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electromagnetism

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electromagnetism

In physics, the properties and interactions of magnetism and electric currents. A current flowing through a conductor produces a magnetic field around the conductor; a varying magnetic field interacting with a conductor produces a current in the conductor. This is known as the electromagnetic effect.
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Nobody in the 19th century realized that James Clerk Maxwell's electromagnetism equations eventually would produce television.
No small matter: is theoretical physics stuck--and should you worry? by Silber, Kenneth / Reason
But there was good reason for the clandestine measures: By late 1943, Oak Ridge's Y-12 plant was using electromagnetism to create the highly enriched uranium that would be used in the "Little Boy" atomic bomb dropped on Hiroshima in 1945, helping to bring the war to an end.
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I find magnetism, or electromagnetism, contextually compelling as the 'invisible' or immaterial basis of computer technology and of every kind of information recording and transfer.
Herwig Weiser: Galerie Lisa Ruyter by Vogel, Sabine B. / Artforum International
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