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Robert Bunsen

Person
Robert Bunsen
Universitätsbibliothek Heidelberg / CC BY-SA 4.0 · resizedfile
Born
Robert Bunsen refined the clean, hot gas burner that bears his name with his technician Peter Desaga, and around 1859 he and the physicist Gustav Kirchhoff built the spectroscope to read the coloured lines each element gives off when heated. The method found the new elements caesium and rubidium, and the same principle lets astronomers work out what stars are made of.
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