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Astronomers
borndied
1801, Oct 121870, Sep 14
a German physicist, inventor, engineer and astronomer. In 1839, Steinheil used silver chloride and a cardboard camera to make pictures in negative from the Museum of Art and the Munich Frauenkirche, then taking another picture of the negative to get a positive, the actual black and white reproduction of a view on the object. The method was later named the “Steinheil method" and was the first daguerreotype in Germany. In 1854, he founded C. A. Steinheil & Söhne, an optical-astronomical company.
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