University of Miami Physicist Develops Spin Battery

Thanks. Really interesting stuff.

I am puzzled, though, by a schematic symbol. I'd expect that, to show a very simplified circuit, you might show a battery (which they are showing pictorially), a load (typically reduced to a simple resistor symbol) and perhaps an ammeter. But in this circuit, there is the spin battery (pictorial), apparently feeding an adjustable battery (whatever that might be) and an ammeter. I suppose it could be an adjustable capacitor (although I'd expect the "plates" to be equal length), but that would mean that there should be no flow through the circuit. Is the symbol supposed to indicate an adjustable power supply, with which they are charging the battery?

I have to say that I cringed when the article mentioned the energy in magnets. The over-unity crowd will love this. Their magnet motors will cause spintronics effects, and spinning the motor one way will charge the spin battery (actually an array of such batteries). Spinning the opposite way will discharge the battery, powering any external device. By quickly moving the rotor one way and then the other, we create AC. Then by increasing the frequency of reversals, we can reduce the amplitude of the required rotor motions. Current is thus maintained by increasingly small but more frequent oscillations. Following this trend to infinitely high frequency and zero oscillation, we achieve a magnet motor which does not need to move at all to produce current.

Wait... there's a knock on my door. There are two men dressed in black, apparently some sort of government officials. It looks as if they want to