Ludwig Schrön

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Heinrich Ludwig Friedrich Schrön (born February 17, 1799 in Weimar ; † May 18, 1875 in Jena ) was a German mathematician, astronomer, meteorologist and geodesist . He is best known for his log tables.

life and work

Schrön lost his father at an early age and his mother as a high school student. With the help of private lessons, he brought his school days behind him. Thanks to his mathematical knowledge, he was then employed in the Weimar surveying department. He became conductor (surveyor) and studied mathematics at the University of Jena under Johannes Friedrich Posselt (1794–1823), astronomer and head of the Grand Ducal Observatory in Jena . He became his assistant and after his death in 1823 took over the provisional management of the observatory. Since the equipment of the observatory left a lot to be desired, he turned to meteorology on the advice of Johann Wolfgang von Goethe . In 1824 he received his doctorate and, with a grant from the Weimar government, went to Peter Andreas Hansen at the Seeberg observatory near Gotha, where in five years he not only received training in observational astronomy, but also as an astronomical calculator. In 1829 he was first inspector, from 1834 director of the observatory and in 1834 professor in Jena. He gave lectures on astronomy and mathematics and also taught at the Agronomic Institute of Geodesy and the Pharmaceutical Institute of Stoichiometry .

He continued his meteorological records, which he was only able to publish in part when Goethe was minister and financed this (the Leopoldina, into which he was admitted, was also unable to permanently finance the publication).

After first 1835 published three- and five-figure logarithms, published in 1861 with a long delay caused by a discharged in court dispute with the publisher's seven-digit boards in Vieweg, who enjoyed a reputation as a typographical masterpiece were called and were also used in France . In 1845 he published mathematical auxiliary tables .

On June 25, 1834 he was elected member of the Leopoldina with the nickname Zach (matriculation no. 1393).

He had a son who was an ophthalmologist in Jena.

Fonts

  • Mathematical auxiliary boards. 1845.
  • Stoichiometric auxiliary tables. Hahn , Hannover 1846 ( online in the Google book search).
  • Calculation of the alcohol content in the wine bar. Hahn, Hannover 1850 ( online in the Google book search).
  • Seven-digit common logarithms of the numbers from 1 to 108000 and the sine, cosine, tangents and cotangents of all angles of the quadrant from 10 to 10 seconds; Table I & II of the complete works in three tables. Vieweg , Braunschweig 1860 digitized, BSB . Sixth revised stereotype edition, Vieweg, Braunschweig 1865 ( archive )

literature

Web links

Individual evidence

  1. ^ Claudia Schweizer: Johann Wolfgang von Goethe and Kaspar Maria von Sternberg. Vienna 2004, pp. 191–192.
  2. ^ Ferdinand Neigebaur : History of the imperial Leopoldino-Carolinian German Academy of Natural Scientists during the second century of its existence. 1860, p. 263 online
personal data
SURNAME Schrön, Ludwig
ALTERNATIVE NAMES Schrön, Heinrich Ludwig Friedrich (full name)
BRIEF DESCRIPTION German mathematician, astronomer, meteorologist and geodesist
DATE OF BIRTH February 17, 1799
PLACE OF BIRTH Weimar
DATE OF DEATH May 18, 1875
Place of death Jena