Why is the sky blue?

Question

I mean literally, in a scientific way.

Answer 1

its in here somewhere ...this was an answer to another question earlier

I would believe it is a sphere. As a naturalist I have been taught that the earth is surrounded by different spheres. These layers all have different tempretures, gas/chemical composition, wind speed, and particualte amount. All of these factors influance the color of the sky, clouds, sun, and stars as visibal to us. (obvisouly the objects themselves dont change color...we just see it that way...) THis is shown in the "fromation" of rainbows. Thay are formes when it rains. As the droplets reach a certiam point in the sky (i dotn know the evact angle needed to produce the effect) light is refracted causing the spectrum to become visibal. And another interesting tidbit is that rainbows are circular but becasue of the curve of the earth we only see aobut 1/2 of them. Thus another reason to believe the sky is a shere.

Answer 2

The sky is blue partly because air scatters short-wavelength light in preference to longer wavelengths. Combined, these effects scatter (bend away in all directions) some short, blue light waves while allowing almost all longer, red light waves to pass straight through. When we look toward a part of the sky not near the sun, the blue color we see is blue light waves scattered down toward us from the white sunlight passing through the air overhead. Near sunrise and sunset, most of the light we see comes in nearly tangent to the Earth's surface, so that the light's path through the atmosphere is so long that much of the blue and even yellow light is scattered out, leaving the sun rays and the clouds it illuminates red.

Scattering and absorption are major causes of the attenuation of radiation by the atmosphere. Scattering varies as a function of the ratio of the particle diameter to the wavelength of the radiation. When this ratio is less than about one-tenth, Rayleigh scattering occurs in which the scattering coefficient varies inversely as the fourth power of the wavelength. At larger values of the ratio of particle diameter to wavelength, the scattering varies in a complex fashion described, for spherical particles, by the Mie theory; at a ratio of the order of 10, the laws of geometric optics begin to apply.

Answer 3

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 4

The sky is blue because the air in the enviroment has some chemical changes when the sun light passes through it so the sky we see is blue in the morning but is black in the evening.

Answer 5

The sky is blue, because is the reflection of the SEA. The sky its like a mirror during the day, so it reflects the blue color of the sea! Thats why at night all we see is the UNIVERSE and stars, constellations and much more.., and not the color blue. The sun causes the sky to be like a mirror at day, so at night there is no sun, so if there is no sun, then there is no effect.

Answer 6

it does not reflect on the ocean it isthe other way around. when the color spectrum comes down from the sun the blue part gets spread up faster and wider so the sky looks blue u have to b in like the seventh or 8th grade to uderstand just ask ur science teacher

Answer 7

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.

Answer 8

because the blue wave length is scattered by the molecules in the atmosphere more than other color wave lengths. As you get closer to the horizon you may see red and orange sky meaning that there are more molecules in the air that scatter those colors.

Answer 9

the sky is blue because the air particles reflect that the sun which makes it blue.

Answer 10

It doesn't reflect the sea. As sunlight travels through our atmosphere, it's emitting every color within the visible spectrum (~400 - 700nm). The only color absorbed is within the wavelength for a blue color, so we see that absorbed light as blue.