This looks like fun: make your own homopolar motor made from only a battery, a magnet and a copper wire!
See it in action: Link (embedded YouTube) | More info at Dangerously Fun | Homopolar Motor in Wikipedia
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This looks like fun: make your own homopolar motor made from only a battery, a magnet and a copper wire!
See it in action: Link (embedded YouTube) | More info at Dangerously Fun | Homopolar Motor in Wikipedia
So I guess a homopolar is a gay person who has bipolar disorder.
//but now after admitting it, I feel kind of dirty.