What are some reasons that the sky is blue?
This peeling off of the lower frequencies in the spectrum (blues) is called Rayleigh scattering.stalefish said:http://en.wikipedia.org/wiki/Rayleigh_scattering
The amount of scattering depends on the frequency of the light. Blue light, having a higher frequency, scatters more than lower frequencies (Which pretty much pass straight through the atmosphere). This scattering of blue light more than the other visible frequencies results in us seeing the sky as blue.
No, actually Rayleigh scattering is at least partially responsible for water being blue too. The deeper you go in water the more of the spectrum is bounced out. At 33 feet you've lost the color red. At 66 feet you've lost orange.The_Thinker said:The reason water is blue, is because of the reflection of the blue sky on the water... thats all... water isn't blue...
Things are the color that they are due to teh frequencies of light that emerge from them. Ignoring whatever might be in the water (algae, mud, red tide etc) oceans are gree-blue because that is the light that scatters back out of the oceans.Mk said:So is water blue because water is blue? Or is it scattering? Or something else?