Why the sky is blue, but the sunset is red? video for children

in #steempress5 years ago (edited)

Have you ever wondered why the sky is blue? Yes, the atmosphere is composed of clear air and the sunlight is white. How is it that the sky turns blue and dull during the day with sunlight?



Source
The answer is in the nature of light. White light consists of seven colors of the spectrum: red, orange, yellow, green, blue, blue and violet, each of which corresponds to a certain wavelength. The red light waves are the longest, the oranges are a little shorter ... the violets are the shortest.



Source
As light passes through the atmosphere, it begins to disperse, refracting on the smallest particles of gas, water vapor and dust. But, not all the components of the spectrum are equally dispersed.

The long red waves practically do not disperse to the sides, following the beam to the ground. The shortwave blue light, on the other hand, is very well dispersed at the sides, coloring the whole sky in blue tones.

Why is the sunset red?


During sunrise and sunset, sunlight travels tangentially to the surface of the earth; the distance traveled by the ray through the atmosphere increases significantly.



Source
All short wave light is scattered on the sides for a long time before reaching the observer. Only long orange and red waves reach the earth, which are slightly scattered along the direct rays and color the local part of the sky.


Why is the sky blue? video for children

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Posted from my blog with SteemPress : http://deisip67.vornix.blog/2019/01/10/why-the-sky-is-blue-but-the-sunset-is-red-video-for-children/

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That is so interesting article. The children will really enjoy it. This is a creation of nature. Science have discovered the matter.

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