All Questions
6
questions
3
votes
1
answer
199
views
Will the ever accelerating space expansion (like at the level of inflation) eventually break causality?
I have read this question:
requires that "for an action at one point to have an influence at another point, something in the space between the points, such as a field, must mediate the action&...
- 29k
1
vote
3
answers
202
views
What is the result that that differs by many orders of magnitude between QM and GR? [duplicate]
It is well known that QM and GR are deemed incompatible due to a discrepancy in some calculations which I have read can differ by large magnitudes. What are these calculations to which people are ...
- 145
0
votes
1
answer
572
views
How do we know what happened during the Planck epoch era of the big bang?
The Cosmic Microwave Background provides the left over radiation of the big bang. Cosmologists have theorised what happened at the Planck epoch era of the big bang.
Where is the evidence of what ...
- 107
0
votes
1
answer
106
views
Which theoretical models are there between quantum mechanics and cosmology? [closed]
I'm an enthusiast/hobbyist right now and I'm quite curious about the subject of understanding which scales come between the quantum scale (ab initio/first principles) and the macroscopic scale. After ...
- 101
0
votes
1
answer
115
views
Fractional number of particles in the universe?
Is it possible, that the metagalaxy contains a fractional (non whole) number of particles or fractional number of a particular kind of particles (such as electrons)?
Sorry, if my question is stupid, ...
- 375
3
votes
4
answers
1k
views
Do subatomic particles have finite (i.e. non-zero) size?
We know atoms are mostly "made" out of empty space, so the nucleus and all the subatomic particle are very small in compared to the magnitude of the atoms. We also know that atoms are incredibly small,...
- 2,983