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2Published 1997“...A lodestone is shown to be a magnet with two poles just like a bar magnet by substituting...”
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13“...extraordinary specimen of lodestone, weighing more than 400 pounds, and possessing unusually...”
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14by Mercator, Gerhard, 1512-1594“... as a tall black mountain of lodestone surrounded by four large islands, divided by four inward-flowing...”
Published 1594
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15by Amundsen, Karin Alana“... in the manufacture of iron ordnance and wares, as well as lodestone compasses, helped advance English shipbuilding...”
Published 2019
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16by Lewis, Elizabeth B.“... of the magnetic properties of lodestones and the earliest recorded development and use of the compass...”
Published 2012
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