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Robert Wilhelm
[rob-ert wil-helm;; German roh-bert vil-helm] /ˈrɒb ərt ˈwɪl hɛlm;; German ˈroʊ bɛrt ˈvɪl hɛlm/ (Show IPA), 1811–99, German chemist.
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Robert Wilhelm (ˈroːbɛrt ˈvɪlhɛlm). 1811–99, German chemist who with Kirchhoff developed spectrum analysis and discovered the elements caesium and rubidium. He invented the Bunsen burner and the ice calorimeter
German chemist who with Gustav Kirchhoff developed the technique of spectroscopic analysis, leading to their discovery of the elements cesium and rubidium. Bunsen also invented various kinds of laboratory equipment, although the Bunsen burner itself was probably constructed on an earlier design by Michael Faraday.


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