. . "Pierre Petit (8 December 1594 \u2013 20 August 1677) was a French astronomer, physicist, mathematician and instrument maker.Petit was born in Montlu\u00E7on. He succeeded his father in his municipal office (Contr\u00F4leur de l'\u00E9lection), but went to Paris in 1633 to dedicate himself to the sciences. He was a member of the circle around Marin Mersenne, and knew Etienne Pascal, Blaise Pascal, and Ren\u00E9 Descartes. Later he was a member of the Academy of Montmor."@en . "1677-08-20Z"^^ . "1594Z"^^ . "Petit, Pierre"@en . "1594-12-08Z"^^ . . "1677Z"^^ . "French astronomer, military engineer, and physicist" . .