Paul Langevin (January 23,1872--December 19,1946) was a French physicist, president of the Human Rights League (LDH) from 1944 to 1946 (he had just recently joined the French Communist Party).
Paul Langevin (January 23,1872--December 19,1946) was a prominent French physicist who developed Langevin dynamics and the Langevin equation. He was president of the Human Rights League (LDH) from 1944 to 1946 (he had just recently joined the French Communist Party).