Quote Originally Posted by andruejaysin
String theory requires either 10 or 26 dimensions, for mathmatical reasons I don't begin to understand.
String theory strongly suggests the existence of ten or eleven (in M-theory) spacetime dimensions, as opposed to the usual four (three spatial and one temporal) used in relativity theory; however the theory can describe universes with four effective (observable) spacetime dimensions by a variety of methods.

(Wikipedia)
WaZ Reviewed by WaZ on . the tenth dimension(confusing) i just watched this and even though its the dumbed down, its kind of confusing. it has great animation and the video makes you think. just watch it and tell me what you think about it. http://youtube.com/watch?v=qU1fixMAObI Rating: 5