why does the sky appear blue???

Question

its made o air, thats colourless rite??

Answer 1

light is refracted by the air and the blue light is scattered so that the sky appear blue.

Answer 2

If we did not have an atmosphere the sky would look inky black all day and night.
The sky on earth appears blue due to Raleigh Scattering.
Blue photons from the sun are preferentially selected and absorbed by gases in the atmosphere to excite electrons to higher energy levels. This is unstable and the energy is re-radiated as photons of an energy equal to the ones absorbed - equivalent to blue light. So we see these randomly scattered blue photons wherever we are, giving the appearance of a blue sky.
It also explains that the sun appears a yellow colour because blue wavelengths are being taken out of white light. Also, at sunset, light travels at an angle through a thicker layer of atmosphere, more blue is extracted so the sun's colour gets even redder.

Answer 3

Hey Pal,

To answer you in breif and simple,

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.

The white light from the sun is a mixture of all colours of the rainbow. This was demonstrated by Isaac Newton, who used a prism to separate the different colours and so form a spectrum. The colours of light are distinguished by their different wavelengths. The visible part of the spectrum ranges from red light with a wavelength of about 720 nm, to violet with a wavelength of about 380 nm, with orange, yellow, green, blue and indigo between. The three different types of colour receptors in the retina of the human eye respond most strongly to red, green and blue wavelengths, giving us our colour vision.

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Answer 4

The sky is blue because the color is reflected from the ocean.

The color blue penetrates the water the most, thus when water gets deeper it grows to be a richer blue. The other colors and absorbed at the top. Because oceans make up more than half the globe, the sky reflects its colors.

Answer 5

If i can remember from science i think it has something to do with reflection and refraction of light. I am not quite sure, but i remember my teacher from school saying that if something would have not been reflecting the sky would be red.

Answer 6

Refraction of the sun's radiation.

Above a certain altitude, you only see black (outer space).

Once in the Earth'c gravitational field, water droplets refract solar radiation at various wavelengths.

Answer 7

bacuase of the sacttering effect of light in the atmosphere of the earth.

Answer 8

http://www.sciencemadesimple.com/sky_blue.html