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Asteroid Killer - Nuking An Earth-Killing Asteroid

Hits: 10601 | Rating: (1.9) | Category: Science | Added by: kitteh9lives
Jump to: Bottom    Last Post
Fatninja01
Male, 18-29, Australia
 24652 Posts
Saturday, February 11, 2012 2:24:35 PM
learning was boring...

Squrlz4Sale
Male, 40-49, Eastern US
 6018 Posts
Saturday, February 11, 2012 1:04:49 PM
All I want to know is, If an Earth-destroying asteroid is headed our way, do I get to play with animal crackers on Liv Tyler's naked body?

beternal
Male, 18-29, Europe
 2396 Posts
Saturday, February 11, 2012 10:49:18 AM
This theory only works with a gravitationally-compacted multi-compositional asteroid... probably not on a solid lump of rock

And his inflections sound like Ross from Friends... last words get the emphasis

daverazor
Male, 50-59, Midwest US
 195 Posts
Saturday, February 11, 2012 10:26:19 AM
And we don't want Iran having a nuke. Look what lives it could possibly save.

Rick_S
Male, 40-49, Eastern US
 3193 Posts
Saturday, February 11, 2012 7:03:12 AM
Cielo is the Number 6 super computer in the world as of 11/11, with about 140,000 processors. Imagine if he had the full power of the Number 1 super computer, which has just over 705,000 processors?

Angilion
Male, 40-49, Europe
 11547 Posts
Friday, February 10, 2012 11:14:41 PM
But what if it's one big chunk of rock left over from a moon or a planet? If a nuke can't destroy it can it at least nudge it out of the way?


Yes, if you can detect it soon enough and get a nuke to it soon enough. Even a nuke won't move a really big asteroid very much, so you have to hit it far enough out for a slight nudge to become a distance of hundreds of thousands of miles by the time it gets here.

The problem is that a rock is damned hard to detect in space. A rock a few miles wide might seem enormous, but in space it's a miniscule speck. In space, *Earth* is a miniscule speck.

Also, rock generally doesn't reflect light very well. So you've got an almost black miniscule speck on a black background, and we're not even looking at most of that background most of the time.

Angilion
Male, 40-49, Europe
 11547 Posts
Friday, February 10, 2012 11:07:24 PM
Congratulations earth, a small asteroid is no longer a threat to us, but what about one the size of texas? Hell, what about rhode island even? Those are still threats.


Yes, but any progress is useful. Larger asteroids are much more rarely a threat to Earth, so any increase in the size we can deal with is a good thing.

We do need to work on something to deal with the bigger ones though, because we know that they have occasionally hit Earth in the past and therefore one might well do so in the future. Probably not any time soon, but "probably" isn't something to rely on when you're talking about something that could destroy human civilisation, maybe even make humans extinct.

TKD_Master
Male, 18-29, Midwest US
 4827 Posts
Friday, February 10, 2012 10:50:57 PM
"But what if it's one big chunk of rock left over from a moon or a planet? If a nuke can't destroy it can it at least nudge it out of the way?"

I'm not a physicist, but logically i do believe a large nuke would be able to produce enough energy to nudge a very large mass that is not in orbit of anything. However, we would have to detect the thing much sooner than a few months. Also another option is just sending a satellite to sit next to the object, close enough that its own gravity modifies the trajectory of the mass. Granted this would require much more foresight than a few months.

TKD_Master
Male, 18-29, Midwest US
 4827 Posts
Friday, February 10, 2012 10:46:26 PM
Canaos, i now realize that your post is most likely in response to FoolsPrussia's post, though one can not know this for sure.

TKD_Master
Male, 18-29, Midwest US
 4827 Posts
Friday, February 10, 2012 10:45:17 PM
""so instead of 1 conglomerate of asteroids you end up with 1000 of smaller city destroying asteroids." "

If it is broken up into small enough pieces, then the asteroids will do no damage to earth. Either the small pieces are moving too fast to survive the atmosphere, or they are moving too slow to do any threatening damage.

TKD_Master
Male, 18-29, Midwest US
 4827 Posts
Friday, February 10, 2012 10:43:37 PM
"at the start he says that the asteroid would be discovered on a very short notice, so redirecting the trajectory would no longer be possible. "

It is a small asteroid, less than a mile long and less than a quarter mile thick. So yes actually we could nearly vaporize such a rock with one small nuclear weapon. Congratulations earth, a small asteroid is no longer a threat to us, but what about one the size of texas? Hell, what about rhode island even? Those are still threats.

msieg007
Male, 18-29, Midwest US
 2171 Posts
Friday, February 10, 2012 8:04:27 PM
I just want to know one thing: Are Bruce Willis and Ben Affleck taken into account in these simulations?

fps_will
Male, 18-29, Western US
 102 Posts
Friday, February 10, 2012 7:12:35 PM
except we would use a 50 megaton bomb

Canoas
Male, 18-29, Europe
 429 Posts
Friday, February 10, 2012 5:04:39 PM
at the start he says that the asteroid would be discovered on a very short notice, so redirecting the trajectory would no longer be possible.

Cajun247
Male, 18-29, Southern US
 10287 Posts
Friday, February 10, 2012 4:53:13 PM
Still leaves one huge chunk.

TheShgn2
Male, 13-17, Southern US
 631 Posts
Friday, February 10, 2012 4:08:59 PM
"so instead of 1 conglomerate of asteroids you end up with 1000 of smaller city destroying asteroids."
A few million people dead is a lot better than a few billion or even advanced life on earth ceasing to exist.

FoolsPrussia
Male, 30-39, Western US
 3399 Posts
Friday, February 10, 2012 4:02:53 PM
"so instead of 1 conglomerate of asteroids you end up with 1000 of smaller city destroying asteroids."

They aren't specific in this video, but most of the asteroid mitigation ideas out there are more about redirecting the trajectory. If he says "mitigation," then he likely took your thought into account.

sjaakwortel
Male, 18-29, Europe
 357 Posts
Friday, February 10, 2012 3:58:48 PM
dont forget that the increased surface means more air resistance. So more of it will burn in the atmosphere.

LazyMe484
Male, 18-29, Canada
 10503 Posts
Friday, February 10, 2012 3:58:05 PM
Makes my i7 look like crap. Too bad I can't afford nor would have any use for such a supercomputer.

xiquiripat
Male, 18-29, Western US
 2419 Posts
Friday, February 10, 2012 3:57:07 PM
But what if it's one big chunk of rock left over from a moon or a planet? If a nuke can't destroy it can it at least nudge it out of the way?

skypirate
Male, 18-29, Southern US
 2073 Posts
Friday, February 10, 2012 3:56:10 PM
32K huh? bet that'll be in the iphone 100

Buzzard250
Male, 18-29, Eastern US
 345 Posts
Friday, February 10, 2012 3:43:33 PM
so instead of 1 conglomerate of asteroids you end up with 1000 of smaller city destroying asteroids.

kitteh9lives
Female, 70 & Over, Eastern US
 1447 Posts
Friday, February 10, 2012 2:11:58 PM
Link: Asteroid Killer - Nuking An Earth-Killing Asteroid [Rate Link] - Los Alamos National Laboratory use a 32,000-processor rig to simulate a nuclear attack against an incoming asteroid.


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