This cloud is so low, is it a visual problem or is it about to rain, but why is the sky so blue?

The shape and height of the clouds have a lot to do with weather conditions, but sometimes it also has to do with visuals.

First, if the clouds appear low, there is a chance that it is an optical illusion. This is because when we look at the clouds from the ground, they appear to be very close because the clouds are so far away from us. This sensation is known as the "cloud near-ground effect," and it causes the cloud to appear lower than it actually is.

However, low clouds don't necessarily mean it's about to rain. The shape and height of clouds depend on many factors, including temperature, humidity, wind speed, and direction, among others. For example, Altocumulus and Stratocumulus clouds often indicate clear weather, while low-hanging clouds may indicate rainfall.

However, even if there are low-hanging clouds in the sky, it does not necessarily mean that it will definitely rain as it also depends on other factors such as humidity, wind speed, and wind direction, among others.

As for why the sky looks so blue, it is because of the result of the atmosphere scattering sunlight. After sunlight enters the atmosphere, light with a shorter wavelength (such as blue light) is more easily scattered than light with a longer wavelength (such as red light), so the sky appears bluer. On a clear day, the blue light in the sunlight is scattered by the atmosphere, making the sky appear bluer.

Overall, the shape and height of clouds are determined by a variety of factors and cannot be explained simply by visuals or weather conditions.

One is that you may be at a high altitude, and the other is that the clouds will look lower when they converge into a large cloud! It won't rain, it's supposed to be this color! It's just that because of air pollution, we don't see blue skies very often.

Are you on the plateau? The clouds on the plateau are relatively low.

It's a visual problem, hahaha.

Maybe the wind blew some of the dust suspended in the atmosphere at night and revealed a clear sky.

This may have something to do with the air in the atmosphere, to put it mildly.

It's all about the season! This is also quite normal in the weather we are experiencing.

Just get used to it.

In a few hundred years, you won't even be able to see the sky, and you are so lucky to be born in the present.

It can be seen that you are a romantic, perfectionist girl.

Fairy tales are perfect, and regrets are life.

Grasp the most beautiful now, and I wish you a happy time

When the sky is like this, many people should cry.

The ideal is very plump, and the reality is very skinny.

2. Because the big dark green umbrella is above my head, so that I can't see the sky, only the dark green of the umbrella.

Gripping describes a speech or performance that deeply touches people's hearts. Because of my grandfather's behavior on a rainy day, I was very touched and warm because of my shoulders getting wet so that I could use an umbrella. It shows my grandfather's love for me.

Visibility is not specific, it is not only related to air quality, but also has a lot to do with climate and regional environment.

Today's smog situation in Beijing, around 240 in the morning, has now come down.

The current weather forecast shows that it is mildly polluted, not severe, and if the haze reaches a very low visibility level, it will be a burst of rhythm.

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.

This is because sunlight is made up of seven colors: red, orange, yellow, green, cyan, blue, and violet. The wavelengths of light in these seven colors are not the same. The ability of dust and other particles in the atmosphere to scatter blue light is greater than the ability to scatter other photons with longer wavelengths, and it is known that the wavelength range of visible light is 400nm (blue-violet light) to 700nm (red light), and the wavelength of the red light end is several times the wavelength of blue-violet light, so the scattering intensity of blue-violet light is close to ten times that of red light, and because the human eye is not very sensitive to violet light, the sky we see is blue.

How do you make me see this problem? The physics teacher just talked about it a few days ago!

Sunlight is composed of seven colors: red, orange, yellow, green, blue, indigo, violet, and decreasing in wavelength, from red to orange.

There is a rule when sunlight travels in the air, that is, the longer the wavelength of the beam, the stronger the ability to pass through various particles in the air, and the shorter the wavelength of the beam, the weaker the ability of the beam to pass through various particles in the air, therefore, the shortest wavelength of blue and violet light is almost all scattered when it passes through the atmosphere, and then through the reflection of various particles in the air, the whole sky looks blue.

By the way, this phenomenon has nothing to do with infrared rays and ultraviolet rays, because infrared rays and ultraviolet rays are invisible to the human eye, even if they are reflected or refracted by the naked eye!