Saturday, August 27, 2011

Grad

Grad poured no more than fifteen minutes. Hail ended as quickly as it began. The entire area around was like a military field of battle. On the trees nearly all the foliage was hit and many branches broken. All that grew on the peasant fields were destroyed and mixed with the ground. The impression that the fields were heavily fired from small caliber guns. Many animals and birds died. Buildings made of cane, turned into a crumpled heap of grass. There were many casualties, killed and maimed by large hailstones. Strong hail been known since ancient times to the chronicles. Happened that not only certain areas, but even countries were hail. How did this formed an unusual form of precipitation arises degrees at an altitude of 5 km and above, where in summer the temperature does not rise above - 15 degrees Celsius. History of Education heavenly ice is reflected in its structure. Cut in half Large hailstones like an onion: it consists of several layers of ice. And so there is an explanation. High in the sky often blow sharp, gusty winds. Falling down the flow of hail this wind picked up and carried back into the sky during these jumps up and down "hailstone acquires new layers of ice. For these layers can count how many times this piece of ice that traveled from the rain clouds in the supercooled atmosphere. Cloud, which could bring hail, you can "learn" more approaching. It is usually "rides" on the wide, black storm cloud. Hail cloud usually takes the form of a high rock with a few sharp peaks. If you look at it through a very strong binoculars or portable telescope, you can see how powerful it pulsate in the vertical flow. Scientists have long searched for a way to prevent hail: shot in the clouds of the guns, were sent to hail clouds missiles with a special filling, these clouds are fired from aircraft. But every time hail fell on the ground and turned the planting of crops in a heap wind-fallen trees, and sometimes maimed people and animals.

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