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Asteroid Collision

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Asteroid Collision

Unread postby Stratovarius » Fri 24 Nov 2006, 10:41:04

This is what happens if you cannot divert an asteroid.

http://www.youtube.com/watch?v=38tNJS9lo9I
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Re: Asteroid Collision

Unread postby AWPrime » Fri 24 Nov 2006, 10:56:45

1. That isn't an astroid that is a planetoid.
2. No it won't from a bucket of lava
3. The impact itself will shatter every continantal plate into tiny bits.
4. No building would survive.
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Re: Asteroid Collision

Unread postby emailking » Fri 24 Nov 2006, 16:17:11

That would probably be enough to melt the surface and possibly enough to knock earth out of orbit or at least into a significantly different orbit.
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Re: Asteroid Collision

Unread postby Novus » Fri 24 Nov 2006, 18:27:42

There are a few super large asteroids between 100 and 500 miles wide. They have regular orbits for the most part and are billions of years old. They don't intersect any other orbits and that is why they are still around. Even in astronomical terms their chances of hitting the earth is pretty much zero.
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Re: Asteroid Collision

Unread postby Stratovarius » Fri 24 Nov 2006, 18:33:23

I like how humans just say the odds of something happening is near zero so they don't think about it.

But what if something was like this headed our way and we had no way to stop it. Oops. Billions of people dead and possibly the only advanced civilization in the universe gone.
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Re: Asteroid Collision

Unread postby Novus » Fri 24 Nov 2006, 18:52:25

I love how humans surmise their civilization is the only advanced one in the universe without even thinking about it. If all humans do get wiped out by an asteroid then in the grand scheme of things it is really no big loss.
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Re: Asteroid Collision

Unread postby AWPrime » Fri 24 Nov 2006, 20:57:20

$this->bbcode_second_pass_quote('Novus', 'I') love how humans surmise their civilization is the only advanced one in the universe without even thinking about it. If all humans do get wiped out by an asteroid then in the grand scheme of things it is really no big loss.

Humans no, earth life itself yes.

A collision with such a huge planetoid could rip out a large section of the planet.
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Re: Asteroid Collision

Unread postby Kingcoal » Sat 25 Nov 2006, 00:20:49

Actually, I've come to the conclusion that we should quit worrying about Peak Oil and the like and start worrying about objects hitting the earth. I mean, no oil sucks, but on the suck-o-meter, large impacts definately beat out PO.
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Re: Asteroid Collision

Unread postby Zardoz » Sat 25 Nov 2006, 00:34:00

That "asteroid" was almost as big as the moon. A direct hit like that would pop Earth like a balloon. They didn't model the fantastic increase in the planet's internal pressure at all.

Pretty lame and inaccurate, actually.
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Re: Asteroid Collision

Unread postby Dreamtwister » Sat 25 Nov 2006, 04:41:02

Currently, the "most dangerous" asteroid out there is 1950 DA. It *might* (0.33% chance) be on a collision course in 2880.

Don't we have enough to worry about? Come on.
The whole of human history is a refutation by experiment of the concept of "moral world order". - Friedrich Nietzsche
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Re: Asteroid Collision

Unread postby Novus » Sat 25 Nov 2006, 07:15:23

If you think that asteroid is bad take a look at This. No more earth at all in 6000 years. It bring new meaning to the biblical quote: "And the earth, moon, and sun shall pass away."

Even if it misses us by millions of miles or even billions of miles we would still get sucked into it.

Or it could happen next year if this Experiment goes wrong. The scientists say it is "unlikely" to distroy the earth and the chances of something going wrong is "totally miniscule." Yeah totally. I don't think they should be doing it if it has any chance at all to distroy the Earth.
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Re: Asteroid Collision

Unread postby AWPrime » Sat 25 Nov 2006, 08:36:44

$this->bbcode_second_pass_quote('Novus', 'I')f you think that asteroid is bad take a look at This. No more earth at all in 6000 years. It bring new meaning to the biblical quote: "And the earth, moon, and sun shall pass away."

Even if it misses us by millions of miles or even billions of miles we would still get sucked into it.

Can you find a astrological source that says that it is moving towards us? For I can't.

$this->bbcode_second_pass_quote('', 'O')r it could happen next year if this Experiment goes wrong. The scientists say it is "unlikely" to distroy the earth and the chances of something going wrong is "totally miniscule." Yeah totally. I don't think they should be doing it if it has any chance at all to distroy the Earth.

Those black holes burn themselfs out before they can grow.
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Re: Asteroid Collision

Unread postby EnergyUnlimited » Sat 25 Nov 2006, 10:46:19

$this->bbcode_second_pass_quote('Novus', 'I')f you think that asteroid is bad take a look at This. No more earth at all in 6000 years. It bring new meaning to the biblical quote: "And the earth, moon, and sun shall pass away."

Even if it misses us by millions of miles or even billions of miles we would still get sucked into it.

Or it could happen next year if this Experiment goes wrong. The scientists say it is "unlikely" to distroy the earth and the chances of something going wrong is "totally miniscule." Yeah totally. I don't think they should be doing it if it has any chance at all to distroy the Earth.


