Éleuthère Mascart

Eleuthère Elie Nicolas Mascart ( born February 20, 1837 in Quarouble, Nord-Pas -de- Calais, † August 24, 1908 in Paris) was a French physicist who conducted research in the field of optics and electricity. He was professor of experimental physics at the Collège de France. As the world's leading meteorologist, he organized the French national weather service météorologie française, a predecessor of the Météo -France.

Eleuthère Mascart was grandfather ( mother's side) of the physicist Léon Brillouin.