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About Friedrich von Hahn
Friedrich II. Graf von Hahn was a German nobleman, a philosopher and astronomer born in Neuhaus, Duchy of Holstein, Holy Roman Empire. He suggested the Doppler effect before Doppler.
Everything about Friedrich von Hahn →- Occupation
- astronomer, philosopher, mathematician, lord of the manor
- Citizenship
- Germany
- Born
- July 27, 1742
- Died
- October 9, 1805