kenarman
kenarman
Joined: Nov 22, 2009
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February 16th, 2013 at 6:30:25 AM permalink
Quote: Nareed

Actually a European satellite saw the rock entering the atmosphere. But weather and other science observation sats are not monitored as a high priority by anyone.

But more important, no one currently has the technology to divert a meteorite, much less aiming it precisely enough to hit a particular continent (and don't even think of a particular city!) Any probe big enough (to hold a lot of fuel) to try dong that would be noticed if anyone were watching.



We can't even tow a cruise ship back to port in a reasonable time let alone do anything with a meteor.
Be careful when you follow the masses, the M is sometimes silent.
rxwine
rxwine
Joined: Feb 28, 2010
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February 16th, 2013 at 7:37:39 AM permalink
Quote: 98Clubs

I posted this over at DT about 715AM Forum time (views 700k) with some math. Yield about 7000 metric tones TNT, with shockwave zone about 30km diameter. Only the 12km (7 mi) altitude saved people... had it exploded at say 1km to 1 mile high, there would be a numbers of deaths. When I posted link here views almost 4 million.



Today's story says NASA put it at 32 miles altitude when it blew up, and with the force of 30 Hiroshima bombs.

I would hate to be in a passenger jet under that air space. (unless we lived, then it might be okay, but it doesn't sound like being 7 miles or so closer to it would be a good idea.)
The Hall of Unverified Claims is a vast place with many shelves.
Nareed
Nareed
Joined: Nov 11, 2009
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February 16th, 2013 at 7:46:03 PM permalink
This is worth re-posting here:

I'm not one to panic or overestimate threats. But I think it's high time NASA, ESA, an whatever the Russian and Chinese call their space agencies, to get together and seriously plan a system to 1) detect near Earth asteroids and 2) work out the means to divert them.

The Russian meteor was, in the overall scheme of things, very very minor. But later the same day a much bigger rock passed under 30,000 km from the Earth's surface. That's a near miss. If that asteroid had hit, we would all be huddling for warmth and out hunting for food. And if it hit on the ocean (and there's a lot more ocean than land in this planet we call home), many coastal areas would have been wiped out. Not destroyed. Wiped out. The tsunami produced by such an impact, would make the 06 Asian tsunami look like nothing much.

Oh, any dependable system for deflecting large asteroids would perforce include posting some small nuclear weapons in orbit. Get used to it. There is no way around it, and it's not at all dangerous if some sensible precautions are taken (such as disarming the nuke if it enters the atmosphere).
Donald Trump is a fucking criminal
sodawater
sodawater
Joined: May 14, 2012
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February 16th, 2013 at 9:41:36 PM permalink
Quote: Nareed

This is worth re-posting here:

I'm not one to panic or overestimate threats. But I think it's high time NASA, ESA, an whatever the Russian and Chinese call their space agencies, to get together and seriously plan a system to 1) detect near Earth asteroids and 2) work out the means to divert them.

The Russian meteor was, in the overall scheme of things, very very minor. But later the same day a much bigger rock passed under 30,000 km from the Earth's surface. That's a near miss. If that asteroid had hit, we would all be huddling for warmth and out hunting for food. And if it hit on the ocean (and there's a lot more ocean than land in this planet we call home), many coastal areas would have been wiped out. Not destroyed. Wiped out. The tsunami produced by such an impact, would make the 06 Asian tsunami look like nothing much.

Oh, any dependable system for deflecting large asteroids would perforce include posting some small nuclear weapons in orbit. Get used to it. There is no way around it, and it's not at all dangerous if some sensible precautions are taken (such as disarming the nuke if it enters the atmosphere).



This is one of the most mis-informed posts I have ever seen. I am not going to even bother refuting most of it, but you or whoever wrote this is vastly overstating the size of the asteroid that missed on Friday.

2012 DA14, the one that missed on Friday, was only 50 meters wide. It would have exploded with enough force to destroy maybe half of manhattan, if it had hit there. Of course, the earth is gigantic, and the chances it would hit a densely populated area are very slim.

If it had hit in an ocean, nothing would have happened. It was way too small to cause a tsunami.


2012 DA14 would have produced a blast of about 3.5 megatons. Both the US and the USSR tested nuclear bombs way, way, way bigger than that. The Tsar Bomba was over 50 megatons.

