Is string theory finished or proved incorrect in theory?
953559
It has been proven a hoax
1151572
Nope - String theory was created as a way to make the laws of the universe apply in all situations.  Without string theory, we use one set of laws for sub-atomic particles and another set for everything larger.  Because laws of the universe need to be true everywhere for them to really be "laws," string theory was developed as a way for everything to be governed by one set - the laws remain constant no matter what level you are looking at.
470490
String Theory says there may be several more; up to 10 more dimensions, IIRC, but they can generally be ignored, in "real life".  This is because the extra 10 or so are tightly "wound up", so they act as if they are not there, most of the time.\n\nWords do not suffice to discuss String Theory; you need mathematics.  Howver, my maths skills are limited, so I just read the simplified verbal summaries.
723768
according to string theory \nthere r 4 dimensions\n3-space,1-time \n[11 of course which can't be perceived normally]\nthe dimension of space - time is variable in string theory , in the sense that we have to solve the string equations to determine it\nit's too difficult because of the great complexity of the theory\nif the ans comes out to be 4 then we'd have revealed one of the most abiding and mysterious facts since the dawn of civilization
1018053
there are problems in your theory... first what can be considered FIXED in the universe. nothing is fixed... its a relative term in this situation.  Also an unbreakable string is an impossibility. There is no such situation where something is completely unbreakable. Even the smallest particle can be broken by enough outside force. \n\n I would like to take your idea to a different level. Lets say it was possible to have an unbreakable string.  Send the ends of this string into 2 different black holes.  Visualize 2 black holes connect by a string.  To answer your first question about seeing the string... You would able to see it until it got to the point where the light wouldn't be able to escape the gravitational pull of the black hole... In theory if the string is unbreakable then it will be impervious to heat and pressure... so it wont melt and crush... Eventually the constant pressure on the string would bring the 2 black holes together. Until the combined gravitational pull of both black holes on each other cause a cataclysmic event where the combined speed and pull of the black holes would cause the entire universe to collapse on itself... and everything as we know it would cease to exist
57950
Not yet.\n\nThis is an incredibly active area of research in theoretical physics.  String theory is the most popular path of investigation right now, and is being worked on intensely.
85053
consult the below link...very brief...http://en.wikipedia.org/wiki/String_theory
308069
String theory is a step in the direction for the GUT.  But string theory itself is out the window.  GUT will mostly likely be a hybrid of string and quantum.  Each answer some of the most important fundamental questions, but not the same ones and not all of them.  Essentially string theory just states matter is made up of vibrating strings of energy.  For a good book on the subject, three roads to quantum gravity by smolin is excellent.  He is partial to quantum theory but gives both justice and goes a little into some radical ideas that don't branch from either quantum or relativity.
91646
String theory is a model of fundamental physics whose building blocks are one-dimensional extended objects (strings) rather than the zero-dimensional points (particles) that are the basis of the Standard Model of particle physics. For this reason, string theories are able to avoid problems associated with the presence of pointlike particles in a physical theory. Studies of string theories have revealed that they require not just strings but also higher-dimensional objects.\n\nThe basic idea is that the fundamental constituents of reality are strings of energy of the Planck length (about 10-35 m) which vibrate at resonant specific frequencies[1]. Another key claim of the theory is that no measurable differences can be detected between strings that wrap around dimensions smaller than themselves and those that move along larger dimensions (i.e., effects in a dimension of size R equal those whose size is 1/R). Singularities are avoided because the observed consequences of "big crunches" never reach zero size. In fact, should the universe begin a "big crunch" sort of process, string theory dictates that the universe could never be smaller than the size of a string, at which point it would actually begin expanding.\n\nInterest in string theory is driven largely by the hope that it will prove to be a theory of everything. It is a possible solution of the quantum gravity problem, and in addition to gravity it can naturally describe interactions similar to electromagnetism and the other forces of nature. Superstring theories include fermions, the building blocks of matter, and incorporate supersymmetry. It is not yet known whether string theory is able to describe a universe with the precise collection of forces and matter that is observed, nor how much freedom to choose those details the theory will allow. String theory as a whole has not yet made falsifiable predictions that would allow it to be experimentally tested, though various special corners of the theory are accessible to planned observations and experiments.\n\nWork on string theory has led to advances in mathematics, mainly in algebraic geometry. String theory has also led to other theories, supersymmetric gauge theories, which will be tested at the new Large Hadron Collider experiment.
205330
The Big Bang Theory has not been proven. Don't believe every piece of hype that you read. Many predictions of BB and related theories have been verified. Many others have been contradicted. Same with some ID and Creation theories. Some have been verified, some have been contradicted. Many evidences claimed to support a billions-years-old universe also support other explanations. Usually it's just a matter of premises.
902557
If superstring theory is correct and really needs 10 or more dimensions, then it would'nt surprise me if at least one more in the pile was temporal.  If I had to bet, I'd bet against it.
415793
possibly its infinite\nbut its an argument you will find quite interesting to discuss with REAL people. im no astronomer but a thirteen year old student.i can tell you that there is the M-theory which states of parallel universes.the string theory says that there is a 12th dimension which is outside the boundary of this universe. Now we ask what is beyond that? its hard to answer. But we should never let our Heads be larger than our Hats!
708235
each theory is immensely successful in its particular area to about one part in ten to the fourteen it may be that we need separate theories or who knows someone may produce a unified theory although string theory hasn't done it yet (and may never)
615732
He was never able to write it. He was in the middle of trying to create one theory for electromagnatism and his own theory of relativity when he died. It is yet to be done to create such a theory, although the string theory could possibly be it.
246328
String theory is still quite new in the world of physics, but it has drawn tremendous attention to all physicists around the world. \nFor the last 80 years or so physicists have been trying to find a theory that will combine the theories of quantum mechanics and general relativity. These two theories describe everything in the universe. General relativity does this on the scale of the very large e.g. planets, galaxies and so on. When it comes to subatomic scale, like protons, quarks etc. general relativity breaks down. This is where quantum mechanics is very accurate, but quantum mechanics does not work when applied to the very large objects. \nGeneral relativity basically deals with gravity and has a calm feeling to it. The predictions it makes is always sort of neat and precise.\nQuantum mechanics on the other hand deals with the uncertainty principal and has a very chaotic feel to it.\n\n\nString theory is what physicisits hope and believe might be the theory combines these two super theories. String theory predicts that every particle (even quarks) are made up of much, much smaller particles called strings. They are not really particles, they are actually vibrating strands of energy. Each of these strands vibrate in a different way. \n\nThe mathematics behind string theory works so well that many believe string theory has to be true, but unfortunately there is currently no way to prove string theory with experiment. If string theory is true, then some of our notions of the universe will have to change dramatically. We will have to accept that we actually live in an 11-dimensional universe.
841480
We're still sorting most of that out.  \n\nThe thing about science is that it's not afraid to say, "you know what, we're not sure yet."  And the exact mechanisms as to how we got from bang to here are still being worked on.  But that doesn't mean God said, "let there be light," it just means we don't know.\n\nIf you've never heard of string theory, then you're in ZERO position to comment on big bang.
283399
STRING THEORY, is one of the theories of modern sciences where it states that every thing in this universe is made of strings. The visual and other evidence of differences in objects is how the strings are. For example, longer strings mean more red color (this is a hypothetical example.) \nString Theory was predicted to give solutions to lot of problems in modern Physics. It has not ben proved yet, thus is not a complete true science yet.