What Are the True Nature and Meaning of Extra Dimensions?

  • Thread starter Thread starter MartianVision
  • Start date Start date
  • Tags Tags
    Dimension
Click For Summary
Extra dimensions beyond the three spatial dimensions (width, height, depth) often include time as the fourth dimension, making our universe a four-dimensional construct. Additional dimensions, such as those proposed in string theory, may be more complex and geometrical in nature. Understanding these extra dimensions can involve visualizing higher-dimensional figures, but it's important not to get overly fixated on these representations. The discussion emphasizes the importance of continuing to learn about the nature of these dimensions. Overall, the concept of extra dimensions is multifaceted and requires further exploration to grasp fully.
MartianVision
Messages
3
Reaction score
0
I'm a little confused by extra dimensions. People seem to say different things about the 'extra dimensions. Everyone seems to say that there are 3 basic dimensions (width, height, depth), however some people say different things about what additional dimensions are, just wondered if someone can clear it up.

Is a fourth dimension time, and the fifth, sixth seventh etc. the different dimensions related to string theory, or are the extra dimensions more geometrical, such as this image:
http://www.dimension1111.com/images/dimensions1.png

Or am I just getting completely muddled up?

Sorry if I didn't really explain it too well, I'm terrible at explaining myself lol, and sorry if it's in the wrong forum.
 
Physics news on Phys.org
The picture you've given shows projections of higher-dimensional figures. Yes, they are "geometrical" and look exactly like that. This is a stage in learning about higher dimensions, but don't get stuck with it. Keep learning.
 
We live in a 4D universe if you consider time as a dimension. According to special relativity there is no reason it can't be a dimension as well
 

Thread 'EPR revisited'

In an inertial frame of reference (IFR), there are two fixed points, A and B, which share an entangled state $$ \frac{1}{\sqrt{2}}(|0>_A|1>_B+|1>_A|0>_B) $$ At point A, a measurement is made. The state then collapses to $$ |a>_A|b>_B, \{a,b\}=\{0,1\} $$ We assume that A has the state ##|a>_A## and B has ##|b>_B## simultaneously, i.e., when their synchronized clocks both read time T However, in other inertial frames, due to the relativity of simultaneity, the moment when B has ##|b>_B##...
View full post »

Similar threads

Undergrad Are these descriptions about extra dimensions really true?
  • · Replies 17 ·
Replies
17
Views
3K
High School What is the True Dimension of Human Perception?
  • · Replies 4 ·
Replies
4
Views
4K
Undergrad Testing string/m-theory extra dimensions prediction
  • · Replies 10 ·
Replies
10
Views
3K
Is AI a Portal to Another Dimension?
  • · Replies 40 ·
2
Replies
40
Views
5K
High School I can't understand more than 3 spatial dimensions
  • · Replies 6 ·
Replies
6
Views
4K
Graduate Explaining the Hubble tension with fundamental physics
  • · Replies 6 ·
Replies
6
Views
4K
Inertial frame of reference of light speed (And beyond)
  • · Replies 12 ·
Replies
12
Views
3K
Are Extra Non-Planck Dimensions Possible and What Could They Mean for the LHC?
  • · Replies 2 ·
Replies
2
Views
3K
What does it mean for extra dimensions to be very small?
  • · Replies 5 ·
Replies
5
Views
4K
What are the Extra Dimensions in the LHC experiment?
  • · Replies 7 ·
Replies
7
Views
4K