William Watson's electrical machine

William Watson's electrical machine

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Credit: Universal History Archive/UIG/SCIENCE PHOTO LIBRARY

Caption: William Watson's (1715-1787) glass-globe electrical machine generating a charge which is passed through the man standing on an insulating block of resin. A spark was created as the man's fingers were touched by an uninsulated person. Copperplate engraving 1797.

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Keywords: 1715-1787, 1797, block, british, charge, copperplate, created, electrical, electricity, english, engraving, fingers, generating, glass-globe, insulating, machine, man, passed, person, resin, science, spark, standing, through, touched, uninsulated, watson, william

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