Alfred-Marie Liénard
Alfred-Marie Liénard (born April 2, 1869 in Amiens , † April 29, 1958 in Paris ) was a French physicist and engineer . He is best known for his introduction (independently of Emil Wiechert ) of the so-called Liénard-Wiechert potential (1898).
From 1887 to 1889 Liénard was a student at the École polytechnique and from 1889 to 1892 at the École nationale supérieure des mines de Paris . From 1892 to 1895 he was a mining engineer in Valencia , Marseille , and Angers . From 1895 to 1908 he was a professor at the École des Mines de Saint-Étienne and from 1908 to 1929 he was a professor of electrical engineering at the École des mines de Paris. During the First World War he served in the French army . From 1929 to 1936 he was director of the École des mines de Paris.
Liénard dealt with electricity , magnetism , and mechanics . In 1898 (and two years after Emil Wiechert ) he derived equations with which one describes the electromagnetic effects of a moving charge (Liénard-Wiechert potential). He also studied problems related to the elasticity and strength of materials, and wrote papers on thermodynamics and hydrodynamics .
Liénard was the commander of the Legion of Honor . He was also vice president of the Société Française des Électriciens and he was president of the Société Mathématique de France .
Individual evidence
- Marc Jouguet: La vie et l'oeuvre scientifique de Alfred-Marie Liénard . In: Exposé fait en séance mensuelle de la Société française des Electriciens, le 4 décembre . 1958.
- ↑ Liénard L'eclairage électrique, Volume 16, 1898, page 5, 53, 106
Web links
- Annales.org: Alfred-Marie Liénard
| personal data | |
|---|---|
| SURNAME | Liénard, Alfred-Marie |
| BRIEF DESCRIPTION | French physicist |
| DATE OF BIRTH | April 2, 1869 |
| PLACE OF BIRTH | Amiens |
| DATE OF DEATH | April 29, 1958 |
| Place of death | Paris |