Why are clouds white and rapids white, same kind of thing. I was reading about it and it said something about the EM wave inducing a dipole in the water. If white light shines through a large body of water it doesn't look white. So does it have something to do with them being in droplet form. I am looking for an answer on the atomic scale and how Maxwells equations describe the interaction with the water. Any input will be much appreciated. I guess i just don't understand the mechanism behind scattering.