I threw some iron filings on a paper, and brought them near the communicating wire, when immediately they were attracted by the wire, and adhered to it in considerable quantities, forming a mass round it ten or twelve times the thickness of the wire:... Treatises on Electricity, Galvanism, Magnetism, and Electro-magnetism - Page 53 by Peter Mark Roget - 1832 - 316 pages Full view -
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