Why is there a white cloud in the sky, and why can you often see a very straight and long white clou

Because the water is heated and evaporated, the steam is lighter than the air, so it will float upward, and the steam rises to a certain height, and the air is cooled by the temperature above, and the amount of water slowly increases, forming clouds.

White clouds are: the formation of a type of water vapor. When we look at the sky, white clouds are formed.

Sister, how did you learn physics.

for the people of the earth are free.

That's the trail left by the Peichong jet after it flew.

The principle of its formation is that the high-temperature bush exhaust gas discharged by the jet aircraft engine contains water vapor, and the temperature of this high-temperature water vapor encounters the surrounding hall and the air temperature is low, and the temperature drops sharply after the heat exchange, and the water vapor condenses into a fog, forming a very straight and long white cloud shape with the flight trajectory of the aircraft.

As follows:

1. The clouds in the sky become very fast, turning into a jumping horse for a while, and a cute rabbit for a while.

2. The clouds in the sky become very fast, turning into teacups for a while, and plates for a while.

3. The clouds in the sky become very fast, turning into goats for a while, and moose imitating deer for a while.

4. The clouds in the sky become very fast, changing into the sun and the moon at one moment.

5. The clouds in the sky become very fast, and one moment becomes a terrible father, and the next moment a gentle mother.

6. The clouds in the sky become very fast, turning into airplanes for a while, and cars for a while.

7. The clouds in the sky become very fast, one moment into a fox, the next into a lion.

Clouds are the basis of precipitation and the intermediate link of the water cycle on the earth, and the occurrence and development of clouds are always accompanied by the exchange of energy. The shape of clouds is ever-changing, and certain cloud patterns often appear with certain weather, so clouds have a certain indicative significance for weather changes.

Conditions for the formation and classification of clouds.

In the atmosphere, the important conditions for condensation are the presence of condensation nuclei and the supersaturation of the air. For the formation of clouds, their supersaturation is mainly caused by adiabatic cooling by the vertical rise of the air. Depending on the form and scale of the upward movement, the state, height, and thickness of the clouds formed are also different.

There are four main ways in which the atmosphere moves up:

1.Thermal convection.

It refers to the upward movement of convection caused by uneven surface heating and unstable atmospheric stratification. Most of the clouds formed by convective movements are cumuliform clouds.

2.Power lift.

It refers to the large-scale upward movement of warm and moist airflow caused by the action of frontal and convergent airflow. The clouds formed by this movement are predominantly stratiform.

3.Atmospheric fluctuations.

Refers to the wave-like motion of the atmosphere over uneven ground or below the inversion layer. Clouds produced by atmospheric fluctuations are mainly undulating clouds.

4.Terrain lift.

It refers to the upward motion caused by the forced uplift of the atmosphere when it is blocked by the terrain during operation. The clouds formed by this movement include cumuliform, undulating and stratiform clouds, often referred to as topographic clouds.

There are white clouds in the sky because the water vapor is gradually cooling, condensing and forming a result. When water vapor encounters some condensation nuclei in the air, such as dust, bacteria, etc., it will form water droplets on its surface, and when the water droplets are large enough, it becomes the white clouds we see.

A white cloud is not a specific substance, but a cloud made up of water molecules. The shape and size of these clouds depend on a variety of factors, such as how the water molecules coalesce, temperature, and humidity in the air. On a clear day, the white clouds look unusually light and soft, and sometimes they take on a variety of strange shapes such as fish, birds, and trees.

At the same time, the white chaotic nuclear cloud is also one of the important indicators of meteorological forecasting. Different types and forms of white clouds can have a significant impact on the weather in the coming days. For example, cirrus clouds at high altitude are often accompanied by the entry of cold air, indicating that the weather is about to turn cooler; Dense cumulus clouds are often accompanied by extreme weather such as thunder and lightning and heavy rain.

Therefore, we can be more accurate about future weather conditions by observing the state of the white clouds.

In addition, Baiyun also has a significance beyond practical value in aesthetics and culture. In poetry, paintings, ** and other literary and artistic works, white clouds are often depicted as something beyond the mundane, or implying hazy, gentle, hope and other symbolic meanings. In addition, white clouds are also considered to be a visual enjoyment and aesthetic experience, especially at sunrise and sunset, the wonderful scene of color and light intertwined, and it is a natural masterpiece that people often admire.

In summary, the presence of white clouds in the sky is formed due to the condensation of water vapor in the air; White clouds are not only an important weather indicator, but also have rich cultural and aesthetic connotations, and have become an indispensable element in people's daily life and artistic creation. <>

Water vapor enters the lower atmosphere from the evaporation surface, where the temperature is high, and if this hot and humid air is lifted, the temperature will gradually decrease, and at a certain height, the water vapor in the air will reach saturation.

If the air continues to be lifted, excess water vapor will be precipitated. If the temperature there is higher than 0, the excess water vapor liquefies into small droplets; If the temperature is below 0, the excess water vapor condenses into Xiaoice crystals.

When these small water droplets and Xiaoice crystals gradually increase to the point where the human eye can recognize them, what we call clouds are formed.

There are white clouds in the sky, and now the environment of national governance is much better, basically you can see the blue sky and white clouds, there are white clouds in the sky, the blue sky is also very blue, and the sky is very beautiful blue sky and white clouds.

There are not always white clouds in the sky, and there are no white clouds in the crisp autumn weather.

In fact, there are white clouds in the sky every day, but sometimes people don't pay attention, and sometimes they can't see it.

In fact, there are white clouds in the sky every day.

Very thick stratiform clouds, or cumulonimbus clouds, where the light of the sun and moon is difficult to penetrate, and the clouds appear very dark; Slightly thinner stratiform and undulating clouds, which appear gray, especially undulating clouds, with more grayish colors at the edges of the clouds; Very thin clouds, light is easy to pass through, especially thin clouds composed of ice crystals, the filaments appear particularly bright in the sun, with a silky luster, and even if there are such stratiform clouds in the sky, ground objects will still reflect shadows in the light of the sun and the moon.

Sometimes the clouds are so thin that they are barely visible, but as long as one or several large rings are found near the sun and moon, it can still be concluded that there are clouds, which are called "Cirrostratus thin curtains".Isolated cumulonial clouds, which appear to be white because of the thicker cloud layer and the sunny side, where the light is almost entirely reflected; On the backlit side and its bottom, the light is not easy to transmit, and it looks grayish and black.

At sunrise and sunset, because the sun's rays are obliquely shining through, passing through a very thick atmosphere, the air molecules, water vapor and impurities make the short-wave part of the light scatter a lot, while the long-wave part of red and orange is not scattered much, so when it hits the lower atmosphere, the long-wave light, especially the red light, accounts for the absolute majority, at this time, not only the sky in the sunrise and sunset direction is red, but even the bottom and edge of the cloud illuminated by it also turn red.

Because the clouds are composed of water droplets, ice crystals, and a mixture of the two, the light of the sun and the moon will also cause all kinds of beautiful halos or iridescent colors when they pass through.