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Joseph Ritter Von Fraunhofer. German Physicist. Known For Discovering The Dark A ...

Joseph Ritter Von Fraunhofer. German Physicist. Known For Discovering The Dark A ...

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Description: Joseph Ritter von Fraunhofer. German physicist. Known for discovering the dark absorption lines known as Fraunhofer lines in the Sun’s spectrum, and for making excellent optical glass and achromatic telescope objectives. 6 March 1787 – 7 June 1826.

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