Arthur Erich Haas

Physicist, Musical Artist

1884 – 1941

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Who was Arthur Erich Haas?

Arthur Erich Haas 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 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". 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.

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Born
Apr 30, 1884
Brno
Profession
Education
  • University of Vienna
Died
Feb 20, 1941
Chicago

Submitted
on July 23, 2013

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