du Châtelet

du Châ·te·let

 (do͞o shä-tə-lā′, dyo͞o, dü), Marquise. Title of (Gabrielle) Émilie Le Tonnelier de Breteuil. 1706-1749.
French mathematician and physicist. She wrote Institutions de physique (1740) and translated Newton's Principia Mathematica into French (published posthumously in 1759).