Jules Andrade

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Jules Andrade (born September 4, 1857 in Paris , † February 25, 1933 in Brighton ) was a French mathematician , physicist and watchmaker .

Life

After studying at the École polytechnique and military service in the artillery, he taught at the University of Rennes . While he was teaching at the University of Montpellier , he took part from June 3, 1899 as an expert in the defense of Alfred Dreyfus ( Dreyfus affair ).

He taught for 26 years as a professor at the Institut de Chronométrie at the University of Besançon . Jules Andrade did research in the field of mechanical clocks on friction , synchronization, disturbances of isochronism , compensation spirals , compensation , regulation and cylindrical spiral springs . In 1913 he received a patent for a chronometer - regulator with cylindrical spirals without end curves.

He was a lecturer at the International Congress of Mathematicians in Zurich in 1897 (with a lecture on non-Euclidean statics), in 1904 in Heidelberg (lecture on the movement of a body on spherical trajectories) and in Toronto in 1924. In 1921 he became a corresponding member of the Académie des sciences .

Fonts

  • Leçons de Mécanique Physique. Société d'éditions scientifiques, Paris 1898, ( digitized ).
  • Chronométrie (= Encyclopédie scientifique. Bibliothèque de mécanique appliquée et génie. 7, ISSN  1955-2483 ). O. Doin, Paris 1908, ( digitized ).
  • La geometry naturelle en deux livres. E. Cornély & Cie, Paris 1908, (only volume 1 published?).
  • Le mouvement. Mesures de l'étendue et mesures du temps (= Bibliothèque scientifique internationale. 112, ISSN  1762-5793 ). F. Alcan, Paris 1911.
  • Les organes réglants des chronomètres. E. Magron, Besançon et al. 1922.
  • Horlogerie et chronométrie (= Encyclopédie de mécanique appliquée. 8, ISSN  1778-753X ). JB Baillière et fils, Paris 1924.

Individual evidence

  1. ↑ Léon Lecornu: Notice nécrologique sur Jules Andrade. In: Comptes rendus hebdomadaires des séances de l'Académie des sciences. Volume 196, 1933, pp. 821-822 .
  2. ↑ GA Berner: Illustrated specialist dictionary of watchmaking , keyword Andrade, Jules . Retrieved February 8, 2012.
  3. ↑ Jules Andrade on Watch-Wiki.org . Retrieved February 8, 2012.
  4. ^ List of members since 1666: letter A. Académie des sciences, accessed on February 7, 2020 (French).
personal data
SURNAME Andrade, Jules
BRIEF DESCRIPTION French mathematician, physicist and watchmaker
DATE OF BIRTH September 4, 1857
PLACE OF BIRTH Paris
DATE OF DEATH February 25, 1933
Place of death Brighton