Dark Matter

Not that anybody's asking, but, I "retrieved" the data (_{left "empty" in references at the bottom-most lines in post 199, above}):

The mass of the "aether"/"fabric-of-space"/"quantum vacuum" is calculated (in one theory) to be

5.907 x 10²⁴ tons/cc

... its acceleration is great, on the order of

6.672 x 10²⁰ m/s²

...and the tension that it is under is (likewise-great) on the order of 5.309 x 10⁴⁵ Bar

"Explained" alongside these numbers ... ("How can that be? Why doesn't all that mass exhibit gravitational effects?") ... is the concept that stars, planets, "we, ourselves", only exhibit "weight", and "attractive force" because of the "extra" matter that exists, where all of these things are...

"Wonder of Wonders"...! Theories just keep getting interestinger and interestinger ... ...

If one is located in a symmetric matrix of E-M force, or gravitational force (tension), it makes no difference, because the field is symmetric. Apparently, it is not strong enough to pull us apart, or we would not be here discussing it.

Could there be a fidget with the decimal point somewhere in the calculation? Hmm?

Good thing we are not building boats to raid England with, or we would already have sinkers instead of floaters.

From another angle, if there was intelligent life somewhere in the the far reaches of the Universe, and they were at a similar technical stage as us, and presumably asking very much the same questions, and looking for their own version of Dark Matter, that they hope will explain 'funny' things that to themselves seem to be happening to our galaxy from where they view us - and supposing we could talk to each other - what tests or measurements would we ask each other to carry out to help prove our theories.

To my mind, if we are both asking the same sort of questions, then the answers about their galaxy and beyond would be much the same as the answers to their questions about our galaxy and beyond.

In which case we don't need to talk to them because in the search for 'our' Dark Matter we could find the answers on our doorstep without their help.

Or have I not been paying attention and this is what the LHC is for.

Once again a clever XKCD comic sums this question up very neatly.

But Mr. Tesla, who put the fabric there in the first place, and left wrinkles in the bed?

Are you accusing God of not being able to bounce a dime on his sheets?

Spacetime is not finished expanding yet.

Perhaps it will reach perfection when of the wrinkles have been pulled out and then the sheet will be perfect.

Cold,but perfect.

Ok, but is space-time is elastic, could it rebound?

It is hard to imagine a deformation in spacetime in all dimensions,but try imagining acceleration in all dimensions.

This would satisfy as a definition of gravity.

All dimensions include the following (that I know of):

x,y,z,t

p_x,p_y,p_z,

but that is only seven, there are apparently four more dimensions that physics knows of, but I do not know them.

^{Mama87 asks:} "Can anyone explain px py and pz to me?"

I , too , seem to be incapable of "swallowing" some of the (^{supposedly "profound"}) "explanations" regarding the extra dimensions, theorized by so many these days.

No matter HOW hard they try to DEPICT such "imagined-so-they-must-be-real" dimensions ...

. . . I still seem to see ( everything depicted thus far ) the only way it CAN be seen: in "3D".

And yet ; I have no difficulty accepting the concepts divulged above (Post# 201)... that we exist "within" an entity much greater than we can comprehend or detect... (and, that He exists within us, as well)...

... ( until proven otherwise, which won't happen during MY existence, in THIS life...)

The "p's" are the momenta axes. (At least this is how things seem to be in Q-M theory), as best as I recall.

The physicists need the 11 dimensions (apparently) in order to be able to formulate membrane theory, where other universes exist as other 'branes.

For example in another 'brane, gravity would be stronger than the strong nuclear force, and what we feel is just gravity leakage into our 'brane.

I feel as though as far as I am concerned the leakage is the other way. (out of my 'brane).