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Author Topic: Infinity?  (Read 16795 times)

Offline simeonie

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Infinity?
« on: 29/04/2005 18:35:09 »
Is there an infinity? By that I mean does space go on forever or does it end? There can't be an end..... what do you think

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Offline neilep

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Re: Infinity?
« Reply #1 on: 29/04/2005 23:07:12 »
Infinity is just...well...it's well big. Ask my wifey, she reckons she has infinity credit on our credit card !

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Offline Ultima

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Re: Infinity?
« Reply #2 on: 30/04/2005 00:48:58 »
It's one more than the largest number that you can envisage :D.

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Offline simeonie

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Re: Infinity?
« Reply #3 on: 30/04/2005 12:54:37 »
I dnt think you understand the question people. I am asking you if you think space ever ends or it just goes on for ever?


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Offline Deanwinfield

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Re: Infinity?
« Reply #4 on: 10/05/2005 20:36:33 »
I think space does hav limits. Red shift practically proves (in my eyes) that it is still expanding. Also i once heard that if space is infitate then there must be an infinate amount of matter. And if there is an infinate amount of matter then there is an Infinate amount of Gravity which, surely, would cause the universe to collapse on itself. Just something i read, seemed to make sense. Anyway, Hope that was a bit more on topic for you Simeonie. Good question though i love talking about this stuff!

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Offline chimera

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Re: Infinity?
« Reply #5 on: 10/05/2005 20:43:39 »
Infinities in my eyes are not really real, but mathematical abstractions. Like the hare eventually overtakes the tortoise, although all the paperwork says this is rubbish, you should sit down and take whatever medication you're on.

Like Moore's law, which predicts a doubling in processing power every umpteen months, is a statistical pattern of the stubborn variety, but not really a law. It will fail, simply becuase there is a limit to what you can do - unless you change the way you work drastically, by introducing altogether different technology. Meaning that if we shift to computing that uses quantum mechanics and light, we'd still call it a computer, but it's really a different machine.
This kind of 'inclusion' keeps Moore's law alive, naturally.

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Offline cinnamon_spider

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Re: Infinity?
« Reply #6 on: 10/05/2005 21:31:10 »
Interesting point Dean.

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Offline simeonie

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Re: Infinity?
« Reply #7 on: 10/05/2005 21:46:37 »
Dean there can't be an end to space because if there was just a wall there, there would have to be something on the other side of the wall. I think this question is a bit too big for any human mind to tackle really.

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Offline Ians Daddy

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Re: Infinity?
« Reply #8 on: 10/05/2005 23:37:50 »
My thoughts are that everything in the universe is an accumilation of spheres / circles. From atomic matter to the shape of the universe. It probably curles around and has no beginning or end. No boundries. Outside the sphere? I don't know...maybe "Heaven / Hell"? Maybe a vacuum. Nothingness, whatever that is. As dark is not dark, but merely the absence of light. Cold is the absence of heat. etc. Outside of infinity is merely the absence of infinity. Damnit, I thought I had something. Now my head hurts.
 

Offline Deanwinfield

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Re: Infinity?
« Reply #9 on: 11/05/2005 19:47:06 »
Why can't there just be nothing there? like there was at the beginning of time...just nothingness

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Offline simeonie

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Re: Infinity?
« Reply #10 on: 12/05/2005 07:59:37 »
Well there might not be anything there and that means there is infinity..... I really think that there can't be an end to the universe. Also the Heaven and Hell thing.... well that doesnt seem right but I dnt know where heaven is I know its somewhere but I do not think it is a place as such.

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Offline neilep

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Re: Infinity?
« Reply #11 on: 12/05/2005 08:30:04 »
quote:
Originally posted by Deanwinfield

Why can't there just be nothing there? like there was at the beginning of time...just nothingness

"There is no gravity, the earth just sucks"



Isn't nothingness.......somethingness ?

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Offline Deanwinfield

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Re: Infinity?
« Reply #12 on: 12/05/2005 19:39:30 »
Perhaps our brains just cannot comprehend what is out there past. Or very much past the 4 dimensions we know about. I hope we do understand one day though, i don't see why not...we will probably get killed by something long before then though.

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Offline simeonie

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Re: Infinity?
« Reply #13 on: 15/05/2005 17:11:49 »
We will one day when we die understand it all. Do you think there is a 5th dimension then?

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Offline DoctorBeaver

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Re: Infinity?
« Reply #14 on: 23/05/2005 21:54:44 »
quote:
Originally posted by simeonie

Do you think there is a 5th dimension then?



There used to be back in the 60s. It was the name of a pop band! heh [:p]

On a more serious note, there's a theory to do with superstrings that requires there to be 27 dimensions.
 

Offline chimera

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Re: Infinity?
« Reply #15 on: 23/05/2005 21:58:12 »
26. That 27th was your last drink, I think. :)

http://math.ucr.edu/home/baez/constants.html

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Offline DoctorBeaver

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Re: Infinity?
« Reply #16 on: 23/05/2005 22:01:57 »
Hey, what's 1 dimension between friends!

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Offline chimera

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Re: Infinity?
« Reply #17 on: 23/05/2005 22:39:13 »
Now that's a singularly good point you've got there, know that?

The living are the dead on holiday.  -- Maurice de Maeterlinck (1862-1949)
 

Offline DoctorBeaver

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Re: Infinity?
« Reply #18 on: 23/05/2005 23:56:47 »
Not bad for a man with no brane!
 

Offline chimera

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Re: Infinity?
« Reply #19 on: 24/05/2005 10:07:44 »
p-braned or d-braned?
« Last Edit: 24/05/2005 10:08:05 by chimera »
 

Offline Andrew K Fletcher

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Re: Infinity?
« Reply #20 on: 24/05/2005 10:24:50 »
I believe that we have not even begun to appreciate what is out there. The universe is so vast that there are countless billions of planets out there with a person just like me typing this at exactly the same time on a naked scientists forum on another internet connection in another galaxy.

Andrew
 

Offline chimera

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Re: Infinity?
« Reply #21 on: 24/05/2005 11:17:59 »
quote:
Originally posted by Andrew K Fletcher

a naked scientists forum on another internet connection in another galaxy.



I think they'll find that a registered name. What galaxy exactly were you refering to? We might have to send them a friendly email, or maybe not-so friendly if they persist.

Thanks for the heads-up, anyway.

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Offline simeonie

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Re: Infinity?
« Reply #22 on: 26/05/2005 21:46:39 »
That is a really good question! The first 3 dimensions are length, width and bredth I think!

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Offline DoctorBeaver

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Re: Infinity?
« Reply #23 on: 26/05/2005 22:02:58 »
Should I point out that breadth & width are the same? The 3 Ds are length, depth & breadth[:p]
 

Offline chimera

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Re: Infinity?
« Reply #24 on: 27/05/2005 19:37:30 »
Dimensions here are a bit different: they are more like 'parameters', or 'dials' on a machine. They are what is always 'there' in your model. If you talk 3-d, it's indeed l,d & b that are ALWAYS there. And if you need to describe something that is moving, time - the 4th.

But in cosmological models or particles you are not in 3-d or 4-d  space at all. There the true constants, as shown in the previous link, keep 'popping up' in your models. You cannot avoid them, it seems, or do with less.

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Re: Infinity?
« Reply #24 on: 27/05/2005 19:37:30 »

 

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