Hidden dimension in string theory

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String theory posits that the universe consists of 10 spatial dimensions plus one time dimension, totaling 11 dimensions in M-theory. The additional dimension is introduced to unify the five different string theories and to incorporate gravity, providing a more comprehensive framework for understanding fundamental forces. This 11th dimension allows for the existence of higher-dimensional objects called branes, which play a crucial role in the theory. The complexity of these dimensions helps explain various physical phenomena that cannot be accounted for in lower-dimensional theories. Understanding these dimensions is essential for a complete grasp of string theory and its implications for the universe.
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Hey guys,
who can tell me briefly about the 10+1 dimensions in the string theory? I am going to deliver a short presentation on string theory ,but i am not very clear about the reason that we have to introduce 11dimendion to string theory ...
 
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This may be helpful: https://www.physicsforums.com/blog.php?bt=6149
 
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Thread 'The "electroweak eta meson"'

This is an alert about a claim regarding the standard model, that got a burst of attention in the past two weeks. The original paper came out last year: "The electroweak η_W meson" by Gia Dvali, Archil Kobakhidze, Otari Sakhelashvili (2024) The recent follow-up and other responses are "η_W-meson from topological properties of the electroweak vacuum" by Dvali et al "Hiding in Plain Sight, the electroweak η_W" by Giacomo Cacciapaglia, Francesco Sannino, Jessica Turner "Astrophysical...
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