Detecting Gravity Waves
28 Feb 2015 2:35:09 UTC
Topic 197996
(moderation:
Pardon my ignorance (my knowledge of General Relativity redefines the infinitesimal)...
What are the chances that gravitational waves (ripples in the curvature of space-time) include compensating ripples in the flow of time that make them undetectable a priori?
Suppose as a GW flies past LIGO, as the affected arm contracts (there is acceleration), the flow of time local to that arm slows down (relative to the detector) just enough and bingo! no interference patterns are detected when the lasers are recombined.
Or is LIGO saved by an r.m.s. effect in that when the arm stretches (in the other half of the GW) instead of contracting, its acceleration means time will also slow down, thus an interference pattern will be detected.
I need to figure this out soon because https://www.youtube.com/watch?v=KWAJSSvnpHo#t=138
Cheers,
- jahman.
Detecting Gravity Waves
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Anyone?
RE: Pardon my ignorance (my
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erm... when it comes to General Relativity... your concept of what constitutes infinitesimal knowledge may need redefining, Jahman :) Y-e-e-e-s. Non-existant doesn't really go far enough to define my own knowledge... Beyond that, I can't help, sorry but I do hope someone else can... because you've got me wondering about it now too :)
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Found the answer! See:
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Found the answer!
See: http://einstein.phys.uwm.edu/einsteinathome/ask/archive/relativity-qa5.html
Ah yes, the old frames of
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Ah yes, the old frames of reference ploy again. Always useful in these sorts of situations.
Waiting for Godot & salvation :-)
Why do doctors have to practice?
You'd think they'd have got it right by now