robert bunsen
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robert bunsen |
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| navigate by keyword : bunsen celebrity chemist draw drawing editorial face figure german history man old people pioneer portrait robert scientist sketch |
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| Robert Bunsen (1811 - 1899) was a German chemist. He investigated emission spectra of heated elements, and discovered caesium (in 1860) and rubidium (in 1861) with Gustav Kirchhoff.Picture from an 100 years old encyclopedia book. |
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Stockphotos.ro (c) 2026. All stock photos are provided by Dreamstime and are copyrighted by their respective owners. |
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