经常下载主要类别阅读书单中文电子书 AI阅读

经常下载主要类别

Books about Magnetism -- Early works to 1800 (sorted by popularity)

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On the magnet, magnetick bodies also, and on the great magnet the earth 672 downloads
The Letter of Petrus Peregrinus on the Magnet, A.D. 1269 active 13th century de Maricourt Pierre 263 downloads
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