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Tuesday 07 April 2015 at 10:34 pm. Used tags: , , ,

 In 1939, Arthur Stone created the HEXAFLEXAGON. Stone really did come from England, his new American paper was too wide for his old English binder, so he cut the edge off. Fiddling with strips of paper, he made the hexaflexagon. 

A hexaflexagon is made up of equilateral triangles, and only equilateral triangles will work. Depending on how many triangles you use, equilateral triangles create a series of endless combinations. 

    Arthur and his group of friends, known as the “Flexagon Committee” came up with hexaflexagons that had 9, 12, 15 and even 48 faces. They also came up with the Square Hexaflexagon. Tukey and Feynman (two students part of the Flexagon Committee) came up with a mathematical theory of the hexaflexagon in 1940, but it was never published. 

    In 1956, an article was published in Scientific American about Hexaflexagons. The public soon became interested in these newly discovered math puzzles. 

     To make your own Hexaflexagon, you can download the instructions with templates and design ideas. Vi Hart also made a series of more videos about the hexaflexagon. There’s a whole branch of hexaflexagon’s called the Hexa-Hexaflexagon, ranging from beginner and advanced, and other types of these fascinating math puzzles.