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Old 18.11.2010, 11:41
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Re: LHC again (Collider thingy underground)

The strength of gravity is determined by the concentration of mass - not the amount of mass. A two-atom black hole would very rapidly acquire more mass by sucking in more atoms. Unless it evaporated.

Not that I've the slightest concern about it actually happening. The energy in each collision is around the same as the calories in half a million chocolate bars.
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  #42  
Old 18.11.2010, 11:46
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Re: LHC again (Collider thingy underground)

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The strength of gravity is determined by the concentration of mass - not the amount of mass. A two-atom black hole would very rapidly acquire more mass by sucking in more atoms. Unless it evaporated.

Not that I've the slightest concern about it actually happening. The energy in each collision is around the same as the calories in half a million chocolate bars.
But only if Hawkins is correct.
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  #43  
Old 18.11.2010, 12:42
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Re: LHC again (Collider thingy underground)

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But only if Hawkins is correct.
Well quite - that's why I put in the "unless".
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  #44  
Old 18.11.2010, 13:03
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Re: LHC again (Collider thingy underground)

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The strength of gravity is determined by the concentration of mass - not the amount of mass.
Er, no. The force of gravity is dependent on the amount of matter (mass). Newton's Law from high school first states this. General Relativity generalises it. It generalises it to consider deformed spacetime and and the paths we follow in this spacetime. A black hole has an event horizon (resulting from dense enough material) within which all paths stay within the horizon.

And the guy's name is Hawking.
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  #45  
Old 18.11.2010, 15:46
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Re: LHC again (Collider thingy underground)

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Er, no. The force of gravity is dependent on the amount of matter (mass). Newton's Law from high school first states this. General Relativity generalises it. It generalises it to consider deformed spacetime and and the paths we follow in this spacetime. A black hole has an event horizon (resulting from dense enough material) within which all paths stay within the horizon.

And the guy's name is Hawking.
Hawking, got it.

Yes but where does matter get mass?
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  #46  
Old 18.11.2010, 15:49
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Re: LHC again (Collider thingy underground)

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The strength of gravity is determined by the concentration of mass - not the amount of mass. A two-atom black hole would very rapidly acquire more mass by sucking in more atoms. Unless it evaporated.

Not that I've the slightest concern about it actually happening. The energy in each collision is around the same as the calories in half a million chocolate bars.

Ummm No...

I doubt a two atom size black hole would have enough power to attract other atoms over the relatively large distances involved.
Nor would the black hole have enough strength to "dismember" or crush down another atom & suck it in.

From today's newspaper "Researchers at the European Nuclear Research Centre (CERN), in Geneva claimed that they had trapped dozens of hydrogen "antimatter" atoms"
Interesting stuff - now anti matter - that could feed people's dreams of world destruction caused by these experiments.....
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  #47  
Old 18.11.2010, 16:57
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Re: LHC again (Collider thingy underground)

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Hawking, got it.

Yes but where does matter get mass?
Migros, like everybodyelse
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Old 18.11.2010, 17:02
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Re: LHC again (Collider thingy underground)

If anyone is interest they just trapped some anti-matter
Ask a Scientist
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  #49  
Old 18.11.2010, 18:01
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Re: LHC again (Collider thingy underground)

A high density black hole of two atoms would yield high gravity to the space around it, but augmented atoms would not have equally high mass or density and the process would eventually decay to negligible density compared to the earth. Its not positive feedback.
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Old 18.11.2010, 21:29
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Re: LHC again (Collider thingy underground)

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A high density black hole of two atoms would yield high gravity to the space around it, but augmented atoms would not have equally high mass or density and the process would eventually decay to negligible density compared to the earth. Its not positive feedback.
...cross your heart and hope to die?
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  #51  
Old 19.11.2010, 17:52
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Re: LHC again (Collider thingy underground)

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...cross your heart and hope to die?
Well, if I am wrong we are all going to die anyway, so I might as well. =)
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  #52  
Old 19.11.2010, 18:01
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Re: LHC again (Collider thingy underground)

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If anyone is interest they just trapped some anti-matter
I trapped some antimatter once - but my mother made me open the matchbox and let it go again
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  #53  
Old 19.11.2010, 18:38
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Re: LHC again (Collider thingy underground)

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Er, no. The force of gravity is dependent on the amount of matter (mass). Newton's Law from high school first states this. General Relativity generalises it. It generalises it to consider deformed spacetime and and the paths we follow in this spacetime. A black hole has an event horizon (resulting from dense enough material) within which all paths stay within the horizon..
Er no. A black hole with the mass of the sun has surface gravity rather more that that of the sun as it is now. It is the density = concentration of mass that matters. (hah!) Which is what I said.
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Old 19.11.2010, 18:51
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Re: LHC again (Collider thingy underground)

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Er no. A black hole with the mass of the sun has surface gravity rather more that that of the sun as it is now. It is the density = concentration of mass that matters. (hah!) Which is what I said.
You talked about the force of gravity which is a classical concept. In relativity, you can use such coarse-grained concepts most of the time but now for what you attempt to refer to.
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Old 19.11.2010, 19:11
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Re: LHC again (Collider thingy underground)

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You talked about the force of gravity which is a classical concept. In relativity, you can use such coarse-grained concepts most of the time but not for what you attempt to refer to.
sounds like eddie's in the space-time continuum again!

will he never learn?


and another thing - when's he going to come and pick up that d@mned sofa?
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  #56  
Old 19.11.2010, 19:57
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Re: LHC again (Collider thingy underground)

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It wont. But if it does you will be dead so you will not care
Of coarse there will be a chain reaction .All this walking around , results in a big Durst then you have to go for beer ,lots of it ,getting happy , and drink more beer ,at closing time you try to get home .Sorry I can`t go on my keyboard is moving
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  #57  
Old 30.08.2011, 18:05
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Re: LHC again (Collider thingy underground)

No God Particle found? (95% sure?)

http://blogs.scientificamerican.com/...ysics-history/
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  #58  
Old 30.08.2011, 18:20
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Re: LHC again (Collider thingy underground)

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I read they just had to try another "range"...

http://www.bbc.co.uk/news/science-environment-14596367


According to Cern, Atlas and CMS have excluded the existence of a Higgs over most of the mass region 145 to 466 GeV with 95% certainty.

The ranges left after these results suggest that the Higgs is either quite a light particle, below about 145 GeV, or a heavy one, above 466 GeV. A couple of islands in the middle, around 250 GeV, have not been fully excluded yet.
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  #59  
Old 04.07.2012, 12:26
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Re: LHC again (Collider thingy underground)

Seems they found something with 5 sigma rating at 126.5 GeV.

LHC worked

Round of applause for everyone
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Old 04.07.2012, 13:05
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Re: LHC again (Collider thingy underground)

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Seems they found something with 5 sigma rating at 126.5 GeV.
Yay

What's that mean then
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