A Perpetual Motion Machine of the Third Kind is a device which has a component that can keep moving forever. An example is a superconducting ring in which an electric current can flow indefinitely once started. Other examples are the planets and stars that move throughout the universe and will continue to move until they are stopped by some natural cause. This kind of device is clearly not impossible.
Posted: Andy Bell on 17 February 2004
15 February 2004 10:37 pm