Wind strength

Wind strength

Always windsinfluenced our civilizationand inspired by mythological stories. Winds help the balloons to travel, and sailing ships to travel long distances across the seas and oceans.

Winds spread the seeds of plants, form reliefs and help the movement of flying animals. But winds can also cause destruction, cause huge waves and increase the scale of fires.

Today we will talk about the strength of the windand how the phenomena associated with it influence our life and nature in various ways.

How does the wind come about?It results from the uneven distribution of atmospheric pressure. "Blowing" is always from the high pressure zone to the low pressure zone. (Photo by Benoit Doppagne | AFP | Getty Images):

Wind

With the height of the wind speed varies greatly. Strong winds of medium duration (about 1 minute) are called squalls. (Photo by NASA):

Wind strength

The most invaluable assistant wind stands insailing. (Photo by Mark Dadswell | Getty Images):

Sailing

Round the worldsailing race Volvo Ocean Race 2011-12. Crews have to sail 40,000 nautical miles before sailing in the port of Galway (Ireland). (Photo Roman | Volvo Ocean Race | AP):

Volvo Ocean Race 2011-12

Kiting is a beautiful water sport, the basis of which is movement on the surface of the water under the action of traction force developed by a kite (held by a sportsman) and controlled by an athlete. To avoid overloading, kitesurfers choose the size of a snake depending on the strength of the wind: the stronger the wind, the smaller the kite. (Photo by Marcelo):

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Another example of using wind power is flying tohot-air balloon:

Balloon

Sandstorm.This atmospheric phenomenon is the transfer of a large amount of dust, soil, sand and wind from the earth's surface. Usually occurs when the wind speed is 10 meters per second or more.

Sandstorm

Sandstorm in Iraq, April 27, 2005:

Sandstorm

Forest fire- uncontrolled (spontaneous) burning. Winds are capable of increasing the scale of a fire. They spread burning branches, other small burning objects and sparks, which create new sources of ignition:

Forest fire

Fire in the US state of Colorado, March 23, 2012. (Photo by Tony Rayl | Yuma Pionee | AP):

Fire in the US state of Colorado

Strong winds can lead to serious destruction of buildings, they are able to break and uproot trees. (Photo by Paul Moseley | The Fort Worth Star-Telegram | AP):

Strong winds

Tornado- an atmospheric vortex that occurs in a thundercloud and spreads downwards, often to the very surface of the earth.The strength of a tornado is measured on the Fujita-Pearson scale, developed by Dr. Theodore Fujita, based on the degree of wind damage. Wind speed in a tornado is huge. (Photo by Mark Schiefelbein | AP):

Tornado and fallen helicopter

This simple device is mainly used in aviation and is located on the take-off field.Windsock- a fabric cone designed to indicate the direction and approximate wind speed. (Photo by Mikael Persson):

Windsock

Feeling of flying at the annual Burning Man festival in the state of Nevada in the Black Rock Desert. (Photo by Andy Barron | Reno Gazette-Journal | AP):

Festival "Burning Man"

The idea to use the power of the wind to generate electrical energy was born in the late 19th century. Now in Europe and the USAhuge windmills- A familiar element of the suburban landscape. These beautiful giants are established not only on the earth, but also on water spaces.

Windmills

Another famous mechanism that transforms wind power into mechanical energy is the windmill. Their best known use is to use flour for grinding. Windmills are one of the symbols of Holland:

Windmills

A 12-point Beaufort scale is used to estimate wind speed. The strongest 12-point wind is a hurricane, at which the average wind speed is> 117 km / h.

Hurricane

But,the strongest winds in the solar systemobserved on Neptune and Saturn. For example, the wind speed on Saturn can reach in places 1,800 km / h. Snapshot of Saturn from Cassini Station:

Saturn

But the strongest winds among the planets of the solar systemraging in the atmosphere of Neptune, and according to some estimates, their speeds can reach 2,100 km / h. Photo of Neptune from Voyager 2:

Neptune

But back to the "peaceful" winds. A beautiful aircraft that uses wind power iskite. It is maintained in air by the pressure of the wind on the surface and is controlled by a raer (cable) from the ground:

Kite

The wind helps the movement of flying animals, in particularsoar- keep in the air on the wings still motionless, leaning on the ascending currents. For birds using soaring flight, large body sizes are characteristic:

Soaring eagle

A soaring flight takes place without active energy consumption from the birds:

Soaring flight

Winds carry the seeds of plants over long distances. The most famous example is dandelion parachute seeds:

Dandelion

The wind is a powerful force of nature, which is able to strongly influence our life, as well as wildlife in general.

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  • Wind strength

    Wind strength

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    Wind strength

    Wind strength

    Wind strength

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    Wind strength