Then came James Clerk Maxwell and gave us the truth in 1879 that holds as the truth, to this day, over 140 years later. Here are Maxwell's actual words on one page telling us that light is just transverse electromagnetic pure energy, e in e=mc^2, waves we know today. Later, after Einstein agreed, and Quantum Mechanics agreed too, we find that photons, particles of light, are just manifestations of these energy waves observable when enough energy from light strikes a particle that has mass. The mass is an observer of light that cannot otherwise be detected. Like an atom in your eyeball that registers this energy by changing its atomic state.

James Clerk Maxwell also figured out what colored light actually was and proved that with with the first color photograph ever taken.

READ HIS WORDS! It is ONLY ONE PAGE OF PERFECTLY CLEAR ENGLISH:

https://medium.com/liecatcher/who-is-james-clerk-maxwell-c14a956d530

No lie.