Ignaz Klemenčič

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Ignaz Klemenčič

Ignaz Klemenčič (Slovenian Ignac Klemenčič, born February 6, 1853 in Steinbach bei Treffen (Kamni potok pri Trebnju); † September 5, 1901 in Treffen) was an Austrian physicist .

Life

After attending school in Novo mesto , he studied physics at the University of Graz from 1871 to 1877 under Ludwig Boltzmann , whose assistant he became in 1876. In 1879 he acquired his Dr. phil. with a doctoral thesis on mechanical phenomena in glass and iron and became a lecturer two years later. In 1888 he became associate professor at the University of Graz, in 1895 suppl. Professor at the University of Innsbruck (as successor to Ernst Lecher together with Paul Czermak ) and in the following year full professor for experimental physics. His main field of work was electricity and magnetism. He was supposed to be appointed to the TH Vienna in December 1901 , but suffered a heart attack. Czermak became his successor.

1887 (standing, from left) Walther Nernst , Heinrich Streintz , Svante Arrhenius , Richard Hiecke, (seated, from left) Eduard Aulinger, Albert von Ettingshausen , Ludwig Boltzmann , Ignacij Klemenčič, Victor Hausmanninger

In 1884 he measured the speed of electromagnetic waves with considerable accuracy, thereby confirming Maxwell's theory . In 1891 he detected high frequency with a thermocouple connected to an antenna line. In 1892, at the same time as Frederick Thomas Trouton , he showed that the polarization equations given by Augustin Jean Fresnel also apply to the electrical oscillations of Hertzian waves. In 1892 he and Lecher received the Andreas Baumgartner Prize from the Vienna Academy. In 1893 he was still the owner of the property in Steinbach. In 1900 he was elected a member of the Leopoldina .

Publications

  • Observations on the elastic after-effect on the glass. In: Session reports of the mathematical and natural science class of the Imperial Academy of Sciences. Department 2, Volume 78, 1878, pp. 481-499, ( digitized version , = dissertation University of Graz 1878).
  • Contribution to the knowledge of the internal friction in iron. In: Session reports of the mathematical and natural science class of the Imperial Academy of Sciences. Department 2, Volume 78, 1878, pp. 935-942, ( digitized ).
  • Observations on the damping of torsional vibrations by internal friction. In: Session reports of the mathematical and natural science class of the Imperial Academy of Sciences. Department 2, Volume 81, 1880, pp. 791-809, ( digitized version ).
  • To determine the relationship between the electromagnetic and mechanical unit of current intensity. In: Session reports of the mathematical and natural science class of the Imperial Academy of Sciences. Division 2, Volume 83, 1881, pp. 603-617.
  • About the damping of the vibrations of solid bodies in liquids. In: Session reports of the mathematical and natural science class of the Imperial Academy of Sciences. Division 2, Volume 84, 1882, pp. 146-167.
  • Investigations into the relationship between the electrostatic and electromagnetic measurement system. I. In: Session reports of the mathematical and natural science class of the Imperial Academy of Sciences. Department 2, Volume 89, 1884, pp. 298-328, ( digitized ).
  • Experimental study of the dielectric constant of some gases and vapors. In: Session reports of the mathematical and natural science class of the Imperial Academy of Sciences. Department 2, Volume 91, 1885, pp. 712-759, ( digitized ).
  • About a method for determining electromagnetic radiation. In: Session reports of the mathematical and natural science class of the Imperial Academy of Sciences. Department 2a, Volume 101, 1892, pp. 310-318, ( digitized ).
  • with Paul Czermak : Experiments on the interference of electrical waves in the air. In: Session reports of the mathematical and natural science class of the Imperial Academy of Sciences. Department 2a, Volume 101, 1892, pp. 936-953, ( digitized ).
  • Contribution to the knowledge of the absorption and branching of electrical vibrations in wires. In: Session reports of the mathematical and natural science class of the Imperial Academy of Sciences. Department 2a, Volume 102, 1893, pp. 298-320, ( digitized version ).
  • An apparatus for demonstrating the development of heat in wires through electrical vibrations. In: Annals of Physics and Chemistry . 290 = New Series 54, 1895, pp. 755-760.
  • Contribution to the knowledge of the magnetic aftermath. In: Annals of Physics and Chemistry. 299 = New Series 63, 1897, pp. 61–65, ( digital copy ).
  • About the internal resistance of Clark's normal elements. In: Reports of the scientific-medical association in Innsbruck. Volume 23, 1897, pp. 90-111, ( digitized version ).

literature

  • Paul Czermak: Mourning rally for Professor Dr. Ignaz Klemencic at the medicin.-naturwiss meeting. Association on October 29, 1901. In: Reports of the scientific-medical association in Innsbruck. Volume 27, 1902, pp. 69-76, ( digitized version ).
  • Michael Radaković : Report on the last magnetic work of Prof. Klemenčič. In: Reports of the scientific-medical association in Innsbruck. Volume 27, 1902, pp. 77-86, ( digitized version ).
  • Klemenčič, Ignaz. In: Austrian Biographical Lexicon 1815–1950 (ÖBL). Volume 3, Verlag der Österreichischen Akademie der Wissenschaften, Vienna 1965, p. 394.

Individual evidence

  1. ↑ uni-graz.at: History of Physics - Institutions .
  2. ↑ Ludwig Darmstaedter : Handbook on the history of natural sciences and technology 1866 . (PDF; 2.9 MB).
  3. ^ Official Journal of the Laibacher Zeitung No. 274 , November 29, 1893.
  4. ↑ Member entry of Ignaz Klemencic at the German Academy of Natural Scientists Leopoldina , accessed on September 27, 2017.
personal data
SURNAME Klemenčič, Ignaz
BRIEF DESCRIPTION Austrian physicist
DATE OF BIRTH February 6, 1853
PLACE OF BIRTH Steinbach at meeting
DATE OF DEATH September 5, 1901
Place of death To meet