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2006-06-10 20:56:13 · 11 answers · asked by Anonymous in Science & Mathematics ➔ Astronomy & Space
I thought it was always blue until the sun went down.
2006-06-10 20:58:55 · answer #1 · answered by Mrs. Mac 4 5 · 0⤊ 0⤋
Sky is blue during the daytime because the molecules of the upper atmosphere scatter light. During dawn or dusk, the shorter wavelength such as violet indigo and blue are scattered at the same rate but since the sun is at inclination to the service, the shorter wavelenghts do not reach us and therefore we see the sky yellow or orange / red if there are pollutants in the air.
During day time when the sun is directly above, the blue is the maximum scattered therefore we see the sky blue while the other wavelengths just pass
2006-06-10 21:12:10 · answer #2 · answered by Apollo 1 · 0⤊ 0⤋
It is a mix of reasons.
From Physics it is scattering of light.
Light of sun is white which means it is mix of seven basic colors.
When white light of sun passes through the atmosphere, the blue light is scattered in the atmosphere and other frequencies of light are not scattered. So the color of sky is blue.
The reason of scattering of blue light is in explanation from chemistry.
78% of air is Nitrogen which acts in thick layer of about 100 Kilometers as blue (liquid Nitrogen is blue) so the co lour of sky appears as blue.
White light of sun consist of seven basic colours. Nitrogen absorbs all the colours except the blue and so the colour of sky appears to be blue. At night when there is no light sky appears to be dark. Same happens when one gets out of the atmosphere.
On earth the colour seems to have been always blue as the composition of air does not seem to have been changing in an effect proportion.
On other planets however, change of atmospheric gases will develop different colours of sky.
2006-06-16 05:08:36 · answer #3 · answered by dr_ibad_khan 6 · 0⤊ 0⤋
it is blue for most of the day. it is because the sunlight consists of all seven colours and when it enters the earth's atmosphere, it gets diffractred in seven different colours. in the morning an evening, due to the inclination, red is the most prominent one, but during daytime, the most prominent one are violet and blue. as human is sensitive to blue and not violet, we only percieve the blue part of the sunlight. this is the reason for the sky appearing blue.
2006-06-10 21:04:27 · answer #4 · answered by Abhishek K 3 · 0⤊ 0⤋
Blue because of the oxygen content.
The atmosphere absorbs all the colours of the sunlight but reflects blue.During sun rise or sunset the pollution like dust in the atmosphere scatter the red part of the spectrum of sunlight so looks red.
2006-06-10 21:02:00 · answer #5 · answered by Anonymous · 0⤊ 0⤋
bcos blue colour is scattered the most. in our atmosphere its wavelength is min . theres this relation :
scattering of light is inveresely propotional to the wavelength of the colour component.
2006-06-10 21:08:48 · answer #6 · answered by Anonymous · 0⤊ 0⤋
Roses r red, sky is blue ,the morons like u r very very few...lol..just kiddin..:) well i think sky is blue becoz it is his fav colour..see yaa..
2006-06-10 21:05:12 · answer #7 · answered by doll**22**in 2 · 0⤊ 0⤋
we have 71% of water body so it refelcts the blue colour thats the tendancy of water body .. u need to study refraction and reflection of light.
2006-06-10 21:23:18 · answer #8 · answered by Anonymous · 0⤊ 0⤋
If I had to get up that doggone early every day I'd be blue too!
2006-06-10 21:01:54 · answer #9 · answered by synchronicity915 6 · 0⤊ 0⤋
DUE TO SCATTERING OF LIGHT.
THE WAVE LENGTH OF BLUE COLERIS SCATTERED MAXIMUM,BY THE ATMOSPHERE PARTICLES.
2006-06-10 21:02:05 · answer #10 · answered by sunstarsunil 2 · 0⤊ 0⤋