Astronomer

Feb 28, 2013 29 Replies

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Margaret Campbell-Brown, an astronomer at Canada's University of Western Ontario, says that the Russian meteor was "56 feet (17 meters) across, weighed more than 700,000 tons and was moving about 18 kilometers per second (40,000 mph) when it blew apart, she said."



What her saying implies is that, if the meteor was a cube 17x17x17 meters, which is the largest object of 17 meters in size, then its density was 142 tons per cubic meter.



For comparison, gold is only 20 tons per cubic meter.



Am I the only person to vies these numbers with suspicions?



i

It was a reporting mistake, or she misspoke. In another place she was quoted saying it was 7,000 tons:

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-- Ed Huntress

I didi a search on her name and found another site that said the weight was 7,000 tons instead of 700,000 tons.

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So I suspect that CNN got confused by the notation she used , or something like that. My experience with the media is that they are not very accurate.

Dan

Dan

                           Dan

And checking a third site ..........................

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n-century

has it weighing 40 tons.

Dan

Sadly, I agree with you about reporters.

i

You got it figured out quite well.

Gunner

The methodology of the left has always been:

  1. Lie
  2. Repeat the lie as many times as possible
  3. Have as many people repeat the lie as often as possible
  4. Eventually, the uninformed believe the lie
  5. The lie will then be made into some form oflaw
  6. Then everyone must conform to the lie

You may be the only one with a cubic meter of gold to weigh :-)

A cubic meter of gold is worth almost exactly one billion dollars!

It would need a powerful 50k forklift to lift.

i

I just read an estimate that works out to density of around 4, assuming it's a 17m sphere which is ~half (pi/6) the volume of a 17m cube. That suggests it is either a mix of rock and iron, or titanium. jsw

They used the same computer models that they use for global warming.

Extra zeros mean nothing to them.

Articles about fragments from the meteor say the fragments are about

10% iron.

"Grokhovsky said the particles were composed of metallic iron as well as chrysolite and sulfite. While another report in the Inquisitr quoting the same official said the rock is made up of ?ordinary chondrite.?" See [1] (which plays a video that says 10% iron)

"Viktor Grokhovsky, who led the expedition from Urals Federal University, said Monday that 53 fragments of the meteor have been plucked from the ice-covered Chebarkul Lake. He said they are less than a centimeter (half an inch) in size, about 10 percent iron, and belong to the chondrite type, the most common variation of meteorites found on Earth." See [2]

[1] [2] [3]

Only the position of the zeros matter. :)

Weeeeelllllllll actually it's the position of the decimal point .

I'm pretty sure only the 10 of us understood that ...

I was thinking there might be about 1001 that understand.

ROFLMAO!!

The methodology of the left has always been:

  1. Lie
  2. Repeat the lie as many times as possible
  3. Have as many people repeat the lie as often as possible
  4. Eventually, the uninformed believe the lie
  5. The lie will then be made into some form oflaw
  6. Then everyone must conform to the lie

Naw, more likely all FBD5 of us.

I'd reckon that if one had a billion dollars one could afford to buy a forklift to carry it around :-)

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