Pierre Louis Dulong

Pierre Louis Dulong FRS FRSE was a French physicist and chemist. He is remembered today largely for the law of Dulong and Petit, although he was much-lauded by his contemporaries for his studies into the elasticity of steam, conduction of heat, and specific heats of gases. He worked most extensively on the specific heat capacity and the expansion and refractive indices of gases. He collaborated several times with fellow scientist Alexis Petit, the co-creator of the Dulong–Petit law.

12 February 1785

Born on the same birth day (12 February): Ajda Pekkan • Chynna Phillips • Eugène Atget • Kim Ji-min (actress) • Michael Ironside • Naomi Uemura • Nicholas Soames

Born in the same month (February 1785): Claude-Louis Navier