1Q40.30 - Rotating stool and bike wheel
- Description
This demonstration shows the conservation of angular momentum, since the excess of momentum created by “reversing” the rotation of the wheel is transferred to the person on the stool.
- Equipment
- Heavy bike wheel
- Office chair / swiveling stool
- How to assemble and operate
- 1. Spin the wheel up as fast as possible
- 2. Hold it horizontally
- 3. Sit down on the chair/stool
- 4. Flip the wheel and observe that you get some angular momentum around the axis of the stool
