File:Nikola Tesla's Egg of Columbus at 1893 Chicago Columbian Exposition World's Fair.png

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Nikola Tesla's electric motor demonstration at the1893 Chicago Columbian Exposition called the "Egg of Columbus"

Summary[edit]

Description
English: Nikola Tesla's "Egg of Columbus", a device used by the inventor to demonstrate the rotating magnetic field that drove his new alternating current induction motor by using that magnetic field to spin a copper egg on end.
Date
Source https://www.lab-tesla.org/egg.html
Author Unknown authorUnknown author
Camera location41° 46′ 58.8″ N, 87° 34′ 48″ W Kartographer map based on OpenStreetMap.View this and other nearby images on: OpenStreetMapinfo

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Licensing[edit]

Public domain
This work is in the public domain in the United States because it was published (or registered with the U.S. Copyright Office) before January 1, 1929.
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Note: This tag should not be used for sound recordings.PD-1923Public domain in the United States//commons.wikimedia.org/wiki/File:Nikola_Tesla%27s_Egg_of_Columbus_at_1893_Chicago_Columbian_Exposition_World%27s_Fair.png

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current02:52, 27 March 2020Thumbnail for version as of 02:52, 27 March 20201,800 × 1,445 (1.35 MB)Fountains of Bryn Mawr (talk | contribs)Uploaded a work by unknown from https://www.lab-tesla.org/egg.html with UploadWizard

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