15:13
Adam Savage vs The "Perpetual Motion" Machine!
8:31
Mind-Bending Effect of Ferrofluid on a Superconductor
9:58
This Ancient Technology Makes Things Spin Really Fast!
8:17
Most Impressive Perpetual Motion Machines!
15:35
Will this toy engine work at full size? (yes)
17:57
Gearless Magnet Bike
9:26
You can't hide the batteries when it's transparent!
16:06