Posted on 07/21/2016 10:47:42 AM PDT by Phlap
So it's a 'plug-in' for the equations cosmologists use in order to make the math work. As I suspected when they first told us that it is invisible but they couldn't prove its existence...yet it exists.
In a nutshell, if you have to make sh!t up to get your equations to work, then your equations need some work.
You’re exactly right. In 1993, calculations given at a large symposium showed that there wasn’t enough matter in the universe to cause it to ever contract again. Within 2 years, dark matter had been invented to enable a future contraction. A great sigh of relief was heard at that news.
A future contraction, "the big crunch", is not predicted by current models - even with dark matter.
“You do not know the power of the dark side.” — Vader
Dark matter==Human-caused global warming??
Whatever their plan was, it involved a VERY expensive portion of Xenon.
Without having to invoke electromagnetism, that is.
Or completely made up
Dark matter lives.
As early as the 1930’s Zwicky noted that stars alone could not account for the gravitational cohesion of galaxies. Stars rotate about the center of their galaxies too quickly and would fly off into space if the only thing holding them together was the mutual gravitational attraction of the stars. It was hoped that the discovery of black holes would explain the galactic dynamics. The problem is that the rotational rate of galaxies is independent of distance from the core. Pluto takes 248 years to circle the sun, Mercury 88 days. With stars, it’s as if Mercury and Pluto circled the sun at the same rate.
The solution called for matter to be embedded throughout the galaxy to cause gravitational attraction to increase with distance from the core. (Mass goes as distance cubed, surface gravity as distance for a uniformly filled sphere.)
There is evidence that dim stars and planets drifting in interstellar space cannot begin to make up the missing mass. Either the laws of gravity as currently understood are wrong, or there is something out there.
It is *not* the physicists and PhDs who are being narrow minded, or protecting turf, they would love to win the Nobel prize for unraveling this puzzle. It is altogether possible that there exist particles which do not interact with the electro-weak force or the strong force but do interact gravitationally. If so, the only evidence we may ever have of their existence is their effect on galactic an intergalatic dynamics.
I believe he mixed up dark matter with dark energy. Dark energy is what they posit to explain the accelerated expansion of the universe that doesn’t conform to predictions, dark matter is what they use to explain the aberrant rotation of galaxies that doesn’t match their predictions.
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Excellent point.
A keeper.
Ha! More expensive Sea-Monkeys.
Kinda like globull warming. . .
LOL,
Great Idea.
Through in some Alien Abduction Insurance and you’ll be sold out in no time.
It’s only money..................
Yes, to explain it in a bit more detail, the problem is this:
We have, with general relativity, pretty good equations for how gravity works. Scientists assume that gravity is the only force that needs to be accounted for in the motion of the galaxies, since the nuclear forces have negligible effect at stellar distances and electromagnetic forces shouldn’t have much effect either (if space is mostly a vacuum).
So, applying the gravitational equations to predict how a galaxy should rotate should be simple enough, at least to make a rough model. However, when we do this, the models predict that the arms of the galaxy should rotate slower than the center of the galaxy (since gravitational forces weaken as the distance between masses increases). When we look at real galaxies, though, we see the arms rotate at the same speed as the center of the galaxy.
To account for this discrepancy, they invented the concept of “dark matter”. Basically, if they add enough mass in the right places to their models, they can force the model to match the observations. However, this is a completely arbitrary forcing of the equations. It’s too ludicrous to believe that in every galaxy there really is invisible matter allocated in just the right places to make the equations work. The probabilities against such a thing would be astronomical.
On the other hand, if we consider the idea that the motion of galaxies is not determined only by gravity, then there are much cleaner solutions available. Scientists just don’t seem to be willing to abandon the gravity-only models yet, so they continue to putz around with dark matter.
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