whys the sky blue?

Question

whys the sky blue?

Answer 1

The sky isn't really blue. It just LOOKS blue.

Take the sun. If you look straight at the sun you'll see pretty much white - most of the light pretty much goes straight through. But if you look off to one side of the sun, you will see the light that was heading for a different spot, but which then deflected in your direction. It is easier to deflect short (blue) wavelengths than long (red) ones, so most of the time the sky looks blue.

You'll note that when it is low on the horizon (during sunrise and sunset) the sun will often look reddish... now that the sunlight is passing through more of the air, almost everything BUT the red is deflected. You can see where the light is deflected to after the sun goes down - for a while, you can't see the sun but there's still light to see by... all that deflected light!

If you need more proof, think of this - if the sky were really blue, then almost everything you saw through it would be bluish. All the stars would be blue. All the clouds would be blue, and all the snow on the mountain-tops would be blue. In fact, none of these things are always blue... so any blueness you see is probably not a result of the sky itself.

Answer 2

Because the sky reflects the color of the ocean? No, this is not true.

The sky is blue because air scatters short-wavelength light in preference to longer wavelengths. 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.

Answer 3

The sky is blue merely in the time of day time while solar is present day. the solar while gone by using a prism get scattered into seven colorations (VIBGOUR) based on their respective wavelength. The layers of environment acts as a prism for solar. The Violet colour mild is having the smallest wavelength or optimal frequency and therefor scatted the main and provides the colour of sky as blue. The blue colour of sea is as a results of the mirrored image of blue sky. At some region the sea seems to be green or some distinctive colour different than blue. That distinctive colour is as a results of decrease than water plant life in that region that are seen as a results of shallowness of sea there.

Answer 4

Note that the sun is not yellow, but bluish green. We only call it a yellow star because that is the wave-length of the light as it reaches us. The wave length of the light gets shorter as light enters our atmosphere and collides with other particles. The sky "appears" blue because light which has entered our atmosphere collides with other particles and shortens to the blue wave length. Since it has collided with fewer particles than the light directly towards the sun it has not reached the yellow wave length. Towards evening, when the sun is at a longer angle from where you are standing than during the day it reaches an even shorter wave length. The sun doesn't all of a sudden change colors, right?

Answer 5

The rays from the sun are white. As this white light passes through the atmosphere, it is broken up into several colors. The blue and violet part are more scattered, and thus we see a blue sky. I am not a physicist. I looked it up in an encyclopedia.

Answer 6

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 7

How can you not know this??!! There are many particles flying round the skies, Red, Green, blue, you name it, theres one out there. Blue particles reflect the most light and so the sky is blue! Blue particles are hit by White light, from the sun. When the sun "goes down" the other red, orange and yellow particles get hit and that is the sunset

Answer 8

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.

Answer 9

Light coming from the sun is what's called "white light" White light contains all the colors of the rainbow. When it enters Earth's atmosphere this light is separated into its individual colors by chemical elements in the atmosphere and scattered across the sky. Nitrogen is the most abundant element in our atmosphere, and that element scatters the color blue across our sky more than the other colors. In space, there is no atmosphere to separate colors from the white light and space looks black.

Answer 10

Sunlight is made up of millions of colors, but our eyes reflect the blue hue more than any other color, which makes the sky look blue to us. In infrared it sky would look red due to the reflective color would be red.