Posted on 07/21/2016 10:47:42 AM PDT by Phlap
I prefer epicycles.
I’m probably being completely dense, but an absence of light makes dark...isn’t that all that dark matter is??? Nothing tangible, just an absence of light? No ‘matter’ to it?
Open Universe?
Forever expanding, meaning time without end?
There are theories that work without resorting to “dark matter” pixie dust, but the physicists and cosmologists just prefer their existing theories, because they still hold out hope they can prop them up if they find the “dark matter”.
...
Maybe all those physicists and cosmologists simply aren’t as smart and knowledgeable on the subject as you are.
I am in no way a physicist or well versed in the sciences.
My father passed a year ago and just today in his huge stack of papers, I came across a paper copy of an article published in 1979 that can now be accessed on-line (”Time without end: Physics and biology in an open universe,” http://scilib-physics.narod.ru/Dyson/dyson.pdf, https://en.wikipedia.org/wiki/Dyson%27s_eternal_intelligence).
My father was a brilliant man, always reading, studying and learning up to the moment he passed. I’ve been studying the Dyson article when this thread came up.
Talk about timing.
Anyway, too many equations and some very deep philosophical discussions for me to closely follow, though I do experience a glimmer of understanding time-to-time.
I think this is interesting. Perhaps you might as well.
What else?
Post 45. . .article discusses thoughts on galaxies and planets wandering off.
No.
“Dark” is a term coined by scientist to basically say “We have no clue”.
Unknown = Dark
The issue is that they seem to believe it MUST exist because they claim they can see its effects.
And it helps make their calculations work.
“Dark” means “we can’t find it.” It might really be dark, or it might be a problem with relativity, or something outside of both relativity and the Standard Model. At least now some of the leading theories have shown to be lacking.
I see, thanks.
No, I don’t think so. If you look at the history of science, much of it is filled with very intelligent men holding on to flawed theories that should have been abandoned, in the name of scientific orthodoxy.
I would suggest electromagnetism. At the time it was ruled out as a significant factor in the motion of heavenly bodies, we still believed that space was a vacuum, and vacuums cannot conduct electromagnetic forces. We now know that space is mostly filled with very thin, ionized gas, also known as plasma, and plasma is a very good conductor of electromagnetic forces.
Not a troll here - looking to understand this better.
So, lets assume we have the galactic center, a star 1 a distance of x from the center and star 2 x+y from the center and in a galactic arm. Lets also assume we take a ray that forms a right angle from a tangent plane from the galactic center that transects S1 and S2, like a spoke in a wagon wheel. As S1 and S2 are observed to rotate around the galactic center, do they stay "within the spoke"? And relativistic models predict that S2 would lag behind the tangent ray that transects S1?
interesting. I am not a cosmolgist at all, but certainly we know that super massive black holes at the galactic centers have bipolar astrophysical jets, which implies axial rotation. It makes sense to me that this may generate a powerful electomagnetic field perpendicular to the axis of rotation.
a tangent plane from the galactic center (represented as a sphere - the shape of the super massive black hole)
So what type of dark matter particle was this particular experiment trying to detect?
I have an honest question.
Can or is the Speed of Light slowed down while traveling through different medium?
I had some in my closet but when I opened the door it all leaked out.
Well, they don’t really know what kind of particles this theoretical “dark matter” would be, since they have never been able to detect or observe any of it. They have some guesses, but that is all they are at this point.
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