End of the World on Sept. 10th
03 September 2008, 03:39 PM
#121
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If anyone wants to experience critical mass occurring due to over-excited particles they only have to view some of the threads in NSR... I don't know what all the fuss is about 
I think OllyK is a (over)critical mass all on his own
I think OllyK is a (over)critical mass all on his own
04 September 2008, 12:52 PM
#122
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We don't need the energy from a mass sufficient to form the universe to cause great damage to our own planet. Incidentally, the scientists tell us that the mass which initiated the big bang was the size of a pea although of super dense material. Do we actually know how much energy is available from the mass which they will be giving a bit of stick on the 10th? Could it draw on energy from surrounding items to really jazz the overall effect up since they might get that close to the big bang scenario?
I freely admit that I am not that deeply into quantum mechanics, but the thought of that experiment does worry me-obviously! I did get a reasonable amount of necessary training in the handling etc of nuclear weapons-great big ones too!
Les
04 September 2008, 01:14 PM
#123
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I'd have thought that the total energy would be E=mc^2 for the mass of the particles actually being accelerated, plus their kinetic energy (which I'm sure is more than the usual 1/2 mv^2, but since all of it has to come from the LHC's electrical supply then there is a distinct upper limit on it).
04 September 2008, 01:56 PM
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Incidentally, the scientists tell us that the mass which initiated the big bang was the size of a pea although of super dense material.
Do we actually know how much energy is available from the mass which they will be giving a bit of stick on the 10th?
Could it draw on energy from surrounding items to really jazz the overall effect up since they might get that close to the big bang scenario?
I freely admit that I am not that deeply into quantum mechanics, but the thought of that experiment does worry me-obviously! I did get a reasonable amount of necessary training in the handling etc of nuclear weapons-great big ones too!
Les
Les
If you're worried about something else how do you handle it? Carry on worrying about it until the day you die, or look in to the matter and figure out what's going on?
04 September 2008, 08:02 PM
#132
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BBC 4 now.....might be interesting to some of the commenters of this thread
20:00 - 21:00
Theories on big bang
21:00 - 22:00
The big bang machine - looking at CERNS Large Hadron Colider
20:00 - 21:00
Theories on big bang
21:00 - 22:00
The big bang machine - looking at CERNS Large Hadron Colider
Last edited by Wizzbang; 04 September 2008 at 08:06 PM.
04 September 2008, 09:40 PM
#134
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God it hurts my brain trying to understand all this. 
Everything in creation was once condensed into a particle the size of a pea.
But, but but....how?
Everything in creation was once condensed into a particle the size of a pea.
But, but but....how?
04 September 2008, 09:48 PM
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04 September 2008, 10:55 PM
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04 September 2008, 11:16 PM
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04 September 2008, 11:20 PM
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It has been widely postulated that the human mind is simply not equipped to understand the nature of 'what is about us'...
Last edited by unclebuck; 04 September 2008 at 11:23 PM.
04 September 2008, 11:36 PM
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04 September 2008, 11:43 PM
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05 September 2008, 08:28 AM
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watched that program and came up with my own "theory"
the universe was created from a big bang by god (bear with me)
we could possible be about to create a big bang that could create a universe.
we become god,
throw into the mix a few time traveling black holes and we end up stuck in a continuous loop where by every few millions of years, we become advanced enough to build a machine big enough to create a new black hole,
and repeat for ever
was trying to explain my idea to the missus (who is a science teacher) and it baffled her
i`m sure you lot might "get it"
the universe was created from a big bang by god (bear with me)
we could possible be about to create a big bang that could create a universe.
we become god,
throw into the mix a few time traveling black holes and we end up stuck in a continuous loop where by every few millions of years, we become advanced enough to build a machine big enough to create a new black hole,
and repeat for ever
was trying to explain my idea to the missus (who is a science teacher) and it baffled her
i`m sure you lot might "get it"
05 September 2008, 08:50 AM
#147
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From the New Scientist....
"Well, the smallest possible black hole is around 10-35 metres across (the so-called Planck Length). Anything smaller just gets wiped out by the quantum fluctuations in space-time around it. But even such a tiny black hole would weigh around 10 micrograms—about the same as a speck of dust. To create objects with so much mass by collisions in a particle accelerator demands energies of 1019 giga-electronvolts, so the most powerful existing collider is ten million billion times too feeble to make a black hole. Scaling up today's technology, we would need an accelerator as big as the Galaxy to do it.
And even then, the resulting black hole wouldn't be big enough to swallow the Earth. Such a tiny black hole would evaporate in 10-42 seconds in a blast of Hawking radiation, a process discovered by Stephen Hawking in the 1970s. To last long enough even to begin sucking in matter rather than going off pop, a black hole would have to be many orders of magnitude bigger. According to Cliff Pickover, author of Black Holes: A Traveler's Guide, "Even a black hole with the mass of Mount Everest would have a radius of only about 10-15 metres, roughly the size of an atomic nucleus. Current thinking is that it would be hard for such a black hole to swallow anything at all—even consuming a proton or neutron would be difficult."
That seems fairly clear then! Switch it on an expand our knowledge, let the doom mongers carry on worrying themselves
Geezer
"Well, the smallest possible black hole is around 10-35 metres across (the so-called Planck Length). Anything smaller just gets wiped out by the quantum fluctuations in space-time around it. But even such a tiny black hole would weigh around 10 micrograms—about the same as a speck of dust. To create objects with so much mass by collisions in a particle accelerator demands energies of 1019 giga-electronvolts, so the most powerful existing collider is ten million billion times too feeble to make a black hole. Scaling up today's technology, we would need an accelerator as big as the Galaxy to do it.
And even then, the resulting black hole wouldn't be big enough to swallow the Earth. Such a tiny black hole would evaporate in 10-42 seconds in a blast of Hawking radiation, a process discovered by Stephen Hawking in the 1970s. To last long enough even to begin sucking in matter rather than going off pop, a black hole would have to be many orders of magnitude bigger. According to Cliff Pickover, author of Black Holes: A Traveler's Guide, "Even a black hole with the mass of Mount Everest would have a radius of only about 10-15 metres, roughly the size of an atomic nucleus. Current thinking is that it would be hard for such a black hole to swallow anything at all—even consuming a proton or neutron would be difficult."
That seems fairly clear then! Switch it on an expand our knowledge, let the doom mongers carry on worrying themselves
Geezer
05 September 2008, 08:54 AM
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05 September 2008, 09:00 AM
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watched that program and came up with my own "theory"
the universe was created from a big bang by god (bear with me)
we could possible be about to create a big bang that could create a universe.
we become god,
throw into the mix a few time traveling black holes and we end up stuck in a continuous loop where by every few millions of years, we become advanced enough to build a machine big enough to create a new black hole,
and repeat for ever
was trying to explain my idea to the missus (who is a science teacher) and it baffled her
i`m sure you lot might "get it"
the universe was created from a big bang by god (bear with me)
we could possible be about to create a big bang that could create a universe.
we become god,
throw into the mix a few time traveling black holes and we end up stuck in a continuous loop where by every few millions of years, we become advanced enough to build a machine big enough to create a new black hole,
and repeat for ever
was trying to explain my idea to the missus (who is a science teacher) and it baffled her
i`m sure you lot might "get it"
We're all doomed.
05 September 2008, 09:09 AM
#150
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this is all too familiar....
for the Amiga purists amongst you, i present:--
YouTube - Another World Hi-Res Intro
for the Amiga purists amongst you, i present:--
YouTube - Another World Hi-Res Intro