3KJuFTkn5n7IKpp5x0_TDWThCQ/s200/IMG_0002.JPG" alt="" id="BLOGGER_PHOTO_ID_5078184800440344386" border="0" /></a><br /><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh5qs0C-xBCzVaOF9pM6uGSs8kklrh9MxEqntNtTcj6QChe2u5282JKsh0xIHJQUOO1M61nyzDco7UUuSK1dm0FMDRTusNUDiB37TO6_YAngoTAUhRM47PNUnfM1jdeaUN6p0tG/s1600-h/IMG_0003.JPG"><img style="margin: 0pt 10px 10px 0pt; cursor: pointer;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh5qs0C-xBCzVaOF9pM6uGSs8kklrh9MxEqntNtTcj6QChe2u5282JKsh0xIHJQUOO1M61nyzDco7UUuSK1dm0FMDRTusNUDiB37TO6_YAngoTAUhRM47PNUnfM1jdeaUN6p0tG/s200/IMG_0003.JPG" alt="" id="BLOGGER_PHOTO_ID_5078185101088055122" border="0" /></a><br /><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi0qmFadJMjdKSMqYqezh-NgjxMQHEP464wrzlW260MKxVhc05R7Vyn5Ic_cDY214J13s2gJmWY-jrHYPUSrTO71IX_-bkF-oyjxrhHk_IHqnQItk86J25zQBHMVNT4uxR6mIZw/s1600-h/condor0012.JPG"><img style="margin: 0pt 10px 10px 0pt; cursor: pointer;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi0qmFadJMjdKSMqYqezh-NgjxMQHEP464wrzlW260MKxVhc05R7Vyn5Ic_cDY214J13s2gJmWY-jrHYPUSrTO71IX_-bkF-oyjxrhHk_IHqnQItk86J25zQBHMVNT4uxR6mIZw/s200/condor0012.JPG" alt="" id="BLOGGER_PHOTO_ID_5078186153355042658" border="0" /></a><br /><br /><div style="text-align: justify;">I passed into the wings and their finger like feathers problems, box pleating fingers didn't help me, because they produced long layered bands along the wings. I was again lost until I saw <a href="http://dosisdiaria.blogspot.com/">Román Díaz's Kingfisher</a>, which probed me that best solutions often are the simplest, with feathers suggested by simple marking them, giving me this result:<br /></div><br /><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg37QNVrAFMcWJrwu9nd5EqlcR4xN2ZSlK96XyBc8d648f26TvHAOlXHCTLsYkohVaY3vSIaaCO3CVr1pxB22JOTfvAgenSWYaNPSt91pInydqWsz_Yf3-78exJ3xW02BcM7LOC/s1600-h/condor0010.JPG"><img style="margin: 0px auto 10px; display: block; text-align: center; cursor: pointer;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg37QNVrAFMcWJrwu9nd5EqlcR4xN2ZSlK96XyBc8d648f26TvHAOlXHCTLsYkohVaY3vSIaaCO3CVr1pxB22JOTfvAgenSWYaNPSt91pInydqWsz_Yf3-78exJ3xW02BcM7LOC/s320/condor0010.JPG" alt="" id="BLOGGER_PHOTO_ID_5078183962921721618" border="0" /></a><br /><br /><div style="text-align: justify;">pretty OK to me. Still, after watching this <a href="http://origami.artists.free.fr/NguyenHungCuong/Eagle/eagle.htm">eagle</a> from Nguyen Hung Cuong, I tried to test overlaying of flaps, which I definitely chose.<br /><br />And the tail. I tested many different tails and the solution I liked the most was an achordeon or semi box pleated one, which gave the model some ellegance, at the time that simulates rear wing feathers and hide the inside of the model, but I'm not totally decided.<br /><br />This Condor still needs a lot of work and developing, details like the head comb (which I think I'll get enlarging and trimming the head) but no doubt it has teached me a lot. I'll fold it in a better paper and more finished and post it in the future weeks, I hope you like it and also looking forwrd to know your opinions<br /></div><br />Many regards.<br /><br /><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjcsn0EV1cQGaFXcvAve1kHQttS2hCQ9uvuAEKr0NrucEOqn-kJCp2ybH9w_qfzkApw_kiNDCNRBYb9FMKjhMMYkJYqE67d2zI2hA3BbF73QSnYW0F2qL1PS21uBPHh89mQHTV4/s1600-h/IMG_0345b.JPG"><img style="margin: 0px auto 10px; display: block; text-align: center; cursor: pointer;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjcsn0EV1cQGaFXcvAve1kHQttS2hCQ9uvuAEKr0NrucEOqn-kJCp2ybH9w_qfzkApw_kiNDCNRBYb9FMKjhMMYkJYqE67d2zI2hA3BbF73QSnYW0F2qL1PS21uBPHh89mQHTV4/s320/IMG_0345b.JPG" alt="" id="BLOGGER_PHOTO_ID_5078184263569432354" border="0" /></a><br /><br /><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiRNwNQhFbrA9TtQtGU6G0z692KzNqu8ECZ6VMXJ6ay0n5Ajm3LtP5nNWok41rNZ7OI66TtmDUNbVv6Z_LMmhUxakcTuK9f1OLTjqTv9H8zzn03I1kdu-TYXhvDf-GM0s5QAMCe/s1600-h/IMG_0334b.JPG"><img style="margin: 0px auto 10px; display: block; text-align: center; cursor: pointer;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiRNwNQhFbrA9TtQtGU6G0z692KzNqu8ECZ6VMXJ6ay0n5Ajm3LtP5nNWok41rNZ7OI66TtmDUNbVv6Z_LMmhUxakcTuK9f1OLTjqTv9H8zzn03I1kdu-TYXhvDf-GM0s5QAMCe/s320/IMG_0334b.JPG" alt="" id="BLOGGER_PHOTO_ID_5078184486907731762" border="0" /></a><br /></div>peterselfhttp://www.blogger.com/profile/15778752823201555000noreply@blogger.com2tag:blogger.com,1999:blog-38839897.post-79641572498124810862007-05-23T17:11:00.000-07:002008-12-08T20:58:38.099-08:00The Paper (part II)<br><br /><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi7MT73xjHb3wu7706NfJskNIBIky-WsYuHI-5rucIQUWMHIIPJtMoX-RATaV3VyZrXIpKseMG-U_FTcnzoMyXq8UhRCxHWH-jKOXYke4ZG29-hD1aKcgHDTaNhCKIKSZ18x-ri/s1600-h/clothrolls.jpg"><img style="margin: 0px auto 10px; display: block; text-align: center; cursor: pointer;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi7MT73xjHb3wu7706NfJskNIBIky-WsYuHI-5rucIQUWMHIIPJtMoX-RATaV3VyZrXIpKseMG-U_FTcnzoMyXq8UhRCxHWH-jKOXYke4ZG29-hD1aKcgHDTaNhCKIKSZ18x-ri/s400/clothrolls.jpg" alt="" id="BLOGGER_PHOTO_ID_5067672668990890322" border="0" /></a><br /><br /><div style="text-align: justify;">I've planned to speak a couple of things about the effects on paper of folding but then there are still one or two things still to say about paper itself and its making. Most of this comes from the fantastic Michael G. LaFosse's book "Advanced Origami" and his project Origamido.com, book which is an ultimate guide to become an artisan of papermaking and origami.