What Are the Names and Hypotheses Behind the 11 Dimensions?

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Discussion Overview

The discussion revolves around the concept of higher dimensions in physics, specifically focusing on the names and hypotheses associated with the 11 dimensions proposed in string theory. Participants explore theoretical implications, relationships to forces, and various interpretations of dimensionality.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested
  • Conceptual clarification

Main Points Raised

  • Some participants note that higher dimensions do not have specific names, with distinctions primarily made between time and spacelike dimensions in various theories.
  • One participant mentions that movement in the 5th dimension is sometimes referred to as "ana" and "kata," suggesting these terms may have historical origins.
  • Another participant discusses the addition of dimensions in models, proposing that light may be influenced by vibrations in dimensions beyond the familiar three.
  • It is mentioned that the dimensionality of spacetime varies in different string theories, with bosonic string theory suggesting 26 dimensions, supersymmetric string theory suggesting 10, and M-theory proposing 11 dimensions.
  • One participant introduces the idea of "sub-dimensions" related to angular momentum, proposing a model that includes specific angles of rotation.
  • Another participant questions the rationale behind limiting sub-dimensions to multiples of 60 degrees, suggesting a continuum of angles could imply an infinite number of dimensions.
  • A participant expresses a view that higher dimensions might be perceived as lower dimensions, relating this to a model of the cosmos based on a single fundamental force.
  • There are discussions about the implications of compact dimensions on gravitational forces and the challenges of maintaining theoretical consistency in light of new models.
  • One participant suggests that our conscious experience may be linked to higher dimensions, proposing a philosophical perspective on awareness.

Areas of Agreement / Disagreement

Participants express a variety of views on the nature and implications of higher dimensions, with no consensus reached on the naming or significance of these dimensions. Multiple competing interpretations and hypotheses remain present throughout the discussion.

Contextual Notes

Some claims rely on specific theoretical frameworks, and there are unresolved questions regarding the definitions and implications of higher dimensions, particularly in relation to forces and gravitational effects.

  • #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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