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Johannes Hartmann (Amberg, 14 January 1568 – Kassel, 7 December 1631) was a German chemist. In 1609, he became the first Professor of Chemistry at the University of Marburg . His teaching dealt mainly with pharmaceuticals .
Johannes Franz Hartmann (1865 – 1936) Interstellar material includes gas (that is, atoms and molecules), microscopic dust grains, and possibly larger objects. Atoms of interstellar gas were discovered in 1904 when German astronomer Johannes Hartmann detected their absorption lines.
Producer. IMDbPro Starmeter See rank. Johannes Hartmann is known for Mad Heidi (2022), Halbschlaf (2011) and Deadlocked (2013). More at IMDbPro.
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Johannes Franz Hartmann (11 January 1865 – 13 September 1936) was a German physicist and astronomer. In 1904, while studying the spectroscopy of Delta Orionis he noticed that most of the spectrum had a shift, except the calcium lines, which he interpreted as indicating the presence of interstellar medium. [2] [3]
Johannes Hartmann. 1568-1631. German chemist and physician important for having introduced medical and pharmaceutical chemistry into the university curriculum. In 1609 at the University of Marburg Hartmann initiated lectures and laboratory instruction on the chemical preparation of medicines.
Johannes Franz Hartmann. (1865—1936) Quick Reference. (1865–1936) German astronomer. Hartmann was born the son of a merchant in Erfurt, in Germany. He was educated at the universities of Tübingen, Berlin, and Leipzig where he obtained his PhD in 1891.
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Dec 24, 2016 · German instrumentalist and spectroscopist Johannes Hartmann is remembered for the discovery of “stationary lines” in the spectrum of δ Orionis in 1904, which were soon after interpreted by Vesto Slipher as the discovery of diffuse interstellar material, and for devising the test for accuracy of figures of mirrors and lenses which bears his ...
