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The Universe Never Expands Faster Than the Speed of Light
Preposterous Universe ^ | 10/13/15 | Sean Carroll

Posted on 10/13/2015 11:04:06 PM PDT by LibWhacker

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Just when you think you know something, you don't.
1 posted on 10/13/2015 11:04:06 PM PDT by LibWhacker
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To: LibWhacker
Objects more than 24 billion light years from Earth are moving away from us at greater than the speed of light.

That is why we cannot see them.

2 posted on 10/13/2015 11:16:07 PM PDT by Praxeologue ( ')
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To: LibWhacker

But the science is settled. FTL expansion denier!


3 posted on 10/13/2015 11:16:44 PM PDT by Crazieman (Article V or National Divorce. The only solutions now.)
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To: Praxeologue

And the universe is 13.8 Billion years old. And began from a singularity, and some things are 24 billion light years apart. That alone tells you that yes, speed of light can be exceeded.
There are some very weak points in this article.


4 posted on 10/13/2015 11:22:50 PM PDT by DesertRhino ("I want those feeble minded asses overthrown,,,")
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To: LibWhacker

The entire universe is inside a wormhole.


5 posted on 10/13/2015 11:36:10 PM PDT by DannyTN
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To: LibWhacker

The entire universe is inside a wormhole.


6 posted on 10/13/2015 11:36:10 PM PDT by DannyTN
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To: All

Electric Universe Theory
https://www.thunderbolts.info/wp/eu-guides/beginners-guide/
Universe is not expanding. Black hole don’t exist


7 posted on 10/13/2015 11:36:18 PM PDT by 4rcane
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To: LibWhacker

OK.... Thanks for clearing that up.... I think.


8 posted on 10/13/2015 11:37:03 PM PDT by Bullish (Face it, insanity is just not presidential.)
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To: 4rcane

Stephen Crothers Destroys the Quackademic “Black Hole” & Relativity
https://www.youtube.com/watch?v=wRsGPq77X0Q


9 posted on 10/13/2015 11:38:27 PM PDT by 4rcane
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To: DesertRhino

I’m not even going to pretend I understand this, but I have a question. If two things left the point of the singularity in opposite directions traveling at the speed of light for 13.8 billion years, wouldn’t they now be 27.6 billion light years apart?


10 posted on 10/13/2015 11:41:21 PM PDT by tv_techie
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To: Praxeologue

What if those objects are receding?


11 posted on 10/13/2015 11:43:06 PM PDT by RedHeeler
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To: LibWhacker
This very very very awful terrible atrocious analogy should be stricken from the article:

"If you’re sitting at a stoplight in your Tesla, kick it into insane mode, and accelerate to 60 mph in 3.5 seconds, you won’t get a ticket for speeding, as long as the speed limit itself is 60 mph or greater."

It essentially destroys everything the author is trying to say, and it has nothing to do with anything whatsoever. The correct analogy is: If you accelerate your Tesla to 60 mph in 3.5 seconds driving East, the cop cannot claim you were going ~1060 mph by adding the speed of the Tesla to the speed of the underlying medium (Earth) because comoving objects in General Relativity [the cop, you] do not have velocities that add that way relative to the frame of reference they're in.

12 posted on 10/13/2015 11:45:29 PM PDT by FredZarguna (A Kenyan appears to have infiltrated the lumberyard.)
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To: tv_techie
In four dimensional space-time, all objects have been moving away from the singularity in different directions since the beginning of spacetime.

And to answer your question: Yes, objects can be further from each other than their distance to the beginning of spacetime, and those objects essentially cannot see each other, they are beyond each other's event horizons.

13 posted on 10/13/2015 11:51:12 PM PDT by FredZarguna (A Kenyan appears to have infiltrated the lumberyard.)
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To: tv_techie

Absolutely not! Well, maybe. The speed of light is only determined by relative points of reference. Some points of reference, maybe outside of relative relationship. Dimensional enthusiasm is not paid much attention, by well compensated “one size” standardist blowhards.


14 posted on 10/13/2015 11:52:39 PM PDT by RedHeeler
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To: RedHeeler
They are receding. Roughly speaking, over the largest scales all objects are receding from the singularity in spacetime. There are "local" instances over a few tens of thousands or millions of light years where objects are approaching each other. The best way to understand those is like water falling into, and then hitting a smooth, flat basin. Most of the water is spraying out from the point of impact in all directions. But on small scales you will find eddy currents, collisions between droplets, and so on.
15 posted on 10/13/2015 11:56:08 PM PDT by FredZarguna (A Kenyan appears to have infiltrated the lumberyard.)
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To: DesertRhino
Dark energy (DE) is causing everything un the Universe to fly apart an an accelerating rate. The edges of the observable Universe are now moving away from us considerably faster than the speed of light. See Dark Energy (YouTube) for a non-technical explanation.

This is confirmed by observations since the 1990s of Type Ia supernovae compared to their observed redshifts. The ratio of the redshift to the brightness of the exploding star is not constant, but rather stars that are farther away seem to have much higher redshifts, indicating acceleration.

The end result will be the Big Rip.

DE and the Inflation Theory are two different theories. Inflation Theory is still speculative with no real observational confirmation (other than the large-scale anisotropy for which it was invented to explain in the first place).

16 posted on 10/14/2015 12:00:53 AM PDT by Gideon7
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To: FredZarguna

Nice explanation, FredZ. Thank you.


17 posted on 10/14/2015 12:06:57 AM PDT by RedHeeler
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To: LibWhacker
If it expanded faster than light, then it would be in the dark. No one would see it anyway...

#darkmatters

18 posted on 10/14/2015 12:30:11 AM PDT by Smokin' Joe (How often God must weep at humans' folly. Stand fast. God knows what He is doing.)
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To: LibWhacker

When I get to heaven I want to see the universe from it. Watching the movie Interstellar made me think about this. And I want to know if God created aliens on other solar systems as well...


19 posted on 10/14/2015 1:05:05 AM PDT by RginTN
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To: DesertRhino

If I’m not mistaken, that 24 billion light years distance between two objects would be the sum total of their movement away from each other. That means they each moved, assuming both are moving at the speed they were since time began, 12 billion light years in those 13.8 billion years of time.


20 posted on 10/14/2015 2:22:18 AM PDT by Jonty30 (What Islam and secularism have in common is that they are both death cults)
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