All Questions
19
questions
2
votes
6
answers
290
views
Gravitational waves manifestation of 'physical' spacetime?
When a stone is thrown in water, water waves are created. The stone imparts its kinetic energy to water. Likewise a sound speaker imparts its kinetic energy to air molecules. When an electron falls ...
- 717
0
votes
1
answer
103
views
About Oscillation in Gravitational wave [duplicate]
I am a high school student studying about gravitational waves. I hope they are similar to other waves like sound waves, etc. So I what to know exactly what oscillates in a gravitational wave. Like in ...
- 41
0
votes
1
answer
492
views
Are gravitational waves produced only when a mass accelerates? [duplicate]
Why? They are not a form of EMR, are they.
Or are the rapidly changing ones the only ones we can detect?
user300520
0
votes
3
answers
229
views
Gravitational Wave detection [closed]
Does the detection of Gravitational Waves provide any significant headway into concretely answering as to what exactly is causing the arms of the interferometer to move or even why should they move at ...
- 648
0
votes
1
answer
103
views
In what way does general relativity predict gravitational waves? [duplicate]
When people say that general relativity predicts gravitational waves, how so?
user250721
0
votes
0
answers
37
views
How do gravitational waves carry energy/radiation? [duplicate]
How are gravitational waves related to gravitational radiation? How does gravitational radiation carry radiation/energy? What is it from?
user250721
1
vote
1
answer
266
views
Can dark matter actually be gravitational radiation?
It seems to exist like only space distortion, and it seems to move just like radiation (specially when galaxy clusters collide, dark matter goes trough unaffected just like some type of radiation).
...
- 291
0
votes
1
answer
64
views
Can a system be engineered to cause a standing wave resonance with gravitational waves
Can a system be engineered to cause a standing wave resonance with gravitational waves?
It appears that gravity waves can be reflected.
Do Mirrors for Gravitational Waves Exist?
Stephen J. Minter, ...
- 1
-5
votes
1
answer
72
views
Could gravitational waves give an illusion of an expanding universe? [closed]
Could the effect of “expanding” gravity (gravitational waves spreading at the speed of light) as it travels through space (and therefore becomes less local) red-shift all EM waves and thus give us ...
1
vote
0
answers
34
views
About the "Spindown problem"
I am studying General Relativity, following the lessons too, and some days ago the professor mentioned, in a very "fancy and quick" way a thing called "the spindown problems".
For what I understood, ...
- 3,705
2
votes
2
answers
353
views
Does Earth create gravitational waves on space/time as it turns around itself?
As you know earth turns around itself. At this point can we say earth can create waves on space/time?
- 181
45
votes
3
answers
7k
views
If spacetime is curved, how would anyone know? If anyone could tell, would that really be spacetime curving?
I never had a problem accepting that spacetime is curved as a result of matter, until I learned the LIGO experiments showed that evidently the curvature of spacetime can be measured. This, to me, is ...
- 1,663
8
votes
1
answer
2k
views
Does an object creates gravitational waves when only accelerating in one direction?
I know from reading about the gravitational waves detected by Ligo, that when an object has angular acceleration, it produces gravitational waves.
I'm wondering if an object creates gravitational ...
user109792
8
votes
3
answers
349
views
Gravitational waves in other dimensions
I know this question is purely speculative, as we don't know if more dimensions do exist and also we do not know if gravity is indeed stronger in other dimensions (if they were to exist). But, one of ...
- 1,016
3
votes
2
answers
335
views
Are gravitational waves effected by the curvature of space time (gravitational lensing)?
I have a basic question I can't seem to find anything on (I keep hearing about how gravitational waves and gravitational lensing were both predicted by Einstein).
We all know about the gravitational ...
- 133