Video duration: 69 seconds
Global video hits: 35605
I've been made the Rubber Band Heat Engine, which is described by Richard Feynman in his book. As the rubber bands are heated by the lump, they contract, moving the center of mass away from the center of rotation. This causes the engine to rotate!
Video duration: 146 seconds
Global video hits: 2065
Beta negative and positron decay alter the nature of the atom. The video explains the changes including the change in the quark balance in the nucleon.
