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Nov28-11, 08:34 PM
zoobyshoe's Avatar
P: 5,641
Quote Quote by hometown23 View Post
I've read a little about thermoelectricity where if a current flows in a circuit consisting of two different conductors then one of the junctions is heated and the other is cooled.
This works the other way round as well. Heating the junction will cause current to flow.

There's no reason the heat couldn't be created by friction and the current generated used to operate a separate heater.

I guess the trouble is that you'd be wearing away your junction in direct proportion to how much you used it to generate current.