The most famous packing problem concerns spheres. In 1611, the astronomer Johannes Kepler proposed that the densest way to ...

A mind bending optical illusion showing a stack of cubes has left viewers baffled — with few able to work out what’s going on. A video shared on YouTube shows the cube art placed on a flat ...

It's inspired by Super Hexagon and the corner of the room Notch was sitting in when he thought of it. I'm terrible at it, because fingers. Of course, Notch's entry isn't the only game inspired by ...