3 ms·

see also the Mexiflexagon: https://www.youtube.com/watch?v=GTwrVAbV56o https://www.youtube.com/watch?v=GTwrVAbV56o

• Jun8 3y ago
  Vihart’s videos are excellent. I’ve watched her introductory video on hexaflexagons maybe 20 times: https://youtu.be/VIVIegSt81k?si=t_qrkiqUTTfy2l4d https://youtu.be/VIVIegSt81k?si=t_qrkiqUTTfy2l4d
  • tromp 3y ago
    Her videos, the last 2 external links on Wikipedia, are excellent introductions indeed. She even recreates the history of how they originated > The discovery of the first flexagon, a trihexaflexagon, is credited to the British mathematician Arthur H. Stone, while a student at Princeton University in the United States in 1939. His new American paper would not fit in his English binder so he cut off the ends of the paper and began folding them into different shapes.
    • lupire 3y ago
      Her video is an animation of a Martin Gardner "Mathematical Games" article that kicked off the craze. It's been published in a few of his books of article collections. https://www.google.com/search?q=Martin%20Gardner%20%22Mathematical%20Games%22 https://www.google.com/search?q=Martin%20Gardner%20%22Mathem...
      • tromp 3y ago
        Indeed; the story of its origins may also be found at the start of chapter 1 of Gardner's "Hexaflexagons and other mathematical diversions" book [1]. [1] http://geofhagopian.net/papers/GARDNER01.pdf http://geofhagopian.net/papers/GARDNER01.pdf
• ubj 3y ago
  Being from El Paso, I'd argue for calling this a Tex-Mexiflexagon :) Looks delicious! I'm looking forward to trying this sometime.