what are worm holes and is there such a thing as a 4th or 5th dimension?
83422
Scientist belive there are several dimesions.  Remember dimensions are based on measurement.  Length width height, 3 dimesions so we are in the third dimension.  A showdow for example only has length and width so it is the 2nd dimseion.  We cannot comprehend other demensions because we live in a 3d world where only LWH exist.  It is like asking your shadow what is tall, he would know because he lives in the 2nd demsiond.  So there are other dimensions yes and we can dicipher them though the wonders of mathmatics and physics.\n\nGravity works likes a bowling ball on a bed.  Think of the bed as the fabric of space.  If you put a tennis ball on the bed it would "gravitate" towards the bowling ball.  This is the theory of realtivity.  A worm hole forms when a really heavy mass punches through that space fabric.  If you had a million pound bowling ball it would go right though the bed.  The same things happens in space that heavy mass punches right though to the other side forming a worm hole.
72214
Black holes almost certainly exist. Wormholes almost certainly do not.
554610
Take a sheet of paper and imagine it is space. Mark two dots on two different parts of the sheet. If u were a traveller going from one dot to another, you'd normally travel in a straight line. BUT, if u bend the sheet such that the dots touch each other, u can actually travel from one dot to another in no time at all. This new path in three dimensional space will be a wormhole while the curved sheet represents curved space.
682072
No one to date has been able to create a wormhole although mathematically it should be possible there are many reasons why it is very improbable. Firstly a wormhole theoretically would decay supremely fast and to counteract this you would need an enormous quantity of negative energy to keep this open. For a wormhole of one meter you would need about as much energy as the sun has produced in its lifetime. Secondly there is no known way to create a wormhole. A wormhole theoretically is when you twist space time and you can connect two distant points with no space in between them. As of right now wormholes are just a weird concept that arises out of messing with einstein's relativity equations.
609869
Aliens travel through wormholes, meaning they don't fly long distances to get to earth. \n\n"Intra-universe wormholes connect one location of a universe to another location of the same universe(in the same present time). A wormhole should be able to connect distant locations in the universe by bending spacetime, allowing travel between them that is faster than it would take light to make the journey through normal space. See the image above. Inter-universe wormholes connect one universe with another [1], [2]. This gives rise to the speculation that such wormholes could be used to travel from one parallel universe to another. A wormhole which connects (usually closed) universes is often called a Schwarzschild wormhole. Another application of a wormhole might be time travel. In that case it is a shortcut from one point in space and time to another. In string theory a wormhole has been envisioned to connect two D-branes, where the mouths are attached to the branes and are connected by a flux tube [3]. Finally, wormholes are believed to be a part of spacetime foam [4]. There are two main types of wormholes: Lorentzian wormholes and Euclidean wormholes. Lorentzian wormholes are mainly studied in semiclassical gravity and Euclidean wormholes are studied in particle physics. Traversable wormholes are a special kind of Lorentzian wormholes which would allow a human to travel from one side of the wormhole to the other. Sergey Krasnikov tossed the term spacetime shortcut as a more general term for (traversable) wormholes and propulsion systems like the Alcubierre drive and the Krasnikov tube to indicate hyperfast interstellar travel."
499903
it the way the math worked out, there are supposedely either 11 or 26 dimensions. this math is way beyond me, but the theory is still unproven so they may be any number.
945815
A 10 DIMENSIONAL UNIVERSE :\n\nThe curious feature of superstrings, however, is that they can only vibrate in 10 dimensions. This is, in fact, one of the reasons why it can unify the known forces of the universe: in 10 dimensions there is "more room" to accommodate both Einstein's theory of gravity as well as sub-atomic physics. In some sense, previous attempts at unifying the forces of nature failed because a standard four dimensional theory is "too small" to jam all the forces into one mathematical framework. To visualize higher dimensions, consider a Japanese tea garden, where carp spend their entire lives swimming on the bottom of a shallow pond. The carp are only vaguely aware of a world beyond the surface. To a carp "scientist," the universe only consists of two dimensions, length and width. There is no such thing as "height." In fact, they are incapable of imagining a third dimension beyond the pond. The word "up" has no meaning for them. (Imagine their distress if we were to suddenly lift them out of their two dimensional universe into "hyperspace," i.e. our world!) However, if it rains, then the surface of their pond becomes rippled. Although the third dimension is beyond their comprehension, they can clearly see the waves traveling on the pond's surface. Likewise, although we earthlings cannot "see" these higher dimensions, we can see their ripples when they vibrate. According to this theory, "light" is nothing but vibrations rippling along the 5th dimension. By adding higher dimensions, we can easily accommodate more and more forces, including the nuclear forces. In a nutshell: the more dimensions we have, the more forces we can accommodate.One persistent criticism of this theory, however, is that we do not see these higher dimensions in the laboratory. At present, every event in the universe, from the tiniest sub-atomic decay to exploding galaxies, can be described by 4 numbers (length, width, depth, and time), not 10 numbers. To answer this criticism, many physicists believe (but cannot yet prove) that the universe at the instant of the Big Bang was in fact fully 10 dimensional. Only after the instant of creation did 6 of the 10 dimensions "curled up" into a ball too tiny to observe. In a real sense, this theory is really a theory of creation, when the full power of 10 dimensional space-time was manifest.
538598
Most of them have no other end, just a really havy star at the middle which hurts like heck to smack into :-). But for the few wormholes out there, some are indeed interdimensional, but trael trhough them is perilous, and we don;t know about the laws of physics on the other side. Some, though, are intradimesnional, with holes in the same place but at different times. Viola, time travel! But people could be in other universes, but odds are they won;t be the same.
191182
I am not sure about life more than 4 dimensions. Why? Is this funny for you?
