“Whoa, there’s colors!”

PhyiscsGirl: Can you see this type of light? (YouTube, 9:45min) “Polarized light is an unusual form of light. Can humans see when light is polarized?”

By the way, you can train yourself into seeing the polarization of light. The video mentions staring at a lcd screen for a while and tilting your head to see Haidinger’s brush. You can do the same thing with the sky on a clear day. After practicing this for a bit, you’ll be able to detect the polarization of the sunlight easier and easier.

Auf deutsch heißt das Phänomen übrigens Haidinger-Büschel.