You are confusing this 50-meter asteroid with maybe a 50-kilometer asteroid.
EvenBob
EvenBob
Joined: Jul 18, 2010
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February 17th, 2013 at 1:49:51 AM permalink
Quote: sodawater

if it's big enough it doesn't matter where it hits.



In a universe this big, 'if' is a miniscule word.

Ponder this. Most fiction, books, movies, TV,
whatever, rely heavily on coincidences. Its
what creates the plot line, what keeps it going.
Dickens was a master at the art of coincidence.

Yet in real life, those kinds of coincidences are
extremely rare. I still live in the area where I
went to high school, yet I rarely run into anybody
I know. A few times a year maybe. But books
and movies are chock full of them.

The universe is a very random place, even down
to your daily life. The chances of a meteor striking
the earth and changing our daily lives is so tiny its
incalculable. I'll take that bet..
"It's not enough to succeed, your friends must fail." Gore Vidal
sodawater
sodawater
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February 17th, 2013 at 1:53:20 AM permalink
Yes, I totally agree.
pacomartin
pacomartin
Joined: Jan 14, 2010
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February 17th, 2013 at 5:24:13 AM permalink
Quote: EvenBob

I only know one person who's visited Russia and
he was terrified the whole time he was there
because he was an American.



At one point Columbia South American and Russia were the most violent countries on Earth not at war.


The Institute for Economics and Peace released the sixth edition of their annual Global Peace Index (covering 2011). The report examines 158 third-world, developing and developed nations around the world based on 23 separate indicators that, combined, measure the relative level of internal and external conflict in a country. Here is the ranking of the most violent:
10) Pakistan
9) Israel
8) Central African Republic
7) North Korea
6) Russia ="very little control over corruption make Russia one of the most corrupt countries in the world"
5) Democratic Republic of the Congo
4) Iraq
3) Sudan
2) Afghanistan
1) Somalia


The Most Peaceful ten include 7/10 as small countries in Europe

10) Switzerland
9) Finland
8) Slovenia
7) Ireland
6) Austria
5) Japan
4) Canada
3) New Zealand (tied for 2nd)
2) Denmark (tied for 2nd)
1) Iceland
Best scores on the homicide rate, imports of major conventional weapons and the likelihood of violent demonstrations. The country has no standing army, and military expenses total just over 1% of GDP.
Nareed
Nareed
Joined: Nov 11, 2009
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February 17th, 2013 at 7:46:09 AM permalink
Quote: pacomartin

At one point Columbia South American



Again?

ColUmbia is the name of the district where Washington, Dsitrict of ColUmbia is located. Also it's the name of a NASA shuttle killed, along with her entire crew, by bureaucratic incompetence and stupidity.

ColOmbia is a country in South America.

Of course, this response is completely irrelevant to your point.
Donald Trump is a fucking criminal
AndyGB
AndyGB
Joined: Feb 7, 2013
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February 17th, 2013 at 10:18:41 PM permalink
Quote: EvenBob

I only know one person who's visited Russia and
he was terrified the whole time he was there
because he was an American.



Quote: SOOPOO

I visited Russia about 10 years ago. Moscow and St. Petersburg and a cruise between the two. I never felt unsafe walking around anywhere in Russia. Certainly safer than a sketchy area of any major US city.


I've been to Russia a few times in the past 5 years, Western Russia and a short visit to Siberia (never to Chelyabinsk). My company sends a few hundred travelers there each year. Is it dangerous? Sure, it can be, like New York or Las Vegas or Peoria or anywhere. If you're smart and careful though, to the same degree you'd be anywhere, it is a great place to visit. And it's full of Russian people who as a rule are among the most friendly and welcoming to travelers, in the world.
EvenBob
EvenBob
Joined: Jul 18, 2010
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February 18th, 2013 at 12:42:04 AM permalink
Quote: pacomartin


6) Russia ="very little control over corruption make Russia one of the most corrupt countries in the world"
.



What they mean is zero control over corruption. And
they're exporting it here. Oh boy.

We had the same thing with the Mafia in the first
70 years of the 20th century.
"It's not enough to succeed, your friends must fail." Gore Vidal

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