Tuesday, December 1, 2009

Is Gravity destroying Space?

Is gravity really the acceleration against space that we feel as space is pulled into "centers" of gravity?



I can't find a way to fit it in with inertial orbit, but it's just something that I couldn't get out of my head today.



Personally I accept the graviton and I've also spent a lot of time trying to imagine how it would work and I always seem to go back to the fact that our Universe is in fact expanding faster and faster. Logically, ignoring quite a few problems, it might seem as if we're actually being accelerated through space as it's pulled on by more compressed space.



I was also thinking about how it's really space itself that seems to construct gravity, because matter is mostly composed of space itself. At some point as a large body takes on mass, it begins to shrink, possibly as the very space within the body is compressed?



It would seem to me as space itself acts like some type of compressible fluid that is no longer perfectly stable and ripples from something...



Is Gravity destroying Space?tiny myspace





Bleh! Gravitons.



I look forward to the moment when 'graviton' when used in a sentence means scientific contrived tripe.



The interesting part of your question is the actual question... since you don't understand gravity, you don't know what you are asking, yet it is a serious question, because:



1. it determines whether the Local Universe is expanding along with the other, adjacent ones; if they are all decaying together toward a combined Big Bang or it is all us when ours goes 'boom' again



2. it determines if there is energy exchanged in Black Holes.



3. it determines the future of interstellar flight - not if we do it, but how it looks.



Back to your question: How is gravity destroying Space, and is it localized or far-reaching?



Hmmm...



I'll get back to you in a few months or so.



Is Gravity destroying Space?celebrities myspace myspace.comI really will be answering it in a couple of months or so. I have to "float" some other ideas first - I'm planning on feeding it in slowly enough for Science to get patronizing, but not worried. Its the only fun I have. Report It


Gravity, indeed, is a factor of why our own galaxy is beginning to collapse. It seems like everything in the universe begins to compact into one giant object, and then later explodes to make more and other objects.



I see your point here, though. If the force of gravity is extremely strong, it tend to destroy things. I've never been in a gravity field or anything, or for that matter out in space, but I think that black holes are a key to unlocking the best answer to this question.



EDIT: Extending what the answerer below me said, if we lived in a universe with no gravity, I don't think we would be able to live. Gravity is nature's way of keeping certain things in order.
the probability of this seems exceedingly low. even if it is



would you want to exist in a universe without gravity
Gravity may be damaging outer space, but it's also holding everything together! We need gravity to live.
Don't forget time. It's more complicated than what you think. Gravity is also a distortion ("curvature") of time as well as space.



Get an introductory book on special relativity and carefully go through the assumptions, postulates and derivation of the basic equations. It's all quite easy. This will give you a good foundation to work from.



Then tackle general relativity. This is much more difficult, but at least try to absorb the concepts.



As if all that isn't enough you will need some basic concepts from quantum mechanics. Once again the maths is not that hard. In particular learn and think about the role and limitations of the observer as being a system which is part of the universe.



Hopefully by the time you get through this lot, you will have a better idea of what might be happening.



Good luck!
Gravity is the geometry of space/time. (1) Think of a piece of rubber stretched on a four sided frame. Now place a bowling ball on that rubber, and you have a 2D model of a gravity well. Put a marble next to the ball, and test how hard you have to flick it to reach 'escape velocity'.
Well, I have no clue...I certainly lack knowledge in this subject. However, I did find your shared thoughts on the matter rather interesting, and almost as a breath of fresh air in itself. Not that my idea/s have any weight what so ever, but the only thing I can think of is perhaps the ripple effect is part of elimination. I've read of planets exploding and/or stars...and perhaps a necessity in order to stabilize the gravity needed to perfect the compression fluid, and/or space in between the planets for their continual rotation or format of axis where they exist in the vast universe. Just a thought...thanks for asking.
I don't think it's known whether space somehow "wears out" by being repeatedly curved by pressence of mass. It's hard to visualize the 3d projection of the usual "place a bowling ball on a trampoline" example - it would be something like this shape, but repeated in every possible plane around the object. (Somehow, I keep imagining a torus shape, but I know that would also only be a cross section of the true shape of a gravity well)



Gravity is basically space being curved in a direction "perpendicular" to space - which we cannot actually visualize because we can only go in 3 directions, or some combination of them.



Gravity does seem to propogate out from sources like ripples do. I don't think it's gravity of some other parallel universe that's stretching our space, though. It's currently proposed that dark energy is the force driving the expansion of space. I'm not certain of the facts behind dark energy right now, but there seems to be evidence that it actually exists, at least more so than for the presence of the aether.



So if anything's destroying space, current thought is that it's the dark energy, which appears stronger than gravity. Current evidence points to the conclusion that there will not be any big crunch, so the universe is expected to expand until it thins itself into oblivion.



Good thing it's not happening next month, eh?
We do not feel the effects of gravity. We feel the effects of opposing gravity. In free fall (not just orbit) we feel no forces acting on us at all. There are no actual "forces" acting on us (although it is convenient to use Newtonian physics to predict the motion in Newtonian space). We travel along the "path of least resistance" toward the center of the nearest large mass. Due to the curvature of space and time, that is the direction that we take unless we want to stop it by applying a force.



The equivalence principle describes the effects of standing in a closed vehicle accelerating upward in space at 1G as being indistinguishable from the effects of sitting in the same vehicle on the surface of the Earth in a 1G field. That is because there is no difference to distinguish. That's what Einstein said, and I believe he was correct.

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