All Questions
8
questions
7
votes
1
answer
747
views
Can gravity radiate?
In electromagnetism, when a charge accelerates, it emits radiation. We know this because we can write the retarded potentials, apply $\vec E=- \nabla V-\frac{\partial \vec{A}}{\partial t}$ and $\vec B=...
- 1,616
3
votes
0
answers
80
views
Why does the wavelength of gravitational waves increase with larger energy?
Gravitational and electromagnetic waves are quite similar, as both are fundamental force waves that travel at the speed of light and have no limit to their range, but when it comes to electromagnetism,...
- 413
0
votes
1
answer
78
views
Dark matter and gravitation
Dark matter does not interact with the electromagnetic force, however does interact with the gravitational force. Do we know if there are any big ‘clumps’ (like a star) of dark matter? If they exist (...
- 1,016
3
votes
2
answers
427
views
Is there a simple formula for the gravitational self-force (due to emission of gravitational waves) in the classical limit?
UPDATE: To clarify things in response to comments below, I want to reformulate my question in a very concise and abundantly clear form. Let's consider an object of a known mass M that moves under the ...
- 1,599
2
votes
0
answers
78
views
Why gravitational waves are not part of thermal phenomena?
Electromagnetic waves are part of thermal phenomena in the form of thermal radiations.
But why gravitational waves do not show up as a thermal phenomenon, for example, why gravitational waves do not (...
- 127
1
vote
1
answer
202
views
Strength of gravitational waves vs. electromagnetic waves
If the recent gravitational wave's energy had reached us as visible light, how bright would it have been? Stackexchange complains about the form and brevity of the question so i add something... if it ...
- 213
1
vote
2
answers
100
views
What can and can't gravitational waves affect?
Owing to the relative weakness of gravity, I would have assumed that the gravitational waves detected by LIGO couldn't expand / contract the nuclei of atoms (governed by the strong interaction) or ...
- 1,059
46
votes
9
answers
12k
views
Is it theoretically possible to shield gravitational fields or waves?
Electromagnetic waves can be shielded by a perfect conductor. What about gravitational fields or waves?
- 563