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Post by 1dave on Sept 21, 2020 6:05:23 GMT -5
We have become aware that our universe had a beginning about 13.7 billion years ago, and therefore will have an end.
Where are we in that process? Near the beginning, middle or near the end?
We have other "singularities" to study and help us answer those questions.
Scientists are of the opinion that "black holes" had to form early on to allow massive hydrogen clouds to form to allow galaxies and the first stars to ignite. There is a black hole in the center of each galaxy. As galaxies collide, their black hole merge, as the Milky Way and Andromeda galaxies have done many times, and those two are on their way to a collision right now.
Those singularities are in competition to become the next universe!
So Our big bang must have begun long before the demise of the previous universe. Does some of it still linger as the event horizon of our universe continues to expand, engulfing finally it's last far flung particles?
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Post by 1dave on Sept 21, 2020 6:06:44 GMT -5
As our universe seems to be still expanding, my guess is that we are still in the early stages.
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Post by mohs on Sept 21, 2020 15:41:37 GMT -5
Its damn good question Dave
I’ve often wondered about all this space ?
What inflating?
Perhaps like so many other things the truth is counter intuitive ?
Maybe things are deflating?
Materialism is getting smaller
Leaving us with erroneous thought that things are expanding?
Plank+Zeno
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Post by stephan on Sept 21, 2020 23:14:35 GMT -5
How is there more than one singularity? That’s a little bit like saying, “sort of unique.”
Astronomers may need a new word.
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Post by mohs on Sept 22, 2020 9:17:31 GMT -5
Possible that pre-Socratics could help us with this
I’m thinking particularly of Heraclitus
all the pre-Socratic thoughts were insightful
as the first documented attempts of mankind’s musing on metaphysics
Heraclitus postulated a one stable source that always changing ?
Now that thought is counter intuitive in itself
How can a one stable source created all the diversity ?
Hera postulated the nature of fire is this one stable source
Fire changes things but its nature remain the same
But where do these things come from that fire change?
Modern science provides some insight
As too Heraclitus we only have scanty fragments of his pithy thought
Now it time for me to grind
The stohn changes but the rock remains the same
thank You
Mohstly
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Post by knave on Sept 22, 2020 9:24:32 GMT -5
I like the guy that shouted Eureka as he streaked the streets.
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Post by mohs on Sept 22, 2020 9:27:26 GMT -5
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Post by greig on Sept 22, 2020 10:00:03 GMT -5
Thinking about questions like this will make my head explode. ;-)
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Post by victor1941 on Sept 22, 2020 10:23:31 GMT -5
Mohs, where was the tub/man picture taken? For Dave, does the expansion also include contractions?
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Post by mohs on Sept 22, 2020 10:23:44 GMT -5
shattered rocks.... m  hslty |
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Post by mohs on Sept 22, 2020 10:25:17 GMT -5
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Post by Starguy on Sept 22, 2020 12:43:20 GMT -5
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RWA3006
Cave Dweller 
Member since March 2009
Posts: 4,633 
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Post by RWA3006 on Sept 22, 2020 21:17:51 GMT -5
Quantum entanglement blows my mind about this ^^^ much too.
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Post by stephan on Sept 22, 2020 23:49:48 GMT -5
When I took thermodynamics, the following quote was on page 1 of the textbook:
The first time you study thermodynamics, you will not understand it.
The second time you study thermodynamics, you will understand it.
The third time you study thermodynamics, you will realize that you did not, in fact, understand it the second time.
Encouraging, huh?
They weren’t wrong.
🤯
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Post by 1dave on Sept 26, 2020 8:50:52 GMT -5
When I took thermodynamics, the following quote was on page 1 of the textbook: The first time you study thermodynamics, you will not understand it. The second time you study thermodynamics, you will understand it. The third time you study thermodynamics, you will realize that you did not, in fact, understand it the second time. Encouraging, huh? They weren’t wrong. 🤯 Yes Rocks Remember - in a multitude of ways - Most spectacular is the radioactive breakdown residue. phys.org/news/2016-10-galaxies-collide.html And we worry about an asteroid hitting earth! |
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RWA3006
Cave Dweller
Member since March 2009
Posts: 4,633
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Post by RWA3006 on Sept 26, 2020 8:53:30 GMT -5
When I took thermodynamics, the following quote was on page 1 of the textbook: The first time you study thermodynamics, you will not understand it. The second time you study thermodynamics, you will understand it. The third time you study thermodynamics, you will realize that you did not, in fact, understand it the second time. Encouraging, huh? They weren’t wrong. 🤯 That about sums up my experience with t dynamics too. One of the things I prize most about my education is it taught me a bit of what I don't know. |
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Post by 1dave on Sept 26, 2020 9:06:20 GMT -5
Mohs, where was the tub/man picture taken? For Dave, does the expansion also include contractions? Contractions? They are all over the place. Stars compressing atoms into ever more compact elements . . . Gravity pulling planets ever tighter together, pulling in meteors, asteroids, comets, other planers, - stars doing the same, galaxies pulling everything into their central black holes . . . As I now see the BIG PICTURE, There is a batch of new black holes over my shoulder being pulled into the big one in front of me. That big one will become the center of the next universe while this old one has just begun to collapse. As this universe is ~ 13.7 billion years old, my best guess is that universes probably live around 200 billion years before total demise. |
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Post by stephan on Sept 26, 2020 9:51:48 GMT -5
When I took thermodynamics, the following quote was on page 1 of the textbook: The first time you study thermodynamics, you will not understand it. The second time you study thermodynamics, you will understand it. The third time you study thermodynamics, you will realize that you did not, in fact, understand it the second time. Encouraging, huh? They weren’t wrong. 🤯 Yes Rocks Remember - in a multitude of ways - Most spectacular is the radioactive breakdown residue. phys.org/news/2016-10-galaxies-collide.htmlAnd we worry about an asteroid hitting earth! True enough. Nothing like a dinosaur our wood fossil to humble you about our time on earth. And then some radiodating of other rocks makes you realize that, in the grand scheme of things, even dinos aren’t all that old. Billions of years from now... talk about a slow-speed collision (cue sound effects, “noooooooooooooooo...”). |
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Post by stephan on Sept 26, 2020 9:56:57 GMT -5
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Post by mohs on Sept 26, 2020 10:45:56 GMT -5
out of contraction emerges birth
count !
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hslty
