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发表于 2025-3-28 15:40:19
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发表于 2025-3-28 20:36:04
Deepesh Machiwal,Madan Kumar Jha the Hindus, dating back to about 1000 BC, in the Platonic dialogues of Socrates, and in the ancient literature of the Chinese. Scientific studies of magnetism began with William Gilbert of Colchester (1540–1603); he showed that the earth itself behaves like a magnet, that iron ceases to be attracte
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发表于 2025-3-28 23:32:08
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发表于 2025-3-29 04:10:43
Deepesh Machiwal,Madan Kumar Jha permanent magnets and advice on how she could produce strong magnetic fields, in which she wanted to grow chick heart tissues in vitro. Her results,. the deformation and retardation of the development of the argyrophil fiber system and the appearance of a large number of multinucleated giant cells,