What Will It Mean If LIGO Detects Gravitational Waves?
theguardian.com
What Will It Mean If LIGO Detects Gravitational Waves?
1–10 of 40 posts
Re: What Will It Mean If LIGO Detects Gravitational Waves?
#2Great explanation of what it might mean:
http://www.forbes.com/sites/startswithabang/2016/02/09/what-...
Also, how effing cool is it that we are able to detect changes in spacetime itself!
Re: What Will It Mean If LIGO Detects Gravitational Waves?
#3Great explanation of what it might mean: http://www.forbes.com/sites/startswithabang/2016/02/09/what-... Also, how effing cool is it that we are able to detect changes in spacetime itself!
An announcement of an announcement is always off-topic here, so we changed the URL from http://www.ligo.org/news/media-advisory.php to that article, which is much more substantive. Thanks!
The announcement itself, of course, will be on topic when it happens, but we can be patient.
Re: What Will It Mean If LIGO Detects Gravitational Waves?
#4Great explanation of what it might mean: http://www.forbes.com/sites/startswithabang/2016/02/09/what-... Also, how effing cool is it that we are able to detect changes in spacetime itself!
We've been “detecting space-time distortions” by means of falling for quite some time.
Re: What Will It Mean If LIGO Detects Gravitational Waves?
#5And conversely what would it mean if we never detect gravity waves? Are there any reasonable theories that posit that gravity waves don't exist?
Re: What Will It Mean If LIGO Detects Gravitational Waves?
#6And conversely what would it mean if we never detect gravity waves? Are there any reasonable theories that posit that gravity waves don't exist?
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Re: What Will It Mean If LIGO Detects Gravitational Waves?
#7I'm curious as to why ligo is the only project ever mentioned, particularly given that they have to work with virgo and geo600 to be able to triangulate their observations - a two axis interferometer only gives you partial information.
Better PR team?
Re: What Will It Mean If LIGO Detects Gravitational Waves?
#8Great explanation of what it might mean: http://www.forbes.com/sites/startswithabang/2016/02/09/what-... Also, how effing cool is it that we are able to detect changes in spacetime itself!
> Sure, it travels through space at the speed of light, but it itself is a ripple in the fabric of space
I don't believe that's been proven yet. I was under the impression that this was an experiment to provide evidence of the speed of gravity propagation.
Re: What Will It Mean If LIGO Detects Gravitational Waves?
#9I'm curious as to why ligo is the only project ever mentioned, particularly given that they have to work with virgo and geo600 to be able to triangulate their observations - a two axis interferometer only gives you partial information. Better PR team?
In Italy there's a lot of buzz around Virgo (located near Pisa), but I had the impression that it's mostly national talk, too.
Re: What Will It Mean If LIGO Detects Gravitational Waves?
#10And conversely what would it mean if we never detect gravity waves? Are there any reasonable theories that posit that gravity waves don't exist?
That general relativity is either incomplete or wrong. It would mean that gravity either propagates far more rapidly or far more slowly than we think.
Given however that c is considered and so far demonstrably the maximum velocity of information propagation in this spacetime, instantaneous propagation seems unlikely, particularly given the Mercury orbital confirmation.
That all said, we may be looking at things naively.