Light shines through a prism, in which this prism disperses light into the several colors of the rainbow. As energy passes, it allows light to travels in waves, just like energy passing through an ocean.
Lights travel in different kind of waves, for example, some being short and rough, while some are long and underactive. Overall, all light likes to travel in a straight line, but sometimes something may get in the way and cause it to reflect, bend, or scatter. Then, this is when the blue light gets scattered all over, in many different directions, by all the molecules in the air.
This explains why we see blue skies most of the time. The picture above shows and explains how the light hits us, but then is also scattered in different directions and that light happens to be blue.
Blue travels in shorter, smaller waves, which is why it is scattered more than the other colors. As I stated before, blue is the most scattered and this is why we see blue skies.
Another question that many people ask is why are sunsets red? Well, as the sun becomes lower and gets closer to the horizon line, the light begins to pass through a larger path in the atmosphere to reach us.
Rays from the sun during mid-day reach the earth straight down, while rays from the sun during sunset are coming more from the side, having a further distance to reach us.
With this being said, the blue light becomes scattered even more, which allows the reds and yellows to pass straight ahead to our eyes. Overall, during sunset, the light that passes through tends to be more focused on the red, orange, and yellow colors, which is why we see and why sunsets are red. This picture shows how different particles affect the scattering of light. This allows us to see the sun appearing different colors and also the sky. In fact, it varies according to f 4.
Atmospheric nitrogen and oxygen scatter violet light most easily, followed by blue light, green light, etc.
So as white light ROYGBIV from the sun passes through our atmosphere, the high frequencies BIV become scattered by atmospheric particles while the lower frequencies ROY are most likely to pass through the atmosphere without a significant alteration in their direction.
This scattering of the higher frequencies of light illuminates the skies with light on the BIV end of the visible spectrum. Compared to blue light, violet light is most easily scattered by atmospheric particles.
However, our eyes are more sensitive to light with blue frequencies. Thus, we view the skies as being blue in color. Meanwhile, the light that is not scattered is able to pass through our atmosphere and reach our eyes in a rather non-interrupted path. The lower frequencies of sunlight ROY tend to reach our eyes as we sight directly at the sun during midday. While sunlight consists of the entire range of frequencies of visible light, not all frequencies are equally intense.
In fact, sunlight tends to be most rich with yellow light frequencies. For these reasons, the sun appears yellow during midday due to the direct passage of dominant amounts of yellow frequencies through our atmosphere and to our eyes.
The appearance of the sun changes with the time of day. While it may be yellow during midday, it is often found to gradually turn color as it approaches sunset. Website: Askamathematician. Surrey Physics Blog. It is blue because the atmosphere scatters short wavelength, high frequency, blue light more than longer wavelength, lower frequency, red light.
Here scatters is a technical term meaning change the direction light moves in. Website: Blogs. Why , Wavelength. Why is the Sky Blue? The blue sky we see is the blue light from the Sun which is re-emitted by the air molecules in all directions by Rayleigh scattering. One other thing that the diagram shows is that violet light has a shorter wavelength than blue and it is scattered even more.
Website: Explainingscience. Why , We , Which , Wavelength. During sunrise or sunset, the sun's light has to pass through more of the atmosphere to reach your eyes. Website: Academia. Website: Factinate. When , Why , We. The title text refers to a mirror image,.
Website: Explainxkcd. Category : Use explain in a sentence. Why is The Sky Blue? The Fact Site. So on a clear day with no clouds, we will see a blue sky because the molecules in the air scatter blue light more so. Website: Thefactsite. Wavelength , With , We , Will. Why is the Sky Blue but not Violet?
Its reason is that the colour of the sky depends upon the atmosphere of a planet. In the atmosphere of the earth, there are gases and other particles. These gases and particles scatter blue light.
Website: Bzuscience. Why , We. Red light waves have the longest wave length and penetrate further into the atmosphere. What is left to observe is the higher energy short wavelength blue light in the the sky.
Refraction can be observed by placing a pencil in a glass of water at an angle. Website: Socratic. Waves , Wave , What , Wavelength , Water. Simple Science Video. The white fluid turns blue because of Tyndall Scattering, an effect closely related to Rayleigh Scattering. Tyndall Scattering, named after renown Irish physicist, John Tyndall, is the phenomena of scattering of light by small particles in a colloid or a very fine suspension.
Website: Rookieparenting. In truth, the reason the sky is blue is because of three simple factors put together: that sunlight is made out of light of many different wavelengths, that Earth's atmosphere is made out of molecules that scatter different-wavelength light by different amounts, and the sensitivity of our eyes.
The blue color of the sky is due to Rayleigh scattering. Blue light is scattered in all directions by the tiny molecules of air in Earth's atmosphere.
Closer to the horizon, the sky fades to a lighter blue or white. Department of Physics 5 hours ago Q: Why is the sky blue? These waves pull back and forth on the electrons in the molecules Website: Van. 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 Website: Math. Shown on top of the blue curve is a model that Website: Tmurphy. PhD candidate in physics 5 hours ago December 31, Scientific American 3 hours ago In a polluted sky , small aerosol particles of sulfate, organic carbon, or mineral dust further amplify the scattering of blue light, making sunsets in polluted conditions sometimes spectacular.
Estimated Reading Time: 4 mins. Estimated Reading Time: 50 secs. The absorbed blue light is then radiated in Website: Conceptualphysicstoday. Physics Stack Exchange 9 hours ago Show activity on this post.
Reviews: 2. The atmosphere is a gaseous sea that contains a variety of types of particles; the two most common types of matter … Website: Physicsclassroom. Physics for Kids YouTube 3 hours ago Jessi and Squeaks love watching clouds and birds fly way up in the sky! Beco Website: Youtube. How nature uses physics to make blue without pigment 7 hours ago The sky is blue , so are several butterflies, birds, spiders, even some fruits.
Physics Forums 5 hours ago Typically one finds the claim that the blue colour of the sky is caused by the scattering of sunlight off the molecules of the atmosphere. So the light scattered down to the earth at a large angle with respect to the direction of User Interaction Count: 9. The way the light waves are scattered Estimated Reading Time: 4 mins. Physics Forums 5 hours ago White light from the sun must travel trough the atmosphere, the atmosphere contains lots of particles.
User Interaction Count: Estimated Reading Time: 40 secs. Physics for Animators 2 hours ago In a similar way, the purple, blue , and green light reflected by the gas molecules in the atmosphere combine to create the familiar blue of the sky.
Estimated Reading Time: 6 mins. Physics Stack Just Now I've read a lot of answers to the questions why the sky is blue. Reviews: 7. Why is the sky blue on Earth, but black in space or on the 5 hours ago Why is the sky blue on Earth, but black in space or on the Moon?
Why is the sky blue: For a 3year old Physics Stack Exchange 7 hours ago BTW asking " why the sky is blue " is astounding for a three year old, I'm sure the kid is almost four! The bottom line three year old explanation is: "air likes to bounce Website: Physics. Physics for Kids 1 hours ago Blue! View count: , Estimated Reading Time: 7 mins. Surrey Physics Blog 6 hours ago Anyway, back to why the sky is blue. The title text refers to a mirror image, Website: Explainxkcd.
The Fact Site 8 hours ago That leaves us to see a blue sky , since blue is the second shortest wavelength! Estimated Reading Time: 3 mins. Socratic 5 hours ago Blue light waves have the shortest wave length so they are refracted the most.
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