All Questions
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In terms of gravitational waves, what terms or components are actually embedded within $h_{\mu\nu}$?
In terms of gravitational waves:
$$g_{\mu\nu}=\eta_{\mu\nu}+h_{\mu\nu}\text{ with } |h_{\mu\nu}|\ll 1$$
The components of $\eta_{\mu\nu}$ are $[-1,1,1,1]$ which expresses flat Minkowski spacetime. ...
- 335
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How does according to modern physics collision between two massive black holes create new space or new spacetime?
Now (hypothesis) -- And the Physics of Time
In this page the author talks about (find in page) (in the context of LIGO Observatories-->) "In their most powerful event, reported just this past ...
6
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5
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How do gravitational waves propagate?
How do gravitational waves work like water waves? Spacetime isn't supposed to be a surface, it is solid, so how do gravitational waves propagate through it like transverse waves on the surface of ...
- 135
2
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6
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290
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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 ...
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8
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3
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1k
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Gravitational waves on rigid bodies
I have a question on gravitational wave (GW) detection.
I would assume that gravitational waves do not impact rigid bodies. I mean, GWs should be extremely weak with respect to electromagnetic forces ...
- 183
4
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5
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558
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What is actually waving in a gravitational wave if spacetime is not a thing (just a mathematical construct)?
I have read this question:
except what is waving is spacetime itself.
Gravitational Wave - What is waving?
Is gravitational wave a new category of wave?
Yet none of the answers are satisfactory, ...
- 29k
2
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3
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167
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Is there an exact constant value for the speed of light in a vacuum distorted by a gravitational wave?
In a vacuum, construct a cylinder of photons arranged as follows:
A 'measuring apparatus' computes the speed of light as 299,792,458 m/s.
However, suppose the vacuum is distorted by a gravitational ...
- 173
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1
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103
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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
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492
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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
1
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2
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110
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Does a Photon take longer to reach me when travelling in the "trough" of a gravitational Wave?
I'm struggling for a while with this question and I'm not knowledgeable enough in SRT/GRT, so I'll ask here:
Suppose some big cosmic event like a Black Hole Merger that generates significant ...
- 51
5
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3
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217
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Does the oscillating electric and magnetic field of a photon generate gravitational waves?
From my understanding, little as it may be, because photons have energy they warp spacetime. The energy is expressed as an oscillating electric and magnetic field. Would this mean that the energy is ...
- 131
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3
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207
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Does matter follow the curvature of space-time?
How is matter affected by the warping of space-time? Does it expand and contract, follow the curvature of space? What happens the shape/volume/density of matter when it enters a gravity well, or ...
- 55
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1
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103
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In what way does general relativity predict gravitational waves? [duplicate]
When people say that general relativity predicts gravitational waves, how so?
user250721
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0
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37
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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
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1
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94
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Mathematical relations of Gravitational waves and the Metric Tensor $T$
Ok so as we all know that Spacetime Curvature has Geometric Disturbances which are mathematically called Gravitational Waves. But the question I am asking is that why the Coordinative value of the ...
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