Rain's regular script calligraphy regular script, a font of Chinese characters, is also called regular script, regular script, real script and regular script. It gradually evolved from official script, becoming more simplified and more horizontal and vertical.
Brief introduction of rain:
Rain, a natural precipitation phenomenon, is caused by the disturbance of atmospheric circulation, is an indispensable part of the earth's water cycle, and is the only way for almost all terrestrial plants far from rivers to replenish fresh water. Raindrops fall from the sky, big and small, fast and slow. The water on the earth's surface evaporates and rises, and it cools to form rain.
Rainwater is the most important fresh water resource in human life. Rain is water drops falling from the clouds. Water on the surface of land and sea evaporates and becomes steam. When steam rises to a certain height, it becomes small water droplets when it is cold. These small drops of water make up a cloud.
They collide with each other in the cloud and merge into big water droplets. When it is too big for the air, it falls from the clouds and forms rain. Rain is the most important fresh water resource in human life, and plants thrive on the moisture of rain and dew. But the flood caused by rainstorm will also bring great disaster to mankind.
Generation mechanism:
Rain refers to liquid water droplets falling from the atmosphere to the ground. There are many reasons for the rain, and the manifestations are unique, including Mao Mao rain, continuous rain and pouring rain. After the water on the earth is irradiated by sunlight, it becomes steam and is evaporated into the air.
Water vapor condenses into small water droplets when it meets cold air at high altitude. These small water droplets are very small, with a diameter of only 0.0 1 ~ 0.02 mm and a maximum of only 0.2 mm ... They are small and light, and are held up in the air by the updraft in the air. It is these small water droplets that gather in the air to form clouds. These small water droplets will become raindrops and fall to the ground, and the volume will increase by about 1 10,000 times. How did these small water droplets increase their volume to more than 654.38+00,000 times?
It mainly relies on two means, one is condensation and sublimation. The second is to rely on the collision and increase of cloud droplets. In the initial stage of raindrop formation, cloud droplets mainly condense and condense themselves by constantly absorbing water vapor around the cloud. If the water vapor in the cloud can be replenished continuously, the surface of cloud droplets is often in a state of supersaturation.