Is the sky really blue or is it a different color?

Answer 1

No the sky isn't blue, it is just an illusion. Well technically it is but really that is just how the human body sees it as. The waves from the sun are the color of the rainbow even though we can't see them and they have wave lengths, blue and purple have the shortest wave lengths so they spread out the farthest. This causes the human eye to see it as blue, the farther you are away from something the bluer it is going to look since there is more space in between the two. By the way, this was written by a sixth grader. =]

Answer 2

I think that when the sky has it's moments it can change colors over time. Answer:

The sky can be all diffrent types of colors as long as it gose back to blue at the end of the day. The sky is blue because of light scattering through nitrogen mole cules. Answer: The sky is blue when it is free of clouds and the sun is several degrees off the horizon. The sky at sunrise and sunset may be red or orange*, At night the sky is black

A bit of background: The white light from the sun is a mixture of all colours of the spectrum. Each colour of light ahas a wavelengths. The visible part of the spectrum ranges from red light (wavelength =720 nm), to violet (wavelength =380 nm), with orange, yellow, green, blue and indigo between. The human eye reacts most strongly to strongly to red, green and blue wavelengths. This gives us colour vision. The explanation: Light passing through a clear fluid with suspended particles is scattered. Some wavelengths like blue are scattered more strongly. The first person to notice this and experiment with it was John Tyndall in 1859. So he got to name the effect the Tyndall Effect. He made three important observations: * From the side, (the way we see most of the sunlight in the sky) the beam can be seen by the blue light it scatters * The light seen directly at the end (looking towards the source) is red. This is the way we see the sunlight at sunset

* The scattered light is polarized. This is why polarized sun glasses make some parts of the sky seem darker.

Some early researchers (Tyndall and Rayleigh) thought that the blue colour of the sky must be due to small particles of dust and droplets of water vapour in the sky. Later scientist discounted this and proposed that oxygen and nitrogen molecules are the cause of the scattering.

In 1911 Einstein did the math to prove that the molecules could cause the scattering. Technically the molecules scatter light because the electromagnetic field of the light waves induces electric dipole moments in the O2 and N2 molecules,

Answer 3

The sky appears to be blue because of the suns light being refracted through the atmosphere. There is of course no "absolute" color to the sky as it is perceived differently by different people, at different places, and depending on weather conditions.

Answer 4

The sky appears blue due to the scattering of sunlight by the atmosphere. Different factors such as weather conditions, time of day, and location can affect the color of the sky, leading to variations in hues like orange during sunrise and sunset.

Answer 5

no - it can be many colours but never green

Answer 6

no not all . that's the light from the sun