"Iron which is brought near a spiral of copper wire, traversed by an electrical current, becomes magnetic, and then attracts other pieces of iron, or a suitably placed steel magnet"

- Hermann von Helmholtz

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This quote is written / told by Hermann von Helmholtz between August 31, 1821 and September 8, 1894. He/she was a famous Physicist from Germany. The author also have 14 other quotes. Go to author profile