Wilhelm Wien

Wilhelm Carl Werner Otto Fritz Franz Wien (German: [ˈvɪlhɛlm ˈviːn] ; 13 January 1864 – 30 August 1928) was a German physicist who used theories about heat and electromagnetism to deduce Wien's displacement law, which calculates the emission of a blackbody at any temperature from the emission at any one reference temperature.

Wien also formulated an expression for the black-body radiation, which is correct in the photon-gas limit. His arguments were based on the notion of adiabatic invariance, and were instrumental for the formulation of quantum mechanics. Wien received the Nobel Prize in Physics in 1911 for his work on heat radiation.

He was a cousin of Max Wien, inventor of the Wien bridge.

Notable works: mass spectrometer, Wien's displacement law, Wien approximation Awards: Nobel Prize in Physics, Bavarian Maximilian Order for Science and Art, Guthrie Lecture, honorary member of the Physics Association (Frankfurt am Main, Germany) Education: University of Göttingen, Frederick William University Berlin, Altstadt Gymnasium

Source: Wikipedia — https://en.wikipedia.org/wiki/Wilhelm_Wien