ok how can m-theory be established if all 5 string theories have such a diffrent behavior and apperance of strings.for example type I have closed and open loops, but type IIA and IIB have open string that are attached to D-Brane. i also have a question about the 11th dimension
2007-12-10 13:55:52 · 3 answers · asked by Anonymous in Science & Mathematics ➔ Physics
I consider such things mathematical theories, not physical. They have to make predictions not already covered by prevailing theory to graduate to the latter. So don't sweat it.
2007-12-15 10:49:22 · answer #1 · answered by Dr. R 7 · 0⤊ 0⤋
I think it might be that some strings might be open, others might be closed, etc, so it takes the M-theory to describe the whole thing. Anyway M-theory isn't complete yet, so who knows what the final thing is going to look like, if it ever does pan out. For that matter string theory isn't proven either, it's just that the models seem to fit really well in certain circumstances. In the end theycould very well be discarded for a newer/better/completely different theory. There's a nice article on this in Wikipedia
2007-12-10 15:10:08 · answer #2 · answered by Anonymous · 1⤊ 0⤋
sophisticated problem. seek on to search engines like google. just that will help!
2014-12-10 20:34:38 · answer #3 · answered by candace 2 · 0⤊ 0⤋