Rubik's Cube was invented in 1974 by Erno Rubik, a lecturer at the Department of Interior Design at the Academy of Applied Arts and Crafts in Budapest, Hungary. He was intersted in geometry, especially 3D forms and their construstion. One day while watching the Danube flow over some smooth pebbles, Rubik got the idea for a cylindrical internal mechanism to allow easy manipulation of his 54-surfaced block.
The above applet is by Lars Petrus, a modification of Karl Hörnell's original Rubik Unbound at Java on the Brain.
