the electromagnet was invented in england by william sturgeon, who took an iron rod and bent it into the shape of a horseshoe. this "horseshoe" was coated with vanish and a layer of copper wire was wrapped around it. an electric current was passed through the wire, thus making the rod magnetic. the rod was now, because of magnetic attraction, able to support nine pounds of iron. in the us, a scientist named joseph henry improved on sturgeon

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