Comments on: The Case Of The Missing Gravitational Waves https://briankoberlein.com/2015/09/27/the-case-of-the-missing-gravitational-waves/ Brian Koberlein Tue, 19 Feb 2019 13:26:59 +0000 hourly 1 https://wordpress.org/?v=5.0.3 By: David Chester https://briankoberlein.com/2015/09/27/the-case-of-the-missing-gravitational-waves/#comment-4921 Fri, 13 Jan 2017 00:08:13 +0000 https://briankoberlein.com/?p=5292#comment-4921 Hi Boul, the space at a localized will return back to equilibrium, but the wave is propagating at the speed of light. The wave contains energy, so it must keep travelling in a straight line, assuming that it is in a vacuum. The mathematics of gravitational wave propagation is actually very similar to light. You can have plane wave solutions.

To jOh, Newton’s inverse square law is a correct approximation, yet his theory has no waves, as information travels instantaneously. Information takes time to travel in Einstein’s relativity, which could be encoded in a gravitational wave.

It is funny that this post was made after LIGO’s discovery, yet before the news was released to the public.

]]> By: Boul Oumag https://briankoberlein.com/2015/09/27/the-case-of-the-missing-gravitational-waves/#comment-3119 Thu, 01 Oct 2015 12:45:26 +0000 https://briankoberlein.com/?p=5292#comment-3119 I am not sure I understand correctly what a gravitational wave is exactly. My understanding is that after a perturbation, the space will return to a stable equilibrium in term of it’s geometry. But, what is the restoring force that cause space returning to its equilibrium ?

Example, for sound waves propagating in air, the restoring force is air pressure. It is not clear for me what happens to a flat space when it is disturbed.

]]> By: j0h https://briankoberlein.com/2015/09/27/the-case-of-the-missing-gravitational-waves/#comment-3112 Mon, 28 Sep 2015 21:05:28 +0000 https://briankoberlein.com/?p=5292#comment-3112 My guess: Newtons Inverse-square law should be a good enough estimation in this case.

]]> By: Ori Vandewalle https://briankoberlein.com/2015/09/27/the-case-of-the-missing-gravitational-waves/#comment-3108 Sun, 27 Sep 2015 19:28:04 +0000 https://briankoberlein.com/?p=5292#comment-3108 If gravitational waves aren’t as strong as we thought they were, is that because general relativity is wrong or because our picture of the kinds of objects that produce gravitational waves is wrong? (Or does it mean something else entirely?)

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