Otto Ernst Julius Seyffer

Otto Ernst Julius Seyffer (born October 7, 1823 in Stuttgart , † April 15, 1890 ibid) was a German physicist who was best known for his discussion with Julius Robert Mayer .

Life

Otto Ernst Julius Seyffer was a private lecturer in physics in Tübingen from 1850 to 1851 . He later worked in Stuttgart as an editor of the Württemberg State Gazette, and in this function he received the title of professor. In 1866 he gave up this work and devoted himself to numismatics .

From 1866 to 1874, Seyffer was the owner of what his brother-in-law Karl Abr Möricke operated company "Fabrication and Export in Drug goods KA Möricke u. Comp. ”In Königstrasse 42.

He set up a collection of Greek and Roman coins and a numismatic library, which were auctioned off in Munich after his death . He bequeathed his considerable fortune to the city of Stuttgart as a foundation. Seyfferstraße in Stuttgart-West was named after Otto Ernst Julius Seyffer in 1890.

Seyffer as a scientist and adversary to Mayer

Wall epitaph of the Seyffer family in the Pragfriedhof Stuttgart, Department 5.

Seyffer's dissertation from 1846 was entitled History of the discovery of contact or so-called galvanic electricity up to the invention of the column by Alexander Volta ; in 1848 he expanded it to include the historical presentation of galvanism . It had emerged from a price font.

In 1850 he completed his habilitation in Tübingen. The first thesis of his habilitation on April 18, 1850 was: I recognize the finding of the so-called number of equivalents between mechanical force and heat as a fait accompli. Only a year earlier, however, he had carried out a violent attack against Julius Robert Mayer in the Augsburger Allgemeine Zeitung and attested his statements about the energy principle to be untenable. Even James Prescott Joule and Hermann von Helmholtz had ignored Mayers versions. Mayer, who had tried in vain to publish a reply, jumped out of a window of his apartment on the second floor in excitement about Seyffer's habilitation and his own non-recognition on May 18, 1850 and suffered permanent damage. Carl Ipsen therefore blamed Seyffer for the Heilbronn doctor's first severe state of excitement. Seyffer could not really convince with his habilitation and was only admitted as a private lecturer. When Johann Gottlieb Nörrenberg's chair became vacant in 1851 , Seyffer's appointment was rejected by the responsible faculty and Professor Reusch was proposed instead.

Individual evidence

1. ↑ Stuttgart Memorial Day Calendar
2. ^ Wilhelm Stricker, Medicinisch-Naturwissenschaftlicher Nekrolog of the year 1890 , in: Virchows Archiv 123, Nr. 2, S. 378–388; the statement on thesaurus.cerl.org: Seyffer, Otto Ernst Julius , Seyffer was a professor of physics, is obviously wrong.
3. ^ ^{A b} Carl Ipsen, Julius Robert Mayer: Reports of the Natural Science and Medicine Association in Innsbruck , 38, 1922, pp. 1-49, here pp. 28 f.
4. ↑ Möricke's company ( Memento from December 18, 2015 in the Internet Archive ) (PDF; 363 kB)
5. ^ Eugen Merzbacher , directory of Prof. Dr. Otto Seyffer in Stuttgart left a collection of Greek and Roman coins along with a numismatic library which, under the direction of Eugen Merzbacher, were publicly auctioned in Munich on October 13, 1891 and the following days , 1891
6. ↑ Stadtwiki Stuttgart
7. ↑ life data
8. ↑ Alexander von Humboldt Bibliography
9. ^ Ingo Müller, A History of Thermodynamics. The Doctrine of Energy and Entropy. The Doctrine of Energy and Entropie , Berlin / Heidelberg 2007, ISBN 978-3540462262 , p. 17
10. ↑ Armin Hermann and Armin Wankmüller, Physics, Physiological Chemistry and Pharmacy at the University of Tübingen , ISBN 978-3164428019 , p. 19 f.