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Anonymous Poster

stress fractures in space time?

09/21/2008 6:45 PM

Could space-time itself have been fractured on a large scale, and created weak spots where matter accumulated to form galaxies,etc? The mysterious dark matter that appears to surround galaxies with extra mass could merely be an illusion caused by a "weak spot" in space time.We assume that space time is homogenous when not influenced by the presence of matter, but what if it is not uniform and smooth on large scales?What if there are weak spots in space time where galaxies accumulate?

Perhaps we are like the rooster that thinks his crowing causes the sun to rise.It may well be the other way around.

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#1

Re: stress fractures in space time?

09/21/2008 7:29 PM

Can you support this theory by citing evidence or showing some equations that suggest this to be the case?

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#2
In reply to #1

Re: stress fractures in space time?

09/21/2008 8:43 PM

Perhaps hydrogen embrittlement?

milo

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#4
In reply to #2

Re: stress fractures in space time?

09/22/2008 6:50 AM

ROFL

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#3

Re: stress fractures in space time?

09/21/2008 10:24 PM

Very sensible speculation. My personal opinion is that stress fractures in space time occurring during the hyper-inflationary period of the Big Bang are largely responsible for the clumping of mass/energy we observe today.

The fact that this period of non-space and non-time is mathematically projected to exist is a strong indication that these fields were indeed stressed beyond their fracture point. By playing with a grain structure variable to represent the friability of space time you can model any degree of clumpiness in the resulting universe you wish, including the degree we actually observe in our universe.

The large scale voids we now observe are likely the result of massive black holes accumulating all the matter surrounding them and over time dissipating that energy either substantially, or totally.

The missing matter, ie. dark matter, went the way of all good things via the same mechanism, gravitational confinement by black holes followed by annihilation of both the confined matter and energy via a mechanism that is still being studied. Hawkins builds a very good case for the existence of entropy in black holes, but no one including myself has a great model of how this happens.

Sub-microscopic fractures of space time happen continuously. They occur every time an electron changes orbital state. The outward propagating ones we refer to as photons while the inward propagating ones are referred to as virtual photons because they are almost always captured by the atomic nucleus and so are hardly ever observed.

So, based on many years of researching physics I would say heck ya, stress fractures in space time happen all the time.

I know you are speculating and you should also know that I am as well. However, there is a very sound basis of reasoning, observation, and calculation underlying these speculations. Again, my opinion.

Sincerely,

Mr. Gee

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#5

Re: stress fractures in space time?

09/23/2008 9:29 PM

Consider the rubber sheet analogy of gravity,whereas it is deflected by matter.It forms a deformation in space-time that defines the boundaries of space time.

Now imagine billions of these depressions.Now imagine you are outside of the rubber sheet, looking at it from the "bottom" instead of the top.It would look like a pollen grain with many spikes sticking out from the "surface".If these spikes have the opposite effect of gravity, they would tend to repel one another,rather than attract.

Could this be causing the expansion of the universe? Not a very good analogy, I know but the best I can do for now.

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#6
In reply to #5

Re: stress fractures in space time?

09/23/2008 11:49 PM

Actually, it is a very good analogy. We have already postulated that "space/time" may contain as many as eighteen dimensions, some folded into others, some where the infinites cancel each other out. One of the better analogies I have run across.

Good Answer.

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