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Re:Physicists Detect Gravitational Waves, Proving Einstein R... by contravariant on Thursday February 11, 2016 @04:21PM (#11083360)
>(1) We should see this as some inconsistency in how gravity scales with the mass of a black hole. The larger ones would have proportionately greater 'drag' on leaving gravitrons.

Perhaps, no clue how a quantum mechanical gravity would interact with a black hole.

>(2) If they are massive, and therefore subject to slowing, shouldn't gravity waves leaving a black hole be subject to some sort of doppler effect? Should we be looking for red/blueshifts in these waves?

The Doppler effect happens even for light, which isn't massive at all (that we know of).

>(3) If gravitrons have mass and are subject to gravity, what brings that gravity? What sub-gravitron particle regulates gravity going in/to/out of the gravitron?

There's no reason they couldn't interact with themselves, in fact I guess that's probably the most likely case.

Re:Physicists Detect Gravitational Waves, Proving Einstein R... by sandworm101 on Thursday February 11, 2016 @04:35PM (#11083455)
If they interact with each other, then wouldn't any "wave" collapse?

The particles leave the event in a smooth wave. Then they run into other waves, or each other, or just the background gravity fields. This perturbation should cause them to clump together. So in short order the smooth wave would become large blobs of gravitrons more akin to raindrops than waves. And without anything holding them apart, might not some of these clumps condense into some sort of ... I don't have the words for such an object. I wouldn't want to get in its way.

Re:Physicists Detect Gravitational Waves, Proving Einstein R... by contravariant on Thursday February 11, 2016 @06:38PM (#11084224)
I think what you're trying to describe is something like 'confinement'. I'm not confident that a massive graviton will necessarily lead to confinement, neither gravitons nor confinement are that well understood.
Re:Physicists Detect Gravitational Waves, Proving Einstein R... by Manishearth on Thursday February 11, 2016 @07:25PM (#11084488)
It's a converging series; instead of getting a clumping you may get a slight mass increase. These new gravitons that modulate gravity between existing gravitons are not 100% there, so they do not contribute that much.