Why is the sky blue and what is it made of?

It's about light....

Sunlight is made up of seven colors of light, and the effect of the Earth's atmosphere makes the sky appear blue (the same principle as ocean blue).

The ultraviolet rays that enter the atmosphere are absorbed by the large ones, and the red light is generally reflected into outer space, which is not much.

The most blue and lake colors are saved, and they enter the eyes, so they look blue.

Sometimes you can see a different color of the sky.

Did you know that light has seven colors? You know, the sky is blue because the sunlight is dispersed when it passes through the atmosphere, and the blue is refracted so it looks like the sky is blue.

When sunlight passes through the atmosphere, the blue light, which has a shorter wavelength in the color light, is dispersed, so it is blue.

Sunlight is composed of seven types of light: red, orange, yellow, green, cyan, blue, and violet. Among the seven types of light, cyan, blue, and violet wavelengths are shorter and are easily scattered by air molecules and dust.

First of all, understand how light works, as light travels from the sun, it moves up and down like ocean waves, and when the wavelengths come together, we appear as if they are white.

1. The scattered light in the upper altitude is mainly violet, blue, cyan, etc., and for the scattering of air molecules in the lower layer, it is mainly the blue light that is scattered. As a result, the sky we see is azure, and the clearer the weather, the bluer the sky becomes.

2. In clear weather, there will be many tiny dust, water droplets, ice crystals and other substances in the air, when the sunlight passes through the air, the longer wavelength of the sun's red light, orange light, yellow light can penetrate, the atmosphere, directly to the ground, and the shorter wavelength of blue, violet, indigo and other color light, is easily blocked by the particles suspended in the air, so that the light scatters in all directions, making the sky appear blue.

A cloudless blue sky is blue because molecules in the air are more capable of scattering the blue part of the sun's rays than they are able to scatter red light. At dusk we see the sunset taking on a red and orange color as the blue light is scattered and travels beyond the line of sight.

The most common theory that the sky is blue is the scattering of light by the atmosphere, which is made up of gases and other particles that collide with light particles and disperse them in different directions and intensities.

Light is a spectrum of colors made up of seven different wavelengths, including red, orange, yellow, green, blue, indigo, and violet, which have uneven particle distributions. Blue light travels at shorter wavelengths and scatters more than other colors as sunlight passes through the air. Blue also has a higher frequency and more scattering as compared to red.

This scattering and rescattering creates the effect that the sky is blue, with light traveling in all directions in a straight line. In these movements, it collides with gas particles in the atmosphere, as well as other substances, absorbing light and emitting a color similar to that of the light being absorbed.

It is caused by the scattering of sunlight by the atmosphere.

Sunlight is composed of seven kinds of light: red, clear, yellow, green, blue, indigo, and violet, with red light having the longest wavelength and violet light having the shortest wavelength. In the shortwave band, blue light has the most energy and scatters the most light waves, so the sky we see appears blue.

If you want to know why the sky is blue, you need to read more books and learn more about the laws of nature.

This was learned in high school, and in the second year of junior high school, our physics teacher said that blue has a strong dispersion ability.