: The simplest version, which has three distinct faces.
: A more complex model with six faces, originally investigated by the "Flexagon Committee"—a group that included legendary physicist Richard Feynman and mathematician John Tukey . Hexaflexagons, Probability Paradoxes, and the T...
In the autumn of 1939, a British graduate student named Arthur Stone was trimming American-sized paper to fit his European binder. Bored with the leftover strips, he began folding them into triangles. What he discovered wasn't just a toy, but a gateway into a world where paper behaves like a higher-dimensional object. This discovery eventually became the centerpiece of Martin Gardner’s first book , Hexaflexagons, Probability Paradoxes, and the Tower of Hanoi . The Hexaflexagon: More Than Meets the Eye : The simplest version, which has three distinct faces