Quote:
Originally Posted by ryan2006
O.K. Here it goes! A magnetic spherical ball that has an outer thickness and it hollow on the inside. Two options from there. One, a magnetic liquid solution inside the hollow set into orbit around the earth. Second option, magnetic balls inside the hollow. Conductors run through the outer shell. so that as it orbits it is creating electromagnetic energy.
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I'll try to explain why why you can't use movement and magnetics to produce continual energy.
To produce electrical energy from motion and magnets is done by having a magnet moving wrt to a conductor. The change in the magnetic field felt by the conductor induces a current in the conductor, thus your electrical energy.
The fly in the ointment is the fact that when current flows through a conductor, the conductor itself produces its own magnetic field and becomes an electromagnet itself, and the polarity of this magnetic field will be such that it will oppose the motion of the magnet with respect to the conductor.
IOW, the magnetic force acting between the conductor and magnet will act to reduce the motion between the two, eventually bringing it to a halt and stopping any energy production. The total amount of energy you can extract from such a system is only equal to the amount of kinetic energy the system started with due to the relative. It doesn't create any energy, it only converts one form of energy to another.
Secondly, I fail to see how your system would generate any electrical energy at all. Again, you need a magnetic source
moving with respect to a conductor to induce electric current. With your scheme, the magnetic source and conductor are orbiting together and are not moving with respect to each other.
One way of generating electrical energy with an orbiting object is by interacting with the Earth's own magnetic field while orbiting. The drawback, of course is that you will get the same force feedback and the satellite will lose orbital energy in exchange and fall to Earth. How fast it falls depends on how much electrical energy it generates. And you will never get more energy out than you expended to put the satellite into orbit in the first place. The only way such a system would be useful is if used for a satellite with a designed limited lifetime, and if the system was lighter/cheaper than a standard power source.