2006-08-22 07:10:47 · 14 answers · asked by jennycamuk 3 in Science & Mathematics ➔ Weather
Light waves at different frequencies are detected by our eyes as different colors. The different frequencies are also bent at different angles from one another as they pass from one medium to another. The frequencies that we detect as blue are bent (refraction) by the earths atmosphere such that we can see them. Snell's law can be used to calculate refraction angles.
For an example of refraction, examine the effect a prism has on light passing through it or observe the offset in location of an object in a swimming pool from where it looks like it is to where you can actually grab it.
2006-08-22 07:29:46 · answer #1 · answered by Automation Wizard 6 · 0⤊ 1⤋
A clear cloudless day-time sky is blue because molecules in the air scatter blue light from the sun more than they scatter red light. When we look towards the sun at sunset, we see red and orange colours because the blue light has been scattered out and away from the line of sight.
http://www.sciencemadesimple.com/sky_blue.html
2006-08-22 14:32:07 · answer #2 · answered by reoh 2 · 0⤊ 1⤋
when light passes through oxygen molecules it shows as blue, the red in the sky if pollution mostly natural from volcanoes then forest fires and lastly man made pollutants. So the planets have different colours due to a lack of oxygen in there atmospheres
2006-08-22 18:16:40 · answer #3 · answered by northcarrlight 6 · 0⤊ 1⤋
the sky is blue because it's a reflection from the sun's light so actually it's white but it's looks blue and mayb cuz oxegon
2006-08-22 18:23:00 · answer #4 · answered by Anonymous · 0⤊ 1⤋
The sky is blue because that's the way God made it to be. It's just like saying how come the grass isn't yellow...its because God wanted it to be green.
2006-08-22 15:25:09 · answer #5 · answered by Anonymous · 0⤊ 1⤋
Refraction of the sun's light energy through the moisture in the atomosphere. The angle allows for us to see blue mid day and orange and red in the evening.
2006-08-22 14:16:45 · answer #6 · answered by Anonymous · 1⤊ 1⤋
It is because of the earth's atmosphere and how light passes through it. It appears to be blue.
2006-08-22 14:16:56 · answer #7 · answered by T 3 · 1⤊ 1⤋
it`s not Blue it dark the blue color you see appears because your eyes has a certain limit where you can no longer see beyond that limit.
2006-08-22 14:21:29 · answer #8 · answered by Fantasia 3 · 1⤊ 1⤋
because it knows there is no other sky in the universe.
2006-08-22 14:20:02 · answer #9 · answered by KU 4 · 0⤊ 2⤋
Oxygen and light refraction
2006-08-22 14:16:40 · answer #10 · answered by Anonymous · 1⤊ 1⤋