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Author | Topic: The infinite space of the Universe | |||||||||||||||||||||||
Phalanx Member (Idle past 5734 days) Posts: 31 From: Old Bridge, NJ, US Joined: |
To answer a stupid question: "What makes you think there is gravity in the empty space of the universe[?]"
Well, as the force goes on into infinity, by definition, the force exerted by gravity permeates the entire universe.
Agobot writes: How could you state that as a fact? Go look up what a scientific fact, and you'll understand how. Barring that our localized space is some sort of special case for the rest of the universe (something about as unlikely as me barrier jumping through the wall), we assume that the rest of the universe follows the rules that we do. So, to answer your question, we state that as a fact because thinking otherwise would be pointless. And the Ignorant shall fall to the Squirrels - Chip 2:54
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onifre Member (Idle past 2972 days) Posts: 4854 From: Dark Side of the Moon Joined: |
Have you heard of the Big Crunch? I have heard of it but I didn't know it dealt with this issue, thanks for the link. What is you opinion on The Big Crunch thoery if you don't mind answering? This suggest the universe is finite, or at least our universe.
The mass of an object creates the curvature. Each individual piece of matter curves it individually and it all adds up together (probably in some kind of superposition or something) so to answer your question... it is both. Cool. So it is both but, its relative to the mass of the object and the total mass within the galaxy, so each galaxy curves gravity differently. How does this, or rather does this, difference in curvature, if there is one, effect the speed of 2 galaxies seperating from one another? Edited by onifre, : No reason given. All great truths begin as blasphemies
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New Cat's Eye Inactive Member |
We don't know if space is expanding(so far we know about matter expanding), Uhh, no... you're just wrong here. Space is what is expanding, not matter. You need to read up on the subject. Take a look here.
let alone what space is expanding into or if the whole universe is self-contained(as you claim, which seems like an over-simplification). The universe, by definition, is everything. There is nothing "outside" of the universe so it has to be self-contained. And there isn't anything for it to expand into, because if there was, then that would be a part of the universe too.
This is another gross over-simplification. In the material world that we happen to live in, EVERYTHING is contained into something else(bigger). The universe as a whole is very much unlike the material world that we happen to live in.
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Agobot Member (Idle past 5551 days) Posts: 786 Joined: |
quote: OMG. Now you are saying gravity generated by the Sun will go on into infinity? Are you really saying this??? Do you know what escape velocity means? Or being weightless? Or you didn't get the key part - I was talking of empty space 90 billion light years away from us. Edited by Agobot, : No reason given.
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Agobot Member (Idle past 5551 days) Posts: 786 Joined: |
quote: quote: quote: quote: quote: quote: This is religeon in its finest.
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cavediver Member (Idle past 3665 days) Posts: 4129 From: UK Joined: |
Now you are saying gravity generated by the Sun will go on into infinity? Are you really saying this??? Do you know what escape velocity means? Or being weightless? Clearly, you do not Especially if you think weightless means in the absense of a gravitational field. Do you really think that the Shuttle, at an altitude of just a couple hundred miles, is outside the Earth's gravitational field? Escape velocity has a very strict definition, and it is the velocity required of an object to reach infinite distance from a gravitating body - precisely because the gravitational field does potentially reach to infinity.
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New Cat's Eye Inactive Member |
OMG. Now you are saying gravity generated by the Sun will go on into infinity? Are you really saying this??? Gravity does go on into infinity. You really have no idea what you're talking about, do you?
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New Cat's Eye Inactive Member |
This is religeon in its finest. Wait, you don't know what religion is either!? I'm gonna stop wasting my time on you. The thing that sucks is that there are lot of intellegent and friendly people that you could have learned a lot about cosmology from had you not had such a shitty attitude. Oh well, its your loss.
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New Cat's Eye Inactive Member |
What is you opinion on The Big Crunch thoery if you don't mind answering? Meh, who knows? I think that the Heat Death, or Big Freeze, is more plausible. I used to like the Big Crunch because it could lead to a Big Bounce that would help explain things about the "before" the Big Bang, but I think its becomming a consensus that the universe is not cyclical.
This suggest the universe is finite, or at least our universe. I think its finite because it makes more sense that way. Infinity isn't really possible IMHO. If it was infinite then there could be more than one Earth and more than one you, etc. That's just ghey. And if it is just "our" Universe, then we're not using the right word because the Uni- part is saying that there is just one. Maybe its just one Verse in the Multiverse
so each galaxy curves gravity differently. How does this, or rather does this, difference in curvature, if there is one, effect the speed of 2 galaxies seperating from one another? I don't really know. I would think that it would have some effect, maybe slowing the expansion?
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Libmr2bs Member (Idle past 5748 days) Posts: 45 Joined: |
If I were to write a history of the universe, the title would be "Where in the universe is the first photon". I need help explaning how the first photon would be subject to gravitation waves and turning in gravitional induced spirals. I can deal with most of the rest being influenced as they wonder near gravitional generating objects as if on a roller coaster but my mind keeps looking around wondering if the first is continuing merrily along a straight path whistling "Can you tell me how to get to Sesame Street".
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Agobot Member (Idle past 5551 days) Posts: 786 Joined: |
This is religeon in its finest.
Wait, you don't know what religion is either!?
quote: The last thing I had in mind making this thread was turning the thread into a knowall wanna-be's playground. The topic is very far from our current state of knowledge and the last thing i was expecting was clear "answers". The aim was to collect some hypotesis about what's out there where the material universe ends and see what others are thinking on the matter. Then, at the end of the thread, it was turned into a religeous discussion where no facts were supplied, just bare claims and faith.
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onifre Member (Idle past 2972 days) Posts: 4854 From: Dark Side of the Moon Joined: |
I think its becomming a consensus that the universe is not cyclical. Dang that was the idea I thought sounded most plausable.
And if it is just "our" Universe, then we're not using the right word because the Uni- part is saying that there is just one. Maybe its just one Verse in the Multiverse I always f'k that up. Thanks for all the info. All great truths begin as blasphemies
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New Cat's Eye Inactive Member |
The last thing I had in mind making this thread was turning the thread into a knowall wanna-be's playground. You reap what you sow.
The aim was to collect some hypotesis about what's out there where the material universe ends and see what others are thinking on the matter. Ummm, the material universe doesn't end, though. Its unbounded so how can it end? Also, the term universe, by definition, includes everything so whatever is "out there" would have to be a part of the universe as well. So basically, its just a stupid idea for a thread.
Then, at the end of the thread, it was turned into a religeous discussion where no facts were supplied, just bare claims and faith. False. I've linked to a few pages with facts on the matter that you can research yourself. I'm not going to do your homework for you.
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New Cat's Eye Inactive Member |
I think its becomming a consensus that the universe is not cyclical.
Dang that was the idea I thought sounded most plausable.
Yeah... Oh well, right? But how is the expansion rate, which itself is increasing, going to slow down and reverse?
I always f'k that up. You can type 'fuck'
Thanks for all the info. You're welcome. Pay it forward.
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Marcosll Junior Member (Idle past 5800 days) Posts: 25 From: Estepona, Spain Joined: |
Agobot: "Lots of unsupported claims in this thread. What makes you think there is gravity in the empty space of the universe(beyong where we think matter ends, say 90 billion light years away from us)? How could you state that as a fact?"
LOL. You, my man, are funny. Compltely missunderstood what I wrote. I was talking about the non-null empty space, not what borders it at infity. Estepona Apartments - Apartments for sale and rent in Estepona, Spain
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