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Herbert Callen
American physicist (1919-1993) · United States · On the map · Scientists · Died at 73
Herbert Bernard Callen was an American physicist specializing in thermodynamics and statistical mechanics.
Herbert Callen is read about 10 times a day, in 9 languages.
A typical day, 30 days to 25 June 2026
The middle day of the days counted, so one week of news cannot move it. The line under it is the last 60 days, one point a day.
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About this person
He is considered one of the founders of the modern theory of irreversible thermodynamics, and is the author of the classic textbook Thermodynamics and an Introduction to Thermostatistics, published in two editions. He is also known for developing the fluctuation-dissipation theorem. During World War II, his services were invoked in the theoretical division of the Manhattan Project.
