I have been recently reading a lot on Super Strings and M-Theory, and I discussed this with selfAdjoint earlier but he said I should advise to someone say, like(adsbygoogle = window.adsbygoogle || []).push({}); jeff, Doc Al, Integral, anyone with a very experienced knowledge of this on this matter of perplexed dimensional frustration.

In M-Theory which is trying to explain the theory of everything theorists speak about 11 dimensions, adding one because of string theory. But, what I don't understand is:

- How does M-theory work though?
- Why does everything work out perfectly when there are 11 dimensions instead of say, . . .8. Why 11, why not another number?

Conclusion:Specifically saying how do theorists determine 11? What is the math behind 11?

I know now that nonsupersymmetric bosonic string theory for solving gives you that D = 26 and then that supersymmetry "eats" 16, giving you a duality of five and somewhere adding one dimension, but that's in abstract laymen's terms, translating to how do this happen and somebody explain-speak.

Note: The above is only because of help from sA. Otherwise I wouldn't have a clue!

I have listened to selfAdjoint and I believe he was on the right path because it made sense but he said his study group waslimitedon increasing his already vast knowledge, so he said I should make this into a thread, so I did.

Now, I have been referring to this site: http://www.theory.caltech.edu/people/jhs/strings/str154.html to try to clear some confusion, but it isn't working, so I need your help! It explains a lot of concepts, but not the concept of 11.

I appreciate it if you can resolve this for me!

Thanks,

Jeebus

**Physics Forums - The Fusion of Science and Community**

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# M-Theory? What's wrong with you! Jeff?

Loading...

Similar Threads for Theory What's wrong | Date |
---|---|

B M theory, holography, many worlds -- What we do know? | Nov 15, 2017 |

B What exists between Strings in String Theory? | Apr 25, 2017 |

B What is the theory of gravitons | Feb 15, 2017 |

I What approaches to quantum gravity are QFT's? | Jan 16, 2017 |

B What base to classify different string theory? | Aug 26, 2016 |

**Physics Forums - The Fusion of Science and Community**