The Museum of Hoaxes
hoax archive hoax archive hoax archive hoax archive hoax archive
 
Eras: 0-1699 1700s 1800-1868 1869-1913 1914-1949 1950-1976 1977-1989 1990s 2000s
The Hoax Archive — A collection of the most notorious deceptions throughout history
Perpetual Motion and Free Energy Hoaxes
Redheffer’s Perpetual Motion Machine, 1812. In 1812 a Philadelphia man, Charles Redheffer, claimed to have invented a perpetual motion machine that required no source of energy to run. He built a working model of the machine and applied for funds from the city government to build a larger version. But when inspectors from the city examined it, they realized that Redheffer had simply hidden the power source. To expose Redheffer, they commissioned a local engineer to build a similar machine,... Continue…
Keely Motor Company, 1875. John Worrell Keely founded the Keely Motor Company in 1875 in order to develop and commercialize his invention: a "vibratory generator" that required only a quart of water to generate the equivalent of the power needed to pull a fully-loaded train for over 75 minutes. Following successful demonstrations of this miraculous device in his workshop, investors rushed to give him money, even though the scientific community derided his claims. For... Continue…

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  • All text Copyright © 2014 by Alex Boese, except where otherwise indicated. All rights reserved.