Herbert Callen

Who was Herbert Callen?

Herbert Bernard Callen was an American physicist best known as the author of the textbook Thermodynamics and an Introduction to Thermostatistics, the most frequently cited thermodynamic reference in physics research literature. During World War II he was also called upon to undertake theoretical studies of the principles underpinning the effort to create the atom bomb.

A native of Philadelphia, Herbert Callen received his Bachelor of Science degree from Temple University. He married in 1945, as the war and his work for the Manhattan Project were coming to an end, and subsequently studied for a PhD. in physics at the Massachusetts Institute of Technology, receiving his degree in 1947. His graduate advisor was the eminent physicist László Tisza.

In 1948, Callen joined the faculty of the University of Pennsylvania Department of Physics and, in 1984, received the Elliott Cresson Medal from the Franklin Institute. He was also the recipient of a Guggenheim Fellowship for the academic year 1972/1973, and his distinguished career in physics was capped by induction into the National Academy of Sciences in 1990.