All Questions
11
questions
2
votes
1
answer
161
views
When you are in a gravitational field, do object far away get physically closer to you as you get closer to the mass?
An observer A is close to a black hole and an observer B one light year away. They are both remaining at constant radial distance from the black hole. A is at 2 Rs away from the center of the black ...
- 171
6
votes
2
answers
750
views
Can a Kerr black hole be viewed as a Schwarzschild black hole by changing the frame of reference?
In a local universe empty of any matter except a Kerr black hole and an observer, that observer is spinning at the same rate as the black hole and observes it from a great distance directly above its ...
- 643
0
votes
1
answer
51
views
"Different reality" inside a black hole
why does our perception of space and time entirely change inside a black hole? And why does time not stop inside it from the perspective of the inside observer, however, extremely slows down for the ...
- 27
9
votes
4
answers
2k
views
Is time sped up when orbiting a black hole? Why? What does that mean?
I was watching a very interesting short documentary in which the author said that while it takes 8 minutes in space to loop around the black hole, an observer from Earth observes that it takes 16 ...
1
vote
0
answers
80
views
Can matter actually go "inside" a black hole? [duplicate]
Pardon my question but I am no astro-physicist.
If a black hole is a singularity, A.K.A. a single point in space-time which is infinitely small and which has an infinitely high density, can matter ...
- 111
1
vote
0
answers
56
views
Thoughts on Black Holes [duplicate]
Given that time slows to a stand-still at the event horizon of a Black Hole, how long would it take a black hole to form, from the perspective of an outside observer?
It would seem, as a massive star ...
- 25
0
votes
1
answer
243
views
For a distant observer can a black hole form and grow in finite time? [duplicate]
Consider an observer at a significant distance away from a collapsing star.
As such when a singularity is born at the core of the star the observer would never see it grow anymore than the ...
- 838
0
votes
1
answer
686
views
Does infalling matter ever cross the event horizon? [duplicate]
Assume you are immortal, then say if you fell towards a blackhole,
to an observer far away you will appear to slow down as you approach event horizon and gradually come to stand still.
However for ...
- 838
0
votes
1
answer
600
views
Does a black hole really slow down time?
When an object gets pulled into a black hole it seems to slow and stop, but could it be possibly be because the speed of light that hit the object and came back was slowing down as the object got ...
- 11
2
votes
1
answer
275
views
Can you shine a laser on an object that has fallen into a black hole? [duplicate]
I've been having a small back and forth on another website about the nature of objects that fall into black holes.
I know that they never reach the event horizon from the perspective of a distant ...
- 31
1
vote
1
answer
1k
views
Difference between Distance and Space
So I take particle A and place it in space, then I place particle B 1,000,000 light years away from particle A. I strike a line between the two, and measure that line as having a length of 1,000,000 ...
- 87