In physics

auroh,

Please have a look at this site:-

3.1 Newtonian Physics
In their physics, if not in their philosophy, both Newton and Boscovich took ` forces' to be the real manner of operation between corpuscles.. .

3.1 Newtonian Physics (http://www.generativescience.org/books/pnb/newtonian-physics.html)

I don't know what you mean by discovered, but corpuscles of light was a theory put forth by Isaac Newton to explain phenomena associated with light, but since has moved out of favour with the community. (they moved onto describing light using sound-like waves, and then onto a duality explanation expressed by photons.)