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October 2, 2012 10:21 pm PDT
Original Link: http://feeds.boingboing.net/~r/boingboing/iBag/~3/Fpxu_Jp8NCU/hexaflexagons-the-miracle-of.html
Hexaflexagons! The miracle of the inside-out hexagon with many, many sides
The incomparably great Vihart continues her Doodling in Math Class video series with a history and demonstration of the miraculous Hexaflexagon, a simple-to-fold paper hexagon that contains several iterations of itself, which can be found by turning it inside-out over and over again. Sure to delight, inform, entertain, and mystify! Historical Note: This video is [...]Original Link: http://feeds.boingboing.net/~r/boingboing/iBag/~3/Fpxu_Jp8NCU/hexaflexagons-the-miracle-of.html
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