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Issue 19

The Fold is the online magazine for members of OrigamiUSA. New articles are posted continuously over the two month period of each issue. To contribute to The Fold or for other questions, please see our FAQ.
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by Hadi Tahir
Diagrams for a box-pleated snake designed by Hadi Tahir.
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Curved-crease origami can be designed by considering the properties of ruling lines, lines on the crease pattern that remain straight in the 3D folded form. This technique was developed by David Huffman, who identified conic section curves has being particularly suitable for curved-crease designs. Two examples using ellipses are given as crease patterns.
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by Rick Nordal
A paper folding game invented by Rick Nordal. How many seconds will it take you to fold a snowflake paper into a sequence of geometric snowflake shapes? The player with the fastest folding time wins!
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by Herdy Soepono
Diagrams for two simple connected mountains by Herdy Soepono.
Here is a delightful and vivid summary of Leyla Torres' experiences at PCOC 2013 in Albuquerque, NM.
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Diagrams for a 30-piece modular design by Valentina Minayeva of Ukraine.
We tested Elephant Hide by Zanders in our first review. This time it's Efalin, also by Zanders. Read the review to see how this strong paper held up in our review.
A first hand look into an iPhone app called 'Mr Shingu's Paper Zoo,' reviewed by Gilad Aharoni, an origami-dad.
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Diagrams and video for a 6 piece modular star by Maria Sinayskaya.
A lost shoe, a jar, a mysterious dog, an ugly cat, and the simplest Sudoku ever. Yes, it is a convention report. An Italian one. And yes, you've got to read it!
Diagrams for a dollar bulldog, one of Janessa's first creations.
by Sjaak Adriaanse
Paper hoarders will appreciate this nifty tool for cutting leftover pieces of paper into common size ratios like 4 by 3, Golden and Silver rectangles, or the ratio of the dollar bill.
Modern life and technology modify our world, making it smaller. One of the communities that was born in a virtual environment is flickr, a photo sharing site. That is where I got to know Dáša Ševerová, one of the rising stars in the tessellation and stars field.