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| View Original: | Siberian lodestone with armature, photo-2.JPG (1938x3315) | |||
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| Keywords: Siberian lodestone with armature, photo-2.JPG Siberian lodestone with armature Very large piece of magnetite obtained in 1810 from Siberia for Martinus van Marus by G F Parrot professor of physics at Dorpat modern Tartu Estonia The magnetite is armed with iron and is encased in copper Van Marum's inentory notes that it will lift '200 ponden' own 2011-12-23 13 49 32 AlfvanBeem Cc-zero Instruments in the Teylers Museum Culture photographed by Alf van Beem Lodestones | ||||
