Joseph Loschmidt

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Loschmidt, Joseph


Born Mar. 15, 1821, in Putschirn, now Počerná, Czechoslovakia; died July 8, 1895, in Vienna. Austrian physicist. Professor at the University of Vienna from 1868.

Loschmidt was the first to calculate the number of molecules in 1 cm3 of a gas (Loschmidt’s number) on the basis of the kinetic theory of gases (1865). He also carried out experimental studies on diffusion in gases.


“Zur Grösse der LuftmolekÜle.” Sitzungsberichte derAkademie der Wissenschaften in Wien, 1866, vol. 52, p. 395.