Origin of perpetual motion
Examples from the Web for perpetual motion
Historical Examples of perpetual motion
Closely associated with his book one also finds texts dealing with perpetual-motion devices, which we shall consider later.On the Origin of Clockwork, Perpetual Motion Devices, and the Compass
Derek J. de Solla Price
His cottage was quite a curiosity-shop of models of engines, self-acting planes, and perpetual-motion machines.Lives of the Engineers
This is what a perpetual-motion machine would be if such a machine were possible.The Story of Great Inventions
Elmer Ellsworth Burns
But we give the description in the language of the inventor, as a fair type of this class of perpetual-motion machines.
Many inventors of perpetual-motion machines offer their poverty as an excuse for not making a model or working machine.