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Gravitational waves will settle cosmic conundrum
Phys.org ^ | February 14, 2019 | Simons Foundation

Posted on 02/17/2019 8:54:27 AM PST by ETL

click here to read article


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FWIW, gravitational waves are detected via an effect of Einstein's Relativity. Namely, the "shortening" of an arm of the detector. Unbelievably (IMO), the shortening they claim to have detected is of the same ratio as the distance to the nearest star (outside the Sun) compared to the width of a human hair! (no joke!). The distance to the nearest star is ~4.3 light years away, or about 25 TRILLION miles, vs the width of a human hair.
1 posted on 02/17/2019 8:54:27 AM PST by ETL
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To: ETL
Dark Matter.

Everything can be explained by invoking Dark Matter.

2 posted on 02/17/2019 8:57:08 AM PST by yesthatjallen
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To: yesthatjallen

Something Is Not Quite Right In the Universe, Ultraprecise New Measurement Reveals

Space.com ^ | February 9, 2019 | Mara Johnson-Groh, Live Science Contributor

Posted on 2/9/2019, 12:49:05 PM by ETL

https://www.freerepublic.com/focus/f-chat/3726592/posts


3 posted on 02/17/2019 9:03:54 AM PST by ETL (Obama-Hillary, REAL Russia collusion! Uranium-One Deal, Missile Defense, Iran Deal, Nukes: Click ETL)
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To: ETL

Thank goodness.

Everyone was getting tired of those bloody knife fights in the faculty lounge.


4 posted on 02/17/2019 9:10:16 AM PST by blueunicorn6 ("A crack shot and a good dancer")
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To: ETL

Gravity is a constant.


5 posted on 02/17/2019 9:14:54 AM PST by EnglishOnly (eWFight all out to win OR get out now. .)
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To: yesthatjallen

Zwicky was the first to propose the existence of dark matter based on the rotational velocity of galaxies. Galaxies are rotating too quickly for gravity from observable stars to hold them together. Black holes don’t work, because if the matter were concentrated at the center the outside would rotate more slowly than the inside, just as Pluto orbits the sun more slowly than Mercury. Zwicky concluded that if Newtonian mechanics explained the structure of galaxies there must be some unseen matter more or less uniformly distributed throughout the galaxy holding them together that did not show up in telescopes. Hence the term, dark matter.

The nature of dark matter is not known, no compelling evidence for any particular form exists, although neutrinos and failed stars (super Jupiters) has been ruled out.

Regardless, dark matter does not explain the discrepancy between estimates of the Hubble constant resulting from different measurement techniques.


6 posted on 02/17/2019 9:15:20 AM PST by Lonesome in Massachussets (Schumer delenda est.)
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To: ETL

“Unbelievably (IMO),”

You don’t believe?


7 posted on 02/17/2019 9:17:34 AM PST by TexasGator (Z1z)
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To: 6SJ7; AdmSmith; AFPhys; Arkinsaw; allmost; aristotleman; autumnraine; bajabaja; ...
Thanks ETL.


· List topics · post a topic · subscribe · Google ·

8 posted on 02/17/2019 9:18:17 AM PST by SunkenCiv (and btw -- https://www.gofundme.com/for-rotator-cuff-repair-surgery)
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To: ETL

Once they settle the question of the Universe’s expansion, and after dozens of learned papers are read, after readers are completely astounded and flummoxed, there will appear a slight niggle, which, after further intense study, will need some very expensive equipment to uncover the truth - wherein they will find out that gravitational waves are not what they thought they were and everything will go back to square one: namely we know less than nothing about the true nature of the Universe and are not likely to uncover that truth for some millions of years - supposing the human race lasts that long ...

How do you like that for one sentence?


9 posted on 02/17/2019 9:20:40 AM PST by PIF (They came for me and mine ... now it is your turn ...)
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To: TexasGator
They claim to have detected a shortening of the detector arm with the same ratio as 25 trillion miles vs the width of a human hair!

Related image


10 posted on 02/17/2019 9:25:00 AM PST by ETL (Obama-Hillary, REAL Russia collusion! Uranium-One Deal, Missile Defense, Iran Deal, Nukes: Click ETL)
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To: ETL

In the history of modern physics has there been a more productive instrument than the interferometer?


11 posted on 02/17/2019 9:36:46 AM PST by Moonman62 (Facts are racist.)
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To: ETL

Curious: how fast do they propagate?


12 posted on 02/17/2019 9:41:16 AM PST by dhs12345
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To: Moonman62
In the history of modern physics has there been a more productive instrument than the interferometer?

I would have to say that in my many years of lonely, obsessive, near-ceaseless research the disgronificator has played an even larger role.

13 posted on 02/17/2019 9:41:31 AM PST by Fightin Whitey
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To: ETL

So, does the force of gravity travel faster that light or not?


14 posted on 02/17/2019 9:47:28 AM PST by MHGinTN (A dispensation perspective is a powerful tool for discernment)
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To: ETL

Is that the Washington state site?

There is also one in Louisiana.

Signals found by both sites indicate that gravity waves travel at the speed of light.


15 posted on 02/17/2019 9:55:30 AM PST by TexasGator (Z1z)
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To: ETL

That is not the only mathematical “constant” in the standard model that might be a big error.

I think the next twenty years will produce an exlosion of findings that will explode the standard model. I think that model has included a greater than actual role for gravity and a lesser than actual role for other forces in the universe. One of the lesser understood and lesser admitted role is that of “charge” (as in the positive & negative electromagnetic charge) on the large scale, as applies to solar systems, star formations and the entire cosmos.


16 posted on 02/17/2019 10:00:40 AM PST by Wuli
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To: EnglishOnly

“Gravity is a constant.”?

Relative to what? Relative to an object at a point in space? Over time?


17 posted on 02/17/2019 10:49:27 AM PST by Texas Fossil ((Texas is not where you were born, but a Free State of Heart, Mind & Attitude!))
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To: ETL

The instrumentation to detect gravity waves puts Rube Goldberg to shame. Detecting neutrinos was easy in comparison.


18 posted on 02/17/2019 10:53:05 AM PST by sparklite2 (Don't mind me. I'm just a contrarian.)
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To: ETL
Gravitational waves will settle cosmic conundrum

Unless the gravitational wave method gives them... A THIRD SOLUTION for the Hubble constant!

19 posted on 02/17/2019 11:43:42 AM PST by LibWhacker
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To: SunkenCiv

Totally cool!!
Thanks for forwarding on.


20 posted on 02/17/2019 12:17:05 PM PST by Track9 (Conservatives like underdogs, progressive like victims.)
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