Home made motor with video.

[Bluepete]

I found a video of a Homopolar motor. The kids loved it, so we made one!

I haven't looked at how they work, but they just shouldn't! It's just a few magnets, a battery and some copper wire.

id21SSSEGuc

Then we made a smaller, faster version.

9oweLGpveOA

If anyone can explain how it works, please feel free.

Pete ;)

[Geodude]

Thats cooool :) i want to play, now where to find some little magnets?

[timwilky]

All down to stuff like flemming's left hand rule of current flowing in a magnetic field etc. (I Think)

[andrewsmith]

this may help

http://en.wikipedia.org/wiki/Homopolar_motor

edit: Techno geeks explanation
http://www.physicsforums.com/showthread.php?t=192158

[DarrenSV650S]

#runs off to garage#

[Berlin]

Next make a reall big Levitation Homopolar motor as a ride in the garden! :) (http://www.youtube.com/watch?v=2hHfkK4iGBQ&feature=related)

[DarrenSV650S]

:D made one

It's cool lol. I made it out of solderwire so it's really lightweight but it went so fast it kept falling off, so made some "arms" to guide it round the battery