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27.1 MB (4.7 MB compressed)
2469 x 3834 pixels
20.8 x 32.5 cm ⏐ 8.2 x 12.8 in (300dpi)
COLLECTION ABECASIS / SCIENCE PHOTO LIBRARY COLLECTION ABECASIS / SCIENCE PHOTO LIBRARY
Alexander von Humboldt (1769-1859). 1864 illustration of the German naturalist and geographer Friedrich Wilhelm Heinrich Alexander von Humboldt. At 27, Humboldt inherited enough money to plan an expedition with botanist Aime Bonpland to South America. They mapped over 2700 kilometres of the Orinoco River, catalogued huge tracts of flora and fauna and discovered and measured the Peruvian Current (now called the Humboldt Current). Returning to Europe, he studied the meteorology of Russia and drew the first isotherm map.
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