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- Q6499460 subject Q17429978.
- Q6499460 subject Q19927483.
- Q6499460 subject Q5470782.
- Q6499460 abstract "Nikola Tesla, at the 1893 World's Columbian Exposition, demonstrated a device he constructed known as the "Egg of Columbus." It was used to demonstrate and explain the principles of the rotating magnetic field model and the induction motor. Tesla's Egg of Columbus performed the feat of Columbus with a copper egg in a rotating magnetic field. The egg spins on its major axis, standing on end due to gyroscopic action.Tesla's device used a toroidal iron core stator on which four electromagnetic coils were wound. The device was powered by a two-phase alternating current source (such as a variable speed alternator) to create the rotating magnetic field. The device operated on 25 to 300 hertz frequency. The ideal operating frequency was described as being between 35 and 40 hertz. Reproductions of the device are displayed at the Nikola Tesla Museum in Belgrade, the Memorial Centre "Nikola Tesla" in Smiljan, the Technical Museum in Zagreb, the Croatian History Museum in Zagreb and in the Ann Arbor Hands-On Museum.".
- Q6499460 thumbnail WorldsFairTeslaPresentation.png?width=300.
- Q6499460 wikiPageExternalLink nikola-tesla-article-teslas-egg-of-columbus.
- Q6499460 wikiPageExternalLink 718-physics-demo-magnetic-motor.
- Q6499460 wikiPageExternalLink tesla.html.
- Q6499460 wikiPageExternalLink teslas-egg-of-columbus.
- Q6499460 wikiPageExternalLink watch?v=aWTXgQ_IdtI.
- Q6499460 wikiPageWikiLink Q11408.
- Q6499460 wikiPageWikiLink Q124164.
- Q6499460 wikiPageWikiLink Q1256476.
- Q6499460 wikiPageWikiLink Q1435.
- Q6499460 wikiPageWikiLink Q17429978.
- Q6499460 wikiPageWikiLink Q190312.
- Q6499460 wikiPageWikiLink Q19927483.
- Q6499460 wikiPageWikiLink Q207450.
- Q6499460 wikiPageWikiLink Q233002.
- Q6499460 wikiPageWikiLink Q2353812.
- Q6499460 wikiPageWikiLink Q2618661.
- Q6499460 wikiPageWikiLink Q285406.
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- Q6499460 wikiPageWikiLink Q3241394.
- Q6499460 wikiPageWikiLink Q367211.
- Q6499460 wikiPageWikiLink Q39369.
- Q6499460 wikiPageWikiLink Q4766219.
- Q6499460 wikiPageWikiLink Q483400.
- Q6499460 wikiPageWikiLink Q5470782.
- Q6499460 wikiPageWikiLink Q58430.
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- Q6499460 wikiPageWikiLink Q9036.
- Q6499460 wikiPageWikiLink Q940354.
- Q6499460 comment "Nikola Tesla, at the 1893 World's Columbian Exposition, demonstrated a device he constructed known as the "Egg of Columbus." It was used to demonstrate and explain the principles of the rotating magnetic field model and the induction motor. Tesla's Egg of Columbus performed the feat of Columbus with a copper egg in a rotating magnetic field.".
- Q6499460 label "Tesla's Egg of Columbus".
- Q6499460 depiction WorldsFairTeslaPresentation.png.