1Q50.15 Euler's Disk

Demonstrate precession by spinning disc on concave plate. The disk slowly falls over. It thus also demonstrates conversion of gravitational potential energy to rotational kinetic enegy. The frequency of the sound you hear increases just before disk comes to halt.

Picture: Not Yet Available

Setup Requirements: Off the shelf.

Equations: Conservation of mechanical energy. Conservation of angular momentum.

Safety Issues: Avoid dropping heavy disk on plate.