For all of the recent strides we’ve made in the math world—like a supercomputer finally solving the Sum of Three Cubes problem that puzzled mathematicians for 65 years—we’re forever crunching ...
If you suspend a Rubik’s Cube near the corner of a room and shine lights at its exposed faces, it will cast square shadows on two walls and the floor. A real-world Rubik’s Cube has a gadget at its ...
The first time I was allowed to travel beyond the Iron Curtain and visit the West was in 1980. I ventured from Hungary to New York for the International Toy Fair, where a puzzle I had invented was ...
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