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Motionless electromagnetic generator


The history of perpetual motion machines dates back to the Middle Ages. For millennia, it was not clear whether perpetual motion devices were possible or not, but modern theories of thermodynamics have shown that they are impossible. Despite this, many attempts have been made to construct such machines, continuing into modern times. Modern designers and proponents sometimes use other terms, such as "overunity", to describe their inventions.

There are some unsourced claims that a perpetual motion machine called the "magic wheel" (a wheel spinning on its axle powered by lodestones) appeared in 8th-century Bavaria. This historical claim appears to be unsubstantiated though often repeated.

Early designs of perpetual motion machines were done by Indian mathematicianastronomer Bhaskara II, who described a wheel (Bhāskara's wheel) that he claimed would run forever.

A drawing of a perpetual motion machine appeared in the sketchbook of Villard de Honnecourt, a 13th-century French master mason and architect. The sketchbook was concerned with mechanics and architecture. Following the example of Villard, Peter of Maricourt designed a magnetic globe which, if it were mounted without friction parallel to the celestial axis, would rotate once a day. It was intended to serve as an automatic armillary sphere.

Leonardo da Vinci made a number of drawings of devices he hoped would make free energy. Leonardo da Vinci was generally against such devices, but drew and examined numerous overbalanced wheels.

Mark Anthony Zimara, a 16th-century Italian scholar, proposed a self-blowing windmill.

Various scholars in this period investigated the topic. In 1607 Cornelius Drebbel in "Wonder-vondt van de eeuwighe bewegingh" dedicated a Perpetuum motion machine to James I of England. It was described by Heinrich Hiesserle von Chodaw in 1621.Robert Boyle devised the "perpetual vase" ("perpetual goblet" or "hydrostatic paradox") which was discussed by Denis Papin in the Philosophical Transactions for 1685.Johann Bernoulli proposed a fluid energy machine. In 1686, Georg Andreas Böckler, designed a "self operating" self-powered water mill and several perpetual motion machines using balls using variants of Archimedes' screws. In 1712, Johann Bessler (Orffyreus), investigated 300 different perpetual motion models and claimed he had the secret of perpetual motion.


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