Pierre Gassendi Pierre Gassendi (1592–1655), an atomist, proposed a particle theory of light which was printed posthumously while in the 1660s. Isaac Newton examined Gassendi's function at an early age and chosen his see to Descartes's concept on the plenum. He mentioned in his Speculation of Light of 1675 https://lorenzo90q76.get-blogging.com/37093124/indicators-on-multi-purpose-baby-chairs-you-should-know