All Questions
9
questions
2
votes
1
answer
183
views
Why can't the answers to equations be infinity?
When talking about black holes and singularities, most books say that combining relativity and quantum mechanics gives the answer of infinity in some equations. They also say that:
Infinity is the ...
- 23
-1
votes
2
answers
175
views
Why do we keep referring to the Heisenberg Uncertainty Principle in situations that we don't - and can't - know about? [closed]
In all of my reading in physics, I have been surprised by the number of times that I read "this can't exist" or "that can't exist" because of the Heisenberg Uncertainty Principle. ...
- 4,783
2
votes
2
answers
103
views
Why should a black hole be infinitely dense? [duplicate]
I have been listening to this on Discovery for centuries of my childhood!! That when the heavy core of a star collapses under its own gravity, it shrinks to an infinitely dense point called "...
- 421
-1
votes
1
answer
92
views
Centre of a black hole
In a text intended for people without background in general relativity or quantum mechanics, I read two statements which are false or do not make sense, if I'm correct. Am I correct, and why (not)?
...
- 1,169
3
votes
1
answer
352
views
Do merging BHs have two or just one singularity?
There are a lot of questions about BH mergers on this site, and based on those, there are two main possibilities:
1.
Initially, the merged BHs, now a joint single BH, have two singularities, that ...
- 29k
1
vote
3
answers
150
views
0% of speed of clock outside infinite well
Juan Maldacena says here: "For a very massive and very compact object the deformation (or warping) of spacetime can have a big effect. For example, on the surface of a neutron star a clock runs slower,...
- 89
-3
votes
1
answer
66
views
Has quantum mechanics been able to define the centre of a black hole? [closed]
It is said that quantum mechanics has defined everything we observed everything so far, but did it predict the existence of the Higgs Boson beforehand and has it been able to define the Singularity?
1
vote
2
answers
578
views
Black hole maximum mass/stress-energy limit?
I have read these questions:
Why does a black hole have a finite mass?
Are black holes an infinite source of energy?
Black Hole: mass density or energy density?
Do all black holes have the same mass ...
- 29k
9
votes
4
answers
1k
views
An electron falling into a black hole
If an electron falls into a black hole. How can the Heisenberg uncertainty principle hold? The electron has fallen into the singularity now so it has a well defined position which means that it doesn'...
- 91