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Author Topic: LHC  (Read 3479 times)
SweetSassyMolassy
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LHC
« on: October 17, 2008, 01:40:28 am »

So, I guess in April now, the Large Hadron Collider is going to be operational again and some really interesting things are undoubtedly going to happen. Maybe a black hole that will swallow us all, or maybe a portal into quasi-space. Anyone have any opinion about the origin and fundamental make up of the universe? Are we all made of tiny strings?
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Elvish Pillager
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Re: LHC
« Reply #1 on: October 17, 2008, 10:01:21 pm »

Maybe a black hole that will swallow us all, or maybe a portal into quasi-space.
The latter is more likely.
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Death 999
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Re: LHC
« Reply #2 on: October 20, 2008, 05:03:36 pm »

The LHC is to the everyday cosmic ray bath we receive as the slightest drizzle is to Niagara falls, both in quantity and in intensity.
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Lukipela
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Re: LHC
« Reply #3 on: October 24, 2008, 06:07:28 am »

The LHC is to the everyday cosmic ray bath we receive as the slightest drizzle is to Niagara falls, both in quantity and in intensity.

Maybe it'll be the drizzle that makes our cup runneth over, causing untold havoc Wink

In any case, while most you have probably seen this it berlongs in any LHC thread.
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Resh Aleph
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Re: LHC
« Reply #4 on: October 24, 2008, 06:31:16 am »

Look what I found, LHC webcams.
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Lukipela
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Re: LHC
« Reply #5 on: October 24, 2008, 02:58:14 pm »

Heh, nice find. So that's why it's been off line for a while...
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Death 999
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Re: LHC
« Reply #6 on: October 24, 2008, 04:45:27 pm »

The LHC is to the everyday cosmic ray bath we receive as the slightest drizzle is to Niagara falls, both in quantity and in intensity.
Maybe it'll be the drizzle that makes our cup runneth over, causing untold havoc Wink

Uh, that's not how it works. But I'm pretty sure you know that.

And if we're swapping YouTube videos on the subject, here's my favorite:

http://www.youtube.com/watch?v=FZCJrMCluwc
« Last Edit: October 24, 2008, 04:50:14 pm by Death 999 » Logged
Alvarin
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Re: LHC
« Reply #7 on: October 25, 2008, 09:51:38 am »

"The scientists have a really nice tradition - every 13.5 billion years they come together and construct a Collider ..."
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SweetSassyMolassy
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Re: LHC
« Reply #8 on: November 17, 2008, 11:46:23 pm »

the slightest drizzle is to Niagara falls, both in quantity and in intensity.
The slightest drizzle to Niagara falls? I assume that's not an exact comparison, but who had the time to calculate that?
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Re: LHC
« Reply #9 on: November 19, 2008, 06:08:56 am »

Quote
but who had the time to calculate that?

I think there are many many bored people out there that would calculate that (I mean it would be kinda fun).

While to my knowledge these collisions happen all of the time, we're just trying to study one in controlled conditions, so no harm done, I would like it to open a quasi space portal and say BOO to the Arilou (Although would it be possible to creep up on an Arilou?).
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Death 999
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Re: LHC
« Reply #10 on: November 19, 2008, 04:09:09 pm »

Well, actually, that comparison is a tremendous understatement of the difference between the two.

The energy of these beams is going to be of order 1 TeV, and will have around 800 million collisions per second. Sounds like a lot.

Every square meter of the Earth's upper atmosphere averages one collision within 0.3% of that energy per second. Even just considering those, we thus have a total collision count per second of 500 trillion. That's almost a factor of a million greater.

But it doesn't end there. The LHC's operating energy is not anything special in the upper atmosphere - the energies go much higher. The energy band in which there are only 800 million collisions per second per GeV is around 100 TeV. So, for every collision the LHC causes, there are not only a million that are the same energy, there's one that's 100 times more powerful in the upper atmosphere. And everything in between, too. That one LHC collision also has  thirty thousand partners at 3 times more power, a thousand partners at 10 times more power, and 30 partners at 30 times more power. And in between those, until we get down to mere GeV separations.

If we're willing to look at events less frequent than the LHC's collisions, it keeps going. There is around one collision above 10^19 eV per square kilometer per year. That means 500 million collisions that are 10 million times more energetic than anything in the LHC hit the earth every year.
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Cattrance
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Re: LHC
« Reply #11 on: November 20, 2008, 01:13:40 am »

Yay! that means my knowledge was not faulty.  Smiley

I am curious as to know whether or not, if there so very many collisions, there is a very small chance (obviously very very very small chance given the vast number of collisions) that there could be a black hole created, well by one of these random particles "Oh no! a black hole formed in the upper atmosphere" hehe. While it would be a very tiny chance I wonder if it has happened... Wait a minute I mean a big bad black hole (sorry I forgot the LHC was creating a tiny one).
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SweetSassyMolassy
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Re: LHC
« Reply #12 on: November 20, 2008, 03:22:58 am »

The black hole is formed after a proton/neutron shockwave cannot overcome the gravity of a star. In the atmosphere, if two protons traveling extremely fast collide with enough energy to compress the atom to neutron star type pressures, the nuclei of the two atoms would just bounce away or blow apart into smaller particles. You need the pressure surrounding the proton/neutrons to overcome this bouncing force, then a black hole forms.
I don't know how the LHC forms black holes. With so many incredibly energetic particles, the shockwave me be contained by another incoming particle?
« Last Edit: November 20, 2008, 03:42:55 pm by SweetSassyMolassy » Logged

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Re: LHC
« Reply #13 on: November 24, 2008, 10:58:08 am »

I don't know how the LHC forms black holes. With so many incredibly energetic particles, the shockwave me be contained by another incoming particle?

It's the dragons. They have very high density.
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