These idea are *accepted theory*.
Let's limit the present post to discussing
DARK MATTER here (since that was what I had been addressing earlier):
Let's be clear here. To my knowledge no one is saying "Dark matter is
necessarily only some new exotic material". It could be but it might not be so exotic. IN FACT there is still much research going on about Dark Matter. Here's what our friends at NASA say:
NASA said:
There is currently much ongoing research by scientists attempting to discover exactly what this dark matter is, how much there is, and what effect it may have on the future of the Universe as a whole.(
SOURCE)
What we
do know is that, if gravity is the same in all places then there is mass we cannot directly observe responsible for the rotational behavior of galaxies as well as the lensing of light.
The idea of "Dark Matter" is merely a placeholder that says "there's unseen mass" and by that scientists mean mass they have yet to be able to identify.
It
could be something quite exotic, but to my knowledge no one has claimed DEFINITIVELY what that exotic (or even non-exotic) material actually is.
It is a conjectural hypothesis used to account
for the very real gravitational effects.
As has been pointed out, we know quite a bit about how gravity functions (if not exactly the mechanism, gravitons or curved space-time, gravity waves, whatever) but we do know that gravity functions in a certain way requiring additional mass over what we see.
Let's put this in a simple example:
Suppose you see a 3 year old child step on a scale and he weights 850lbs. Would you just "assume" that you cannot trust gravity? Or would you assume there are some hidden weights on the child or the child is made of denser material?
They are all completely without empirical support.
WRONG. I'm not a cosmologist and even
I understand that gravity is the empirical evidence that supports the existence of
something unseen. That means it is
most decidedly NOT DOGMATIC BELIEF.
What happens if we simply change the terms to "God energy", "God matter" and "God's inflation"? Is it still not "dogma"?
As long as "God Matter" is defined as some mass that can affect gravity.
I suppose you could make that argument for all of the metaphysical bad boys of Lambda-CMD theory. Why make up placeholder terms for human ignorance?
Is this not clear yet? It isn't a placeholder for
ignorance it is a placeholder for
unobserved mass. It could be as mundane as cold hydrogen gas clouds, or as exotic as some as-yet-unknown particle in the "particle zoo" (both of which we know quite a bit about from
empirical analyses)
And how, exactly, does that gainsay the underlying idea of missing mass in an orbital calculation?
Granted according to
THIS citation, Einstein's General Relativity developed the idea of gravitational repulsion, and in addition there may be some strange highly conjectural hypotheses on the edges of this topic around matter and antimatter that get into gravitational repulsion, but even
THIS citation indicates the ideas are that matter and antimatter still attract. Honestly I cannot speak authoritatively on all aspects of dark matter, but are your kids being taught that level of conjectural detail in their schools? What age are your kids? 28? Are they in grad school? (If so, then please let them finish their graduate astronomy degree without getting too upset.)
My kids are being taught this garbage in school.
Are they being taught similar "garbage" such as:
F = GmM/r[sup]2[/sup]
How would you feel your kids were being taught YEC in school
Because YEC is
demonstrable garbage. (You want to take on the geology behind YEC I'd be happy to do that. That is my strong suit.) YEC is demonstrably
devoid of factual data in support of it as opposed to more standard old earth geology. End of story.
And what, exactly, are your kids being "taught"? That there is "missing mass" that the calculations don't account for?
How, exactly, is that garbage? So do you think the gravitational effects seen by cosmologists are "OK"? How do your calculations differ?
FYI, I almost exactly the same about Lambda-CDM theory as you might feel about YEC theories.
Except, again, YEC hypotheses are proven incorrect by actual data. YEC is not an alternative to completely unknown standard geology. It is an alternative to quite well developed geologic THEORIES and even LAWS.
That's the difference here. Dark Matter is mass that is as yet unaccounted for in the calculations. I really don't get why you would find the idea "repellent" unless you think the calculations are somehow inherently flawed or the failure of the calculations is somehow "correct".
I see no reason for either of these dogmas to be taught in the classroom.
Fine! I don't know what level of kids you are talking about. I hope it is taught in college where the calculations can be dealt with and the people receiving the information can see that the numbers don't add up unless you have the mass accounted for.
Faith has it's place, but not in the classroom. That should be reserved for "empirical physics".
When I read
THIS PAGE FROM NASA, I really don't see this as "faith-based". I see it as people attempting to understand why the "3 year old child weighs 850 lbs".
Nope. Show me one controlled experiment where "space" expanded due to gravity,
I rather assume you must have some scientific background so I hope I don't offend when I explain what we scientists do in a simplified manner:
Not all things are "measured in a petri dish" in the lab. We have a relatively good idea about how normal gravity works. That means that when I weigh some reactants out in the lab I don't have to
first develop the concept of mass, inertia and gravity all over again. In fact I can use gravity all day long to my advantage and I don't have to expand space at all to do it!
And in its most simplistic form, that is precisely what astronomers are doing with "Dark Matter". They are looking at space, they see light bending, they see rotation that is not accounted for by the
visible mass and they reason there is something missing. Some "dark matter" that they do not yet see.
They don't have to compress space or bend reality. They just have to use standard 17th century calculations from Newton and Kepler and maybe a bit of
last century's physics from Einstein to run the numbers and realize something doesn't add up.