706278
I know four dimensions: x, y, z\ntime is the fourth\n\nBut in addition, theories such as string theory predict that the space we live in has in fact 11 dimensions, but that the universe measured along these additional dimensions is subatomic in size. As a result, we perceive only the three spatial dimensions that have macroscopic size
138234
Yes. Wormholes subconciously send a ray of time 100 Million years  later into our universe. Witch means we wouldn't notice that it use to be the dinosaurs time and a quasar or worhole zapped us here now! You can never enter a wormhole once you enter it its portal to time closes and anybody who goes in it is trapped in eternal nothingness.
349330
of course it is theoretical. It is like my answer to another question, what contains the Multiverse? "What's after that?" I had said. It is theoretical and we like to think that the universe has a finite space and something holds our universe with another finite space. We like to think this way because that's the extent of our view and understanding. We live in the 3rd dimension and we can only understand physical things in the third-dimension. We can only have so much understanding on our universe that everything about it has to be based on theories. Even the fact that the 4th dimension is time is not really a fact, but still a theory because we can't think in that dimension. We haven't been through the 4th dimension (i know the theory is that we're going through it in one direction but it still is a theory). Our understanding of our own universe is very limited because we live in a finite world.\n\nAnd it doesn't answer your question, i know. But I like to think of the multiple universes that you're talking about as the Alternate Universe theory where something doesn't happen in this Universe, it happens in another and if it is this case, there is almost infinite number of them. And the wormhole thing works with Einstein's theory of Relativity as a Super Massive Black Hole is strong enough that it bends the space-time continuum so much that it will make an advanced dimensional hole in another (if not all) universe. I devised an un supported theory that that hole created by the black hole is actually a 6th dimension because it disappears as matter from the universe then exist in another. A total violation of the law conservation of matter unless it actually goes through a wormhole, which would go with the theory of relativity AND conserves matter. But it still is a theory that I accept.\n\nPS Penguins!!!
72098
Some new ideas in physics posit that there are more than the obvious 3 spatial and 1 temporal dimension. These theories are intended to explain all four fundamental forces in nature (electromagnetism, the strong nuclear force, weak nuclear force and gravity) by serving as a bridge between quantum mechanics and general relativity.\n\nIt turns out that one way that - perhaps - QM and GR can be connected is to postulate some extra dimensions, with an extra 7 spatial dimensions for a total of 11. If such extra dimensions exist they may be too small to interact with our standard 3D+time word.\n\nSo, in this case, a 6th dimension would be one of these smaller extra dimensions.\n\nIt should be noted, though, that thus far string theories are very theoretical, and there is no real physical evidence (yet), nor even a complete theory. Its still very much up in the air.\n\nA nice, simple guide to string theory basics can be found here:
911710
This is a very difficult concept and you probably won't get a great answer for it.  First off, this is only speculation - there is not a shred of evidence that there are 11 physical dimensions.  We can only claim 3 (time is considered the 4th dimension, because you need all 4 to describe to fully describe an event - for example, if you throw a rock in the air, if you want to know everything about where it lands you have to know the longitude, latitude, altitude and time with regards to a reference point).\n\n11 physical dimensions spring from string theory, which postulates that everything including time and space and matter and force are made up of vibrating "strings", either open ended or looped like rubber bands.  These strings are inconceivably tiny - if an electron were the size of the solar system out to Jupiter's orbit, filling in the volume, the string would be about the size of a granny apple.  It's thought that physical dimension 4-11 curled in on themselves at the Big Bang, and are only relevant on the same scales as the strings themselves - the other 3 expanded to fill the universe that we know today.\n\nOne way to image it is to imagine the Earth as a perfect sphere, without mountains or valleys, no hills, no riverbanks, no sidewalks, just a perfect, absolutely perfect sphere.  Now imagine an ant walking on the sphere.  The Earth is so fricken huge compared to the ant that the ant will only think there are two dimensions, x and y (assume that the ant has no self-awareness, and didn't realize he himself is above the x-y plane).  In reality, the Earth is a sphere, with a z component, but the ant will never know that.  The same, in reverse, could be true for the other 7 dimensions - they are so small we can never comprehend them.\n\nUnfortunately, with today's physics, that also means we can never confirm or deny their existence.  Without empirical proof, string theory is just beautiful mathematics, without a shred of proof.
983939
The problem with detecting the fifth dimension (or the sixth, seventh, and so on, it is believed there are 11) is that our bodies are built to measure only the three old-fashioned spatial dimensions, plus time as a fourth dimension.\n\nScientists have been hoping that at least one of the extra dimensions might be rolled up in such a way that its influence could be seen by measuring gravity's pull on a scale of, say, a millimeter or less. So far, no anomalies have been officially reported, although there have been occasional blips that are likely due to tiny experimental errors rather than the fifth dimension.
1094447
This is not a physics question it belongs in religion or mythology! \n\nBut since you asked I'll tell you.  \n\nThere are places ('dimensions') that do not exist in our material world but are observable by only a limited number of humans, commonly refereed to as psychics. No scientist can find these 'dimensions'  with any instrument.  Only the enlightened (spiritual) human mind can find these entities and communicate with them.  \n\nVarious religions have various names for these unobtainable to most 'dimensions' .  The Hindus call it the Ashok record. The Buddhists recognize it's existence but say avoid this place just try to get to Nirvana. Most Christians just call it the 'Spirit world'....So the answer is yes. if you want to call it the '4th dimension'. Sure.  Everyone else calls it what they like why not you.\n\nOh and by the way, Angels and Demons do exist. I have seen and felt them!
771512
You have just provided irrevocable proof that wormholes cannot exist which lead back to the same universe.\n\nThanks, thats my entire carreer in theoretical physics out the windows.\n\nYou B*stard!