Why is the sky blue?

Have you ever wondered why the sky is blue on a clear sunny day? The answer to this question is not so complicated and incomprehensible, and we will discuss this issue further.

BingMag.com Why is the sky blue?

Have you ever wondered why the sky is blue on a clear sunny day? The answer to this question is not so complicated and incomprehensible, and we will discuss this issue further.

Why does the earth's sky look blue?

As you probably know, sunlight It looks white, but it actually consists of a spectrum of different colors (rainbow colors). In general, you can convert white light into rainbow colors by using a prism; In general, when white light passes through a prism, this light is converted into all its constituent colors. On the other hand, since light can be described by wave behavior, each color of the rainbow spectrum has a specific wavelength. In other words, different colors of light have different wavelengths. In the meantime, red waves and spectra close to it have a longer wavelength than blue light (with shorter wavelengths)!

BingMag.com Why is the sky blue?

Showing the wavelength of different colors of light; Red has the longest wavelength, while blue has the shortest wavelength.

In general, light travels in a straight line unless something obstructs it or an external factor changes its path. In such a case, light may be reflected (like hitting a mirror), bent (like hitting a prism) or scattered (like hitting gas molecules flying in the atmosphere)! When sunlight reaches the Earth's atmosphere, it is scattered in all directions by all the gases and particles in the air. On the other hand, as mentioned earlier, due to the short wavelength of blue waves compared to other visible light colors, this color is scattered by air particles and molecules more than other colors in sunlight. For this reason, we see the sky as blue most of the time.

Why does the sky turn red at sunset?

When the sun moves towards the horizon at sunset, Sunlight covers more of the atmosphere; In other words, it passes through more atmosphere to reach our eyes! In such a situation, blue or white light is scattered more than before, and the same issue allows red or yellow light to reach our eyes more! Of course, it should be noted that sometimes the reddening of the sunset sky can be caused by more scattering of blue light due to the presence of small particles of dust, pollution or other suspended particles in the air, which create the conditions for the passage of more red and yellow light. The presence of small particles of dust, pollution or other suspended particles in the air can be the reason for more scattering of blue light than other colors in the atmosphere, which is also the condition for the passage of red and yellow light. provides more than before.

Is the sky blue in other planets?

It is interesting to know that the color of the sky of each planet is completely dependent on its atmospheric conditions! For example, Mars has a very thin atmosphere that is mostly made of carbon dioxide and is filled with fine dust particles. Naturally, these tiny particles in the atmosphere of Mars scatter light differently from the gases and particles in the Earth's atmosphere. So, contrary to what we experience on Earth, the sky of Mars is red-orange during the day, and at sunset, the sky around the sun on this red planet is blue-gray!

BingMag.com Why is the sky blue?

The image above shows the orange sky of Mars during the day, in While at the time of sunset, the sky of Mars can be seen in a gray-blue color!

  • 7 great discoveries in the history of science with the help of the subconscious mind

Leave a Reply

Your email address will not be published. Required fields are marked *