0
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 mane 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,
What else can I help you with?
Why are glaciers blue?
Glaciers appear blue because the dense ice absorbs red and yellow light, reflecting blue light. This happens because ice crystals scatter light in a way that makes the glacier look blue to our eyes.
Why does planet earth look blue from outer space?
The Earth appears blue from outer space because of the reflection and scattering of sunlight off the oceans and atmosphere. The oceans absorb longer wavelengths of light while reflecting shorter blue wavelengths, and the atmosphere scatters blue light from the sun, resulting in the overall blue appearance.
What color is shown the most on a globe of the world and why?
blue because it is all you can see when you look at a map
Why is the sky blue in a funny way?
The sky appears blue because of a phenomenon called Rayleigh scattering, where shorter blue wavelengths of light are scattered by the gases in the atmosphere. This scattering causes blue light to be more prevalent in our field of vision, giving the sky its blue color. It's not a funny process, but rather a scientific explanation for why the sky looks blue to us.
Why does earth look like a blue marble?
Earth appears blue from space because of its oceans, which cover about 71% of its surface. This vast amount of water reflects and scatters sunlight, giving the planet its characteristic blue appearance. Additionally, the Earth's atmosphere also scatters sunlight, which further contributes to the blue hue when viewed from space.
What colour would blue look in blue light?
It would still look blue :)
Why when you stare at green for a while and then look at white it appears blue?
This phenomenon is known as afterimage, where the cones in the eyes responsible for perceiving green are overstimulated and become fatigued. When you then look at a white background, the signals from these cones are temporarily distorted, causing the brain to perceive a different color, in this case blue.
What does the color lucis blue look like?
it look like a light blue witha ski blue
Is blue whale blue in colour?
Yes but no , the blue whale is blue & gray but they look a fine lite blue under the sea.
What do blue snails look like?
blue snails look like snails but the slimy bit of the snail is blue
Why does the blue moon look blue?
The sun.
What do blue fingernails look like?
Blue fingernails should look fungi infection
On the moon would the sky look blue or black?
On the moon the sky will look blue.
Is Othello responsible for his tragedy or circumstances are responsible?
It depend on the way that you look at the play
How do the blue crytals look in dizzywood?
If u ask me they look stupid they are floating and are purpurlsih blue.
How does a blue whale look like?
It is Blue and Wrinkly
What does a blue blackbird look like?
Blue and Black
