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Posted on 11/29/2018 11:07:34 AM PST by ETL
Gravity is big and weird and difficult to study. It moves through space as a wave, sort of like how light does. But these waves are subtle and difficult to detect. They occur in measurable amounts only after massive events, like the collision of black holes. Humanity didn't spot its first gravitational wave until 2015. Then, in 2017, astronomers for the first time detected both gravitational waves and light from a single event: a neutron star collision.
Now, researchers are using data from that event to confirm some basic facts about the universe.
In a paper first uploaded Nov. 1 to the preprint server arXiv (which Live Science first saw reported on ScienceAlert), researchers announced that they found no evidence of "gravitational leakage." Scientists had thought it was possible for gravity to penetrate high dimensions (those beyond the four that humans experience — up/down, side to side, forward/backward, time) even though light does not. If that happened, the force of gravity would lose more of its energy than light does while passing through space. But comparing the light and gravitational waves from that neutron star collision showed that this wasn't happening.
All our dimension's gravity appears to be staying right where it belongs, as Albert Einstein predicted in his theory of general relativity. ..."
Overall, researchers found, Einstein's theories of gravity remain basically intact. Someday, that might change. But it hasn't yet, even after two neutron stars slammed into each other.
(Excerpt) Read more at livescience.com ...
The fewer the better.
The scientific establishment is so hopelessly devoted to the Theory of Gravity that they now believe the universe has 20x the amount of observable matter, for the sole and exclusive reason that that is what is required to make the theory match other observations.
It’s beyond absurd - it’s religious fanaticism. The tolerance of mathematical nonsense about nonexistent dimensions is proof of how far they are willing to go to preserve the shine on the Einstein idol.
> Some people here seem to treat all sciences as though they were “Gore-Bull Warming” nonsense.
Others seem to inexplicably assume scientific institutions are not corrupt and politically-motivated even though they demonstrably are.
The claim of “gravity waves” being discovered is as unscientific as they come. One experiment, one set of equipment, no verification, and just for good measure the ability to conduct a fraud was openly built into the equipment.
Scientific progress is not at all helped by a lack of skepticism.
first off, “dark matter”(while not fully understood) is measurable (by the rotation of visible matter in galaxies)...
either “dark matter” exists or something totally unknown is causing an effect just like what “dark matter” would cause
so it all seems to boil down to whether Einstein’s equation is correct as written (dark matter exists), or whether it may need an added term (as Einstein himself thought, albeit for a somewhat different reason).
Einstein would have no difficulty with either result.
Right now, most scientists seem to strongly favor the “dark matter” since they can measure a large impact...that “dark matter” so easily explains.........but there’s still room for further discoveries in this arena...
the theories involving extra dimensions mostly arise out of some types of quantum physics (string theories, etc.)....
so far nobody’s detected the extra dimensions, however....
there is a theory that the force of gravity is (believe it or not, relative to the other physical forces) weak.. due to some of its OOmph escaping into another dimension. However, this has not been established, just like the extra dimensions for string theories have not been established.
Certainly extra dimensions COULD exist, but I do not think many scientists take them as an article of faith. What they do is make some equations work better... but this is very indirect evidence that they actually exist
....and (I have not taken a survey but) most scientists would agree that they are THEORETICAL possibilities, not FACTS at this point.
Best,
I have a non-standard view of science: I consider reality and any model separate things.
I therefore refer to greater or lesser accuracy, not truth or falsity, of a model.
Einstein’s model has a high degree of accuracy, and therefore of usefulness.
It only proves the energy radiating in our direction stayed in the boundaries. Any radiation outside that boundary could very well have continued to travel independently of our dimensions. Who is to say the actual mass was in fact larger but not detectably by those of us bound by the three dimensions?
indeed Einstein’s model has proven remarkably accurate and useful
i think its amazing given how little was known about the universe then
They’re not measuring anything... they are literally saying this is where matter would have to be for the theory of gravity to be correct as-is, manufacturing it as “dark matter” to make the equations work in defiance of observations. It’s totally circular reasoning. In a sense, “dark matter” is a measurement of how much the theory of gravity is wrong, which on large scales appears to be as much as 97%.
Thanks ETL. Kaboom, Kaboom, ya-da-da-da-da-da-da-da-da-da-da-da...
Now that is funny!
That's actually not true. The person who finds a crack in it will get a Nobel Prize.
It is true, and denying it doesn’t make it less true.
It is so true that the scientific establishment has resorted to the absurdity of “dark matter” in order to hold onto a cherished, but failed, theory.
You saying its true doesnt make it so. Have you worked in academic circles or known any academic types?
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