The ridiculously wonderful world of the hexaflexagon [video]
Take a strip of paper, a marker, and plenty of slow time in math class and what you have is the weird and wonderful world of the hexaflexagon, best explained by the delightfully geeky mind of Vi Hart.
Incidentally, this year, the recreational math community will be celebrating mathematics and science writer Martin Gardner in October by throwing hexaflexagon parties, so grab your math gang and party like it’s 1956, when his first column on this very topic appeared in Scientific American.
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This is a great video! For people who want to join the worldwide party (Gathering 4 Gardner – Celebration of Mind) honoring Martin Gardner’s work (Vi will talk about this in her next video and the reason she did this Hexaflexagon video) can visit the website http://www.g4g-com.com