19 Feb '18 14:26>
none have been detected because there aren't any.
Originally posted by @ogbyou cannot yet know that they don't exist. Too early to tell. They are implied by some albeit not necessarily all interpretations of quantum physics so the graviton hypothesis isn't an unreasonable hypothesis; just one that we have yet to find a practical way to test.
none have been detected because there aren't any.
Originally posted by @ogbWhy are you so sure there are no gravitons? Are you an experimental physicist and have data from your experiments?
none have been detected because there aren't any.
Originally posted by @ogbMy guess is that you are right.
none have been detected because there aren't any.
Originally posted by @metal-brainWhy "no need"?
If space/time is discrete there might be no need for the graviton to explain gravity.
My theory is that gravity is caused by the displacement of space/time by matter.
Originally posted by @humyHow can we rely on "the experts" when it's apparent even they can't agree on what causes gravity?
Why "no need"?
And it is NOT true that the theory of graviton is there to, as you said, "explain gravity", but rather to unite quantum theory with the theory of gravity.
We already have general relativity to "explain gravity" so that is NOT the problem and thus NOT the reason for graviton theory.
The problem is how to unify quantum theory with relativity; g ...[text shortened]... e the delusional arrogance to assume I know better than the experts and you certainly shouldn't.
Originally posted by @lemon-limeNo no that isn't what I am saying to him at all.
[b]How can we rely on "the experts" when it's apparent even they can't agree on what causes gravity?
Originally posted by @humyI don't believe he thinks he knows better than the experts. If anything, I assume he has a pet theory that makes sense to him based on what he does know. I have my own pet theory as well... which just happens to agree with Einstein's belief that gravity is not a force, but rather is a property of spacetime.
No no that isn't what I am saying to him at all.
I am not saying we all should "rely" on the experts if they disagree (like they so often actually do).
I am saying he shouldn't have have the delusional arrogance to assume he knows better than the experts when he obviously understands much less than them.
I don't assume I know better than them about graviton ...[text shortened]... ls so why should he assume he knows better than them when he clearly has NO physics credentials?
Originally posted by @lemon-limeSpacetime warps due to mass is different from gravitational waves which we suppose has a graviton as the carrier, but like DT says, it lies at 420 DB lower than EM fields. Good luck detecting that. For instance, in audio recording, we are up to I think 32 bit recording, which is way overkill except for overhead, and at about 6 db per bit, that clocks in at 192 DB signal to noise ratio, with the caveat that nothing made by man can actually reach that level of noise so 420 DB would require 70 bit recording of whatever signal is being recorded, and good luck with that. Maybe by the 30th century......That is plucking at the Planck size, and we are not even CLOSE to that level of detection yet so any such detection would be totally indirect, like maybe long term effects of stars in orbit around black holes or some such. But like I said, not in century 21, or 22, or 23......
I don't believe he thinks he knows better than the experts. If anything, I assume he has a pet theory that makes sense to him based on what he does know. I have my own pet theory as well... which just happens to agree with Einstein's belief that gravity is not a force, but rather is a property of spacetime.
In any event, I've been looking for an excuse for some time now to post that particular youtube video... 😀
Originally posted by @deepthoughtIf gravitons exist wouldn't that mean spacetime is discrete instead of continuous? Please explain.
Given that we can only just detect gravitational waves it's hardly a surprise that gravitons haven't been detected. The coupling strength of gravity in dimensionless units is roughly 42 orders of magnitude less than the coupling strength of the electromagnetic field. This means that it is far beyond our technological capability to detect a single grav ...[text shortened]... ous, in the sense that it consists of a superposition of continuous manifolds, but I'm guessing.
Originally posted by @ogbLike gods you mean?
none have been detected because there aren't any.
Originally posted by @lemon-limeYeah ... those idiots can't even do that!
How can we rely on "the experts" when it's apparent even they can't agree on what causes gravity?
Originally posted by @ogbI suppose you would have said that about atoms?
none have been detected because there aren't any.
Originally posted by @metal-brainIn the same that the existence of white holes would prove the universe is cyclic.
If gravitons exist wouldn't that mean spacetime is discrete instead of continuous? Please explain.