(Un)Folding the Mysteries of A4 Paper -- There's Some Pretty Far Out Geometry in There
By design, 'A' Series paper*, not widely available in the United States but ubiquitous throughout most of the world, lends itself to all manner of geometric 'discoveries' just by folding. This instructable is meant to be an introduction to the vast possibilities embedded in a single sheet. The set...By: mgrodzins
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