What Are the Names and Hypotheses Behind the 11 Dimensions?

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The discussion centers on the naming of higher dimensions in physics, noting that they typically lack specific names and are often represented by variables like x1, x2, etc. It highlights that in string theory, dimensions are distinguished by their roles, with time being separate from spacelike dimensions. The conversation also touches on the implications of a dodecahedron hypothesis for the 11-dimensional theory and how additional dimensions can affect gravitational constants. Various terms for movement in higher dimensions, such as "ana" and "kata," are mentioned, alongside the complexities of angular momentum in these dimensions. Overall, the dialogue explores the intricate relationships between dimensions, forces, and theoretical models in physics.
  • #31
Netme said:
How do you know it is space like?

That's the way the physics comes out. Physicists are not going to assume more than one time dimension until they see some real reason to do so. There hasn't been any so far. So all their theories follow the relativistic model: one time dimension and the rest spacelike.
 
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  • #32
selfAdjoint said:
That's the way the physics comes out. Physicists are not going to assume more than one time dimension until they see some real reason to do so. There hasn't been any so far. So all their theories follow the relativistic model: one time dimension and the rest spacelike.

I mean how do you know the physics represent space. Could they be representing something that just has the properties of space?
 
  • #33
Doesn't matter if it's "space" or something "just like space". What matters is what the equations say, and they can't tell the difference. You have the same thing in general relativity, with "curved spacetime". Is spacetime a thing? That it can be curved? Or do we just mean that geometry varies from point to point?
 
  • #34
Maybe i should refine my question.. What kind of form does this space take and could you compare it to anything in form that can be seen by us.
 

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