Disasters TORNADO Tornado исп tornado is perhaps

Disasters TORNADO

Tornado (исп. "tornado") is, perhaps, the most unpredictable force of nature which can destroy everything on the way. The tornado arises under certain atmospheric conditions and everything looks in the form of a trunk in diameter in tens and one hundred the meters, rotating with huge speed and involving in itself that it is possible to carry away. Though the tornado can arise worldwide, more often they arise in the territory of the USA. As a result of the last tornado which has fallen upon states Indiana, Kentucky and Ohio, 28 people were lost already.

Force of a tornado measure on Fudzita. Pearson's scale, developed by doctor Theodor Fudzita for tornado classification, is based on degree of the damage caused by a wind. The word "Tornado" occurs from Spanish and designates turn. The tornado arises under certain atmospheric conditions, in the field of low pressure, during a strong thunder-storm.

The tornado usually arises in a storm cloud and lasts down, is frequent to the surface of the earth, in the form of a trunk in diameter in from several tens to hundred meters. More often tornadoes arise in the territory of the USA. The second «on popularity» the region where there are tornadoes, is Europe. Average diameter of a funnel of a tornado can be 300 — 400 meters though can reach and several kilometers. In a tornado there is an area of strongly rarefied air, and closed filled with gas or air subjects, including structures and buildings, because of a difference of pressure can blow up from within.

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