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[SPACE] Meteorite Falls in Eastern Russia, Causes Damage: Reports - Page 18

post #171 of 244
2/16/13 at 9:48am
Is it possible to calculate the thermal energy this meteor produced?
Edited by zefs - 2/16/13 at 9:52am
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post #172 of 244
2/16/13 at 10:04am
Quote:
Originally Posted by zefs View Post

Also, why did Russia sent 20.000 people to collect meteor pieces? to sell them on ebay?

http://curious.astro.cornell.edu/question.php?number=223
Quote:
Meteorites are left-overs from the formation of the solar system. While Earth rock has been reprocessed by geological forces over many eons, most meteorites have never experienced any reprocessing and are just as they were when the solar system was formed. By examining a metorite, we are looking at the chemical composition of the solar system as it was being born.

A few meteorites come to us from the Moon or other planets, such as Mars. When you are holding a piece of martian meteorite in your hand, you are holding an actual real piece of the red planet. By studying these kinds of meteorites, we learn about the geology and atmospheres of other planets at long ago times, when the meteorite was chipped off the planet.

You can grab them from space at the tune of 150 million per rocket launch, or pick them up off the ground for free!
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post #173 of 244
2/16/13 at 10:09am
Yeah so you need 20.000 workers for that job (collecting rock/metal pieces), makes sense.
Edited by zefs - 2/16/13 at 10:12am
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post #174 of 244
2/16/13 at 10:16am
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Quote:
Originally Posted by dogbiscuit View Post

Sounds right
That all sounds right to me, yeah.

Quote:
Originally Posted by dogbiscuit View Post

How did it get so fast ?
Is it just the influence of the Earth's gravity, or do they swing around other planets for acceleration like the man made space probes do ?

Physics could be a really interesting class for you to take, I think you would benefit from the understanding of kinetic energy, and some basic understandings of thermodynamics. And, in this case, astrophysics.

EDIT: quoted wrong person.
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post #175 of 244
2/16/13 at 10:18am
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Quote:
Originally Posted by zefs View Post

Is it possible to calculate the thermal energy this meteor produced?

A general ballpark, yea probably. An exact number? No because base composition, a very accurate measure of initial velocity, air conditions, wind and the exact shape of the object on entry, would all play a role in figuring out how much thermal energy was produced.
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post #176 of 244
2/16/13 at 10:19am
Quote:
Originally Posted by Avonosac View Post


Physics could be a really interesting class for you to take, I think you would benefit from the understanding of kinetic energy, and some basic understandings of thermodynamics. And, in this case, astrophysics.

EDIT: quoted wrong person.

You seem to know enough, can you please make the equtions here so we can compare the energy of that meteor with the atomic bomb of Hiroshima?
Quote:
Originally Posted by Avonosac View Post

A general ballpark, yea probably. An exact number? No because base composition, a very accurate measure of initial velocity, air conditions, wind and the exact shape of the object on entry, would all play a role in figuring out how much thermal energy was produced.

So their measurements are not exact?
Quote:
Nasa estimated that the energy released as the meteor's disintigrated in the atmosphere was 500 kilotons, around 30 times the size of the nuclear bomb dropped on Hiroshima in 1945

Edited by zefs - 2/16/13 at 10:23am
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post #177 of 244
2/16/13 at 10:21am
Quote:
Originally Posted by zefs View Post

Also, why did Russia sent 20.000 people to collect meteor pieces?

Source?

And if it is true, I doubt anyone here would know why.

Edit: Never mind. Found plenty of sources by Googling "Russian meteor 20000". They say it was an emergency response team mobilized for clean-up and rescue. You made it sound like they were sent to just collect meteor pieces. Communicate more clearly. You're acting like you're genuinely inquisitive but you clearly have an agenda which you're too ashamed to plainly state.

Quote:
Originally Posted by zefs View Post

So their measurements are not exact?

Pretty much impossible to have exact measurements in an unplanned, uncontrolled event like this.
Edited by Faraz - 2/16/13 at 10:30am
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post #178 of 244
2/16/13 at 10:30am
i noticed this also leave it to cracked.com to say what i thought lol

http://www.cracked.com/quick-fixes/5-meteor-videos-that-prove-russians-dont-give-f2340k/
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post #179 of 244
2/16/13 at 11:05am
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Quote:
Originally Posted by zefs View Post

You seem to know enough, can you please make the equtions here so we can compare the energy of that meteor with the atomic bomb of Hiroshima?
So their measurements are not exact?

I haven't played around with astrophysics since 2004, I remember the concepts well, but the calculus I can't be arsed to try to remember. What you are talking about is not a simple equation, this is why even NASA estimated it to a very ballpark figure, we just don't have the data to do an exact calculation.

I'm sure their measurements and calculations are quite good, and likely very accurate with the data they were able to collect on the event, but asking for anything more than what they have provided, would likely be impossible.
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post #180 of 244
2/16/13 at 11:33am
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Quote:
Originally Posted by zefs View Post

Quote:
Originally Posted by XNine View Post

The meteorite exploded at about 30 miles above the surface of the earth, pieces could be scattered for hundreds of miles in any direction. Go blow something up in your driveway and tell us if all of the pieces went in the same direction. They won't. As the internal pressure of the meteorite increased and the size of it increased due to its speed, it couldn't structurally support it, thus bursting into bazillions of pieces. Some pieces completely vaporized, some didn't, depends on the size of the pieces.

Now, go shoot a cannon ball into a frozen lake. That cannonball will make a greater hole than its actual size.

This wasn't some weapons test. The explosion created a light that was 10x more bright than the light we get from the sun, there was zero radioactive traces, and there is no weapon on earth that can travel as fast as the meteorite did.

Seriously? So that part of the meteor that dropped by the lake and left a 10 meter hole on it, wouldn't itself explode or leave smaller pieces around the lake like the main meteor ?
I never said that all the pieces should be found around the lake after the main explosion of the meteor, what I am saying is pieces should be found because this meteor part that fell in the lake should have also created smaller pieces.

Also I never said it's a weapon test, it's funny how that you put everyone that has a different opinion other than the "reported facts" into the same bucket of conspiracy theorists or whatever.

It's quite clear that you're eluding to something more sinister than just a meteorite. It's not uncommon for the largest chunk to fly in a completely different trajectory than the fragments that went elsewhere. The meteorite exploded several times, whether it was the main chunk or fragments continuing to explode under the same conditions after they left the larger fragment, I'm not sure that we'll ever know.

And the 20,000 Russians that were sent out weren't just for collecting fragments, they were emergency responders to assess structural damages, help those who were injured, do clean up, assess monetary damages caused. Considering this thing took down a Zinc Factory from the shockwave, it's clear that Russia's government didn't want anything worse to happen. Considering that there were 100's of thousands of people working in areas like Louisiana for Katrina, Japan and Haiti for their earthquakes, 20,000 people isn't an obscene number.
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