why is the sky blue?

Answer 1

The blue color of the sky is due to Rayleigh scattering. As light moves through the atmosphere, most of the longer wavelengths pass straight through. Little of the red, orange and yellow light is affected by the air.

However, much of the shorter wavelength light is absorbed by the gas molecules. The absorbed blue light is then radiated in different directions. It gets scattered all around the sky. Whichever direction you look, some of this scattered blue light reaches you. Since you see the blue light from everywhere overhead, the sky looks blue.

Answer 2

Why is the sky blue?

Its due to Rayleigh scattering - certainly not because its reflecting the ocean which people sometimes say! Rayleigh scattering involved the scattering of light by particles smaller than the wavelength of light. It has a smaller effect on colours with longer wavelengths and that is why the sky is blue - and also in fact why the sun is yellow - if you added up all the blue tint in the sky and focused it in the area of sun you would get its actual colour of bright white.

Physicists used to say that Rayleigh diffraction was responsible for the reddish tint in sunrise and sunset because the light had to travel through more atmosphere to reach us however this is currently disputed and there is another optical theorem at work called 'Lorenz-Mie theory'. Kind regards.

Answer 3

it has to do with the gases such as O2 making up our atmosphere and how the sun reflects off them giving off a blue color

Answer 4

because the light reflecting off dust particals that are encased in dew droplets reflect a blue color

Answer 5

reflection of the ocean

Answer 6

Cos we'd be sick if it were green

Answer 7

because it wont look great if it is pink!

Answer 8

because it isnt red

Answer 9

i like burgars............and pizza too

mmm....arent there any cartoons yet???!!!