<br /><br /><span style="font-weight: bold;">Cellulose</span><br /><br />Continuing with our approach to paper's nature, in the first part we mentioned cellulose and its discovering in 1852 by Meillier; however, some sources points to the french biogolist Anselme Payen as the first person isolating cellulose from wood [1, 2]. This element constitutes the main component of plant's cells and is important to origami since its atomics bounds promotes the creation of long molecular fibers. Looking at the cellulose molecule (C6 H10 O5)<br /><br /><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg-cnJuCYc4Y8f7qbdaNTMgXo0azsqbUCdLYM0CoTVS_ebMMO6y2kYWzJmPd_mGhqmturhSe6ZLqWEcjyM2R66HJ1fkG2VNDzlATwZf5Z_peFTiRDsJ-eSyrA0rjrcH4WOPpXt-/s1600-h/p1.gif"><img style="margin: 0px auto 10px; display: block; text-align: center; cursor: pointer;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg-cnJuCYc4Y8f7qbdaNTMgXo0azsqbUCdLYM0CoTVS_ebMMO6y2kYWzJmPd_mGhqmturhSe6ZLqWEcjyM2R66HJ1fkG2VNDzlATwZf5Z_peFTiRDsJ-eSyrA0rjrcH4WOPpXt-/s320/p1.gif" alt="" id="BLOGGER_PHOTO_ID_5067657404677120242" border="0" /></a><br /><br />is possible to note that their free OH radicals can generate a very strong H2O bound and also an oriented chain, which is the origin of vegetable fibers, the greater the number of cellulose molecules bounded on this way (known as a polysacaride) the greater the resulting fibers will be and, as we saw previously, this is vital for paper strength. The cotton rag that surrounds the fruit has the purest vegetable cellulose fibers in nature and they can hold until 6000 molecules in a polysacaride. This bound is so strong that only herbivore's digesting systems can break. As an interesting fact cotton fibers can size up to 3 cm when pine wood fibers only 3 mm.<br /><br />Normally first wall on plant's cells contain pure cellulose and when going deeper inside different components appears, as lignine. Next table (sorry, in spanish) shows the % contents of different types of plants:<br /><br /><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgnjT0fDHU_kZjGdKq6P66b-LgQrOgZDrG8iHITATE7PwyiggbEo-nt-0q5yMI_quzv34XZezly6O6dqFnuoYeaFrdJLjMtG7hm34DCrzFwVD6fdHsaH1btNwlDI6wKcAw8r4Xc/s1600-h/tabla1.jpg"><img style="margin: 0px auto 10px; display: block; text-align: center; cursor: pointer;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgnjT0fDHU_kZjGdKq6P66b-LgQrOgZDrG8iHITATE7PwyiggbEo-nt-0q5yMI_quzv34XZezly6O6dqFnuoYeaFrdJLjMtG7hm34DCrzFwVD6fdHsaH1btNwlDI6wKcAw8r4Xc/s400/tabla1.jpg" alt="" id="BLOGGER_PHOTO_ID_5067660686032134418" border="0" /></a><br />Source: TAPPI<br /><br />all this extra elements affect badly to paper's quality and lifetime and different procedures has been created to extract them from the plant, many of them chemical and heavily toxic to the environment. That's the reason why paper factories are eyestorms for nature's defending groups all over the world, since this factories throw their industrial waste normally to rivers or seacoasts, together with the fact that they change natural flora by pine trees, which roots have an strong factor of fertile earth's destruction but a shorter and cheaper time of growing and development as adult trees.<br /><br />As we said, in 1852, american Benjamin Chew Tilghman patented the method to obtain cellulose from wood, by the chemical creation of cellulose sulfithe. In the world, main trend is to obtain cellulose from this source (woods), except for India (only a 40%) and China, which obtains 80% of it from other plants [1].<br /><br />Finally to say that cellulose molecular bound is so strong and closed that paper is more rigid in one direction than the other, and as LaFosse says in his book if you hold a square by one edge it inclines down lower than if you hold it by the next edge on its side, because fibers trends to align in a direction. Also cellulose in insoluble on water and, when water is added to paper, fibers grow wider, not longer, and that's the reason because paper doesn't get bigger and wrinkles appears on its surface (an important fact when you try wet folding).