All Questions
4 questions
0
votes
0
answers
27
views
Black Holes and Gravity [duplicate]
We know that nothing including light can escape the gravitational pull of black hole. Now special relativity says that nothing travels faster than speed of light. Then how can effects of gravity due ...
1
vote
0
answers
50
views
Counterintuitive effect between event horizons of a 'binary black hole system'
I recently posted a question on my 'mobile phone profile' where I cannot post images and videos so I am trying to use this profile to solve my incomprehension of a gravitational-tidal effect that ...
- 467
2
votes
2
answers
136
views
A closed laboratory free falls and approaches the event horizon of a Black Hole. Are measurements of physical constants affected?
A closed laboratory is in perfect free fall and hence is an inertial frame. This lab is falling toward the event horizon of a Black Hole. The lab is sufficiently small and the event horizon is ...
- 143
1
vote
2
answers
251
views
How high can a light-beam (or apple) travel when pointed (thrown) out from the event horizon? [duplicate]
I am a bit confused at the idea that information cannot be sent out from behind the event horizon of a black-hole. Consider the following figure: (source This link)
An apple thrown up from the ...
- 3,443