"Wind, wind! You are mighty…" - every fifth grader knows this by heart. What is your power, where does it come from, how are you born yourself, wind-breeze-breeze? Time, as elusive as you, runs and changes century after century, and people all ask the same question: "What is the wind, where does it come from?" Others answer something to them, each in his own way. "The wind is born from the trees," someone says, "the trees sway and drive the air." This version is very cute, but is someone shaking the trees? "Like who?" answers the hero of V. Veresaev's story. "God!"
If this is idle curiosity, it was voiced and forgotten. The wind-breeze is blowing on the street - it means that it is necessary. But what determines your strength and speed, the wind, why are you sometimes light and playful, sometimes angry and cruel? This is already a serious question; it is not for nothing that the best scientific minds are constantly studying what wind is, and on what factors its intensity and direction depend. Thanks to their discoveries, a person today can predict in which direction, fromwhat force do you use. But you don't let yourself be fooled: isn't the surprise effect your favorite game?
Sometimes it seems that there are no secrets here. After all, what is the wind? In short, the movement of the atmosphere. That is, the flow of air molecules from place to place. And what drives these molecules is a topic for a more detailed explanation. In places where warm air accumulates, atmospheric pressure is reduced. The air heated by the sun rises to the upper layers of the atmosphere and cools there, then, according to the principle of circulation, descends, carrying with it an area of high pressure. These temperature differences create the movement of the atmosphere, called the wind. The stronger the drops, the stronger the wind.
Why is it always windy in the mountains and on the coasts? Because in places of contrasting atmospheric pressure, the circulation of warm and cold air currents occurs continuously, only its intensity changes. This is especially noticeable on the seashore, where you, the wind, frolic day and night. And all because the sun heats the land faster, while the water column warms up slowly. A warm wind rises above the ground in streams, giving way to a cold air stream from the water side. And the wind starts to blow. This is the wind from the sea that blows constantly. Although no, at night the reverse movement begins: the land cools faster, and the sea still stores heat, and now the wind changes direction - from the coast to the sea.
You are having fun, wind, because our knowledge is too narrow. There are other hypotheses aboutwhat is wind. There is the so-called Coriolis force, which also characterizes the movement of air currents during the rotation of the Earth. According to the French scientist Gaspard-Gustave Coriolis, our planet rotates at a higher speed than its atmospheric layer, and the air masses are deflected, creating currents. And there are also eternal, or prevailing winds blowing along the equator and from the poles of the Earth.
They say that a person knows three percent of things. Does he know? What do you think, wind-breeze-wind wind? Or we don’t need to know anything, it’s better to dwell on simple knowledge: the wind happens, because the trees sway, and God sways them …
