Charles Redheffer
American inventor who claimed to have invented a perpetual motion machine / From Wikipedia, the free encyclopedia
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Charles Redheffer was an American inventor who claimed to have invented a perpetual motion machine. First appearing in Philadelphia, Redheffer exhibited his machine to the public, charging high prices for viewing. When he applied to the government for more money, a group of inspectors were sent to examine the machine. It was discovered the machine was actually powered by a device Redheffer claimed was powered by the machine.
Redheffer moved to New York City and set up a similar scam after rebuilding his machine. However, an engineer detected that it was a fake by listening to its unsteady motions at an exhibition. He discovered that the machine was operated by a man using a crank in a room on the floor above. Redheffer returned to Philadelphia. He later claimed to have created another machine, but refused to demonstrate it to anyone. He managed to get a patent for his machine in 1820, but after this his fate is unknown.