The cloud of pinyin and stroke order
Rhyme (pinyin: yún) is a common word in modern Chinese, which was first seen in Oracle Bone Inscriptions.
Horizontal, horizontal, folding, dot? The stroke order of clouds.
The name of the word "cloud" means that when it is cold, water vapor rises and condenses into tiny water droplets, floating in the air in droves; It also refers to talking, high in the sky, in the clouds, or something curled up gently like a cloud.
The implication of naming the cloud character: the name of the cloud character implies extraordinary ambition, broad mind and great future, and implies auspiciousness and connotation.
Cloud, also known as "colorful clouds", is a natural phenomenon and a general term for clouds. This natural phenomenon is due to the rise of humid air. In the process of rising, because the external air pressure decreases with the height, its volume gradually expands, and it consumes its own heat in the process of expansion. In this way, the air rises and cools, forming clouds.
The reasons for the formation of cloud measurement: firstly, the thermal effect. On a sunny summer day, when the sun is strong, the air layer near the ground is heated sharply, and the hot and light air moves upward. The second is that when cold and warm air meet, warm air rising above cold air will also produce thick clouds. The third is the terrain. When advection wet air encounters obstacles from mountains and hills, it will be forced to rise and form clouds.
There are many reasons for the formation of clouds, mainly the rise of wet air. In the process of rising, because the external air pressure decreases with the height, its volume gradually expands, and it consumes its own heat in the process of expansion. In this way, the air will cool as it rises.
However, the ability of air to contain water vapor is limited. At a certain temperature, the water vapor pressure of water vapor contained in unit volume of air is called saturated water vapor pressure. Therefore, as the rising air temperature decreases, its saturated water vapor pressure also decreases.
When the saturated water vapor pressure of the rising air drops, some water vapor will condense into small water droplets with the dust in the air as the core. These small water droplets are small in size, but have a large concentration, and their falling speed in the air is very small, so they can be supported by the updraft in the air. So it can be suspended in the air and become a cloud.