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surniina
ANSWERS: 2
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Blue light is scattered more strongly than red light -- this is why the sky is blue. At sunset in the direction of the sun the blue is filtered out thus, and the remaining transmitted light has all this red and orange hues. The effect is stronger, if there is dust in the atmosphere (because the dust scatters a lot of light). Volcanoes and sunsets, there is a connection! A nice home experiment: fill a glass jar with water, and add one drop of milk, just so that the water becomes a little cloudy. Darken the room and shine a torch into the glass jar. If you look sidewise to the rays of the torch in the cloudy water, it looks... if you look directly into the torch through the milky water, it is.. (don't guess, try it!)
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The angle that the light is hitting the atmosphere is such that red spectrum light, which is a much longer wavelength, is able to be scattered around. Usually when the sun is higher in the sky during the day, only the short length, bluel light is small enough to be bouncing around everywhere, that's why the sky looks blue most of the time.
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