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  • In October 1859, German physicist Gustav Kirchhoff announced the results of his investigations with chemist Robert Bunsen on the dark lines that interrupt the otherwise continuous solar spectrum.

     

    Essays3 Chemistry

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ID number:245821
Evaluation:
Published: 05.09.2003.
Language: English
Level: Secondary school
Literature: n/a
References: Not used
Extract

In October 1859, German physicist Gustav Kirchhoff announced the results of his investigations with chemist Robert Bunsen on the dark lines that interrupt the otherwise continuous solar spectrum (1). These lines had puzzled practitioners and theorists alike since they were first observed in 1814 by German optician Josef von Fraunhofer (2).
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Sir William Huggins
(1824-1910)
CREDIT: CORBIS
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Now it seemed that Bunsen and Kirchh…

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