The nets of a hypercube
The video shows some cubes that roll on a board. They represent the net of a hypercube and the movements of the cubes mark the passage from one net of the hypercube to another one. Squares of the same colour are parallel squares (in the closed hypercube) and the identification of a couple of squares can happen only if the squares have the same colour. You can see also the picture of all the 261 nets of the hypercube, and another interactive animation. For further information, see learn more.
video di Gian Marco Todesco