Magnets, how do they work? Although the quantum mechanics behind ferromagnetism are by no means easy, a few simple experiments can give you a good grasp of how magnets attract and repel each other, ...
Click to open image viewer. Image is of Henry's Albany magnet created in the 1820s, Smithsonian Institution Archives, negative number 39,040. Smithsonian Miscellaneous Collections, vol. 21, no. 356, ...
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