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The Lodestones
This web page, authored and curated by David P. Stern, describes the causes of naturally occurring magnetite magnets, or 'lodestones.' It explains theories about the function of lightening and heat in such processes, and the possibility of magnetized iron. It is part of a larger work, "The Great Magnet, the Earth", that outlines to history and the study of magnetic fields and the earth's magnetism....
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