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  • splanton splanton Feb 15, 2013 7:02 PM Flag

    OT: Russian meteorite = 20 A-bombs...?

    USA Tioday
    (snip):
    While NASA estimated the meteor was only about the size of a bus and weighed an estimated 7,000 tons, it exploded with the force of 20 atomic bombs.

    Luckily, "the atmosphere absorbed the vast majority of that energy," said Amy Mainzer, a scWhile NASA estimated the meteor was only about the size of a bus and weighed an estimated 7,000 tons, it exploded with the force of 20 atomic bombs.

    Luckily, "the atmosphere absorbed the vast majority of that energy," said Amy Mainzer, a scientist at NASA's Jet Propulsion Laboratory.

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    • How come I can't see the seven replies?

    • Hey Splanton, Lewis, et al ... this is Headwind. How are things? I hope everyone is well. I still hold some USU. Haven't read up on the MB or the company lately. Looks like it's still limping along, though.

    • MOSCOW — A meteor that exploded over Russia's Ural Mountains and sent fireballs blazing to Earth has set off a rush to find fragments of the space rock which hunters hope could fetch thousands of dollars apiece.

      Friday's blast and the shock wave that followed shattered windows, injured almost 1,200 people and caused about $33 million worth of damage, said local authorities.

      It also started a "meteorite rush" around the industrial city of Chelyabinsk, 950 miles (1,500 kilometers) east of Moscow, where groups of people have started combing through the snow and ice. One amateur space enthusiast estimated that chunks could be worth anything up to 66,000 rubles ($2,200) per gram — more than 40 times the current cost of gold.

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      "The price is hard to say yet . ... The fewer meteorites that are recovered, the higher their price," said Dmitry Kachkalin, a member of the Russian Society of Amateur Meteorite Lovers. Meteorites are parts of a meteor that have fallen to Earth.

      Scientists at the Urals Federal University were the first to announce a significant find: 53 small, stony, black objects around Lake Chebarkul, near Chelyabinsk, which tests confirmed were small meteorites. The fragments were only 0.5 to 1 centimeter (0.2 to 0.4 inches) across, but the scientists said larger pieces may have crashed into the lake, where a crater in the ice about 8 meters (26 feet) wide opened up after Friday's explosion.

      "We just completed tests, and confirm that the pieces of matter found by our experts around Lake Chebarkul are really meteorites," Viktor Grokhovsky, a scientist with the Urals Federal University and the Russian Academy of Sciences, told the RIA news agency. "These are classified as ordinary chondrites, or stony meteorites, with an iron content of about 10 percent."

      He did not say whether the fragments had told his team anything about the origins of the meteor, which NASA estimated was 55 feet (17 meters) across before entering Earth's atmosphere and weighed about 10,000 tons.

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    • Daily Telegraph this am says "40" Hiroshima-type bombs.... 8-0 Stan

 
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