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time machine! |
fatreg
Joined: Jul 26, 2003
Posts: > 500
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yeehaaa T minus 2 days until we all get engulfed in a black hole!
wooiooo
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max_wedge
Joined: Aug 29, 2004
Posts: > 500
From: Australia
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On 2008-09-04 16:18:35, paul101 wrote:
not only is this the biggest particle collider ever built... its probuably the biggest anything ever built!!!
so, what are we going to learn from this? (exept its ability to destroy the universe)
great wall of china? 
Anyway, I think the fear of the hadron collider creating problems is a little like the early scientists who where critical of steam travel by rail - who claimed that any object travelling faster than 25Kmh (the approx speed of the first commercial steam train) would be crushed by the forces created.
Despite the scientist skeptic's claims, members of the general public took stephenson up on his offer to be among the first people to experience the maiden journey of the worlds first commercial "steam train" (top speed 29Kmh). No one was crushed on board, however one politician got in the way and was run over!
As it turns out we can hurl astronauts into space at faster than 20000kmh and they suffer several g's of acceleration without any lasting affects. 
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masseur
Joined: Jan 03, 2003
Posts: > 500
From: Sydney, London
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imagine if we had inertial dampners!
anyway, according to Cern's News on LHC start-up, there will be a live broadcast of the event from 08:30 on the 10th. I assume thats Central European time.
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Muhammad-Oli
Joined: Jun 13, 2004
Posts: > 500
From: The NZ of L
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There was a guy from CERN on the news here the other night who was having a good laugh at all the people who thought it would be the end of the world. I couldn't really understand his reasoning why it won't happen (nor can I understand people's reasoning for it actually happening), but he pretty much guaranteed there was no danger of such a thing happening.
I think the press and people's uninformed minds take things too far. Just like the iPhone.
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p900 lover
Joined: Jan 08, 2004
Posts: > 500
From: London
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Well to begin that website tapojyoti posted (http://hubblesite.org/hubble_discoveries/dark_energy/ ) is worth a look at and that youtube video Masseur posted is also good, but anyways im looking forward to the 10th and after as there should be some interesting revelations in the near future.
It does make you think thought that if gravity is pulling things towards it then there must be something pulling in the other way(dark mater), or it could be the gravity from another planet/universe. so if that is the case and our universe is moving away from us then gravity form the other universe must be stronger.
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max_wedge
Joined: Aug 29, 2004
Posts: > 500
From: Australia
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On 2008-09-08 15:24:38, masseur wrote:
imagine if we had inertial dampners!
they'd make good replacements for airbags in an auto crash!
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fatreg
Joined: Jul 26, 2003
Posts: > 500
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I still don't get how they know that we won;t all get engulfed, they are accelerating protons, neutons etc to within 20kph of the speed of light, they are then going to collide that a stationary object, the forces involved aren't even fathomable, all I know is I'm glad it's in France/Switzerland, also surely the heat involved is something silly? I know they have cooling pipes of -271c about the place, but things flying about the shop at 670,616,620mph there's going to be a lot more heat than -271c surely?
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gola
Joined: Jul 17, 2007
Posts: > 500
From: South Africa
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hmmm... 
"Getting wisdom is the wisest thing you can do!"
Proverbs 4: 7 |
KingBooker5
Joined: May 12, 2007
Posts: > 500
From: London, England
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On 2008-09-09 08:36:50, fatreg wrote:
I still don't get how they know that we won;t all get engulfed, they are accelerating protons, neutons etc to within 20kph of the speed of light, they are then going to collide that a stationary object, the forces involved aren't even fathomable, all I know is I'm glad it's in France/Switzerland, also surely the heat involved is something silly? I know they have cooling pipes of -271c about the place, but things flying about the shop at 670,616,620mph there's going to be a lot more heat than -271c surely?
There lying.. they just want to keep us calm into the doom! Which takes place tommorow  |
max_wedge
Joined: Aug 29, 2004
Posts: > 500
From: Australia
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On 2008-09-09 08:36:50, fatreg wrote:
I still don't get how they know that we won;t all get engulfed, they are accelerating protons, neutons etc to within 20kph of the speed of light, they are then going to collide that a stationary object, the forces involved aren't even fathomable, all I know is I'm glad it's in France/Switzerland, also surely the heat involved is something silly? I know they have cooling pipes of -271c about the place, but things flying about the shop at 670,616,620mph there's going to be a lot more heat than -271c surely?
that's only 2 degrees above absolute zero - you can't get much colder than that.
The energy within the accererator chamber itself is contained with magnetic fields, most of the heat generated probably comes from the detector plates and innefficiencies in the accelerator equipment itself (energy that doesn't make it into the particle beam).
People said the same thing about runaway nuclear reactions when they were building nuclear bombs and nuclear power plants, but in practice a lot more energy than is available in all the material in the whole of the planet earth would be required to sustain an ongoing nuclear reaction as occurs within stars. (other than those very specific configurations contained within nuclear power plants - and we can be quite sure that the people building LHC had a pretty good idea how to NOT build a nuclear power plant or a nuclear bomb.
Despite the myth, nuclear reactions are not easy things to kick off. Just hammering particles into eachother at high speed does not a nuclear bomb make. The requirements are very specific.
Regarding the fear of black hole creation, where a microscopic blackhole might arise and suck in everything around it, such a thing is not possible without the pressure and density akin to the insides of a collapsing star. The energies produced by the LHC have no chance whatsoever to produce a blackhole that will continue to grow. If it does produce blackholes, they will only last for fractions of a second before evaporating.
If I'm wrong then I may not have a chance to correct myself after today
However one possibility is that the magnetic containment could fail. This would result in a bloody big release of energy (an explosion) but this would not be nuclear in nature, and wouldn't involve any runaway chain reactions.
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[ This Message was edited by: max_wedge on 2008-09-09 10:07 ] |
arien617
Joined: Feb 01, 2006
Posts: > 500
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On 2008-09-09 11:02:06, max_wedge wrote:
and wouldn't involve any runaway chain reactions.
So only the Swiss then?
Phew.
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max_wedge
Joined: Aug 29, 2004
Posts: > 500
From: Australia
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Maybe a few deaths but I'd expect only the few people who might happen to be near the breached section of the chamber. I'm only guessing. I think it's pretty much failsafe. If anything starts to break I think the whole thing would just shutdown.
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masseur
Joined: Jan 03, 2003
Posts: > 500
From: Sydney, London
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well.. we still seem to be here unless its just my imagination!
I just noticed this...
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Lunion
Joined: Jul 14, 2007
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From: East Coast, UK
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http://hasthelargehadroncolliderdestroyedtheworldyet.com/
If you live in a glass house, don't be chuckin stuff about. |
Muhammad-Oli
Joined: Jun 13, 2004
Posts: > 500
From: The NZ of L
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^^^ Hahahaha that's brilliant.
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Posted: 2008-09-08 08:22
