Take a look at this video:
It shows a machine that a Norwegian artist built. It seemingly keeps going forever. They filmed it over 3 days and it kept going at the same time.
Can someone analyze the energy losses in this machine?
I'm seeing several losses at the moment:
- The ball is losing energy due to friction while going around the track.
- The pendulums are losing energy due to air friction.
What other sources of energy losses can you notice?