Ottokar Tumlirz

Ottokar Anton Alois Tumlirz , also Tumlir, (born January 17, 1856 in Weipert , Bohemia , † May 4, 1928 in Innsbruck ) was a Bohemian-Austrian physicist.

Life

Tumlirz was the son of a customs officer. From 1874 he studied physics, mathematics and philosophy at the German University in Prague (among others with Ernst Mach and Ferdinand Lippich ) and received his doctorate there in 1879 with Mach. After that he was Ernst Mach's assistant in the Institute for Experimental Physics until 1890. In this capacity he also gave lectures in Prague. In 1884 he became a private lecturer in Prague after his habilitation. In 1890 he became an assistant to Joseph Stefan at the University of Vienna and in 1892 an associate professor for theoretical physics at the University of Chernivtsi, succeeding Mach student Anton Waßmuth(1844–1927), who went to Innsbruck and later to Graz. In 1894 Tumlirz became a full professor there. From 1905 until his retirement (he resigned) in 1925, he was professor at the University of Innsbruck as successor to Karl Exner . His successor in Innsbruck was his doctoral student Arthur March ( Erwin Schrödinger had also hoped for a successor).

In 1889 he became a member of the Leopoldina and in 1904 of the Austrian Academy of Sciences .

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He wrote textbooks on potential theory and electrodynamics (including 1883 probably the earliest textbook on Maxwell's electrodynamics in German and probably at all, which was also translated into French) and dealt with electrodynamics as well as thermodynamics. Following Bernhard Riemann , he also dealt with shock waves . Early on in his lectures in Innsbruck he considered radioactivity, the discovery of X-rays and Max Planck's quantum theory .

In experiments in 1908 he believed that he had proven the Coriolis force due to the earth's rotation on the vortex when water drained through an opening. He let the water flow out very slowly (speed below 1 mm per minute) between two parallel horizontal glass plates in a cylindrical vessel into a vertical glass tube with many small holes, whereby the streamlines were made visible with a dye. Mach reports on this in an essay ( Inventors I have met , The Monist, 1912, p. 232) and found the demonstration to be correct. According to Tai L. Chow, the results of Tumlirz's experiment were inconclusive. Tumlirz also derived the theory of the phenomenon in his essay.

Fonts

The electromagnetic theory of light, Leipzig 1883 (French translation: Théorie électromagnétique de la lumière, Paris: Hermann 1892)
The potential and its application to the explanation of electrical phenomena, Vienna: Hartleben 1884 (English translation: Potential and Its Application to the Explanation of Electrical Phenomena, London: Rivingtons 1889)

literature

Rudolf Vierhaus (ed.), German Biographical Encyclopedia, KG Saur / De Gruyter 2008

Web links

References and comments

↑ It was even put at the top of the application list. This leaked into the public and led to a campaign against Schrödinger, who is known as a free thinker, so that March was awarded the contract, who thus got into an uncomfortable situation and was forced to publicly distance himself from the campaign.
↑ Member entry of Ottokar Tumlirz at the German Academy of Natural Scientists Leopoldina , accessed on January 6, 2016.

^ Maxwell's Treatise was published in Berlin in 1883 in German translation. Other early German-language books on this are by Paul Drude (Physics of Aether, 1894, Textbook of Optics 1900), Ludwig Föppl (Introduction to Maxwell's Theory, 1894), Woldemar Voigt (Compendium of Theoretical Physics 1896), Emil Cohn (The electromagnetic field 1900), Paul Volkmann (lectures on the theory of light, 1891), the lectures of Ludwig Boltzmann (lectures on Maxwell's theory of electricity and light, 1891, 1893) and Hermann von Helmholtz (lectures on the electromagnetic theory of light, 1897 )

↑ Christoph Hoffmann, Peter Berz (eds.): About Schall, Ernst Machs and Peter Salchers Geschoßfotografien, Wallstein, 2001

↑ Tumlirz, On the propagation of finite waves of finite oscillation amplitude, session reports Vienna Academy of Sciences, Volume 95, 1887, pp. 367–387. Analyzed in Peter Krehl, History of shock waves, Springer 2009, p. 393. Instead of conservation of momentum as with Riemann, he uses conservation of energy and derives an increased speed (compared to ordinary sound waves) as observed in experiments by Mach

↑ Tumlirz, A new physical proof for the axis rotation of the earth, session reports Wiener Akad. Wiss., Volume 117, 1908, pp. 819–841.

^ Mach, Inventor's I have met, Archive

↑ The Twisted Garden Hose and the Myth of the Toilet Flush, Elke Stangl's blog 2013 .

↑ Chow, Classical Mechanics, 2nd edition, CRC Press, p. 354. He mentions careful experiments carried out by Shapiro in the northern hemisphere in 1962 and by Trefethen in the southern hemisphere in 1965, which were evaluated as evidence of rotational behavior determined by Coriolis force.

personal data
SURNAME	Tumlirz, Ottokar
ALTERNATIVE NAMES	Tumlirz, Ottokar Anton Alois; Tumlir, Ottokar
BRIEF DESCRIPTION	bohemian physicist
DATE OF BIRTH	January 17, 1856
PLACE OF BIRTH	Weipert
DATE OF DEATH	May 4, 1928
Place of death	innsbruck

[1] It was even put at the top of the application list. This leaked into the public and led to a campaign against Schrödinger, who is known as a free thinker, so that March was awarded the contract, who thus got into an uncomfortable situation and was forced to publicly distance himself from the campaign.

[2] Member entry of Ottokar Tumlirz at the German Academy of Natural Scientists Leopoldina , accessed on January 6, 2016.

[3] Maxwell's Treatise was published in Berlin in 1883 in German translation. Other early German-language books on this are by Paul Drude (Physics of Aether, 1894, Textbook of Optics 1900), Ludwig Föppl (Introduction to Maxwell's Theory, 1894), Woldemar Voigt (Compendium of Theoretical Physics 1896), Emil Cohn (The electromagnetic field 1900), Paul Volkmann (lectures on the theory of light, 1891), the lectures of Ludwig Boltzmann (lectures on Maxwell's theory of electricity and light, 1891, 1893) and Hermann von Helmholtz (lectures on the electromagnetic theory of light, 1897 )

[4] Christoph Hoffmann, Peter Berz (eds.): About Schall, Ernst Machs and Peter Salchers Geschoßfotografien, Wallstein, 2001

[5] Tumlirz, On the propagation of finite waves of finite oscillation amplitude, session reports Vienna Academy of Sciences, Volume 95, 1887, pp. 367–387. Analyzed in Peter Krehl, History of shock waves, Springer 2009, p. 393. Instead of conservation of momentum as with Riemann, he uses conservation of energy and derives an increased speed (compared to ordinary sound waves) as observed in experiments by Mach

[6] Tumlirz, A new physical proof for the axis rotation of the earth, session reports Wiener Akad. Wiss., Volume 117, 1908, pp. 819–841.

[7] Mach, Inventor's I have met, Archive

[8] The Twisted Garden Hose and the Myth of the Toilet Flush, Elke Stangl's blog 2013 .

[9] Chow, Classical Mechanics, 2nd edition, CRC Press, p. 354. He mentions careful experiments carried out by Shapiro in the northern hemisphere in 1962 and by Trefethen in the southern hemisphere in 1965, which were evaluated as evidence of rotational behavior determined by Coriolis force.