[海外直订The Letter of Petrus Peregrinus on the Magnet, A.D. 1269 佩特罗斯·佩雷格里努斯在磁石上的信，公元1269年]
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[The Letter of Petrus Peregrinus on the Magnet, A.D. 1269]
[作者: Arnold, Brother]
[出版社: Sutton Press (2008年08月24日)]
[页数: 60页]
[语种: 英文]
ISBN: 9781443711302
[条形码: 9781443711302]
[商品重量: 90.00g]
[商品尺寸: 21.59cm * 13.97cm * 0.36cm]
[编辑推荐]
[The Letter Of Petrus Peregrinus On The Magnet, A.D. 1269. INTRODUCTORY. The magnetic lore of classic antiquity was scanty indeed, being limited to the attraction which the lodestone manifests for iron. Lucretius 99-55 B. C., however, in his poetical dissertation on the magnet, contained in Arrtura, Book VI. recognizes magnetic repulsion, magnetic induction, and to some extent the magnetic field with its lines of force, for in verse 40 he writes Oft from the magnet, too, the steel recedes, Repelled by turns and re-attracted close...]
