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Science, engineering, and mathematics — biology, chemistry, physics, astronomy, earth sciences, social sciences, and technology research. A curated gateway to academic and professional scientific resources.
57129 resources
Overview of a machine designed by Johann Bessler in 1712, that underwent numerous tests and passed rigorous inspections.
Information on the life and works of Orffyreus (1680-1745). Eminent scientists who examined his perpetual motion machines considered them a genuine work of extraordinary ingenuity.
A site about Johann Bessler and his inventions, including the perpetual motion machines.
Demonstrations and examinations of claimed perpetual motion energy machines designed and constructed by Johann Bessler.