HOW TO – Make a homopolar motor

14 thoughts on “HOW TO – Make a homopolar motor”

1. aolshove says:

   April 20th, 2007 at 3:11 pm

   That’s very cool. Thanks!!

2. gear_head says:

   April 20th, 2007 at 7:19 pm

   Excellent! My son is going to love this, thanks for posting.

3. +anion says:

   April 20th, 2007 at 8:37 pm

   here’s one that can move around.
   http://www.grand-illusions.com/articles/homopolar_roller/

4. Narsil says:

   April 21st, 2007 at 7:08 am

   Any idea how long this runs? Minutes? Hours? A day or two?
   Also, I believe you can use any magnet in this case, as I have tried it with others and it worked fine. Rare-earth magnets seem to be the “in” thing.

   Very cool nonetheless.

5. MrPhelps says:

   April 21st, 2007 at 11:09 am

   Considering the battery is practically short-cicuited it won’t last very long, maybe a few minutes.

6. Bike says:

   December 14th, 2007 at 11:34 am

   What i`ve done is a homopolar motor without neodymium magnet

   http://www.metacafe.com/watch/966291/homopolar_motor_without_neodymium_magnet/

7. Anonymous says:

   May 7th, 2008 at 7:51 pm

   i try with a AA and a C and i have the copper wire with an IMAN magnets

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