!!!Stefan, Josef

Stefan, Josef, b. Klagenfurt (Carinthia), March 24, 1835, 
d. Vienna, Jan. 7, 1893, physicist. Founder of the Austrian "School of 
Physics", teacher of L.  Boltzmann; 1863 university professor, 1866 
Director of the Department of Physics of the University of Vienna; 
Secretary and Vice-President (1885) of the Academy of Sciences. His 
most important scientific achievements comprise his experimental 
studies on heat conductivity in gases by means of a 
´diathermometer´ and the law of heat radiation intensity 
(= "T%%sup 4/%-Gesetz" - one of the radiation laws based on 
Boltzmann's Law). S. was also partly responsible for recognition of 
the Maxwell Theory on the continental Europe; his work contributed to 
the understanding of acoustic and optical problems, as well as to 
electricity theory and to hydrodynamics.

!Literature
A. v. Obermayer, Zur Erinnerung an J. S., 
1893.



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