<br /><br /><span style="font-weight: bold;">Beating</span><br /><br /><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiAaO8MyIGDDdzXKWPPHOWJd6ZB7nqnVyq4bv71c80sVUhbR30BPQ4s-7ai9GB2Ddvad_fmcyY0SJGkeYXAzcbp-w4DxyJ4_wecYRT-FHeSrRucZWfWB0Q-Js9z2f9nW99P8hDJ/s1600-h/hollander2.jpg"><img style="margin: 0px auto 10px; display: block; text-align: center; cursor: pointer;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiAaO8MyIGDDdzXKWPPHOWJd6ZB7nqnVyq4bv71c80sVUhbR30BPQ4s-7ai9GB2Ddvad_fmcyY0SJGkeYXAzcbp-w4DxyJ4_wecYRT-FHeSrRucZWfWB0Q-Js9z2f9nW99P8hDJ/s400/hollander2.jpg" alt="" id="BLOGGER_PHOTO_ID_5067662678896959778" border="0" /></a><br /><br />In Part I we saw that long fibers creates a resistant but rough paper and short fibers a softer and fine one. The chemical process to separate cellulose from plant leaves untouched and separated fibers, so if you want to get fineness it is necessary then a beating and agitating stage. This is achieved by the usage of mills and pulp circuits, most common of them is the Hollander mill (image above).<br /><br />It is basically a water-pulp circuit plus a rotating mill with square gears that reduces the passage area of the liquid, beating the fibers, cutting and spreading them in the solution.<br /><br />As long the time the pulp is beated, the greater its opacity and fineness of the resulting paper, also its fragility (normal paper is beated for a couple of hours and tissue paper could be more than 8 hours in the process).<br /><br /><span style="font-weight: bold;">The Pulp Sheet</span><br /><br />Once the pulp solution leaves the Beating, it is possible to color it by adding retention agents and pigments. Then is necessary to create a layer of homogeneous pulp which will become the sheet of paper. One way to do it is water mixing and depositing it in a rectangular frame, as cellulose doesn't dissolve in water, it evaporates and leave the pulp layer, of course if you use a frame with a filter screen at the bottom in a way that water drops down the process is accelerated and improved. Industrial paper making spreads the wet pulp in long lines of production which controls its thickness and density.<br /><br /><span style="font-weight: bold;">Pressing</span><br /><br />The wet pulp sheet is then pressed according to desired degrees of density required for paper. Here we look again at cellulose fibers since if they are smashed the area covered by them increases and also the pulp density and bounding, making paper with bigger opacity and shapping, as you can see in the next images. Some water is extracted from pulp in this stage also but normally sheets are placed between wet felts.<br /><br /><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiD3rk5ll6Ed7_LZVkPlqHm_V3jIr7JbDaQWPbup57UsifWu8Qe_bYuts5tKQtrB1kijEaDM6I25WixepfROOAmhtYrT3JcPTEU0Te15Z8aHxXVTWGQg8O_8cwGL3YBC2Ty-iTq/s1600-h/contact.jpg"><img style="margin: 0px auto 10px; display: block; text-align: center; cursor: pointer;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiD3rk5ll6Ed7_LZVkPlqHm_V3jIr7JbDaQWPbup57UsifWu8Qe_bYuts5tKQtrB1kijEaDM6I25WixepfROOAmhtYrT3JcPTEU0Te15Z8aHxXVTWGQg8O_8cwGL3YBC2Ty-iTq/s400/contact.jpg" alt="" id="BLOGGER_PHOTO_ID_5067664736186294578" border="0" /></a><br /><br /><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhArHcMaqVt_V6qRBkVZldzXmSJ_UnAkTCOL1bXYbZwVumObGmP6U1ATEnGZrLhBFO5T1L3PU5qZZvyehMZaZe_1Fi1D1bSdzy05OT1dlHHD9eDVUQer2aNhoU6p0ocDFgAVoOT/s1600-h/paper.jpg"><img style="margin: 0px auto 10px; display: block; text-align: center; cursor: pointer;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhArHcMaqVt_V6qRBkVZldzXmSJ_UnAkTCOL1bXYbZwVumObGmP6U1ATEnGZrLhBFO5T1L3PU5qZZvyehMZaZe_1Fi1D1bSdzy05OT1dlHHD9eDVUQer2aNhoU6p0ocDFgAVoOT/s400/paper.jpg" alt="" id="BLOGGER_PHOTO_ID_5067665066898776386" border="0" /></a><br /><br /><span style="font-weight: bold;">Driying<br /><br /></span>Finally paper is driyed by hot air until it keeps its color and natural humidity. Also it is possible to give it some finishing with special surface paints, as for shinny continuous surfaces.<br /><br />This far we will reach about the processes of paper making, in next posts I will try to talk about the effects on paper of making different types of folds, as long as the effects on stress and recovering of paper and fibers, I hope you are finding this journey interesting so far ;)<br /><br />Bibliography<br /><span style="font-size:85%;">1 http://web1.caryacademy.org/chemistry/rushin/StudentProjects/CompoundWebSites/2000/Cellulose/history.htm<br />2 http://en.wikipedia.org/wiki/Cellulose<br />3 http://www.forestprod.org/cdromdemo/pf/pf8.html<br /></span></div>peterselfhttp://www.blogger.com/profile/15778752823201555000noreply@blogger.com2tag:blogger.com,1999:blog-38839897.post-40570478863721398942007-04-29T17:15:00.000-07:002008-12-08T20:58:38.152-08:00Her Majesty the Paper (Part I)<br></br><br /><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiDBZCWLD6JOCEFrPRIIl_f1MyY8X5b1lB8N70p9kX35a1St5Z-Rx1WfSHLeMTmYSBUt-sj2k1QBvYUeKaXdnmyoJvYLiJpeuEOtLxpgM8pFUFU3qdx-76hoCFMRZjm3Vr4vA_b/s1600-h/papeles3.jpg"><img style="margin: 0px auto 10px; display: block; text-align: center; cursor: