Rabu, 20 Februari 2013

Harga Meteor Russia 1 Gram $2,220

The big space rock that crashed into the Ural Mountains last week was the largest in a century, and worth more than its weight in gold

The bad news about the gigantic meteorite that crashed into the central Russian area of Chelyabinsk on Friday — the largest to hit the Earth in more than 100 years — is the unpleasant reminder that "space is out to kill you," says Spencer Ackerman at Wired. And "all the advanced air defenses that humanity has invested in?" The missiles, rockets, and early warning systems are all "useless, useless against a meteorite onslaught." The good news? "Space rocks are lousy shots," and most of the Earth's surface isn't inhabited by mankind. How big and powerful — and valuable — is this particular meteorite? Here's a look, by the numbers:

Diameter of the meteorite, in feet, according to NASA
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Weight of the meteorite, in tons

Amount of energy, in kilotons, put out by the meteor as it neared Earth — 30 times the energy of the atomic bomb that struck Hiroshima
SEE MORE: Everything you need to know about meteor strikes

Injuries reported from the meteorite explosions, mostly from shattered windowpanes

$33 million
Estimated cost of the damage, according to local officials
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Last time a meteorite this large is recorded hitting the Earth, in Tunguska, Siberia

80 million
Trees flattened by the 1908 meteorite
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Estimated speed of Friday's meteor, in miles per hour, before crashing, according to Russian space agency Roscosmos

Typical cruising speed of a Boeing 747, in miles per hour
SEE MORE: Is the asteroid zipping past Earth this week really worth $195 billion?

Diameter of a hole in frozen Lake Chebarkul, believed to be where a large chunk crashed through the ice

"Small, stony, black objects," confirmed as meteorite fragments, that scientists have recovered so far from around Lake Chebarkul
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Price per gram of recovered fragments of the meteorite — 40 times the price of gold — according to Dmitry Kachkalin, a member of the Russian Society of Amateur Meteorite Lovers

Rough estimate of known meteors 100 feet in diameter or bigger that could hit Earth, according to NASA

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