Posted on 05/25/2006 1:35:30 PM PDT by Ben Mugged
Scientists at Duke and Rutgers universities have developed a mathematical framework they say will enable astronomers to test a new five-dimensional theory of gravity that competes with Einstein's General Theory of Relativity.
Charles R. Keeton of Rutgers and Arlie O. Petters of Duke base their work on a recent theory called the type II Randall-Sundrum braneworld gravity model. The theory holds that the visible universe is a membrane (hence "braneworld") embedded within a larger universe, much like a strand of filmy seaweed floating in the ocean. The "braneworld universe" has five dimensions -- four spatial dimensions plus time -- compared with the four dimensions -- three spatial, plus time -- laid out in the General Theory of Relativity.
The framework Keeton and Petters developed predicts certain cosmological effects that, if observed, should help scientists validate the braneworld theory. The observations, they said, should be possible with satellites scheduled to launch in the next few years.
If the braneworld theory proves to be true, "this would upset the applecart," Petters said. "It would confirm that there is a fourth dimension to space, which would create a philosophical shift in our understanding of the natural world."
~snip~ "When we estimated how far braneworld black holes might be from Earth, we were surprised to find that the nearest ones would lie well inside Pluto's orbit," Keeton said.
Petters added, "If braneworld black holes form even 1 percent of the dark matter in our part of the galaxy -- a cautious assumption -- there should be several thousand braneworld black holes in our solar system."
(Excerpt) Read more at sciencedaily.com ...
I hear ya! A hot smarty! or a smart hotty! Niiiiice!
Now that reality has entered the equation, I'm totally confused.
I was just thinking about that this morning
To quote Master Yoda:
"Hit it I would!"
Buckaroo Banzai explains the Universe:
"No matter where you go, there you are."
I don't know. Something about imagining the Universe as a slice of bread, with other Universes(slices) "next" to it. But all that does is place the Universes inside a larger 3D construct (the loaf of bread), and fails to explain where the loaf resides. Infinity is the ultimate wig-flipper. No matter how far out you go, can't you go a little farther? No matter how big (or small) something is, couldn't it be just a bit bigger (or smaller)? My dad (a physicist) taught me infinity when I was a young boy. He had me stand a few feet from the wall, told me to go half the distance to the wall, and then do it again, and again, halving the distance to the wall, and to tell him when I got there.
Oh man, she can theorize my space/time continuum any day :-PPP
But a cube has six sides...not four.
I listed to Chuck Misler try to explain four dimensions once and my head nearly exploded.
Supposedly it's height, width, depth, and breadth, but darned if I can explain it. I'll just have to take his word for it.
At least there is a proposal to test/detect proof for the theory.
But manipulating/controlling gravity should be the ultimate aim.
Five dimensions = alternate realities.
Is it really?
I have considered time to be our perception of the changing state of the universe...
Energy to matter, Matter to energy, Order to Chaos, the constantly changing state of the universe we live in is seen by us (life) as "time"..
We are able to percieve the 3 "physical" dimensions of length, width, depth, ( x,y,z ) and would not NEED time if our position in space-time never changed.. ( It does, this is a "simplified" example, not getting into orbital mechanics and such..)
Time would not make a difference.. x,y,z remain the same, nothing is perceived as changing..
But with the state of the universe constantly changing around us, x,y,z are NOT the same..
Our position in space-time is the same, but the universe around us has changed..
Thus, x,y,z has changed "in relation" to the rest of the universe..
OK, my brain is shredding and I can't take this any farther.
Just my 2 cents..
Quantum physics has both particle and wave theory which both involves movement of particles and or energy. Atoms and subatomic particles exist in the same dimensions and are in motion. Even in abolute zero atoms are still in motion and time is still a factor. If you could stop time in theroy all motion would stop including on the subatomic level. Does absolute zero with no changes in energy or particle motion mean that time has stoped? No, because you would still have a period of existance in one state of entropy or another. Two dimenional objects exist on a plane and can't move or exist in the third dimension other than the single plane portion of the third dimension they occupy. A two dimensional existance can not move up or down as in volume but can percieve all around in any direction on that plane. Likewise we can perceive only that portion of the 4 dimension we occupy. We only occupy a portion of the 4 dimension and can only precieve that segment that intersects the third dimension while all of the third dimension can be observed from the fourth. Time is the same for all dimensions. In theroy any motion or change to the third dimension that can't be explained by the rules governed by the third dimension is caused or influenced by the rules governing a higher dimension. They are discussing a theroy on how mathmaticaly to observe an action occuring in the 4th causing an afect within the third by way of changes to gravity that defy the laws of gravity as they exist within the confines of the third dimension. Levitation without magnetics or other energy or form of motion that defies the known law of gravity can be explained as being caused by action occuring within the fourth dimension.
That fifth dimension is kind of heavy.
4 dimensions of space should not require any type of movement. Movement is time. I personally cannot imagine 4 dimensions of space.
Quantum physics has both particle and wave theory which both involves movement of particles and or energy. Atoms and subatomic particles exist in the same dimensions and are in motion. Even in absolute zero atoms are still in motion and time is still a factor. If you could stop time in theory all motion would stop including on the subatomic level. Does absolute zero with no changes in energy or particle motion mean that time has stopped? No, because you would still have a period of existence in one state of entropy or another. Two dimensional objects exist on a plane and can't move or exist in the third dimension other than the single plane portion of the third dimension they occupy. A two dimensional existence can not move up or down as in volume but can perceive all around in any direction on that plane. Likewise we can perceive only that portion of the 4 dimension we occupy. We only occupy a portion of the 4 dimension and can only perceive that segment that intersects the third dimension while all of the third dimension can be observed from the fourth. Time is the same for all dimensions. In theory any motion or change to the third dimension that can't be explained by the rules governed by the third dimension is caused or influenced by the rules governing a higher dimension. They are discussing a theory on how mathematically to observe an action occurring in the 4th causing an affect within the third by way of changes to gravity that defy the laws of gravity as they exist within the confines of the third dimension. Levitation without magnetics or other energy or form of motion that defies the known law of gravity can be explained as being caused by action occurring within the fourth dimension.
His molecules are more dense than the other dimensions.
ping
Disclaimer: Opinions posted on Free Republic are those of the individual posters and do not necessarily represent the opinion of Free Republic or its management. All materials posted herein are protected by copyright law and the exemption for fair use of copyrighted works.