pointer;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiDBZCWLD6JOCEFrPRIIl_f1MyY8X5b1lB8N70p9kX35a1St5Z-Rx1WfSHLeMTmYSBUt-sj2k1QBvYUeKaXdnmyoJvYLiJpeuEOtLxpgM8pFUFU3qdx-76hoCFMRZjm3Vr4vA_b/s320/papeles3.jpg" alt="" id="BLOGGER_PHOTO_ID_5058681139982128178" border="0" /></a><br /><br /><div style="text-align: justify;"><div style="text-align: justify;">Frequently people ask me about what kind of paper I prefer to fold one or another model, if I have a preferred generic one, or if there is a "traditional" or "classic" paper from Japanese origami and what gives it its "special" condition. Then I gave answers like "to complex figures and very detailed is better to use tissue foil ", or "if I want the models to keep their shape in time you can use metalized paper", or "kraft paper is good if you want to wetfold or fold with brush". And everybody get happy thinking how much I know about this handcraft; everybody except me of course who realize that in fact I don't have a clue about what paper is, nor how it works, or why it has this or that quality.<br /><br />How much knows an origamist about the paper he uses, how it was made, what's the secret that keep it tight and how to select the best for their purposes? And what about the making processes of paper and the ecological problems they mean to nature?<br /><br />So I decided to do some research.<br /><br />Maybe a good starting-point should be what paper is not. Word came from latin papirus which signed the plant which were used by the egipcians to make their famous writing rolls .. However, yet the principle is the same, paper we know and use today doesn't have its origins there. Papirus is a plant with long leafs, soft stalk and a triangular wide base and the rolls were made directly from its medulla, a paste which is spread over molds and hydrated with water, pressed and the left dry, to finally be rubbed with ivory or shell to soften its surface. Its origins goes back until 3000 BC and its use s to Greece and the entire Rome Empire until the Vth century. After that, writing was done over parchments, made from fine layers of cow, sheep or ram leather(1).<br /><br /><br /><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjfwPTYvKUiU-AMRfFS8nXD2eDjVv_xJqjwXlc2yky0rDB4Et8_5FsY0sNsz16ySLwDGimy97241ii_fGrHFW0jsg0NdXqFsYM6yN8Nrit6rP9Qq5oFgywQJMmg06f0-zi_yAG-/s1600-h/china1.jpg"><img style="margin: 0px auto 10px; display: block; text-align: center; cursor: pointer;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjfwPTYvKUiU-AMRfFS8nXD2eDjVv_xJqjwXlc2yky0rDB4Et8_5FsY0sNsz16ySLwDGimy97241ii_fGrHFW0jsg0NdXqFsYM6yN8Nrit6rP9Qq5oFgywQJMmg06f0-zi_yAG-/s320/china1.jpg" alt="" id="BLOGGER_PHOTO_ID_5058674048991122450" border="0" /></a><br /><br /><br />The true origin for paper lies on China. Around AD 105, emperor Ho Ti ordered his eunuchs chief Tsai Lun the study of new materials for writing, since the wood tablets and silk patches were unpractical for the growing usage of writing. His work concluded with the making of a vegetable pulp made with fibers from bamboo cane, mulberry and other plants, along with the development of a procedure for the making of the paper, which was kept absolutely secret for more than 500 years.<br /><br />Only after AD 500 the technique of paper making passed to Korea and in AD610, priest Ramjing traveled to Japan for bringing assessment in the production of paper; both countries will upgrade it according to their own resources and technology (in AD700 rice flour was added to the pulp). In 750 it passed to Central Asia, Tibet and India, to finally reach the Arabian world and his vast empire, which ran through all Northern Africa until Spain in Europe.<br /><br />Here there is an important change in the technique. Arabs, not having many fresh plants, started to use clothe fibers and to recycle materials like old carpets, tapestry or damaged cane products. Pulp then obtained produced a finer paper but with a shorter life; also they incorporated starch, which improved its resistance to the stroke of writing. The first workshop installed in Europe was in the Hispanic Arabian city of Cordoba in AD1036.<br /><br />Perhaps it is a good moment to start explaining what is paper and how does it work. It is a irregular structure formed by entangled fibers in a paste which is hydrated and left decant in a layer relatively homogeneous. The size of the fibers plays a main part to achieve some properties in the paper; long fibers will give it strength and rigidity, but with a rough finish, and short fibers will produce fine paper, formed, flexible, textured and opaque, but not resistant, better for writing. In mixture of both fibers lies the secret to obtain specific results.