Smithson Tennant died in 1815.
Smithson Tennant was born in 1761.
Smithson Tennant (in 1803) discovered and first isolated osmium.
A person in London named Smithson Tennant discovered Osmium.
It was discovered in 1803 by Smithson Tennant and William Hyde Wollaston in London, England.
Forrest Smithson died in 1962.
Gerald Smithson died in 1970.
Alison Smithson died in 1993.
Harriet Smithson died in 1854.
Smithson Tennant is most famous for his discovery of the elements iridium and osmium, which he found in the residues from the solution of platinum ores in 1803. He also contributed to the proof of the identity of diamond and charcoal.
Robert Smithson died on 1973-07-20.
Gilbert Smithson Adair died in 1979.
Iridium was discovered in 1803 among insoluble impurities in natural platinum. Smithson Tennant, the primary discoverer, named the iridium for the goddess Iris, personification of the rainbow, because of the striking and diverse colors of its salts.