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electromagnetism |
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electromagnetism (i·lekˈ·trō·magˑ·n  ·ti·zm),n one of nature's four forces; the electromagnetic force is pervasive, effectual at subatomic distances (the arena where weak and strong nuclear forces are of exceptionally short range) and at astronomical distances (the arena where gravitational forces are significant). electromagnetism magnetism developed by an electric current. |
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Nobody in the 19th century realized that James Clerk Maxwell's electromagnetism equations eventually would produce television. 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. 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. |
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electromagnetism
