Posted on 07/17/2022 12:56:29 PM PDT by BenLurkin
Newton’s Theory of Gravity explains most large-scale events fairly well. ... However, the theory is not foolproof. Einstein’s theories of general and special relativity, for example, explained data that Newton’s theory couldn’t. Scientists still use Newton’s theory because it works in the overwhelming majority of cases and has much simpler equations.
Dark matter was proposed as a way to reconcile Newtonian physics with the data. But what if, instead of reconciliation, a modified theory is needed.... Mordehai Milgrom...developed a theory of gravity (called Modified Newtonian Dynamics or “Mond” for short) in 1982 that postulates gravity functions differently when it becomes very weak, such as at the edge of disk galaxies.
His theory does not simply explain the behaviors of galaxies; it predicts them. The problem with theories is that they can explain just about anything. ...One way to separate good theories from bad ones is to see which theory makes better predictions.
Recent analysis of Mond shows that it makes significantly better predictions than standard dark matter models. What that means is that, while dark matter can explain the behavior of galaxies quite well, it has little predictive power and is, at least on this front, an inferior theory.
Only more data and debate will be able to settle the score on dark matter and Mond. However, Mond coming to be accepted as the best explanation would shatter decades of scientific consensus and make one of the more mysterious features of the universe much more normal. A modified theory may not be as sexy as dark, unseen forces, but it may just have the advantage of being better science.
(Excerpt) Read more at scitechdaily.com ...
Well... controlled flight into the ground but yeah... she’ll fly.
I chuckled at that, myself.
There’s been attempts to modify Newton in the past. I remember reading an article on such an attempt in Science back in the 1980s. All came to naught, this might be different.
No. That is the job of the legislature. Separation of powers, you know...
So what I’d like to know includes the following:
Do we have any idea how much matter has been swallowed up by the dark hole at the center of a given galaxy?
and
Once it’s become part of that black hole, does a given quantity of matter still exhibit the same gravitational attraction it did before?
MOND over matter.
“There’s been attempts to modify Newton in the past. I remember reading an article on such an attempt in Science back in the 1980s. All came to naught, “
Einstein “modified” Newton over a century ago.
I don’t believe in gravity. I’m an agravitist.
...or it could all just be local variations in the fundamental constants of the universe...
> matter tells spacetime how to curve.
Even worse, at sufficiently small scales, spacetime doesn’t seem to exist either.
It sucks when you fall off a ladder.
What? Are you and Babble-on smoking dope together again?
Thought I told you two to go eat a pizza and laugh at your hands.
The only thing it omits is the role that watermelons and testicles play in quantum theory...
It’s tied together with string theory...
If you tie up your testicles with string they will
swell to the size of watermelons...
Oh, then they drop off just like watermelons too.
😂
Dang physicists.
Yes I know.
This was different as I remember the article the supposed need to do it came from finding anomalies in extremely precise measurements of the gravity constant. They thought the 1/r^2 relationship was going to have to be something like 1/r^2.00’something’. Turned it was instrument problems.
“sufficiently small scales”
Physics on a quantum scale is pretty mysterious. Particles existing in two places at once... Multiverses... This is real Fantastic Four stuff here. There’s a lot to speculate about but not a lot to make conclusions on. For these cases, as Boghossian observes, certainty is an enemy of truth, or... make room for God.
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