Ord-Hume, Arthur W. J. G.
Text: Perpetual Motion: The history of an obsession. Historical perspective taking the view that the perpetual motion seeker was, in most cases, a dedicated scientist not by his own ignorance, but by the limitations of scientific and mechanical knowledge of his time. New York: St. Martin's Press, 1980. 235 p.
See Also: perpetual motion, free energy, history, free energy devices.
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