Erhard Weigel

Erhard Weigel

Erhard Weigel
Born (1625-12-16)16 December 1625
Weiden in der Oberpfalz
Died 20 March 1699(1699-03-20) (aged 73)
Nationality German
Fields Mathematician, astronomer and philosopher
Institutions University of Jena
Alma mater University of Leipzig
(MA, 1650; Dr.phil.hab. 1652)[1]
  • De ascensionibus et descensionibus astronomicis dissertatio (Astronomical dissertation on risings and settings) (1650)
  • Dissertatio Metaphysica Prior (De Existentia); Dissertatio Metaphysica Posterior (De Modo Existentiae, qui dicitur Duratio) (1652)
Academic advisors Philipp Müller
(1650 thesis adv.)
Notable students Gottfried Wilhelm Leibniz[2]

Erhard Weigel (December 16, 1625 – March 21, 1699) was a German mathematician, astronomer and philosopher.


Weigel earned his MA (1650) and his habilitation (1652) from the University of Leipzig. From 1653 until his death he was professor of mathematics at Jena University. He was the teacher of Leibniz in summer 1663,[2] and other notable students. He also worked to make science more widely accessible to the public, and what would today be considered a populariser of science.

He concurred with Jakob Ellrod's "Mittel-Calendar", and with the advocacy of Leibniz and others, that the date of Easter should be based on the astronomical measurement of the spring equinox and the next full moon. He followed Jakob Ellrod to the Imperial Diet in Regensburg to advocate the use of the Mittel-Calendar or New Gregorian calendar.


Through Leibniz, Weigel is the intellectual forefather of a long tradition of mathematicians and mathematical physicists that connects a great number of professionals to this day. The Mathematics Genealogy Project lists more than 50,000 "descendants" of Weigel's, including Lagrange, Euler, Poisson and several Fields Medalists.

The crater Weigel on the Moon is named after him. In 1999 a colloquium was held in Jena on the 300th anniversary of his death.


(Source: Erhard Weigel Gesellschaft)

See also


  1. "Erhard-Weigel-Gesellschaft: Biographie Weigels". Retrieved 2016-11-02.
  2. 1 2 Richard T. W. Arthur, 2014. Leibniz. John Wiley & Sons. p. 16.


External links

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