In what country was the man who originally proposed Le Sage's theory of gravitation in 1690 born?
Nicolas Fatio de Duillier Nicolas Fatio de Duillier {'1': ", '2': ", '3': ", '4': "} (also spelled Faccio or Facio; 16 February 1664 – 12 May 1753) was a Swiss-born mathematician, natural philosopher, and inventor. He spent much of his adult life in England and Holland. Fatio is known for his work on the zodiacal light problem in astronomy, for originating the "push" or "shadow" theory of gravitation, for his close association with both Christiaan Huygens and Isaac Newton, and for his role in the Newton v. Leibniz calculus controversy. He also invented and developed the first method for fabricating jewel bearings for mechanical watches and clocks.
Pierre Daniel Huet Pierre Daniel Huet (] ; Latin: "Huetius" ; 8 February 1630 – 26 January 1721) was a French churchman and scholar, editor of the Delphin Classics, founder of the Academie du Physique in Caen (1662-1672) and Bishop of Soissons from 1685 to 1689 and afterwards of Avranches.