All Questions
10
questions
0
votes
1
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75
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Does intrinsic curvature in a higher dimension mean that the lower dimensions also exhibit curvature?
If our universe has intrinsic curvature in a higher dimension, would that mean the 3 dimensions that we live in would be curved? and if so would the lower dimensions exhibit intrinsic or extrinsic ...
- 23
25
votes
10
answers
7k
views
Why do physicists say that spacetime is not bending "into" or "out" of a fourth dimension?
I understand that there is no need for a fourth-dimensional space to bend into, but why do physicists seem to be against the idea? Is this simply because there is no proof of a fourth dimension, or is ...
- 510
0
votes
3
answers
954
views
Gravity bends space, so how can space have only 3 dimensions? [duplicate]
Due to the laws of gravity and electromagnetic attraction (decreases with $\frac{1}{r^2}$) we know that space should be limited to 3 dimensions.
At the same time we know that gravity bends space. All ...
- 117
0
votes
0
answers
32
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Is one dimension the same as one space-time?
In this Cern article, https://home.cern/science/physics/extra-dimensions-gravitons-and-tiny-black-holes, it states:
"In our everyday lives, we experience three spatial dimensions, and a fourth ...
- 179
0
votes
1
answer
94
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Gravity creating other dimensions [duplicate]
It is a well known fact that gravity can bend space, kind of like a rock placed on a sheet of paper, bending the paper. But, doing this will make another third dimension, that the marble actually ...
0
votes
0
answers
191
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Does gravity exist in higher dimensions? [duplicate]
I’m very curious to know whether gravity exists in higher dimensions. Because it follows the inverse square law it seems to me that it should be 3D only (just intuition). Is there any mathematical ...
0
votes
3
answers
83
views
Query regarding bent space-time in General Relativity [duplicate]
I am just a beginner in this topic and I accept I haven't gone through whole of the content of GR. However after going through some of the basic ideas, I encountered a problem.
If I did my homework ...
user143929
1
vote
2
answers
127
views
What are the evidence that gravitational force act across all spatial dimensions?
I keep hearing in the folk theory of physics that gravitational force (if a force it indeed is) will act across parallel universes or higher spatial dimensions.
Where did this idea come from? Does it ...
- 916
0
votes
1
answer
143
views
Black hole's singularity: Does it has to be multi-dimensional? [closed]
We assume that there is an infinite density at the center of a black hole. But we also know that if it was really infinite, it would apply an infinite gravitational force to masses even if they were ...
- 175
8
votes
3
answers
349
views
Gravitational waves in other dimensions
I know this question is purely speculative, as we don't know if more dimensions do exist and also we do not know if gravity is indeed stronger in other dimensions (if they were to exist). But, one of ...
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