Is Gravity Leaking Into Other Dimensions?

[phillip2810]

Okay I'm definitely a layman but let me see if I can explain this. I recently heard of a theory that goes something like this: In relation to all the other physical forces in the universe, gravity is incredibly weak. To explain this, some think that our gravity is the result of a much more powerful force leaking into our dimension from higher ones. Or perhaps our gravitational force is leaking out into the lower dimensions. My question is about the validity of this theory. I don;t expect anyone to come out and prove it wrong or right or anything. But I was just looking for the opinion of someone with more experience than myself.

Phil

 

[Integral]

This is pure supposition, it has no physical basis what so ever.

 

[Ivan Seeking]

Hello phillip2810 and Welcome to PF.
I suspect that you might be stating things incorrectly. If you haven't seen this you should watch it. This likely covers the ideas that you have heard expressed, but in their proper form.
https://www.physicsforums.com/showthread.php?s=&threadid=8241

 

[tribdog]

actually I read something along those lines as well, it's been a while though so I don't remember where. I think it was in a magazine, either Discover or Scientific American, but it could have been one of about 100 physics books I've read in the past couple of years. I believe the article was about ways to "see" the extra dimensions

 

[Hat_Man]

All forces are not equal and gravtiy does not need some sci-fi explanation to that. gravity is the result of two forces, one being the atraction of all matter to each other due to a part of string theory and another is the bending of space-time known as relativity. there is no need to make it more complicated with extra dimensions at all.

 

[juju]

Hi,

Some string theorists say that gravity is so weak because gravitons can travel across the dimensions between branes.

juju

 

[PIT2]

All forces are not equal and gravtiy does not need some sci-fi explanation to that. gravity is the result of two forces, one being the atraction of all matter to each other due to a part of string theory and another is the bending of space-time known as relativity. there is no need to make it more complicated with extra dimensions at all.

Maybe you didnt know, but string theories all talk about 10 dimensions (or 11). So naming string theory as a cause of gravity and then saying there is no need for extra dimensions doesn't really make sense, unless you know a 4-dimensional string theory.