Arthur Erich Haas, Date of Birth, Place of Birth, Date of Death

    

Arthur Erich Haas

Austrian physicist

Date of Birth: 30-Apr-1884

Place of Birth: Brno, South Moravian Region, Czech Republic

Date of Death: 20-Feb-1941

Profession: physicist, university teacher

Nationality: Austria

Zodiac Sign: Taurus


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About Arthur Erich Haas

  • Arthur Erich Haas (April 30, 1884 in Brno – February 20, 1941 in Chicago) was an Austrian physicist, noted for a 1910 paper he submitted in support of his habilitation as Privatdocent at the University of Vienna that outlined a treatment of the hydrogen atom involving quantization of electronic orbitals, thus anticipating the Bohr model (1913) by three years. Haas’ paper, however, was initially rejected and even ridiculed.
  • As noted in his autobiography, Haas recalls: "When I lectured to the Chemical-Physical Society of Vienna ...
  • Lecher ...
  • referred to the presentation during open discussion as a carnival joke" (the lecture was held during carnival time in Austria, February 1910).
  • Soon thereafter, however, by September 1911 at a physical science convention in Karlsruhe, former detractors of Haas' work acknowledged it with greater enthusiasm as noted in a footnote: "We do not know what caused [a] change of mind in 1911 and can merely suggest the general trend of thinking at the time: 1910 saw the beginning of a universal shift of opinion of the quantum concept."The significance of Haas' work lay in the establishment of a relationship between Planck's constant and atomic dimensions, having been first to correctly estimate the magnitude of what is today known as the Bohr radius.
  • From 1936 to his death he was professor at the University of Notre Dame.

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