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Physicists Wonder: Why Has No One Been Killed by Dark Matter?
Gizmodo ^ | July 17, 2019 | Ryan F. Mandelbaum

Posted on 07/18/2019 6:09:07 AM PDT by C19fan

The fact that no one has died from being struck by dark matter is enough proof to rule out certain ideas about the mysterious stuff, according to one new theory paper.

There’s a conundrum facing physicists: Most of the universe’s mass appears to be missing, based on observations of the universe’s structure, how galaxies move, and how they seem to warp distant light. Thousands of physicists are now hunting for what might be producing these effects. But the mere fact that we’re alive here on Earth can offer some insight as to what dark matter isn’t, and the researchers behind the new paper say the human body itself can serve as a dark matter detector.

(Excerpt) Read more at gizmodo.com ...


TOPICS: Astronomy; Science
KEYWORDS: astronomy; gravity; physics; science; stringtheory
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To: D Rider

Funny.. spell checked. Apparently gravitational means hrs irrational. Who knew?


61 posted on 07/18/2019 7:43:58 AM PDT by D Rider
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To: Lou L
New excuse for missing school assignments-
"Sorry, teacher...dark matter ate my homework."

Nah, dark matter is composed of all those missing left socks. . .

62 posted on 07/18/2019 7:53:51 AM PDT by Swordmaker (My pistol self-identifies as an iPad, so you must accept it in gun-free zones, you hoplaphobe bigot!)
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To: C19fan

Lol. There is no dark matter. There are only false theories.


63 posted on 07/18/2019 7:57:49 AM PDT by Seruzawa (TANSTAAFL!)
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To: Red Badger
There is no dark matter.


64 posted on 07/18/2019 8:07:34 AM PDT by CtBigPat (Qanon - Please be real...)
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To: C19fan

Dark Matter kills you and removes the memory of you from everyone else.


65 posted on 07/18/2019 8:08:55 AM PDT by DungeonMaster (Prov 24: Do not fret because of evildoers. Do not associate with those given to change.)
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To: thoughtomator
Never underestimate unicorns.


66 posted on 07/18/2019 8:12:09 AM PDT by CtBigPat (Qanon - Please be real...)
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To: I want the USA back
One physicist is working on a theory that what others are calling "dark matter" is really just the side-effect of the quantization of inertia. He has shown that if you quantize the inertia in Einstein's equations you get the same (or at least similar) effects of suspecting there is some invisible dark matter.

However, astronomers have recently discovered galaxies which appear to have no dark matter. If the quantized inertia theory were correct, then it should be seen in all galaxies.

All in all very interesting stuff.

67 posted on 07/18/2019 8:26:09 AM PDT by who_would_fardels_bear
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To: C19fan
24d1ed9d8fb0d51aa96a7a91ebf4707c
68 posted on 07/18/2019 8:37:54 AM PDT by Quickgun (I got here kicking,screaming and covered in someone else's blood. I can go out that way if I have to)
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To: Quickgun

LMAO.


69 posted on 07/18/2019 8:38:24 AM PDT by TADSLOS (You know why you can enjoy a day at the Zoo? Because walls work.)
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To: null and void

“Prove, or at least give me a plausibility argument that, say, old age isn’t caused by dark mater induced degradation.”

Well, there are a few animals (and plants/fungus) on the planet that don’t seem to die of old age. What is protecting them from the dark matter?


70 posted on 07/18/2019 8:41:24 AM PDT by Boogieman
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To: EEGator

You guys on FR crack me up! Your grasp of dark humor is genius....ROFL! and the other guy/gal.. Klatu.. Barada.. Darkto ~(;?)]=(:::::?)=====?¿


71 posted on 07/18/2019 8:45:33 AM PDT by Rainwave (" Work out your OWN salvation with fear and trembling")
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To: Boogieman

The Klan?


72 posted on 07/18/2019 8:49:19 AM PDT by null and void (The Democratic Party is back to loving workers but hating employers. A winning formula IÂ’m sure.)
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To: Swordmaker; 6SJ7; AdmSmith; AFPhys; Arkinsaw; allmost; aristotleman; autumnraine; bajabaja; ...
Thanks Swordmaker. Dark Matter Matters.

