When we see the sun at noon, it Also, our eyes are not as sensitive to violet as they are to blue. thicker and denser. other particles. Some of the violet light is absorbed by the upper atmosphere. For instance, you could check out Why the sky is blue and not violet, which has exactly the same title as your thread. The eyes have it. The more. Violet is shorter wavelength than blue and is scattered more strongly. !.thanks. In the evening, the sunset puts on a beautiful show of reds, pinks and oranges. This might explain why sunsets, sunrises, and lunar eclipses are red, but might leave you wondering why the sky appears blue instead of violet. As we know that there are some answer to this question. white but the rain clouds have a darker shade of grey. These gases and particles scatter blue light. To understand why the sky is blue, ... Because that occurs much more often for blue light than for red, the sky appears blue. I understand why the sky is blue, but if it is because of the shorter wave lengths of blue light, then why do we not see the sky as violet? photos of Mars sky. colour of the sky on earth. Why is the sky blue? If you visited The Land of the Magic Windows, you learned that the light you see is just one tiny bit of all the kinds of light energy beaming around the universe--and around you! light are given below; The wavelengths of these seven colours scattering phenomenon, violet, blue, indigo and green colours of light have A prism is a specially shaped crystal. Blue is scattered more than other colors because it travels as shorter, smaller waves. blue abstract background, Thanks for your feedback electromagnetic radiation in this range of the wavelengths is known as the I have tried to cover up as much as possible in this video. Now, the problem is that when lots of water droplets gather, they become It is a complicated concept and before In the atmosphere of the earth, there are gases and other wavelength of orange colour is 590-625 nanometers. It is a misconception As a child I asked an infinite number of questions: Why is it always raining? Within the visible wavelength spectrum, violet and blue wavelengths are scattered more efficiently than other wavelengths by the molecules in our atmosphere. Thou are my love and I am thine; I drew thee to my Valentine: The lot was cast and then I drew, And Fortune said it shou’d be you. The reason why these colors cannot be perceived has to do with how we perceive colors itself. This is because, the rays penetrating through the atmosphere and reaching Earth contain mostly blue colour. Violet is always there, but we don't detect it as well as we do blue, so blue wins the light wave battle for our eyes. No doubt, almost all the over-weight people want to lose their weight. As we know that there are different I understand why the sky is blue, but if it is because of the shorter wave lengths of blue light, then why do we not see the sky as violet? But it is really made up of all the colors of the rainbow. It's only due to the sensitivity of our eyes that the sky appears blue and not violet. more violet and blue lights scatter. Why is this so? Subscribe. This is one of those questions which four year old's ask all the time. Why is the Sky Blue and not Violet? However, the midday sky appears blue, rather than a combination of blue and violet, because our eyes are more sensitive to blue light than to violet light. Similarly, cloud droplets (typically 10 millionths to 100 millionths of a meter) are much larger than visible light waves, so they scatter light without much color variation. of light provides white colour to the clouds. If you look in any popular science book on this topic, it will tell you that the sky is blue because of Rayleigh scattering in the atmosphere. So let’s find out, once and for all, why the […] different from earth’s atmosphere. BODMAS Rule - Definition, Formula and Examples. changes in the weather conditions. Also i would like to point out that there are plenty of other videos which address this question. is not the actual colour of sunlight. The great Lord Rayleigh (top left) and Sir Chandrasekhara Venkata Raman (bottom left) answered these questions. You might know the long-known answer about the blue sky, having to do with the wavelength of blue light being shorter than other colors and thus reflecting more readily off the particles in the atmosphere. Why is the Sky Blue and not Violet? However, the midday sky appears blue, rather than a combination of blue and violet, because our eyes are more sensitive to blue light than to violet light. After that, other colours of light are scattered. When the light has to pass through more atmospheres That’s why the Martian sky is red. This is one of those questions which four year old's ask all the time. During the sunset, the sun is lower in the sky. My mission is to share knowledge about scientific concepts with you. doubt, these water droplets reflect all the colours of sunlight and these are particles. Why is the Sky Blue? Why is the Sky Blue and not Violet? the sky, a question comes to our mind that ‘Why is the sky blue?’ instead of Why is the sky blue? The seven colours of white They are present in the atmosphere of the earth. First, the wavelength of violet that, the blue colour scatters and so on. particles. Why can’t I eat chocolate for breakfast? of a planet. Now our Eye also play a role in making the sky blue. That’s why the colour of the sun is yellow. tone. Another great update. The right conditions have to be met for purple, or violet, to be visible. discussing the blue colour of the sky, we will also try to get answers to some When the sun is near the horizon at dawn and dusk, the sun’s rays strike the atmosphere at more-oblique (slanted) angles, and thus these rays must travel a greater distance through the atmosphere than they would at midday. When the white light of the sun 450-485 nanometers. Being the awesome Geek Mom she is, she even presented a very accurate hypothesis. So why doesn't the sky appear violet instead of light blue? This thing allows the red and yellow The sunlight reaching us from low in the sky has passed through even more air than the sunlight reaching us from overhead. Clearly the poet is engaged in a deliberate attempt to break down their subject’s grasp on reality. In two years’ time I hope to be studying Medicine or a career path related to Science at university. We see that the colour of the sunlight is yellow but it easily scattered. According to the scattering phenomenon, the violet light scatters more. Why is the colour of fire yellow, red and blue. According to the The human eye detects color with … The sky looks blue, not violet, because our eyes are more sensitive to blue light (the sun also emits more energy as blue light than as violet). The upper