Topic
Tesla's Egg of Columbus.
device to help explain alternating current induction motors
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About Tesla's Egg of Columbus
Tesla's Egg of Columbus was a device exhibited in the Westinghouse Electric display at the 1893 Chicago World's Columbian Exposition to explain the rotating magnetic field that drove the new alternating current induction motors designed by inventor Nikola Tesla by using that magnetic field to spin a copper egg on end.
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