· String Theory Ping List ·
Marlon Brando Hey Stella A Streetcar Named Desire YouTube
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· View or Post in 'blog · post a topic · subscribe ·


73 posted on 07/18/2019 8:51:29 AM PDT by SunkenCiv (Imagine an imaginary menagerie manager imagining managing an imaginary menagerie.)
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To: EEGator

“Maybe it isn’t real, and it’s something made up to fit preexisting equations?”

I tend to agree. But I can also see how physicists might be inclined to leave no stones unturned before throwing under the bus a set of equations that have been working rather well.

Another possibility might be this. According to Einstein gravity is just the result of warped space, and matter is one thing that warps space, but maybe it isn’t the only thing that does the warping, or maybe space may be “naturally warped” causing what we observe.


74 posted on 07/18/2019 9:05:17 AM PDT by aquila48
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To: ClearCase_guy

Dark Matter Lives!


75 posted on 07/18/2019 9:06:48 AM PDT by aquila48
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To: cuban leaf

“And they make fun of us for “making up” God. ;)”

Badabing! And there’s even more stuff at the other end of the spectrum, quantum mechanics, that stretches imagination and faith to the breaking point.


76 posted on 07/18/2019 9:11:07 AM PDT by aquila48
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To: SJSAMPLE
👍👍
77 posted on 07/18/2019 9:12:56 AM PDT by aquila48
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To: Moonman62

“Some of the comments about Dark Matter on this thread make Conservatives look stupid.”

You seriously need an injection of a sense of humor.


78 posted on 07/18/2019 9:20:28 AM PDT by aquila48
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To: who_would_fardels_bear
This is just BS extracted from the mind of nully, but, suppose there really is aether?

The only "proof" we have that there isn't is the Michelson–Morley experiment, an experiment that has only been done on the surface of the Earth. Suppose the aether swirls like the eddies around an oar or water flowing down a drain?

Stuff accumulates in these eddies/vortexes, every planet, every star and every galactic feature is defined by these eddies. If you look at an eddies in the 2 dimensional water model you can see striations on the walls, these correspond to the 3 dimensional arms in galaxies.

Back to Michelson–Morley experiment, done on the surface of the Earth only. The mass accumulation and the rotational velocity mirror the rotation of the aether vortex. The revolution of the Earth around the Sun tracks the swirl of the aether spinning around the Sun. After billions of years the interaction of aether and matter more or less reach an equilibrium. Surface velocity on a massive object is more or less zero, exactly as Michelson and Morley found. In effect, the were attempting to measure the velocity of the wind from a balloon floating freely in and with the breeze.

Why do some galaxies show anomalous rotation? The centers of most galaxies have a black hole where space-time spirals in. Does the fabric of space-time have a yield strength?

If so, as the black hole continues to gain mass, the very fabric of space-time stretches as the gravity well gets deeper and deeper. If at any point the strain exceeds the yield stress of space-time the funnel tears in two at that depth. Everything below that tear falls off into a separate universe.

Everything above? It rebounds. More space pours out of the old event horizon, as the mass that was holding it in place has budded off and as far as this universe can tell, simply ceased to exist. All the matter on the sidewalls above the new event horizon barfs out along with the space and forms the central bar seen on so many galaxies. For a time the bottom of the gravity well looks flat, and this flat gravitational gradient allows the matter to rotate around the core at the same rate rather than faster towards the center (which no longer has a steeper slope) than the edge.

You see a similar effect if you abruptly close a drain valve.

However, astronomers have recently discovered galaxies which appear to have no dark matter.

Their center black hole simply hasn't developed a steep enough stress gradient to bud off. Yet.

79 posted on 07/18/2019 9:22:35 AM PDT by null and void (The Democratic Party is back to loving workers but hating employers. A winning formula IÂ’m sure.)
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To: C19fan

Occam, please pick up the nearest emergency phone.
Occam, please pick up the nearest emergency phone.
Occam, please pick up the nearest emergency phone.
...
Occam, please bring your razor to emergency immediately.
Occam, please bring your razor to emergency immediately.
Occam, please bring your razor to emergency immediately.


80 posted on 07/18/2019 9:26:15 AM PDT by InterceptPoint (Ted, you finally endorsed. A)
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