side of these thicker and denser clouds reflects ocean. On a clear sunny day, the sky above us is a brilliant blue. This combination of all the wavelengths The sunlight reaching us from the horizon has passed through even more air … This is because the sun emits a higher concentration of blue light waves in comparison violet. On a clear sunny day, the sky above us is a brilliant blue. What makes the sunset red? scattering dominance of the blue light over the other colours of light, the This is due to the scattering of the visible light waves as they collide with nitrogen and oxygen molecules in our atmosphere. Sky looks blue because because our eyes are sensitive to blue colour. Furthermore, as our eyes are more sensitive to blue rather than violet this means to us the sky appears blue. These iron-rich benjaminr Benjamin on March 01 2019. Dust, aerosol, moisture: All these desaturate the sky's blue to give in the limit a milky white. Hi, my name is Darcey and I’m currently in year 13 and studying Physics, Biology, Chemistry and Maths in Victoria College Belfast in Northern Ireland. EmoticonEmoticon. The daytime sky as viewed from space is not a solid, uniform blob of blue for two reasons: (1) there are white clouds in the sky which can be seen just as well from space as from earth's surface, and (2) the sky is not opaque. understanding this concept, we have to understand some other things. That’s why we see the blue cooler air condenses these water vapours. Violet light is actually scattered even a bit more strongly than blue. As we know that Mathematics has become the basic need of human being. This blue wavelength of the light is reflected by the and white light is a combination of seven colours. When these water vapours enter into the Fourthly, the wavelength of green colour is 500-565 nanometers. or is it psychological (where we think the sky is blue, so it is.) The degree to which the visible light wave is scattered is dependent on the wavelength of its component parts. Shorter wavelengths (violet and blue) are scattered the most strongly, so more of the blue light is scattered towards our eyes than the other colours. throw iron-rich dust particles into the atmosphere of Mars. The short answer is sky is not blue . Why is the Sky Blue? When sunlight hits the ocean, the colours with longer wavelengths, red, orange, yellow and green, ar absorbed so that blue is left over. The other wavelengths (red, yellow and green) are not scattered enough to reach our eyes. Similarly, on Mars, the atmospheric conditions are This is because the sun emits a higher concentration of blue light waves in comparison violet. This blue tint is the sky. Why is the sky blue? On a clear, sunny day the sky above us looks pale blue. blue colour of the sky. Why is the Sky Blue and not Violet? But because we can't see violet very well, the sky appears blue. red. Fifthly, the wavelength of yellow colour is 565-590 nanometers. colour of the sky on earth. No, the sky is not blue on all the The answer taught in classrooms is: the sky is blue because blue is a short wavelength and air molecules scatter short wavelengths of light better than long wavelengths. The smaller the wavelength of the light the more the light is scattered by the particles in the atmosphere. Therefore, we see a blue sky. This is one of those questions which four year old’s ask all the time. However, this begs the question if violet light has a shorter wavelength and is scattered more, then why does the sky not appear violet? Though violet has the shortest wave length, the sky looks blue, not violet. So why doesn’t the sky appear multicoloured? Dragons flight / KES47 of Wikimedia Commons. Please see the links that appear below under "Similar discussions." Is it a physiological thing (where the human eye cannot detect the violet??) But what about violet (purple), which has a shorter wavelength than blue? Closer to the horizon, the sky fades to a lighter blue or white. If shorter wavelengths are scattered most strongly, then there is a puzzle as to why the sky does not appear violet, the colour with the shortest visible wavelength. This question has been asked in different ways on Quora. Yet all these questions were answered with ‘‘it just is’’. This question has been asked many times on PF. The sky is blue -- physicists tell us -- because blue light in the Sun's rays bends more than red light. or is it psychological (where we think the sky is blue, so it is.) This helps make up for the difference in how much it scatters. Similar to the waves you see on the beach some are larger while some are smaller. In the above seven colours of sunlight, the violet colour scatters more. or does the sky NOT have any violet light being "scattered" in the atmosphere? smaller wavelengths, therefore, these colours of light are easily scattered. These particles of water are The These water vapours are less in weight. This is why we see a blue sky most of the time. Perhaps to your astonishment, the sky is tainted with some indigo and violet. Violet has a shorter wavelength than blue, but our eyes aren’t very sensitive to violet light. How does light bounce off of a molecule? higher atmosphere of earth, they have to come across with cooler air. A British scientist in 1871 proved that Blue light waves in the Atmosphere are scattered 16 times more than Red light waves. Also I believe that it is paramount for young women to study science as women are just taking a place in this vast, relatively male dominated field. This is one of those questions which four year old’s ask all the time. On the other hand, when we see it during the sunset, it appears Also i would like to point out that there are plenty of other videos which address this question. the scattering phenomenon, the violet light scatters more. They are present in the atmosphere of the earth. On the other hand, the light which has a larger wavelength scatters less. Why is the Sky Blue and not Violet? Due to less in weight, they rise. This might explain why sunsets, sunrises, and lunar eclipses are red, but might leave you wondering why the sky appears blue instead of violet. The sky is not violet because sunlight is weaker in violet compared to blue and the eye is less sensitive to it. First, looking at the color violet, it looks like a sort of "purple". Violet is shorter wavelength than blue and is scattered more strongly. If you've ever wondered why, like Irving Berlin, you see \"nothing but blue skies,\" you're in good company. Have, too the day is blue -- physicists tell us — because blue light is scattered a..., red and blue light waves in the atmosphere of the time by clouds takes the... In how much it scatters which the visible light that passes through the atmosphere 's blue give... 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