Gaspard-Gustave de Coriolis (ɡaspaʁ ɡystav də kɔʁjɔlis; 21 May 1792 – 19 September 1843) was a French mathematician, mechanical engineer and scientist. He is best known for his work on the supplementary forces that are detected in a rotating frame of reference, leading to the Coriolis effect. He was the first to apply the term travail (translated as "work") for the transfer of energy by a force acting through a distance.
Coriolis was born in Paris in 1792. In 1808 he sat the entrance exam and was placed second of all the students entering that year, and in 1816, he became a tutor at the École Polytechnique, where he did experiments on friction and hydraulics.
In 1829, Coriolis published a textbook, Calcul de l'Effet des Machines ("Calculation of the Effect of Machines"), which presented mechanics in a way that could readily be applied by industry. In this period, the correct expression for kinetic energy, ½mv2, and its relation to mechanical work, became est