# Different orders of dimensions

## Main Question or Discussion Point

Different orders for different dimensions.

e.g.
time(0D): 0th order
'Normal' spatial dimensions (1D,2D,3D): 1th order.
'Hyper' dimensions: 2nd order.
dimensions up to D15: 3rd order.
D16 up to D-idontknow: 4th order.
etc, etc.

Am I completely wrong?

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Before we even begin to talk about dimensions, we must ask the following questions:
what is a dimension physically? What is space physically?

Before we can order dimensions we must be clear as to what exactly we are talking about. Also what is the conceptual difference between dimension and the order of dimension, what is the purpose for ordering the dimension?

John G.

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General literature speaks about three dimensions and time therefor astating difference nl. space and time (later on put together:spacetime). furthermore if spoken about a hypercube "..it's a cube in the fourth dimension..." actually meant is D5. And up to D9 you can probable visualize mentally.

Nowadays SuperString works with 10 dimensions; not 5 or 6 or 21. And SuperGravity does it with 11; not 10 or 12 or 43. Behold....SS 10 and SG 11...interchangeable. And I feel that we will fine-tune the whole lot with dimensions up to D15.

Probablely dimensions aren't that different from each other, but because we humans seem to get it in chuncks (first three spatial dimensions, then time, then the dimensions for the hyperthingies, etc. etc.) it might be so
that dimensions reveal themselves (or get useful) in portions. Maybe thats why I never heard from the 8-dimensional-string-theory.

And when you want to explain graviton hopping, noninteger branes, bubblebranes and intermitting time you just have to wait another 7 decades or so, we might get 37-dimensional theories.

General literature speaks about three dimensions and time therefor astating difference nl. space and time (later on put together:spacetime). furthermore if spoken about a hypercube "..it's a cube in the fourth dimension..." actually meant is D5. And up to D9 you can probable visualize mentally.
You still haven't answered the question, what is a dimension? You use the word dimension but do you know what it means?

John G.

(A dimension is alone.)

It's a measure of something which can not be formed by combination.

chroot
Staff Emeritus