<br /><br /><br /><div style="text-align: center;"><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgjRjloKZKrsQdQ6D9vIdRlgJ94KaiD5pd1e_OnhcyEeXgKql4vLzDrb1DvU3ZB-jvGGNTmlk9DL-VJOTX4WAGvftcg7UfwiyCn3gLqx-6-6dyy1CzULWb5C0Cwxoo7Byyz0dxr/s1600-h/celulosa2.jpg"><img style="margin: 0px auto 10px; display: block; text-align: center; cursor: pointer;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgjRjloKZKrsQdQ6D9vIdRlgJ94KaiD5pd1e_OnhcyEeXgKql4vLzDrb1DvU3ZB-jvGGNTmlk9DL-VJOTX4WAGvftcg7UfwiyCn3gLqx-6-6dyy1CzULWb5C0Cwxoo7Byyz0dxr/s320/celulosa2.jpg" alt="" id="BLOGGER_PHOTO_ID_5058702657768281170" border="0" /></a>a)raw white paper (1000x), b) secondary cellulose fiber (400x)<br /></div><br /><div style="text-align: center;"><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgivUkYV2bPhRxyALepYXAPksCbqIsrpDrMKW7ngJXhN6nYhH2B6pqTyKOwrD3aGhKLy1FD-sb9LvL2h3RMLS2ShkbagI0JfciyoS65Snar03FE6402dAa9ZzVuqDtX66UNcyEx/s1600-h/celulosa3.jpg"><img style="margin: 0px auto 10px; display: block; text-align: center; cursor: pointer;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgivUkYV2bPhRxyALepYXAPksCbqIsrpDrMKW7ngJXhN6nYhH2B6pqTyKOwrD3aGhKLy1FD-sb9LvL2h3RMLS2ShkbagI0JfciyoS65Snar03FE6402dAa9ZzVuqDtX66UNcyEx/s320/celulosa3.jpg" alt="" id="BLOGGER_PHOTO_ID_5058700772277638210" border="0" /></a>secondary cellulose substrate (200x)<br /></div><br />With Crusades the manufacturing process arrived to Italy, country where it was incorporated to it a glossy finish with animal grease that gave paper a great surface resistance, which allowed the sharp scribe's pens (made from feather) to write without wrapping it, this made the parchment to disappear very quickly from Europe. The writing technique with feather, dominant in Europe, against the calligraphic brush painted one in the East, determined the final differences between European and Chinese-Japanese paper (2).<br /><br />With the creation of the printing press on XVth Century, needs of paper grew explosively and clothing resources started to lack, and also hands to do it. In 1798, french Nicholas Louis Robert created the first effective paper machine, which was improved later on 1803 by english brothers Henri and Sealy Fourdrinier. They incorporated on 1840 the crushing of wood to the making process of the pulp. Finally, on 1850, the chemical process to produce pulp was created, which made the production much cheaper. On 1852 Meillier discovered cellulose and Tilghman patented the process to obtain it from wood. Just on 1853, the circle was closed, when paper machines arrived to China and Japan, country that produces the 15% of world's paper needs.<br /><br /></div><br /><br /><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj1x1sb4vUL6eutbp0vcfZ-lQl_OuaqTbUgHRmNIRYEll-TmDsa3UUdGw7ElSLsUryeuOjvfZOFLf3YnyopgMnJFrQcyw_T16q7FI4M4zpjdxvOw29_otNgxVxZ14SArA0qnSr9/s1600-h/rollo.jpg"><img style="margin: 0px auto 10px; display: block; text-align: center; cursor: pointer;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj1x1sb4vUL6eutbp0vcfZ-lQl_OuaqTbUgHRmNIRYEll-TmDsa3UUdGw7ElSLsUryeuOjvfZOFLf3YnyopgMnJFrQcyw_T16q7FI4M4zpjdxvOw29_otNgxVxZ14SArA0qnSr9/s320/rollo.jpg" alt="" id="BLOGGER_PHOTO_ID_5058674899394647074" border="0" /></a><br /><br /><br />Bibliography (in Spanish):<br />(1) <a href="http://www.papelnet.cl/papel/papel.htm">http://www.papelnet.cl/papel/papel.htm</a><br />(2)<a href="http://www.papelerapalermo.com/oficios/art-sobre-como-llego-el-papel.asp">http://www.papelerapalermo.com/oficios/art-sobre-como-llego-el-papel.asp</a><br /></div>peterselfhttp://www.blogger.com/profile/15778752823201555000noreply@blogger.com0tag:blogger.com,1999:blog-38839897.post-5435053180524678162007-04-06T18:10:00.000-07:002008-12-08T20:58:38.186-08:00My workshop in Purranque: The Kawasaki Rose<a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiqHZDoFIaPOjdhKymBh551utwcRDJC0WEe5wK_QYjQ7Xt_ZtTbbgoKFjRoB9HzPwXde7gc0CuDn3o4T-u-HsvEVPB4j8Rmn-GGGsD5UepZYyRNqeeLrMOVIbKeBM_6v4cZ9rs-/s1600-h/20070314+090.jpg"><img id="BLOGGER_PHOTO_ID_5048723539836917762" style="margin: 0px auto 10px; display: block; cursor: pointer; text-align: center;" alt="" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiqHZDoFIaPOjdhKymBh551utwcRDJC0WEe5wK_QYjQ7Xt_ZtTbbgoKFjRoB9HzPwXde7gc0CuDn3o4T-u-HsvEVPB4j8Rmn-GGGsD5UepZYyRNqeeLrMOVIbKeBM_6v4cZ9rs-/s320/20070314+090.jpg" border="0" /></a><br /><div style="text-align: justify;"><bk></bk>A classic figure in origami is the rose created by Toshikazu Kawasaki from his famous twist folding. Its delicate curve petals had made it one of the most popular and spread models inside origami (and outside).