Johann Gottlieb Friedrich von Bohnenberger
Johann Gottlieb Friedrich von Bohnenberger (15 June 1765 – 19 April 1831) was a German astronomer born at Simmozheim, Württemberg. He studied at the University of Tübingen. In 1798, he was appointed professor of mathematics and astronomy at the University.
- Anleitung zur geographischen Ortsbestimmung (Guide to geographic locations), 1795
- Astronomie (Astronomy), 1811
- Anfangsgründe der höhern Analysis (Initial reasons of higher analysis), 1812.
In 1817, he systematically explained the design and use of a gyroscope apparatus which he called simply a “Machine.” Several examples of the 'Machine' were constructed by J.W.G. Buzengeiger of Tübingen. Johann Friedrich Benzenberg had already mentioned Bohnenberger's invention (describing it at length) in several letters beginning in 1810. 
Bohnenberger died at Tübingen.
- Wagner, Jörg Friedrich and Andor Trierenberg (December 2010). "The Origin of the Gyroscope: The Machine of Bohnenberger" (PDF). Researchgate. Retrieved 18 October 2018.
- Bohnenberger's apparatus (gyroscope)
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