The Rubik's Cube dates to my childhood, when it was for leaving on a desk to be fiddled with — or, for a select few strange birds, for actually solving, sometimes very quickly. At that time, knowing ...

The simple Rubik's Cube is a harder problem than most people realize. Using the currently provided best algorithm for solving the cube, for example, would take the computer you're reading this on now ...

A carpenter, working with a buzz saw, wishes to cut a wooden cube, three inches on a side, into 27 one-inch cubes. This can be easily done by making six cuts through the cube, keeping the pieces ...

An engineer noted for his ability to visualize three-dimensional structure was having coffee and doughnuts. Before he dropped a sugar cube into his cup, he placed the cube on the table and thought, ...