kumi is: In optics, corpuscular theory of light, originally set forward by Pierre Gassendi, states that light is made up of small discrete particles called "corpuscles" (little particles) which travel in a straight line with a finite velocity and possess kinetic energy.
It was largely developed by Sir Isaac Newton. Newton's theory remained in force for more than 100 years and took precedence over Huygens' wave front theory, partly because of Newton’s great prestige. However when the corpuscular theory failed to adequately explain the diffraction, interference and polarization of light it was abandoned in favour of Huygen's wave theory. kidding its some stupid NB money