</div><div style="text-align: justify;"> </div><div style="text-align: justify;"><br /></div><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhnSo4IMT9glP4uMFOQpneHoFzjJcOXr5OOdCt4As32QFoffMMSsMAIyq8vwypu3V9CgPGWqOfjdiewGLT35LjJvoNKJb-LIsbfwCP47qwEJLaUISDt8aVV6YlSu3log9AXYJDy/s1600-h/kawasaki1.gif"><img id="BLOGGER_PHOTO_ID_5049011452969605186" style="margin: 0px auto 10px; display: block; cursor: pointer; text-align: center;" alt="" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhnSo4IMT9glP4uMFOQpneHoFzjJcOXr5OOdCt4As32QFoffMMSsMAIyq8vwypu3V9CgPGWqOfjdiewGLT35LjJvoNKJb-LIsbfwCP47qwEJLaUISDt8aVV6YlSu3log9AXYJDy/s320/kawasaki1.gif" border="0" /></a><br /><br /><div style="text-align: justify;">History of this rose is easier to build than the one of its author. There is very few about this japanese mathematician, who teachs in the <a href="http://www.sasebo.ac.jp/"><span class="blsp-spelling-error" id="SPELLING_ERROR_12">Sasebo Technologycal School</span></a> and became the first "Doctor in Origami" of History. He is also known for his theoretical studies about the relationship between origami and mathematics, developing, among others, the Theory of Iso-Areas (Mirror Areas). In 1998 he pulished <a href="http://www.amazon.com/Roses-Origami-Math-Toshikazu-Kawasaki/dp/4889961844">Roses, Origami & Math</a> (which should be now on its way to my home :) )<br /></div><br /><br /><div style="text-align: justify;"><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="http://www.amazon.com/Roses-Origami-Math-Toshikazu-Kawasaki/dp/4889961844/ref=sr_1_1/102-0044102-9372921?ie=UTF8&s=books&qid=1175561366&sr=1-1"><img id="BLOGGER_PHOTO_ID_5049001072033650738" style="margin: 0pt 10px 10px 0pt; float: left; cursor: pointer;" alt="" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjQXyovxxsjBlJGtJJCeBDqUmdxP9iW41aYEYqQwMhB2o3jlMH_22bLBhyphenhyphenvQ08iicUbCSv8yfYA09KzN1Geq4jbUcTFeQhlWZ5jwc-KOaeo1WTxoqYSM87qvsKvd3AH4zwu0a-E/s200/kawasaki.jpg" border="0" /></a>On this book there is a complete chapter dedicated to this rose and its variations, being this the first version "from the author" of its diagram. Before, in 1994, during the New York Convention, Kawasaki teached the rose to the american creator Joseph Wu and he folded and gifted one to his friend Winson Chan. He unfolded the gift and developed a folding sequence and diagram, which was published and spread trough the net, becoming very popular and known as the <a href="http://www.josephwu.com/Files/PDF/rose.pdf">"<span class="blsp-spelling-error" id="SPELLING_ERROR_35">New</span> Kawasaky Rose"</a>. Later, japanese Kunihiko Kasahara published in his book <a href="http://www.amazon.com/Origami-Connoisseur-Kunihiko-Kasahara/dp/4817090022">"<span class="blsp-spelling-error" id="SPELLING_ERROR_39">Origami</span> <span class="blsp-spelling-error" id="SPELLING_ERROR_40">for</span> <span class="blsp-spelling-error" id="SPELLING_ERROR_41">the</span> <span class="blsp-spelling-error" id="SPELLING_ERROR_42">Connoisseur</span>"</a> a diagram a little less elaborated than Chan's and called it the "Original Kawasakai Rose". Many other variations has been created over this three diagrams, to get a larger number of petals or diferents finishing details, but the heart of this figure, the twisting fold, remains unvariable as a testimony of the geniality of its author.<br /><br />Chan's diagram remains being my favourite, mostly because its final result and also I guess because sentimental reasons (it was one of the first figures I've memorized and gifted) However, I have to admit that its 22.5º grid pre-folded takes out all ellegance to the next steps in the folding. Here there is a video about how the rose is collapsed from its pre-folded CP.<br /></div><bk><br /><br /><object height="350" width="425"><param name="movie" value="http://www.youtube.com/v/nquHxdpFFBI"><param name="wmode" value="transparent"><embed src="http://www.youtube.com/v/nquHxdpFFBI" type="application/x-shockwave-flash" wmode="transparent" height="350" width="425"></embed></object><br /><br /><bk></bk><br /></bk><div style="text-align: justify;"><bk>It is precisely the analysis of the New Rose what gave the folder a deep learning about the relationship between geometry and origami. To build this rose is almost being creating, step by step, the CP of the figure, to collapse it then in a couple of master moves. The point I want to remark is that anyone who has folded this a couple of times can realize that the pre-folding of the grid is unnecessary to get tits main folds (step 12 of Chan's diagram). The perfect geometry of Kawasaki give us a large number of references to achieve every one of them from two simple diagonal lines at 22.5º. This is especially useful when you use thick papers o textured to fold the rose, because Chan's method to draw the grid lose accuracy over the edges.</bk><br /><bk></bk><br /><bk>With this in mind, and studying a little, I could develop a diagram to get the full figure from a couple of reference lines, including the secondary petals from steps 9 to 11 on Chan's diagram.