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physics.about.com...
As with much of quantum physics, the mathematics that applies to string theory cannot be uniquely solved. Physicists must apply perturbation theory to obtain a series of approximated solutions. Such solutions, of course, include assumptions which may or may not be true.
The other exemplar that led to quantum mechanics was the study of electromagnetic waves such as light. When it was found in 1900 by Max Planck that the energy of waves could be described as consisting of small packets or quanta, Albert Einstein exploited this idea to show that an electromagnetic wave such as light could be described by a particle called the photon with a discrete energy dependent on its frequency. This led to a theory of unity between subatomic particles and electromagnetic waves called wave–particle duality in which particles and waves were neither one nor the other, but had certain properties of both. While quantum mechanics describes the world of the very small, it also is needed to explain certain “macroscopic quantum systems” such as superconductors and superfluids.
String theory is of interest to many physicists because of the mathematical consistency involved and because of the large number of forms that the theories can take. String theory strongly suggests that spacetime has eleven dimensions,[1] as opposed to the usual three space and one time, but the theory can easily describe universes with four observable spacetime dimensions as well.
I know these are a little over the top, but enjoy.
Originally posted by WickettheRabbit
Well. I've seen the Elegant Universe program and I just watched two hours of an updated Stephen Hawking special...but they don't answer the question for me.
Originally posted by sty
reply to post by SLAYER69
I would go that far to correct you in saying that the String Theory is a speculation. It will become a theory in the moment when we can find evidence for it .
From what I saw and from what I’ve read, the extra dimensions are simply included just to make the math work. Is that right?
Are we operating in the other dimensions or are we only operating in the 3 dimensions (4th being time, I suppose)?
Originally posted by WickettheRabbit
Are the extra dimensions used in String Theory just made up to make the math work?