How is the sky blue?

Answer 1

In the visible light spectrum blue has a shorter wavelength. It is more easily scatter by the particles in the air, hence you see blue. During sunrise and sunset, since the light is traveling through more of the atmosphere the blue light is filtered out and only the longest wavelengths "red, orange" can make it through without being completely absorb by the air.

Answer 2

Here is something interesting to think about: When you look at the sky at night, it is black, with the stars and the moon forming points of light on that black background. So why is it that, during the day, the sky does not remain black with the sun acting as another point of light? Why does the daytime sky turn a bright blue and the stars disappear?

The first thing to recognize is that the sun is an extremely bright source of light -- much brighter than the moon. The second thing to recognize is that the atoms of nitrogen and oxygen in the atmosphere have an effect on the sunlight that passes through them.

There is a physical phenomenon called Rayleigh scattering that causes light to scatter when it passes through particles that have a diameter one-tenth that of the wavelength (color) of the light. Sunlight is made up of all different colors of light, but because of the elements in the atmosphere the color blue is scattered much more efficiently than the other colors.

So when you look at the sky on a clear day, you can see the sun as a bright disk. The blueness you see everywhere else is all of the atoms in the atmosphere scattering blue light toward you. (Because red light, yellow light, green light and the other colors aren't scattered nearly as well, you see the sky as blue.)

Answer 3

When sunlight passes through our atmosphere, the water droplets and other things in the air
diffuse the sunlight. Everything in the air acts like a prism. If you notice the color
spectrum, blue does have the shortest wavelength than red so therefore it does not scatter
or disperse, it comes through and that is what we see. The colors toward the reds have a
longer wavelength and they diffuse or scatter easier than blue, more atmosphere like at
sunrise and sunset gives the reds as the short wavelenghts are bounced away from our eyes.

Answer 4

blue light has a higher frequency then the other colors, that makes it easier to bounce off particles in the sky. at sunset, since the light is coming in from the side, instead of straight up, it has to go through more air and more particles so the other colors also bounce off the particles, which is why sunsets are red and orange and stuff
if anyone says anything like its the reflection of all the oceans, they dont know what they are talking about

Answer 5

It is due to Rayleigh scattering (named after Lord Rayleigh), which is the scattering of light, or other electromagnetic radiation, by particles much smaller than the wavelength of the light. It occurs when light travels in transparent solids and liquids, but is most prominently seen in gases. Rayleigh scattering of sunlight by the atmosphere is the main reason light from the sky is blue.

Answer 6

It is the reflection of the Ocean that makes the sky blue.

Answer 7

The particles in the atmosphere absorb all the colours except blue. The sun gives off pure white light (all of the colours combined).

Answer 8

The atmosphere and the reflection of water.

Answer 9

Due to the scattering of light.