</bk><br /><bk></bk><br /><bk>For example, to generate folds from Chan's step 12, it is only necessary the axial line and a reference point, aligning the line over itself and marking the fold passing through the reference point, as I show in the next image:</bk><br /></div><div style="text-align: justify;"><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjH3-JMVTs6Dcbj8u9CbJ3yapSOz2xtm81gULn7N13Vpl-VsXxMymB3xgmPECnkTTudYw92lTTbdC6XzrqSYI5r_n47x9b4nLSjHFgUvoMEEfKTmIM8LSZsWztBk-xAjNpre8Qu/s1600-h/rosa15.jpg"><img id="BLOGGER_PHOTO_ID_5048720872662226898" style="margin: 0px auto 10px; display: block; cursor: pointer; text-align: center;" alt="" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjH3-JMVTs6Dcbj8u9CbJ3yapSOz2xtm81gULn7N13Vpl-VsXxMymB3xgmPECnkTTudYw92lTTbdC6XzrqSYI5r_n47x9b4nLSjHFgUvoMEEfKTmIM8LSZsWztBk-xAjNpre8Qu/s320/rosa15.jpg" border="0" /></a>Is when I remember my old Maths teacher at school, saying by memory: "there is one and just one perpendicular line to a given line which passes through a given point". That can be read as an Origami Theorem: "To fold a perpendicular line of a given one is necessary only that line and a given point"<br /><br /></div>There are also other references to follow in this particular fold, as I show them in the image above.<br /><br />Same thing occurs with the other folds from that step:<br /><br /><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiBp7aTBwD4H6zkcOao8S79zMwJVXxDeit00qrfzBphuZsI0NlL6VpNKnI4X_8QNuqCqmbg6CLO8IwoPEWOV771sMLAbTGlftTsZHnbqd5BAAu14O8LIWlZGOO7Z070rWzzSdoY/s1600-h/rosa13.jpg"><img id="BLOGGER_PHOTO_ID_5048721594216732642" style="margin: 0px auto 10px; display: block; cursor: pointer; text-align: center;" alt="" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiBp7aTBwD4H6zkcOao8S79zMwJVXxDeit00qrfzBphuZsI0NlL6VpNKnI4X_8QNuqCqmbg6CLO8IwoPEWOV771sMLAbTGlftTsZHnbqd5BAAu14O8LIWlZGOO7Z070rWzzSdoY/s320/rosa13.jpg" border="0" /></a><br /><br /><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg-MymsGcOjlmnnSPFoTvhpNw1ppJVNyEcseuf_PG8sKE-WDfw3ouIvDtM900Yn9kkqZ02hxWKKiSsG-4IwGbByom-Huv2E6R8h45rNoI6YQ1KiYNZ3_INC8CYNfRGhMXETALn_/s1600-h/rosa14.jpg"><img id="BLOGGER_PHOTO_ID_5048721963583920114" style="margin: 0px auto 10px; display: block; cursor: pointer; text-align: center;" alt="" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg-MymsGcOjlmnnSPFoTvhpNw1ppJVNyEcseuf_PG8sKE-WDfw3ouIvDtM900Yn9kkqZ02hxWKKiSsG-4IwGbByom-Huv2E6R8h45rNoI6YQ1KiYNZ3_INC8CYNfRGhMXETALn_/s320/rosa14.jpg" border="0" /></a><br /><br /><div style="text-align: justify;">My hope was to get the rose whit the less possible number of foldings, to get the petals as much clean as possible, but at the end, just a few of them can be avoided. Also the sequence itself is as complicated as Chan's (or even more). All I could keep was the great experience of having learned a lot and grown-up in my relationship with folding and geometry, both things which justify the experience and that's why I share it to anyone who desires to try it. This is the link to the <a style="font-weight: bold;" href="http://base.google.com/base/a/1542896/D2569521238301278489">document Google Base page</a> and thi is the direct link to the document (it is zip pdf file and its size is about 1 Mb):<br /></div><br /><a href="http://base.google.com/base_media?q=hand-4067043556441292646&size=8"><span style="font-size:180%;">newrose2.pdf.zip</span></a><br /><br />Many regards and luck if you try it :), I'll be happy to answer any question about it.peterselfhttp://www.blogger.com/profile/15778752823201555000noreply@blogger.com9tag:blogger.com,1999:blog-38839897.post-28460814797513864992007-03-26T22:34:00.000-07:002008-12-08T20:58:38.296-08:00Roman Diaz Design Workshop<div align="justify"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhrejijafsoQLVe0YO4WsM0PFPTbsFxuZKU0VwzjHOGU2MhLZb1LstriQ2NnITLdaJ7GQfIcBuQv7PRJqxImtxWFg33oQ4HMRZJl1NzTMqAVg_y5LmNhwRAOIjfs2DxyldfWAUX/s1600-h/IMG_0099d.jpg"><img id="BLOGGER_PHOTO_ID_5044244130612042754" style="margin: 0px auto 10px; display: block; text-align: center;" alt="" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhrejijafsoQLVe0YO4WsM0PFPTbsFxuZKU0VwzjHOGU2MhLZb1LstriQ2NnITLdaJ7GQfIcBuQv7PRJqxImtxWFg33oQ4HMRZJl1NzTMqAVg_y5LmNhwRAOIjfs2DxyldfWAUX/s320/IMG_0099d.jpg" border="0" /></a><br /><bk><br />Art is a fine dialogging system between humans. Exposing a creation in which has been (deliberately or not) placed a message and a sense, makes the audience to read and translate it into its own coded experience of reality (H. Maturana says the only reality we can be sure is ours, as autopoietic, independent and isolated beings). And one of the most used mechanisms to achieve this dialog is the Representing act, which is the reproduction by a mean (visual, textual, etc) of what can be perceived as real.<br /><br />In that sense, what calls our attention on a painting of a horse? What tell us that its markings are actually a horse? its standing, its attitude? That make us to remember something of the past? Or its global message, inside an scene? Or maybe its degree of realism and exactitude? What make us to experience the "click" that triggers an emotion? The act of Representing then lies on the deepest places of human’s ways of art.<br /><br />And Origami is not out of this, when modular and geometric origami talks us about perfect forms, unnatural forms, or remembering the fragility of mortal and organic nature by opposition, the figurative origami exercises the representing of the daily and real nature.