Check out his other vids : http://www.youtube.com/user/gilbondfac
The motor coil is 100 turns of 28 SWG wire, the magnets are 3/4" x 3/8" neodymium magnets.
The generator coil is a solenoid from an electric toaster, it was to release the toast. I don't know how many turns it has!
If there's interest, I'll do an instructable. But this is pretty simple to make.
































Or is the system just using the coil in 1 half of the rotation - i.e. turning it on and off.
Less efficient than using the coil as a rotor and switching current direction every half turn.
You could add a DPDT relay (or even some transistors/FETS?) to the switch the current direction every half turn. The relay would be really noisy and probably not fast enough to be useful, but it'd be fun to try :)
Needs some experimentation - to the bat shed Robin!