Posted on 07/08/2019 12:00:21 PM PDT by ETL
Fermilab
Published on Jun 19, 2019
The size and age of the universe seem to not agree with one another.
Astronomers have determined that the universe is nearly 14 billion years old and yet its diameter is 92 billion light years across.
How can both of those numbers possibly be true?
In this video, Fermilab’s Dr. Don Lincoln tells you how.
For further information, see http://www.fnal.gov
https://www.youtube.com/watch?v=vIJTwYOZrGU
(Excerpt) Read more at youtube.com ...
Why do you go out of your way to post comments like this? Who here actually understands what the heck you just posted????
I don’t know what that program or app is, but understand anyway. I suggest you copy the piece and replace those keyboard characters with standard characters.
I understand it—but I don’t agree with it.
As evident by the comments here, at least several people here would understand it. Just because you don't, for whatever reason(s), doesn't mean that no one does.
It’s under “Window’s Accessories.” Anyway, I’ll give it a shot and see what she’s does.
Thanks
What exactly don't you agree with? There are several different issues stated in that article.
Which of the following don't you agree with..
1) The Standard Big Bang model, as is, without modification, simply doesn't work.
2) Because the SBB model doesn't work, Inflation Theory was invented.
3) The reasons given why some very prominent cosmologists do not believe in the Inflation Theory.
Thanks! I think I vaguely remember hearing or learning about that some time ago.
Inflation happened early on, yes. But the expansion of space was not a short term effect. It is still expanding. That is why the (observable) universe can be 92 light years across.
Huh?????? What the heck are you talking about?
Probably so.
Progress in fundamental cosmology usually requires advances in other fields of physics. My guess is that the Large Hadron Collider or some later and better version of such a device will eventually resolve the argument over cosmic inflation. For now, the concept is too useful and too dug in to be repudiated. Like the old joke about the tourist in Mexico who persists in playing an obviously rigged roulette wheel, it is the only such game in town.
It probably should be called the big suck instead of bang, and the suck hasn’t ended. The total energy in the universe is still increasing as everything is being sucked apart into nothingness but the energy density is decreasing faster.
Hey, don't ask me how, I'm just telling you what the explanation is.
The universe is approximately 13.78 billion years old and yet 930 yottameters in diameter, which translates to 9.836 x 10^10 light years in diameter, or 98.36 billion light years. Taking half of that should equal the age of the universe, right? After all, from the moment of the big bang, wherever that occurred, the universe should necessarily grow at the speed of light in all directions simply because nothing we know of moves faster. It’s our universal speed limit.
Now, that may be true for the energy that is contained within our universe, but whatever is outside our bubble, it doesn’t seem to throw up the same impedance that free space within the bubble does.
Free space within our bubble has an electric constant known as the “permittivity of free space.” It is the distributed capacitance of the vacuum, or the capability of the vacuum to allow electric field lines. It is measured in Farads/meter and its symbol is e0. (e is epsilon)
It has a value of: e0 = 8.854187817 x 10-12 F/m.
Free space also has a magnetic constant known as the “permeability of free space.” It is derived by the production of a magnetic field by an electric field or moving electric charge. It is measured in Henries/meter and its symbol is u0. (u is mu)
It has a value of: u0 = 4pi x 10-7 H/m.
Combined as such: Z0 = E/H = u0c = 1/e0c = square root of u0/e0,
they equal the impedance of free space, which is approximately:
376.73 Ohms.
If you notice from the above formula, it is very much related to (c) - the speed of light.
They are exactly related to c with this formula:
c = 1/square root of u0e0.
If you know how algebraic expressions can be played with, you may notice that if either or both e0 or u0 drops to zero (0), c would increase to infinity.
So, this structure exists within our universe, and even if you had a region of completely empty space, this field would still run through it.
From this you might surmise that whatever is outside of our bubble that we are growing into, it doesn’t have the same impedance, and therefore space-time can grow “tachyonically,” and it appears to have does so for roughly 3000 years after the big bang.
Of course, it decelerated throughout this time and went from expanding at 43.4 sextillion times faster than the speed of light to just under c at 3000 years.
Its greatest growth expansion happened during the inflation period which is between 10-35 and 10-32 s after the big bang. The universe grew from a micron to about 13cm in all of 10-33 seconds. Inflation was triggered by the separation of the strong force. Gravity already decoupled, and only the electro-weak force remained unified.
The interesting thing is, the big bang doesn’t express itself until after inflation. One can think of it as the energy contained deep within a gravity well, like a black hole, and after the energy is released, it comes up out of the well, and when it does so it inflates (and also evenly distributes the energy within), and after it comes out of the well, it expresses itself.
Tom
( Thanks ETL, best I can do.)
See? You don’t even know enough about the subject to realize that several people here know and understand it quite well. You apparently aren’t the least bit familiar with the subject. And you don’t seem to be very interested in learning about it. If that’s the case, why are you here?
So it seems, with the universe destined to become in the end like a bowl of thin, lukewarm soup with matter and energy so widely distributed that cannot support life.
Inflation happened early on, yes. But the expansion of space was not a short term effect. It is still expanding. That is why the (observable) universe can be 92 light years across.
Of course it's still expanding today. As I mentioned in an earlier post, the expansion is actually accelerating, as relatively recent observations appear to indicate (observations starting more or less 20 years ago). By what I said in that quote, I was referring to the supposed many times faster than light very early phase of the expansion, the first very minor fraction of a second.
Easy answer.....God had to wait for the black paint to dry! If you want it looking good, hey it’s worth the wait.
Because a light year is a measure of distance, not time.
It’s like saying, how can a ten year old be 40 inches tall?
Inflation theory is not a theory--it's merely a SWAG hypothesis which we cannot test, and goes against every other theory of physics that we can see and measure. It's very similar to "Dark Matter," a substance physics uses to balance equations, but has yet to be discovered. It's merely a crutch to lean on so that we don't have to admit outright that our math, and our physics, is probably wrong--or at least not advanced enough to describe our universe.
I'm going with "God did it." While I understand that many scientists view that with disgust, I view with disgust their refusal to admit a possibility without ever trying to eliminate it scientifically. They just outright dismiss it without consideration.
That's not science.
I admit, "God did it" is very difficult, if not impossible, to prove. However, it is also pretty difficult, if not impossible, to disprove. Given our current understanding of physics in general, and cosmology in particular, I'll go with it until proven otherwise.
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