Why is air colorless but the sky is blue? When we look at the sky during the day it is blue but when we look at an green object which is 5 meters away from us the air appears completely colorless and transparent. Why is that?
Because we are all color blind, air is actually magenta in color if you could see it.Please Register or Log in to view the hidden image!
The sky is blue because blue light (from the sun) tends to scatter in the air more than longer wavelengths.
It's because air is only slightly blue, you have to look through a lot of it before you notice the blueness. Unless you are looking straight at a (white) light source, then it looks red because all the blue light has been scattered off in other directions.
The sun is most energetic in the light green spectrum. Our light cones in our eyes adjust for this making it white to us. As a predator, we can see the most movement with "white" light. So, I am not really sure what color the air would be without this adjustment to our eyes.
