Parallel Universe, 10 dimensions

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SUMMARY

The discussion centers on the concept of parallel universes and dimensionality, specifically referencing string theory's prediction of 10 dimensions. Participants explore the implications of macro and micro dimensions, suggesting that macro dimensions could serve as containers for micro dimensions. The conversation also touches on the potential for an 11th dimension and the relationship between dimensions and thermodynamics, particularly in the context of the Big Crunch. Key points include the distinction between dimensions and directions, and the philosophical implications of dimensionality in understanding reality.

PREREQUISITES
  • Understanding of string theory and its prediction of 10 dimensions.
  • Familiarity with the concepts of macro and micro dimensions.
  • Basic knowledge of thermodynamics, particularly the 2nd Law of Thermodynamics.
  • Awareness of particle physics, including antimatter and particle-antiparticle interactions.
NEXT STEPS
  • Research the implications of string theory on modern physics.
  • Explore the concept of the 11th dimension in theoretical physics.
  • Study the relationship between thermodynamics and cosmological models, especially the Big Crunch.
  • Investigate the philosophical interpretations of dimensions and their impact on our understanding of reality.
USEFUL FOR

Students of physics, cosmologists, theoretical physicists, and anyone interested in the complexities of dimensionality and its implications in understanding the universe.

  • #31
Hi,

I once read a conversation between Hawking and Penrose where the big bang was described as the instant of transition from nothingness to somethingness.

juju
 
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  • #32
everythingness

Hi Juju,

That is the prevalent theory of the moment. I don't see it that way — or at least I would not describe it in those words. I think the action went from not-materialized to materialized, where both are the same in energy and mass, but where the difference between both is the sudden incorporation of the phenomenon of nothing.

To say this differently, before the BB there was singularity, after the BB there is no singularity on the materialized side of our universe. The working of nothing is that it is the separator between matter. This theory states therefore that a unified theory is impossible — no matter how close we may get to seeing it that way — because the phenomenon of nothing creates at the minimum two ultimate parts that are not unifiable.

As far as the word nothingness is concerned: I have never used it (except of course like here to denounce it).
 
  • #33
Momentary nothing

I read it again in the New York Times science section this last week, that during the collision at BNL of two gold nuclei a momentary nothing - a fraction of a second in which nothing occurred - was detected before materialization of the new plasma became visible. I find this highly telling.
 
  • #34
Define the phrase "nothing occurred" within the context of the experiment. Do you mean that the detectors saw nothing? Just because the detectors see nothing, does not mean that nothing was there.

And I suppose it's possible that a moment of relative quantom vacuum was created in the center of the collision. The collision, after all, would have something in common with a conventional explosion. A sudden ouburst of energy pushing matter away from the center. A moment of equilibrium between the relatively negative pressure at the center exactly matching the pressure of the outward motion. Then, of course it would quickly be filled with a miniature implosion. Perhaps this is so on the quantom scale as well.

But I would suspect a clearly defined and well formed picture such as that. Even though it comes from a well known (and therefore assumably competent and ethical) team of scientists, does not mean that it is a direct image. It may be a construct of the data, and therefore subject to someone's interpretation of that data.

Indeed, the abstract indicates they suspect it is really a tiny singularity. Singularities are far from nothing.
 
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  • #35
Theories

jdlech said:
Define the phrase "nothing occurred" within the context of the experiment. -- Indeed, the abstract indicates they suspect it is really a tiny singularity. Singularities are far from nothing.

Apologies for my word use. For a fraction of time, nothing appeared to have happened. In the article it is argued that the fireball observed at RHIC is (the analog of) a dual black hole. An animation of it can be seen at: http://www.bnl.gov/bnlweb/pubaf/pr/1999/animation.html

I argue that the only state of singularity is the non-materialization that existed before our universe came into existence. While the gold ion collision could have pushed matter towards this state, it could not be captured because I argue that the prior state does not exist anymore. The current black hole theory that states that black holes exist at the centers of galaxies have so far been based on theory-based-upon-theories and not too much direct evidence.

The gold-ion collision only created a momentary nothing (imitation of singularity if you wish but since I argue that this state can never be captured no matter the total amount of force, this state can not be described by me other than nothing), and subsequently the delivery of the explosion as you describe so well.
 
  • #36
Singularities in the classical (macroscopic) sense are well established and a couple has even been found (or so we think). However, their presence in the quantom sense are not so well investigated. I still tend towards believing their presence, but until furter evidence comes in, I'll remain open to your idea.
Actually, the intuitively logical nature of your idea is actually a mark against it. Too much in quantom mechanics behave in a uniquely counterintuitive way.
 
  • #37
Agree (but in quantum leap that means disagreement)

jdlech said:
Singularities in the classical (macroscopic) sense are well established and a couple has even been found (or so we think). However, their presence in the quantom sense are not so well investigated. I still tend towards believing their presence, but until furter evidence comes in, I'll remain open to your idea.
Actually, the intuitively logical nature of your idea is actually a mark against it. Too much in quantom mechanics behave in a uniquely counterintuitive way.
Well established as in well believed. I agree. While there is not much doubt, I still doubt (or am confident it is not so). The black holes - as suggested to exist at the center of galaxies and being places of singularities - are according to me theoretical gravitational errors. I see the calculations as ghost calculations that mention how strong the gravitational entity is that exists at the center of a hurricane. Everybody knows there is no entity in the eye of the storm, but if one calculated that entity based on the storm's strength and size then a super-entity exists but one that cannot be seen with the naked eye. [By the way, I do believe something exists at the middle of a galaxy, but not a gravitational superpower.]

I believe the gravitational model for galaxies is basically different from the gravitational models for solar systems in that the latter have a center of gravity in the middle, while the galaxies only consist of many of those centers, it does not have a gravitational center correlating to the galaxy as a whole itself. In other words, the center of gravity in a galaxy is according to me spread out, based on cohesion, and if a spot needs to be mentioned I would go for 1/3rd out from the center, 2/3rds in from the rim.

Where solar systems started to exist out of segments and together form the galaxy, the galaxy itself was too big to become based on such a model. A quick comparison would be a dictatorship (solar system) and a full representation democracy (galaxy), where the former has all the star attraction, but the latter has multiple parties vying for coalitions, not full control (so I don't mean the restricted democracy as it, for instance, exists in the United States with its two party system). Parties themselves are still formed on their own merits and rules, like dictatorships, but they all agreed or were forced by the people to function on a larger democratic platform. Sure, the constitution would be a very important document to help understand democracy and it is something desperately needed to have democracy run smoothly, but the document is not one of the players, where in dictatorships the dictator is the constitution.

If the center of a galaxy truly had a strong gravitational center in the middle I would have expected the galaxies to be more volatile, shaped much rounder, not like the rather flat orderly entities as we see in our universe.
 

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