Philipp Imsser
Philipp Imser ( 1500 - 1570 ) was a southern German astronomer and from 1531 to 1557 professor at the University of Tübingen . After his teacher Johannes Stöffler (1452–1531) he was the second holder of the chair created in 1507.
After Stöffler's death, he published his work Ephemeridum opus and also took over his reference library, some of which are now in the Badische Landesbibliothek Karlsruhe. When Imser initially did not want to join the Reformation , he had to interrupt his teaching activities for two years in 1535.
He then dealt with the planetary theory Novae theoreticae planetarum of the first Vienna astronomy professor Georg Peuerbach (1423-1461), on which he published a commentary in 1556 together with Erasmus Oswald Schreckenfuchs . In 1557 he gave up his professorship and devoted himself to building a representative art clock and astronomical clock for the Elector Ottheinrich of the Palatinate. The prince ordered it in 1554, but did not see its completion in 1560. In addition to the time and seasons, the clock shows the orbits of the planets - still in line with the geocentric view of the world - as well as moving figures. It was sold to Emperor Ferdinand I in 1561 and is now in the Vienna Technical Museum . In addition to a manuscript on this apparatus and the work on Peuerbach, two works by Imsser on Euclidean Geometry ( Introductorium Geometricum ex Euclide aliisque eius scientiae scriptoribus , 1533) and Practical Geometry (perspective construction and surveying ) have survived, presumably from his Tübingen Lectures emerged. The latter is likely based in part on Albrecht Dürer's Unterweysung (Nuremberg 1525).
After Imser's departure, his tasks were divided: Johann Scheubel gave the lectures on arithmetic and geometry, while Samuel Eisenmenger (Siderocrates) took over the courses on astronomy and its neighboring areas.
literature
- Gerhard Betsch: A geometry lecture by Philipp Imser (Tübingen 1533). In: Algorism: Studies on the History of Mathematics and Natural Sciences , Volume 76 (2011), pp. 38–51.
Web links
- Friedrich Seck: On the 400th birthday of Wilhelm Schickard. Second Tübingen Schickard Symposium 1992 , Sigmaringen 1995
- Astronomical art clock (1554-1560) by Philipp Immser, including animation , Technical Museum Vienna
- Astronomical Prints, Varia - Cod. Gengenbach 3 on the website of the Badische Landesbibliothek
| personal data | |
|---|---|
| SURNAME | Imsser, Philipp |
| ALTERNATIVE NAMES | Imser, Philipp |
| BRIEF DESCRIPTION | South German astronomer |
| DATE OF BIRTH | 1500 |
| DATE OF DEATH | 1570 |