There are tens of millions of buildings in Ande, which greatly protect all the smiles of the poor in the world, and the wind and rain are as quiet as mountains. Looking back at the bleak place in Du Fu's Cottage Blown by Autumn Wind, it's gone forever, rain or shine. Su Shi's "gathering storms, not listening to the sound of beating leaves through the forest". The storm in Zhongshan is yellow, and millions of heroes cross the river. Mao Zedong's Seven Laws: China People's Liberation Army occupied Nanking.
A harp sighs all night, with the sadness of wind and rain on its strings. Wei Zhuang's "A Night's Thinking on the Terrace", now I think of that night, the wind and rain, and I don't know how many flowers have been folded. Meng Haoran's "Spring Dawn" sends spring home after the storm, and snow flies to welcome the spring. Mao Zedong's "Yongmei" has no way to escape, and the storm is like a rock, and the hometown is dark. Lu Xun's self-titled portrait is in full bloom, and the jealousy of flowers will push each other. Zhu's "Falling Flowers"
What is the phenomenon of wind, rain and lightning?
Natural phenomena of climate; Wind is a common natural phenomenon in daily life. Air flow becomes wind, and wind is invisible air flow; Rain comes from clouds, and small water droplets or crystals in the clouds collide with each other and merge to form raindrops. The updraft couldn't hold on, so it fell from the sky and turned into rain.
The sound wave degenerated from the shock wave generated by the rapid expansion of lightning channel is characterized by the rumble accompanied by lightning phenomenon. Electricity is a phenomenon that repulsive force and attractive force are generated between subatomic particles such as electrons and protons. ...
How are natural phenomena, wind, rain, thunder and lightning formed?
The cause of the wind. The direct cause of wind is the horizontal pressure gradient force. Wind is comprehensively influenced by different factors such as atmospheric circulation, topography and water area, and its manifestations are various, such as monsoon, local sea-land wind, valley wind and foehn wind. Simply put, wind is the movement of air molecules.
To understand the causes of wind, we must first understand two key concepts: air and air pressure. The components of air include nitrogen molecules (accounting for 78% of the total air volume), oxygen molecules (accounting for about 2 1%), water vapor and other trace components.
Air pressure can be defined as the pressure exerted by air molecules in a given area. Generally speaking, the more air molecules exist in an area, the greater the air pressure in this area. Accordingly, wind is the result of pressure gradient force.