All Questions
6
questions
1
vote
1
answer
97
views
Dark energy contributing to, or modifying, mass estimates?
I have found some papers (like this one: https://www.aanda.org/articles/aa/full_html/2009/45/aa12762-09/aa12762-09.html) which say that dark energy increases the potential energy in a system of a ...
- 2,462
1
vote
2
answers
189
views
What is the gravitational field intensity of a uniformly distributed mass content in Newtonian gravity?
In an infinite universe composed of single point masses which can be simplified as a uniformly distributed mass density, what is the equation for the gravitational field intensity in Newtonian gravity?...
- 476
0
votes
1
answer
353
views
Has this random youtube crackpot trying to disprove GR inadvertedly stumbled on a genuine prediction of it? [duplicate]
I'm an Astrophysics major. I was watching strange fringe physics crackpots on Youtube to make fun of them, because I'm an acollierastro, planarwalk kinda gal. I came across this guy who thinks Black ...
5
votes
2
answers
2k
views
Is it the mass that bends spacetime, or is it the gravity?
I had understood that mass bends spacetime and that curvature generates gravity, but I have recently read that what bends spacetime is gravity.
Which comes first? Does the mass generate gravity, and ...
- 173
2
votes
0
answers
59
views
Gravity in a universe where all energy has been turned to mass [closed]
If all energy in the universe was turned to mass would gravity work?
- 21
0
votes
0
answers
34
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Mass and Gravitational Force [duplicate]
Why do mass has a tendency to attract other masses and form bigger cluster of mass?
What cause gravitational force to exist?
Is it so that at one point of time all matter in universe will form ...
