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Robert Hare

Robert Hare

H408/0373

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52.7 MB (6.4 MB compressed)

3812 x 4831 pixels

32.3 x 40.9 cm ⏐ 12.7 x 16.1 in (300dpi)

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Credit

SCIENCE PHOTO LIBRARY SCIENCE PHOTO LIBRARY

Caption

Robert Hare. Portrait of Robert Hare, American chemist (1781-1858). In 1801, at the age of 20, Hare invented the oxy-hydrogen blowpipe, which achieved a temperature high enough to boil platinum (4170 degrees Celsius). He attained a high reputation as a chemist, and was responsible for the invention of the calorimeter and a hydrostatic balance. He also isolated boron and silicon. He held the post of professor of chemistry at the University of Pennsylvania from 1818 to 1847.

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