Tuesday, December 6, 2016

The fall of meteorites on the Earth. Dossier – TASS

TASS-FILE. 6 December 2016 in the sky over Khakassia exploded meteorite. Recorded three flash, a rumble was heard in the area of Abakan.

As stated by a member of the Committee on meteorites of the Russian Academy of Sciences, Professor of Ural Federal University Viktor Grokhovsky, a meteorite in the Chelyabinsk significantly less than its “brother”, fell in February 2013 in lake Chebarkul.

Meteorites are called natural solid body of cosmic origin falling on the surface of a large celestial object, such as a planet. Can consist of minerals (stone meteorites), metals (iron) and be of mixed type (iron-stone).

the surface of the Earth reach 9% of the mass of all meteorites. According to some scientists, every year our planet bombarded by a meteor storm of a total mass of about 21.3 to T. According to statistics, the destructive power is only one of 100 thousand meteorites. Most of the found on Earth meteorites have mass from a few grams to a few kilograms.

Most often meteorites fall in Antarctica: according to experts, on the mainland scattered them about 700 thousand There is the largest concentration of meteorites in a limited area of the surface, discovered in 1979, With a massive meteorite weighing more than 60 tons was found in Namibia in 1920, he received the name Goba.

Cases of falling of meteorites on settlements are extremely rare: we only know about a few of these facts. However, only twice falling of a celestial body inflicted wounds people (1954, Alabama, USA; 2004, UK).

First in world history significantly was the fall of the meteorite dates from the 16th of November, 1492, It happened near the French village Ensisheim in the area of the Upper Rhine. A stone fell from the sky, weighed about 127 kg. His fall witnessed numerous eyewitnesses, including the famous German painter and printmaker Albrecht dürer. He sketched this event on a small wooden Board the size of 23х17.

on June 30, 1908 above the pool Podkamennaya Tunguska river in Eastern Siberia, a meteorite fell, later called “Tunguska”. As a result, in the air, when entering the celestial bodies in the dense layers of the atmosphere, explosion with a capacity of about 50 MT of TNT. The shock wave was devastated to 2 thousand sq. km. today found more than 5 thousand of sufficiently large fragments of the Tunguska meteorite.

February 12, 1947 in Primorsky Krai was recorded fall of a meteorite weighing more than 23 tons (one of the ten largest in the world). He was named the Sikhote-alinskiy the name of mountains, over which the scattered meteorite iron rain on the area of 35 sq km.

March 8, 1976 in northeast China, has fallen meteorite weighing over 4 tons was called Kirin.

on 8 February 1969 in the North of Mexico, has fallen meteorite Allende. The fall shattered into many pieces. Contains about 2-3 tonnes of fragments. Allende is the largest carbonaceous meteorite found on Earth.

February 15, 2013 in the area of lake Chebarkul in Chelyabinsk region has fallen meteorite, which received the official name “Chelyabinsk” (also known as “Chebarkul”). The meteor shower was observed by the inhabitants from the five Russian regions – Tyumen, Sverdlovsk, Chelyabinsk, Kurgan regions and Bashkortostan. A large part of the fragments fell into the lake. In October 2013 the city of Chebarkul were raised fragments with a total mass of 654 kg in March 2014 at the bottom of the lake was found the largest piece weighing several tons.

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