<br /><br />So what's the figurative designer looking for? a living creature? and how does he achieve that? by reproducing an standing or attitude, by the realism or exactitude (as we said before), by any characteristic detail, like the big pincers of the crab, or the sad big eyes of the panda? It is clear to me that there are as many answers as ways to watch and observe the reality, the important thing then is to achieve the dialog. Is also clear that every designer looks for different an own objectives in the time of thinking their figure.<br /><br />That was what happened in the Design Workshop that the Uruguayan Master Roman Diaz gave on Purranque 2007. The goal: To design a fish. Every attendant defined their own objectives and goals for their figure: that it should be symmetric, that it should stand like it was jumping out of the water, or that it could float for a while on water, or be a goldfish, or swordfish with its spur, etc etc. The next day we discussed about all of this, what objectives were achieved, what had to be abandoned, problems appeared for the type of base chosen for the goal.<br /><br />It was clear, as Roma says in his blog entry, that experience played a fundamental part on the results obtained, the choice of a base was fundamental to get the needed paper for every part of the figure and to develop the details desired, but also that choice came with new problems and difficulties to be confronted (I remember a base, fish base I guess , chosen for a swordfish, which made impossible to get a symmetric double pointed fish tail). Details as the color changes or variation on the folds were discussed in the group and teached us the importance of the second and third lecture of a finished prototype, making the design process a living, evolutioning, dynamic, and group-able activity.<br /><br />Work from the heart of the figure towards the outside and, if the forced changes made to lose the main goals and objectives, start again and test a different base. This could be done until the point where one works only with Crease Patterns on his head, and knows what geometry could allow the presence of a head, a dorsal flap, an ellipsoid and moving body, or that extra paper for the gills. A level that Nicolas Gajardo, young wonder of Origami Chile, seems to be achieving.<br /><br /><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj2meCM-mFjWfd1INCdBTNLu7Grlf5Dx52C4xJCOAu6v4dJQqIsQRT97NLLTn-mGjIbtkTt1L8MxcRU55HsKPtLn8JK6H-DqrF9a3KJV2tbaZssqP-wyvE4pZ3MdZhPglde-1ix/s1600-h/IMG_0100c.jpg"><img id="BLOGGER_PHOTO_ID_5044448966192323602" style="margin: 0px auto 10px; display: block; text-align: center;" alt="" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj2meCM-mFjWfd1INCdBTNLu7Grlf5Dx52C4xJCOAu6v4dJQqIsQRT97NLLTn-mGjIbtkTt1L8MxcRU55HsKPtLn8JK6H-DqrF9a3KJV2tbaZssqP-wyvE4pZ3MdZhPglde-1ix/s320/IMG_0100c.jpg" border="0" /></a><br /><br />Another fantastic example was given by Polo Madueño (Argentina, in first picture to the left), who, while we were talking, took his objective's sheet of paper and improvised a great fish mask, really simple, really expressive, so suggesting that it made unnecesary any further detail or realism to look at it as a real fish, ready to jump on our face and talk us about its home at the bottom of the sea. If we play attention, it is possible to read every one of his objectives:<br /><br /></bk><ul><li><bk>Oval body</bk></li><li><bk>Long flaps</bk></li><li><bk>Pointy tail</bk></li><li><bk>Big eyes</bk></li><li><bk>With volume</bk></li><li><bk>Open mouth</bk></li></ul><bk><br /><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgtBTYXEvgxjwwtXK7hgs8mgte4xyFUJ65xvoc4X4uzZ9BeyNTEMx53_0tf8sE416Ud68tNDbVkJ8mVPJ2y2vnPKD2W7ABoncGqGoLxFk4JMSSTdwv7zk_mw67fY7pov_64YQ5n/s1600-h/IMG_0104b.jpg"><img id="BLOGGER_PHOTO_ID_5044452535310146594" style="margin: 0px auto 10px; display: block; text-align: center;" alt="" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgtBTYXEvgxjwwtXK7hgs8mgte4xyFUJ65xvoc4X4uzZ9BeyNTEMx53_0tf8sE416Ud68tNDbVkJ8mVPJ2y2vnPKD2W7ABoncGqGoLxFk4JMSSTdwv7zk_mw67fY7pov_64YQ5n/s320/IMG_0104b.jpg" border="0" /></a><br /><br />amazingly, his figure achieved almost all of them, and the result was an unique piece of improvisation and elegance. An style that now look to me as one very interesting and deep from an artistic point of view.<br /><br />I left the workshop with the feeling that design is not an impossible goal, or a permanently postponed one, and that for reaching it is necessary to fold a large number of figures, study the CPs and confront it like an test and essay process, which demands a good dose of patience and will; so sad that I could assist only as a listener, since I've missed the first session. But maybe was a good thing, time will come to think in my own designs.</bk></div>peterselfhttp://www.blogger.com/profile/15778752823201555000noreply@blogger.com0