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9/25/2005 2:06:21 AM
133
What's on the outside of the universe?
Seriously, though? Whenever I look at the sky, I always wonder: what is on the outside of our cosmic bubble?
The universe expands at a rate of around 1 trillion trillion trillion light-years per second. It would take one heckuva rocket engine to get to its end.
But here's another random thought: compare the universe to a rubber band; when you pull it, it stretches. Like how our universe expands.
...But when you let go, it INSTANTLY snaps shut. My point is, if the universe were expanding, chances are its contraction would be around a 1000 times faster, so we'd never feel it.
Back on track: what is on the outside of our universe? It's like a video game: there's an invisible wall. There is another side. But you cannot reach it. If you try, your character dies.
It's impossible to imagine nothing on the outside of a barrier. What is outside the universe's boundary? What does that boundary look like? It freaks me out just thinking about it; like humanity isn't ever supposed to know the answer. Try it: try thinking of an "outside" to the universe. It will give you a headache.
What's preventing us from imagining the outside of the universe???
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Sausage
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tecnically, another universe, think of it as a mirror. Thats my thoery at the moment. and when the ytouch(like in a real mirror), two events could happen, 1. the ywill go into eachother, causing parrell coliisens , but we wont feel it, since we are the same. 2. We bounce off and crunch, like the Big Crunch thoery. [Edited on 9/24/2005]
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The universe doesnt expand that fast, nothing can go faster than light, etc. etc.... Technically there's nothing on the outside of the universe, i don't mean like, vacuum, i mean NOTHING. so much nothing we can't even comprehend it. If you ever listened in physics, you'd know that an elastic band doesnt snap shut instantly, it is just the elastic force is much greater than that of the air resistance, so it goes very fast, although the universe has nothing to push against when it does start to contract (not for a few trillion trillion years yet) it is full of conflicting forces of gravity, so it would still take trillions upon trillions of years to compound itself back into pre-big bang matter.
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I've thought about that before, and i've thought about how the universe started,and what it was like before. It is way too much to think about
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[quote][b]Posted by:[/b] elmicker The universe doesnt expand that fast, nothing can go faster than light, etc. etc.... Technically there's nothing on the outside of the universe, i don't mean like, vacuum, i mean NOTHING. so much nothing we can't even comprehend it. If you ever listened in physics, you'd know that an elastic band doesnt snap shut instantly, it is just the elastic force is much greater than that of the air resistance, so it goes very fast, although the universe has nothing to push against when it does start to contract (not for a few trillion trillion years yet) it is full of conflicting forces of gravity, so it would still take trillions upon trillions of years to compound itself back into pre-big bang matter.[/quote] 1--I'm not taking physics. I'm taking environmental science. 2--How the heck are you certain that there's nothing on the outside? 3--Yes, the universe expands that fast. I read several astronomy books; in one, it is stated that scientists test how fast the universe expands by studying how fast galaxies drift apart from each other. Besides; for an explosion that is trillions of degrees hot (the big bang), wouldn't you think the universe would expand faster than light?
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Sorry. Actually i think the universe will continue expanding for a long time then stop.
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I believe in an infinite universe. You cannot reach the end of it.
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[quote][b]Posted by:[/b] elmicker The universe doesnt expand that fast, nothing can go faster than light, etc. etc.... Technically there's nothing on the outside of the universe, i don't mean like, vacuum, i mean NOTHING. so much nothing we can't even comprehend it. If you ever listened in physics, you'd know that an elastic band doesnt snap shut instantly, it is just the elastic force is much greater than that of the air resistance, so it goes very fast, although the universe has nothing to push against when it does start to contract (not for a few trillion trillion years yet) it is full of conflicting forces of gravity, so it would still take trillions upon trillions of years to compound itself back into pre-big bang matter.[/quote] Ive belived in this NOTHING theroy for awhile too.
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One of my physics teachers said a possibility would be to have an [i] anti [/i] matter universe on the other side. What that means I can't say.
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[quote][b]Posted by:[/b] Midship One of my physics teachers said a possibility would be to have an [i] anti [/i] matter universe on the other side. What that means I can't say.[/quote] I think this means nothing can get out because if it did it would stop existing.
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[quote][b]Posted by:[/b] Frylock3897 [quote][b]Posted by:[/b] Midship One of my physics teachers said a possibility would be to have an [i] anti [/i] matter universe on the other side. What that means I can't say.[/quote] I think this means nothing can get out because if it did it would stop existing.[/quote] That's a good theory, I think I agree.
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[quote][b]Posted by:[/b] Frylock3897 [quote][b]Posted by:[/b] Midship One of my physics teachers said a possibility would be to have an [i] anti [/i] matter universe on the other side. What that means I can't say.[/quote] I think this means nothing can get out because if it did it would stop existing.[/quote]He meant Dark matter, you can't see dark matter, so thier might be a reflected universe, just, withall dark matter.
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note to my second thoery: it is believd there IS dark matter existant in our universe, like black holes. I cant remeber wha, but it is also thorised that dark matter is everwhere to keep the laws and phsics of time and stuff in balance, so there must be some normal matter in the dark matter unverse.
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There is also [b]dark energy[/b]. Together, the dark matter and energy work against each other to balance the universe's expansion.
