Light is something like raindrops — each little lump of light is called a photon — and if the light is all one color, all the "raindrops" are the same.
p. 14 - QED: The Strange Theory of Light and Matter (1985)
Light is something like raindrops — each little lump of light is called a photon — and if the light is all one color, all the "raindrops" are the same.
p. 14 - QED: The Strange Theory of Light and Matter (1985)