Sorry to say, but your speculations about particle accelelator creating black hole/stable strangeletts or some other bizzare Earth devouring entity are plain nonsense.
Every day we receive cosmic radiation particles 9 orders of magnitude as powerful, as any Earth bound machine of current design could possibly create.
Yet look - nothing happens!

You are not understanding words "non zero probability".
There is also non zero probability, that you would survive 1 year in the core of Sun, but yet you do not have to bother yourself about this tiny "chance" given to you.
For all practical purpose you would be burned and coverted ito plasma in first split second.

Massive black hole entering Solar System?

I would give my life to see it. Last few years of spectacle could be reaaly interesting.
Just imagine planetary orbits getting gradually distorted, fantastic opical illusions, when you look towards a hole (those due to gravitaional lensing).
Sadly, you would not be given opportunity to cross an event horizon, to observe so called trapped surface and blue shifted light coming effectively from other Universe and many many briliant features, surely present there unless galactic mass black hole had came...
It is so sad, that I will never see that...may be in my future life, if there is such a thing?

PS. Article, you refferred to contain plenty of misconceptions about black hole. I will not bother to debunk them now.
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Re: Asteroid Collision

Unread postby Stratovarius » Sat 25 Nov 2006, 11:39:50

Black holes are created every single second in Earth's atmosphere. We are bombarded with an incredible amount of cosmic particle and when they hit the atmosphere, the energy released creates a tiny black hole.

The reason they don't "devour" all matter is because due to quantum mechanical randomness, they "evaporate".

This is a book length discussion anyway so I'm dropping it now.
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Re: Asteroid Collision

Unread postby Anthrobus » Sat 25 Nov 2006, 12:06:57

usually (in the movies) everything alien is coming down in the united states or directly on the lawn of the white house. That doesn't sound too threatening to me as a european.

The greek temple in the video was kap sunion i suppose; nice to make it survive an impact of such a magnitung in the video, however unlikely.

The detailed effects of the impact of an object of lesser size would be more interesting.
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Re: Asteroid Collision

Unread postby AWPrime » Sat 25 Nov 2006, 12:29:18

$this->bbcode_second_pass_quote('', '
')You shall have your galactic event...it is called global warming and the fact is it appears to be happening ALL throughout the galaxy...not just earth.

Evidence please?
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Re: Asteroid Collision

Unread postby emailking » Sat 25 Nov 2006, 14:17:41

$this->bbcode_second_pass_quote('Novus', 'I')f you think that asteroid is bad take a look at This. No more earth at all in 6000 years. It bring new meaning to the biblical quote: "And the earth, moon, and sun shall pass away."

Even if it misses us by millions of miles or even billions of miles we would still get sucked into it.


No offense to you Novus, but that article is a piece of crap. First of all, it clearly succumbs to this fallacy that a black hole sucks everything in that gets close. In fact, a black hole is indistinguishable from a start of the same mass if you are outside the would be star's radius. We don't see other stars suddenly being gobbled up by a black hole (just ones already in progress) in a galaxy with 200 billion stars, so the chances that we would be first is incredible. This black hole could come within the vicinity of the solar system and do little that we would notice. If it came charging right through, it could cause some havoc (eg. throwing asteroids every which way), but that's pretty unlikely. They're taking real scientists' words out of context to make a scary article.

The other piece of nonsense is the contention that if we did get gobbled up we might be Ok if there's a white hole on the other side. Utter nonsense. A black hole the size of a soccer ball would stretch you into spaghetti before you even reached the event horizon!
Last edited by emailking on Sat 25 Nov 2006, 14:23:16, edited 1 time in total.
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Re: Asteroid Collision

Unread postby emailking » Sat 25 Nov 2006, 14:21:50

$this->bbcode_second_pass_quote('Stratovarius', 'B')lack holes are created every single second in Earth's atmosphere. We are bombarded with an incredible amount of cosmic particle and when they hit the atmosphere, the energy released creates a tiny black hole.

The reason they don't "devour" all matter is because due to quantum mechanical randomness, they "evaporate".

This is a book length discussion anyway so I'm dropping it now.


For sure a plethora of particles are created when cosmic rays hit the atmosphere, but there is no evidence that black holes are created, nor can I think of a reason why any would be created.
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Re: Asteroid Collision

Unread postby Novus » Sat 25 Nov 2006, 15:56:47

$this->bbcode_second_pass_quote('emailking', '')$this->bbcode_second_pass_quote('Stratovarius', 'B')lack holes are created every single second in Earth's atmosphere. We are bombarded with an incredible amount of cosmic particle and when they hit the atmosphere, the energy released creates a tiny black hole.

The reason they don't "devour" all matter is because due to quantum mechanical randomness, they "evaporate".

This is a book length discussion anyway so I'm dropping it now.


For sure a plethora of particles are created when cosmic rays hit the atmosphere, but there is no evidence that black holes are created, nor can I think of a reason why any would be created.


Indeed, I would really like to see a source on that black holes in the atmoshpere concept.

I already understand Hawking radiation that "evaporates" the backholes. I also understand non-zero probability and that is why the OP video does not scare me in the least.
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