by Kingcoal » Mon 21 Jul 2008, 14:55:18
All electric motors are magnetic; that's how they work. Take two bar magnets and push the common poles together (north or south) and they resist contacting each other. That is basically how all electric motors work. There are different types, but they all use opposing magnetic fields which are either switched on and off in a rotating fashion or in the case of an induction motor, rotated around to produce kinetic energy. Electric motors are very efficient, most in excess of 90% and super conducting designs almost 100%, though those need to be cooled to a very low temperature in order to superconduct.
First off, this guy doesn't explain what is happening in any terminology that I understand. Electric motors don't have "injectors" or "crankshafts." Even though electric motors are very efficient, they can never exceed 100% and in reality will always fall well short of that. The reason is this pesky principle called the second law of thermodynamics which says basically, in layman's terms, that perpetual motion machines are unequivocally impossible in all cases of a closed system. You can store potential energy in a fly wheel, but that energy has to be first put into the flywheel. Any drag put on a flywheel slows it down and the energy is not replaced magically, it has to come from somewhere. In the case of an electric motor, it comes from the electric current applied to the terminals.
The laws of thermodynamics are the only real "settled science" there is. Before his death, Einstein remarked in a letter to a fellow that "the only thing that I am absolutely certain of, the only thing, that is; is that the Universe forbids perpetual motion machines. Or something like that.
Perpetual motion machines are the most popular types of inventions there are. The patent office will automatically reject anything that claims perpetual motion. The problem is that they are fake inventions. Like this one. This guy has a bank of batteries in the trunk that he's not showing.
All of physical science is guided by the laws of thermodynamics. All new theories are put through the wringer of those principles and if they pass, they go on to further review. In order to make a perpetual motion machine and explain it, you would need to first rewrite the laws of physics. Matter and energy can't neither be created nor destroyed, only changed in form. In other words converted from one form to the next. Ordered systems (such as a fully charged battery) always progress towards disorder (a less than fully charged battery.) Every process will lose some energy to heat, thus any real world process will never be able to achieve 100% efficiency.
"That's the problem with mercy, kid... It just ain't professional" - Fast Eddie, The Color of Money