A piece of carved wood will reverse its direction of spin only when spun in one direction.
A nice explanation can be found here https://vimeo.com/93659724
Location: Rattleback B2-3
A piece of carved wood will reverse its direction of spin only when spun in one direction.
A nice explanation can be found here https://vimeo.com/93659724
Location: Rattleback B2-3