Algodoo

The physics of seizure bricks
Want to make your own?
Make the thing exactly like this
Put a chain on the gear
Make the gear go super fast and strong
Get the drag tool into infinity
Follow the gear all things
(Gravity follows orientation, Follow, and Track Rotation)
Drag the gear up so it will pull the chain
WHOOSH!
Then pause when the ground is facing up (0')
Stop following the gear
This is what happens