What is it: the wind?

Julia Chmykhalo
Julia Chmykhalo
February 3, 2015
What is it: the wind?

Since ancient times, man considered the wind to be one of the fundamental elements and worshiped him. To some extent this was due to the lack of understanding of the processes occurring in nature, as well as the complete lack of control of this element. Moreover, even to this day, we are not able to control this force of nature and are absolutely helpless against even the most insignificant storms or tornadoes. Winds are different: strong and weak, wet and dry, northern, western, southern and eastern. In some regions, for example, in the mountains or in large valleys, the wind blows constantly. In addition, there are winds that cause tornadoes and other deadly cataclysms.

Relatively recently, humanity was able to tame a small part of this element by building windmills, and later electric generators. There are hundreds of power plants around the world that use wind power to supply residential areas or production facilities with electricity.

The wind, which is it in nature and why does it arise?

If you do not know why the wind blows - this is not a problem. It is very simple to describe this process: the wind is air masses that move from the high pressure zone to the lower pressure zone. In addition, the direction of movement of the wind is affected by the constant rotation of our planet, as well as the temperature at certain points of it. It is worth noting that in some places on Earth winds prevail, blowing only in one direction.

To determine what the winds are in a particular region, a vane has been used since ancient times: a small flat hinged figure, which is located on a high stick. Thanks to its special aerodynamic shape, it always turns in the direction of the wind. The wind force can be measured using an anemometer - a special device made of a strong and stable base, as well as a vertical axis on which a freely rotating cross with metal hemispheres at the ends is located. Small holes have been made in them, due to which the movement of a metal cross around its axis begins when the wind blows. By the number of revolutions and determined by the strength of the wind.

Separately, it is worth noting the wind boron. It occurs in places where high mountains are in close proximity to the ocean or sea coast. This type of wind is a source of major damage in many cities in the coastal zone. Boron causes a sharp decrease in temperature, and its speed can reach 80 m / s.