Stephen A. Lawrence <sa...@pobox.com> wrote:
> I need to point out > that a solenoid with movable core which is holding a lever in position > -- say, for instance, holding the little man's arms in position (the > little man is a robot in that case) is also *NOT* "doing work" despite > the fact that it's getting hot. > I used that example too, in the discussion with Correa. > > The solenoid in the robot, and the muscles in a human, DISSIPATE > ENERGY. That's for sure! That's what I meant. Anyway, the electroscope is not dissipating energy. - Jed