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you guys sound so smart
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maybe if we did get outside of it, there would probely be a mix of colors that we have never seen nor imagined, defining reallity -blam!- like flying stuff, i dont know, but i do know that it would BLOW OUR MIND.
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[quote][b]Posted by:[/b] Vitamin Zawaz There is also [b]dark energy[/b]. Together, the dark matter and energy work against each other to balance the universe's expansion. [/quote]Thanks, I knew i forgot somthing.
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[quote][b]Posted by:[/b] Halo_tru7h maybe if we did get outside of it, there would probely be a mix of colors that we have never seen nor imagined, defining reallity -blam!- like flying stuff, i dont know, but i do know that it would BLOW OUR MIND.[/quote]naw, we would break the laws of time and when we enter the univere(the dark one) the universe will freeze, not really, since you your a diffrent matter object, the time would be frozen, TO YOU, but the dark inhabitance and stuff will still roam, thats just a hunch though.
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[quote][b]Posted by:[/b] HaloFighter92 [quote][b]Posted by:[/b] Halo_tru7h maybe if we did get outside of it, there would probely be a mix of colors that we have never seen nor imagined, defining reallity -blam!- like flying stuff, i dont know, but i do know that it would BLOW OUR MIND.[/quote]naw, we would break the laws of time and when we enter the univere(the dark one) the universe will freeze, not really, since you your a diffrent matter object, the time would be frozen, TO YOU, but the dark inhabitance and stuff will still roam, thats just a hunch though.[/quote]forget that, messed up, you would just not be visable,since your diffrent matter(dark matter wouldnt see light matter either). So noone can see you, and you cant see ANYTHING, since aain, its a difrent matter type.
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[quote][b]Posted by:[/b] HaloFighter92 [quote][b]Posted by:[/b] Halo_tru7h maybe if we did get outside of it, there would probely be a mix of colors that we have never seen nor imagined, defining reallity -blam!- like flying stuff, i dont know, but i do know that it would BLOW OUR MIND.[/quote]naw, we would break the laws of time and when we enter the univere(the dark one) the universe will freeze, not really, since you your a diffrent matter object, the time would be frozen, TO YOU, but the dark inhabitance and stuff will still roam, thats just a hunch though.[/quote] That would be awesome...like a glitch in the universe. ...But that would be scary too. Cool theory.
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[quote][b]Posted by:[/b] Vitamin Zawaz 1--I'm not taking physics. I'm taking environmental science. [/quote] What? No... I think you are talking physics. Enviromental sciences deals with ecology, where as physics deals with how mass and energy interact. [quote]2--How the heck are you certain that there's nothing on the outside?[/quote] A valid question. In theory other universes could exsist outside of our "universe" if the distance they were at was so great that the forces of the two (or more) universes had negligible effect on eachother. So take the size of our universe and multiply that by, say 10 to the 10th to the 10th. That probably wouldn't be far enough. [quote]3--Yes, the universe expands that fast. I read several astronomy books; in one, it is stated that scientists test how fast the universe expands by studying how fast galaxies drift apart from each other. Besides; for an explosion that is trillions of degrees hot (the big bang), wouldn't you think the universe would expand faster than light? [/quote] As far as our human undrestanding of mass and energy, NOTHING can travel faster than the speed of light. For mass to go faster than the speed of light, you need to expend an INFINITE amount of energy. INFINITE. So however much energy you have (yes, even the Big Bang), you'd need MORE energy. You have the energy of a MILLION Big Bangs? You still need more energy to even move one atom of matter faster than the speed of light. That's how the mass works. (See the works of Einstein and beyond.) (Note: If you look at M-theory and other, there can be other demenstions that exsist not outside of our universe, but 'next to.' But this is separtate issue.) As too the rubber band/expanding/contracting universe deal: The universe isn't expanding in that way. A poor, but much closer, analogy would be rolling a ball up a hill. So you have a large hill of a constant angle and try to roll a ball up it. That would be the energy 'throwing' the mass of the universe up the hill. Eventually the ball expends the energy of your roll and slows down. Then gravity takes effect and it starts to roll back down. This is how the unverse starts to contract. All the mass of the universe has gravity that starts to pull it back together. The ball doesn't reach it's peak and suddenly starts to shoot back down the hill. Again, poor analogy but closer.
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thanks, and sorry for bad grammer/spelling im tired as hell.
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Physics does conflict with itself a little bit, like the Law of Conservation of Energy/Matter, If those were both true, then either nothing would be here, or everything would have been here forever.
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Ashwalker, I said I was [b]taking[/b] environmental science, not talking about it. Elmicker said, "If you payed attention in physics, etc." So I said that I don't take physics. By the way, nice post. [Edited on 9/24/2005]
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There's an invisible wall, but you can get past it if you stand on top of a guy with the sword and he sword-cancels up to you.
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Sorry. I misunderstood. Now, let's go onto dark matter. Dark matter and antimatter are not the same. Let's stick with dark matter first. Dark matter is a bit of a cop out. Basically, by our understand of how matter and engery interact and out observation of the universe, there appears to be 90% of the universe we CAN'T detect. This mysterious unobserved matter is referred to as "Dark Matter." Oh and here are a few links: [url=http://en.wikipedia.org/wiki/Dark_matter] Dark matter [/url] [url=http://en.wikipedia.org/wiki/Dark_energy] Dark energy [/url] [url=http://en.wikipedia.org/wiki/Antimatter] Antimatter [/url]
