Photo Researchers ftp March 2011
EN_00958297_0101
William Wollaston (1766-1828), English chemist. Wollaston is known for his discovery of palladium and rhodium. In 1800, having given up a medical practice, Wollaston earned a living from selling platinum. While experimenting with platinum ore, he discovered the elements palladium (1802) and rhodium (1804). He also pioneered powder metallurgy, where metal powder is molded into solid pieces using heat and pressure, and invented the reflecting goniometer for measuring crystal angles.
2011-03-24
EAST NEWS
Science Source
New York Public Library Picture
BQ0138
2,06MB
26cm x 33cm przy 300dpi
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