HOW TO – Make a homopolar motor

Technology
HOW TO – Make a homopolar motor

Homopolarmotor

Here’s how to make a homopolar motor extremely simple and TONS of fun – Link.

14 thoughts on “HOW TO – Make a homopolar motor

  1. aolshove says:

    That’s very cool. Thanks!!

  2. gear_head says:

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

  3. Narsil says:

    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.

  4. MrPhelps says:

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

  5. Bike says:

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

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

  6. Anonymous says:

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

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