Johann Andreas Segner

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Johann Andreas Segner
Johann Andreas Segner's portrait
Johann Andreas Segner's portrait
Born 9 October 1704
Died 5 October 1777
Nationality Carpatho-German
Fields mathematics
Institutions Jena
Göttingen
Halle
Known for Segner-wheel

Johann Andreas Segner (Hungarian: Segner János András; Slovak: Ján Andrej Segner; 9 October 17045 October 1777) was a Carpatho-German mathematician, physicist, and physician. The inventor of the Segner-wheel, Segner was also a professor of the universities of Jena, Göttingen and Halle.

In the 16th century, Segner's ancestors came from Styria to Pressburg (Bratislava)[1] in the Kingdom of Hungary; by the 18th century it was a predominantly German town. He studied at Pressburg, Győr and Debrecen. In 1725 Segner began studying at the University of Jena. In 1729 he received a medical certificate and returned to Pressburg, where he started to work as a physician, as well as in Debrecen. In 1732 he returned to Jena for his master's degree. In 1735 Segner became the first professor of mathematics, a position created for him, at the University of Göttingen. In 1755 he became a professor at Halle, where he established an observatory.

One of the best-known scientists of his age, Segner was a member of the academies of Berlin, London, and Saint Petersburg.

Segner was the first mathematician to demonstrate the sign convention of Descartes. The asteroid 28878 Segner was named after him.

[edit] Notes

  • Kaiser, W; Lengyel Z (Nov. 1974). "[Cooperation in the history of science as illustrated on the example of the Halle-Hungary research on Johann Andreas Segner]". Zeitschrift für die gesamte Hygiene und ihre Grenzgebiete 20 (11): 789-95. PMID 4619524. 
  • Kaiser, W (. 1977). "[Johann Andreas Segner (1704-1777)]". Zahn-, Mund-, und Kieferheilkunde mit Zentralblatt 65 (3): 292-304. PMID 143166. 
  • Vissi, Z (Mar. 1978). "[János András Segner]". Orvosi hetilap 119 (12): 725-6. PMID 345185. 
  • Foregger, R (Sep. 2001). "The rotameter and the waterwheel". Der Anaesthesist 50 (9): 701-8. PMID 11593877.