Naked Science Forum

Non Life Sciences => Physics, Astronomy & Cosmology => Topic started by: John369 on 06/08/2019 07:48:39

Title: What is the 5th dimension?
Post by: John369 on 06/08/2019 07:48:39

1. Is it devoid of space and time?
2. Does it contain infinite number of 4D spacetime continuums?
3. Is it nothingness? Would Casimir effect work in energy harvesting?
4. Is it larger than our observable universe?
5. Is it compactified or wrapped up on itself with finite length?
6. Does it have a Planck length window to it? How big would that extra dimension be?
7. Does it have something to do with gravity? Is gravity embedded in spacetime itself?

Title: Re: What is the 5th dimension?
Post by: Colin2B on 06/08/2019 08:05:08

Which multidimensional theory are you referring to? Each has it’s own set of dimensions and their properties.

Title: Re: What is the 5th dimension?
Post by: yor_on on 07/08/2019 16:09:56

Gravity is presumed to be able to 'penetrate' anything. After all, it 'penetrates' a black hole. For the rest of it I have no idea. I will defer to Colin for that one.

Title: Re: What is the 5th dimension?
Post by: pensador on 07/08/2019 16:19:48

Quote from: John369 on 06/08/2019 07:48:39

2. Does it contain infinite number of 4D spacetime continuums? 3. Is it nothingness? Would Casimir effect work in energy harvesting? 4. Is it larger than our observable universe?

The holographic principal allows separated points in space to be mathematically connected. Space time dimensions might not be required. What properties does your 5th dimension allow? Which theory are you referring to?

No! the Casimir effect has nothing to do with energy harvesting.

Title: Re: What is the 5th dimension?
Post by: pensador on 07/08/2019 16:22:49

Quote from: John369 on 06/08/2019 07:48:39

7. Does it have something to do with gravity? Is gravity embedded in spacetime itself?

Via entropic gravity or the holographic universe, maybe it does. These are not standard model theories.