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Why there is a blue shade mostly on sky ?
Published by: jane 2009-01-07

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    maximum times the shades of sky are blue,why it is.


  • becoz of ozone layer spread above earth



  • always in a blue moode........




  • it reflects blue light from the light emited by sun


  • Light is the spectrum of 7 colors(VIBGYOR).All light travels in a straight line unless it collides with dust and gas particles in the atmosphere. All colors are scattered or reflected according to their wavelength.The longest wavelengths of light are on the red end of the spectrum and the shortest wavelengths are on the blue/violet end of the spectrum.Colors with short wavelength gets scattered more than the color with long wavelengths.
    Why::
    On a clear sunny day, the sky above us looks bright blue. It is made mostly of the gases nitrogen (78%), and oxygen (21%). Argon gas and
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    What makes the sky..? ..Okay quick question. If space is black, and the ::
    in all directions, leaving us to see mostly only the looks like a deeper shade of blue, while the sky closer to the horizon looks more of a faded blue.
    http://answers.yahoo.com/question/index?qid=20081122193537AAfbHyQ
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    Hence,when sunlight passes through the atmosphere,it collides with dust and gas particles and the color violet / blue with shortest wavelength are reflected or scattered more.Because violet and blue are the shortest wavelengths the sky appears to be violet / blue. But because our eyes are more sensitive to blue light than they are violet light, we perceive the sky as blue because the three main color receptors in our eyes are Red,Green and Blue.


  • when light comes from it source sun .it is refracted and refleted.light has seven colours which is known as "SPECTRUM"the blue light has power to scatter.the blue light scattersall over .thus we see ablue shade mostly on sky.


  • blue colour scatters most that why sky looks blue
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  • It's science..but in simple dark and light mixing become blue..


  • Scattering of light. The colour blue can be perceived most by the human eye and hence you see it in blue.
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  • The technically correct answer is that the blue light is scattered by the air molecules in the atmosphere (referred to as Rayleigh scattering). The blue wavelength is scattered more, because the scatteing effect increases with the inverse of the fourth power of the incident wavelength.
    OK, but I've known science graduates who don't understand what this means.
    Here's my attempt at an answer without too much physics:

    I think most people know that sunlight is made up of light of several different wavelengths, and can be split up into the colours of the rainbow. Blue light has the shorter wavelength, and red the longest wavelength.

    When sunlight hits the molecules in the atmosphere, the light is absorbed; causing the molecules vibrate and and give off, or 're-emit' the light. Because the molecules vibrate in all directions, the light is emitted in all directions (called 'scattering'). Because the blue wavelength is shorter and more energetic, it reacts much more with the air molecules than the red and yellow wavelengths; which tend to pass straight through, or get absorbed by the atmosphere (which warms the air and gives rise to the world's climate).

    Because the blue radiation is re-emitted from the air molecules in all directions, and it also gets 'bounced around' from molecule to molecules in this way, it seems to us looking from the ground that the blue light is coming from everywhere; hence the sky seems blue. And of course; we are looking upwards through several kilometres of air; so there are plenty of molecules to scatter the blue light.

    Near sunset, because of the low angle of the sunlight, the blue light has already brrn scattered away, and we see more of the red and yellow wavelendth, hence the colours of the setting sun.

    BTW: The sky isn't blue because of a reflection of the sea. its the other way round. As well as reflecting the blue from the sky at the surface, sea water also scatters the blue light. The blue colour of the sea is a little more complicated, because as well as the water molecules scattering the blue light, the water absorbs more of the red and yellow wavelengths, leaving the blue part of the spectrum, as well as part of the green (which is why deep water can appear bluish-green).
    This scattering effect is even stronger with ice; which results in the intense blue colour we see if we look down a crevasse in a glacier, or down a hole in the snow made by a ski stock..
    My thanks to various contributers for correcting me on some details.

    For complete, scientific explanations, look up 'blue sky' in Wikipedia, and follow through the references.



  • You may already know that sunlight is made up of all the colors of the rainbow: red, orange, yellow, green, blue, and violet. You probably also know that sunlight has to pass through our atmosphere before it reaches our eyes. The gas molecules in the atmosphere break up, or "scatter," the sunlight into its many parts. But they scatter some parts more effectively than others.

    Different colors of light have different energies, or wavelengths. Red light has a long wavelength and a lower energy; blue light has a short wavelength and a higher energy. The gas molecules in the atmosphere scatter the higher-energy blue wavelengths better than the red wavelengths. So the sky looks blue.

    This also explains the brilliant colors of the sunset. Sunlight at dusk or dawn has to travel through an especially thick layer of atmosphere before it reaches your eyes (it's at an angle). As a result, even more higher-energy light is scattered, leaving those beautiful reds, yellows, and oranges.

    FOR MORE DETAIL LOG ON TO :-
    http://www.sciencemadesimple.com/sky_blu...





  • Nobody understands...any help please?
    50 points for someone willing to do this!!!!!!!!!!?


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