All Questions
Tagged with frame-dragging spacetime
19
questions
2
votes
2
answers
109
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How do we account for the 'one way' drag of moving space?
As I understand it, the rotating space outside a Kerr black hole drags radially falling particles into circular motion. Similarly the river model posits that the inward flow of space ensures particles ...
- 6,102
-1
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1
answer
67
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What's the difference between these two frame-dragging equation?
Conceptually, what is the difference between these two frame-dragging equations, describing the rate of angular velocity of the space around a symmetrically spherical mass such as a black hole and why ...
- 287
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1
answer
35
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Will the trajectory of a body moving straight towards a rotating BH differ if space just rotates around or if space spiralls into the BH?
Will the trajectory of a body moving straight towards a rotating BH differ if space just rotates around or if space spiralls into the BH? Can this difference be clearly measured? Also as a very dense ...
- 2,255
2
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3
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527
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Would our orbit really remain the same if the sun were a black hole of equal mass?
There seems to be an idea floating around that the sun could be replaced by anything of equal mass with no consequence to our orbit.
It seems to me that if the mass of the sun were confined to a ...
- 47
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2
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47
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What distant observer would see if spaceship remains insitu just outside event horizon?
Imagine 2 spaceships found themselves just outside the event horizon of a blackhole, spaceship A tries to remain in place relative to the black hole while B accelerates around the blackhole. To a ...
- 13k
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1
answer
59
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Does light travel same distance in same time not depending of the path orientation regarding Earth's surface?
Does light travel the same distance at the same time regardless of the path orientation? The light in the proximity of a gravitational source can bend its trajectory and frame-dragging can cause the ...
- 2,255
10
votes
4
answers
999
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Does the twist of spacetime by a black hole increase over time?
From the Wikipedia page about Ergospheres:
As a black hole rotates, it twists spacetime in the direction of the rotation...
Does this "twisting up spacetime" add up over time in any ...
- 163
0
votes
1
answer
79
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Can the curvature of space-time be also described as a 'frame' (space) whirlpool?
Can the curvature of space-time be also described as a 'frame' (space) wirlpool?
When we talk about the Schwarzschild metric it can be immagined as a curved manifold but in the Kerr metric it seams ...
- 1,815
0
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0
answers
27
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The Sun bends planets' trajectory and speeds up it towards the perihelion; does it both actions with light? [duplicate]
The Sun bends planet's trajectory and speeds up it towards the perihelion; does it both actions with light? If it speeds up light too, then does it mean that gravity is a consequence of a vortex that ...
- 1,815
7
votes
1
answer
395
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Is there linear 'frame dragging'?
Very massive objects cause the so called 'frame dragging' that can increase the speed of a beam of light to a total aggregate speed faster than the speed of light in normal circumstances so my ...
- 1,815
1
vote
2
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108
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While 'frame dragging' is the 'frame' just orbiting or is it even spiralling into the source of gravity?
While 'frame dragging' is the 'frame' just orbiting or is it even spiralling into the source of gravity causing anti-dark-energy effect?
- 1,815
2
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0
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35
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Does the gravitomagnetic model for frame dragging imply that objects be "sped up" to rotating speed based on their inertia?
As a specific example, consider a needle on a torsionless thread lowered from deep space over a rotating planet's pole. The needle will spin at a specified rate (based on elevation, planet inertia ...
- 480
8
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3
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1k
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We know there is no aether, so what is being dragged in frame dragging?
I have read this question:
In stellar frame dragging what is the 'frame'?
There are several questions on this site about frame dragging, all of them take the frame that is being dragged as an ...
- 29k
1
vote
1
answer
89
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In stellar frame dragging what is the 'frame'?
If a star rotation causes a frame rotation then there is an interaction between the two. Is it possible for the star to briefly expel this same frame away from its center when the star becomes a ...
- 467
0
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1
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49
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Does mass have a larger frame dragging effect than energy?
A rotating mass will twist spacetime and cause orbiting bodies to precess. My question is whether the mass of the rotating body itself plays a bigger role in the dragging effect than energy and how ...
