Gustave-Gaspard Coriolis

Gustave-Gaspard Coriolis (21 May 1792, Paris – 19 September 1843, Paris) was a French physicist best known for the description of the inertial force that a body experiences when it moves with respect to a rotating frame of reference. This force is known as a Coriolis force. It plays an important role in meteorology, ballistics, and oceanography, where it leads to the Coriolis effect.

Coriolis is also known for the first clear exposition of the concept of work in physics and its relation to change in kinetic energy.

Coriolis father was an officer in the army of the Ancien Régime, who fled from Paris to Nancy with his family a few months after Gustave's birth. King Louis XVI had been arrested (and would be beheaded half a year later), the monarchy was abolished, and Paris was not a safe place for an officer of the king.

The young Coriolis was brought up in Nancy and attended school there. In 1808 he entered the École Polytechnique in Paris and after graduating he entered the École des Ponts et Chaussées, also in Paris. After completing his engineering degree, he worked for several years in the Meurthe-et-Moselle district and the  Vosges mountains. After his father died Coriolis had to support the family and he decided to accept a post in the École Polytechnique in 1816 as a mathematics tutor.

Coriolis became professor of mechanics at the École Centrale des Artes et Manufactures in 1829. In July 1830 there was a revolution and, following this, the great mathematician Augustin-Louis Cauchy left Paris in September 1830. Coriolis was offered Cauchy's position at the École Polytechnique but refused, because by this time he was highly involved in his research and decided not to take on any further teaching duties.

However, two years later Coriolis did take on a position at the École des Ponts and Chaussées in 1832. He and Navier taught applied mechanics there. Navier died in 1836 and Coriolis was appointed to his chair at the École des Ponts and Chaussées. He was also elected to replace Navier in the mechanics section of the Académie des Sciences. Coriolis died in 1843.