Name: Anonymous 2007-03-09 1:40 ID:NdJI65fk
okay, I'll assume i'm completely ignorant on this subject, but I have a question that I've never had adequately answered by anyone:
If a superconductor is a material that can carry a current with virtually no resistance (when kept at a low temperature), and an electrical motor (in basic principle) operates by running a current through a coiled wire exposed to magnets, what is the limiting factor in combining the two?
i assume i'll be mocked for lack of basic scientific understanding, but what prevents us from shooting an electrical motor, the coil comprised of a superconductive material, into space, where the latent temperature is (or seemingly would be) much lower than that neccesary to maintaining a superconductive current, and creating a perpetual motion machine? or in even more blantant defiance of the 2nd law of thermodynamics, a generator that would produce more power than it consumed?
if a superconductor can maintain a current at little to no resistance cost, couldn't a superconducting coil run an electric motor indefinately if it required no energy input to cool the superconductor?
have mercy, i assume this can't work, but I want to know why.
If a superconductor is a material that can carry a current with virtually no resistance (when kept at a low temperature), and an electrical motor (in basic principle) operates by running a current through a coiled wire exposed to magnets, what is the limiting factor in combining the two?
i assume i'll be mocked for lack of basic scientific understanding, but what prevents us from shooting an electrical motor, the coil comprised of a superconductive material, into space, where the latent temperature is (or seemingly would be) much lower than that neccesary to maintaining a superconductive current, and creating a perpetual motion machine? or in even more blantant defiance of the 2nd law of thermodynamics, a generator that would produce more power than it consumed?
if a superconductor can maintain a current at little to no resistance cost, couldn't a superconducting coil run an electric motor indefinately if it required no energy input to cool the superconductor?
have mercy, i assume this can't work, but I want to know why.