rattleback physics toy
rattleback
this thing, your spin it, and it spins in reverse direction. Due to built up of instability, the rocking.
- https://youtu.be/11NHjiEYnI0
- 20 rattlebacks.
euler's disk
- https://youtu.be/ug2bKCG4gZY
- Euler's Disk
- Aug 6, 2009
- Educational Innovations