The sky is blue co lour,why?

Answer 1

because blue has the shortest wavelength. The other colors are diffused by atmosphere.



Idiotic Addendum: The sky is the outer gates to the first entrance to heaven, sometimes called the Firmament. It is also the dominion of the smurfs, which lend the sky it's apparent blue color. It is no coincidence that Gargamel and Azrael were fallen angels sent to harass the guardian smurfs. Azrael was the true smurf angel, but due to the arcane cosmogony of the Demi-Smurf(Like the Demiurge, not the Cougar Demi Moore), he appeared to be subordinate to Gargamel. Where is a cat ever subordinate to an humanoid?

Answer 2

When sunlight enters that atmosphere, the light scatters, and the wave length it creates is of a blue color. This scattering can be seen on different scales too. Like when the sun is setting. The sun's angle is much wider and therefore the light travels a great distance to our eyes making the wave length longer. The lowest frequency light in the color spectrum is red, and that's why it's a redish color at sunset and sunrise. The sky being blue is also responsible for why water appears blue most of the time, even though we all know that water is clear.

Answer 3

Why is the sky Blue?

The molecules which make up 99% of the earth's atmosphere do not absorb any wavelengths of visible light. Molecules in the air are not like indigo molecules which absorb red light and give blue cloth its color. Molecules in the air are not pigments. However, molecules in the air do scatter blue light more strongly than red light. This means that white sunlight has its blue components scattered to the side while its red components keep traveling straight. White sunlight bathes the atmosphere of the earth. The sky is blue because molecules in the air scatter blue to your eyes more than they scatter red.

But Why?

But why do molecules in the atmosphere scatter blue light more than red? The oxygen, nitrogen, and water molecules plus the argon atoms that make up most of the air do absorb ultraviolet light, in the region of the spectrum known as UV-C. (It is a good thing they do too, these dangerous germicidal UV wavelengths from the sun are stopped by the atmosphere before they can damage you and become homicidal.) The molecules in the air absorb the ultraviolet because their electron clouds have a resonance frequency in the ultraviolet. This means that if you hit the electron clouds, for example by colliding one atom into a molecule, the electron cloud in the molecule will shake back and forth about the nuclei at a resonant frequency in the ultraviolet.

Hit an atom with electromagnetic radiation and the electron cloud is shaken back and forth at the same frequency as that of the radiation. Shake the atom at resonance and the electron cloud motion builds up until the electromagnetic radiation is absorbed and the electron cloud makes a transition to a higher energy level. Some time after absorption by an atom &emdash;perhaps a hundredth of a microsecond later &emdash; light will be reemitted and the atom goes back to its lowest energy ground state. Often the reemitted light has the same energy and frequency as the absorbed light, however, it may also be reemitted as several lower energy photons. The reemitted light has no phase relationship with the incoming light at all!

When an incident wave of electromagnetic radiation, light, shakes the electron cloud at a frequency far away from resonance, the electron cloud oscillates and reemits light. The reemitted light is not actually absorbed and reemitted, it is slightly delayed, by 10^-15 second or so, so that it has a small phase shift with respect to the incident light. Each time the light passes by an atom, part of it is scattered and comes out with the same frequency or color and a slight phase delay. Since it is delayed by every atom, the net result is a slowing of the apparent speed of light. This is characterized as the index of refraction of a material. The closer the electromagnetic wave is in frequency to the resonant frequency of an atom or molecule, the greater is the amount of light that is scattered by each atom, and also the greater the phase delay.

Blue light is closer in frequency to ultraviolet light than red light , so blue light is scattered more than red light. Quantitatively, the amount of light scattered is proportional to the fourth power of the frequency. So blue light that is twice the frequency of red light is scattered 16 times more strongly. Notice that red light is scattered a little, however it is overwhelmed by the blue scattering.

Why is the sunset red?

When white sunlight passes through a lot of atmosphere the blue is scattered out of the beam leaving the red in the beam. This is why the sky is blue and the setting sun is red.

The scattering occurs at all wavelengths. Violet light is scattered more strongly than blue, but there is less violet than blue in sunlight so the sky is not violet. Indeed there is more yellow and green in sunlight than blue but the combination of the amount of each color present in sunlight times the fraction of power of that wavelength that is scattered makes the sky appear blue.

Answer 4

I made a promise this 3 hundred and sixty 5 days to no longer answer any questins with regards to the colour blue. in spite of the incontrovertible fact that for this reason i might say at the back of blue eyes via the Who Moody blues via Elvis presley Blue international or Blue guitar via the Moody Blues.

Answer 5

Who told you the sky is blue? Do you really know - - - think back as an infant did you truly see the sky and think 'hey it is Blue.' That is a fallacy - - - water & gas have no color - - - they merely reflect the colors of the spectrum - - - what color is the sky at night? Or at sunset. Have you ever been high up in the mountains and felt that you were drowning in white light. The sky is colorless - - - color is in your mind - - - it is how our brains digest information - - - through all of the senses. Experiements have been done where in people smelling salt air thought they were on a beach - - - and their primary color association was blue. BLUE is comforting to most humans thus people tend to see things in hues of blue. Peace..

Answer 6

Sunlight reaches Earth's atmosphere and is scattered in all directions by all the gases and particles in the air. Blue light is scattered in all directions by the tiny molecules of air in Earth's atmosphere. Blue is scattered more than other colors because it travels as shorter, smaller waves. This is why we see a blue sky most of the time.

Answer 7

Rayleigh scattering (named after Lord Rayleigh) 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 8

I noe why..nt cuz god made it that way not watever rubbish.Now, try this experiment out.It's quite interesting! Take an empty box then use a torchlight to flash one of the box's side. If you look at the other sides of the box,it is like the rays of the sun.But if you look at the side which is flashed by the torchlight,it is blue!!!!! This explains y the sky is BLUE!! And the colours of rainbow is actually light!! Go try it out,it's fun as well!

Answer 9

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.

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 10

Because the earth contains so much water. Blue is also one of the highest colors on the spectrum containing a lot of strenght.