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RE: LHC starting up again
April 5, 2015 at 5:31 pm
I cant wait to read up on the findings. They are looking into alternate dimensions too i was reading up on it.
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RE: LHC starting up again
April 5, 2015 at 5:44 pm
(April 5, 2015 at 5:31 pm)dyresand Wrote: I cant wait to read up on the findings. They are looking into alternate dimensions too i was reading up on it.
Ugh I can tell you all about extra dimensions if you want to know. I did so much extra dimensions I have them coming out the wazoo.
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RE: LHC starting up again
April 5, 2015 at 6:14 pm
(April 5, 2015 at 5:44 pm)Alex K Wrote: (April 5, 2015 at 5:31 pm)dyresand Wrote: I cant wait to read up on the findings. They are looking into alternate dimensions too i was reading up on it.
Ugh I can tell you all about extra dimensions if you want to know. I did so much extra dimensions I have them coming out the wazoo.
I wonder if they will be able to detect dark matter know with the upgrades.
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RE: LHC starting up again
April 5, 2015 at 6:18 pm
(April 5, 2015 at 6:14 pm)dyresand Wrote: (April 5, 2015 at 5:44 pm)Alex K Wrote: Ugh I can tell you all about extra dimensions if you want to know. I did so much extra dimensions I have them coming out the wazoo.
I wonder if they will be able to detect dark matter know with the upgrades.
It's kind of like with susy, and it depends on what nature has in store for us. If the mass of dark matter particles is low enough and they are parttaking in the weak interactions or interacting with other new particles such as supersymmetric quarks, then yes. If dark matter is something like Axion particles, which barely interact with matter, the LHC is not the right tool to find it.
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RE: LHC starting up again
April 5, 2015 at 6:23 pm
(April 5, 2015 at 5:27 pm)Alex K Wrote: (April 5, 2015 at 3:21 pm)Surgenator Wrote: Anybody taking bets on what they'll find?
If I had a clue I'd write a paper. I think missing energy from dark matter of some sort is plausible. A new force carrier maybe, usually dubbed Z'
That's very interesting. The skeptic in me (from a layman's perspective) wonders if it's more likely that there is a fifth fundamental force of nature or that our understanding of the gravitational force is very lacking. I mean, we already wonder why it is so incredibly weak and speculate about it spilling into other dimensions. Plus, we can't unify it with other forces. I wonder if our understanding of it is fundamentally incomplete.
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RE: LHC starting up again
April 5, 2015 at 6:31 pm
(This post was last modified: April 5, 2015 at 6:40 pm by Alex K.)
(April 5, 2015 at 6:23 pm)AFTT47 Wrote: (April 5, 2015 at 5:27 pm)Alex K Wrote: If I had a clue I'd write a paper. I think missing energy from dark matter of some sort is plausible. A new force carrier maybe, usually dubbed Z'
That's very interesting. The skeptic in me (from a layman's perspective) wonders if it's more likely that there is a fifth fundamental force of nature or that our understanding of the gravitational force is very lacking. I mean, we already wonder why it is so incredibly weak and speculate about it spilling into other dimensions. Plus, we can't unify it with other forces. I wonder if our understanding of it is fundamentally incomplete.
I'm in the fundamentally incomplete camp. Adding one more force carrier similar to the Z boson to the standard model is a relatively trivial undertaking theory-wise, compared to quantizing gravity which is super hard. Even leading string theorists I know think that strings are not the final word.
By the way, strictly speaking we already have a fifth fundamental force, which is produced by the exchange of Higgs bosons. The difference is just that it is produced by a spinless carrier, but it's a perfectly cromulent force...
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RE: LHC starting up again
April 5, 2015 at 6:57 pm
(April 5, 2015 at 6:31 pm)Alex K Wrote: (April 5, 2015 at 6:23 pm)AFTT47 Wrote: That's very interesting. The skeptic in me (from a layman's perspective) wonders if it's more likely that there is a fifth fundamental force of nature or that our understanding of the gravitational force is very lacking. I mean, we already wonder why it is so incredibly weak and speculate about it spilling into other dimensions. Plus, we can't unify it with other forces. I wonder if our understanding of it is fundamentally incomplete.
I'm in the fundamentally incomplete camp. Adding one more force carrier similar to the Z boson to the standard model is a relatively trivial undertaking theory-wise, compared to quantizing gravity which is super hard. Even leading string theorists I know think that strings are not the final word.
By the way, strictly speaking we already have a fifth fundamental force, which is produced by the exchange of Higgs bosons. The difference is just that it is produced by a spinless carrier, but it's a perfectly cromulent force...
Wow, on the Higgs force. I never thought about it that way but I guess so...
I find my ego somewhat stroked by an expert agreeing with me about my feeling about the gravitational force. The whole dark matter/dark energy thing just reeks of the ether of the 19th century. I'm not qualified to weigh in on it and I recognize that but it registers on my BS detector, you know? It just has that familiar ring to it.
This is an exciting time in physics. How many times have we heard that we're on the threshold of understanding the whole thing? Those who came before us were great but they just didn't have the knowledge to understand. NOW, we really do have what we need and are REALLY on the cusp of total understanding. Right. This dark matter/dark energy stuff sounds like we're right back to those early humans sitting around a camp fire, looking up and trying to make sense of it all.
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RE: LHC starting up again
April 5, 2015 at 7:02 pm
(This post was last modified: April 5, 2015 at 7:05 pm by Alex K.)
I think dark matter and dark energy just might not be quite as mysterious as people make them out to be. Especially DM could be completely mundane. We already know one type of DM, namely neutrinos, but they can only provide a fraction of observed DM. All it takes is another particle like that, but a bit heavier. The strange thing about Dark Energy is not so much that it exists. It was to be expected because anything that provides energy in the vacuum such as the higgs field and virtual particles, contribute to it. The strange thing is why there is so little of it when naive estimates give you up to 120 orders if magnitude more.
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RE: LHC starting up again
April 5, 2015 at 7:22 pm
How does "energy in the vacuum" oppose gravity? I understand (or at least I think I do) about how nuclear fusion in a star opposes gravity. The gas composing the star is pressurized, right? There is no pressure in the vacuum of space so how is gravity being counteracted?
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RE: LHC starting up again
April 5, 2015 at 7:29 pm
(This post was last modified: April 5, 2015 at 8:15 pm by Anomalocaris.)
In active main sequence stars of any size it is the radiant pressure of thermal nuclear reaction that is holding up the star, not the static pressure of the gas in the star being pressurized by the weight of the rest of the star above it. So I guess the it seems to me the statement "gas is pressurized" conveys the wrong impression about what and how pressure is holding up the Star.
I believe the statement "there is no pressure in vacumn" is untrue. There would be measurable pressure force in pure vacumn if you have a large enough container with which to measure the pressure of the vacumn of the space inside. The pressure force of vacumn of space appears to me to be relative and proportional to the how much space you measure the pressure over. So in space the size of a vacumn chamber, a space craft, of a planet or a solar system, the measured pressure forceof vacumn would be vanishingly small. In space the size of galactic superclusters the pressure force is enough to accelerate galaxies on its boundaries to appreciable fractions of speeds of light over the life of the universe.
The difference between normal concept of pressure and vacumn pressure is with normal pressure the force of the pressure is not directly dependent on how much pressure causing substance the measurement is being conducted over. A gas pressure transducer of any size located anywhere inside a bottle of pressurized gas will register the same pressure. But a notional vacumn pressure sensor will register different pressures depending on the size of the sensor.
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