Millennium Simulation: "The Largest Model of Our Universe"
433 replies, posted
[QUOTE=Jack Bryce;14151395]In 5 billion years, humans will be extinct, whether by evolution or self-destruction, we will be gone.
Also, that .gif is amazing, I've seen the Hubble Ultra Deep Field before, but with all that other info around it it's just mindblowing.[/QUOTE]
True. I somehow doubt we will survive another few thousand years to be honest.
[QUOTE=frontman001;14168067]It mysteriously was at the instant of the big bang but it is not anymore. The light would reach us anyway because light is a constant. E=MC² There is no Doppler effect for the speed of light.[/QUOTE]
This makes no sense at all.
Space can expand faster than the speed of light. But matter in space itself can't move faster than it. That's a difference.
Also space expands by a rate of [img]http://39051.vs.webtropia.com/cgi-bin/mimetex.cgi?\text\frac{{meter}}{\text{meter second}[/img]. So if space expands by 10 m ever light year and second, a point one light year away seems to move away by 10 m/s from us. A point 2 light years away even by 20m/s and by X-lightyears away even by the speed of light: This is called the planck-border. At this distance the space between this point and us expands by the speed of light. We can't look behind this border since any point there moves away from us by more than the speed of light due to space expanding between us and that point. No light from there can ever reach us.
Also [img]http://39051.vs.webtropia.com/cgi-bin/mimetex.cgi?E = mc^2[/img] has nothing to do here and it's correct formulation is [img]http://39051.vs.webtropia.com/cgi-bin/mimetex.cgi?E = \frac{mc^2}{\sqrt{1 - (v/c)^2}}[/img]
And there is a dopller-effect for light. Guess how we found out that space is expanding: Galaxies move away from us, therefore doppler-effect shifts their light to red and that is what we detected.
Or in other words: All you said was wrong.
[QUOTE=aVoN;14168142]This makes no sense at all.
Space can expand faster than the speed of light. But matter in space itself can't move faster than it. That's a difference.
Also space expands by a rate of [img]http://39051.vs.webtropia.com/cgi-bin/mimetex.cgi?\text\frac{{meter}}{\text{meter second}[/img]. So if space expands by 10 m ever light year and second, a point one light year away seems to move away by 10 m/s from us. A point 2 light years away even by 20m/s and by X-lightyears away even by the speed of light: This is called the planck-border. At this distance the space between this point and us expands by the speed of light. We can't look behind this border since any point there moves away from us by more than the speed of light due to space expanding between us and that point. No light from there can ever reach us.
Also [img]http://39051.vs.webtropia.com/cgi-bin/mimetex.cgi?E = mc^2[/img] has nothing to do here and it's correct formulation is [img]http://39051.vs.webtropia.com/cgi-bin/mimetex.cgi?E = \frac{mc^2}{\sqrt{1 - (v/c)^2}}[/img]
And there is a dopller-effect for light. Guess how we found out that space is expanding: Galaxies move away from us, therefore doppler-effect shifts their light to red and that is what we detected.
Or in other words: All you said was wrong.[/QUOTE]
Well then I don't fully understand it because everyone says the speed of light is a constant, it doesn't change. But I did know about the red effect and how we discovered the universe was expanding.
So if a car is going 10 m/s down a road, would the speed of the light coming out of it's headlights be 10 m/s faster?
[QUOTE=aVoN;14168115]Space mustn't have boundaries, could be infinitely big or limited but is sure still expanding - At least locally where we are.
Matter can also be created out of energy and that's how it's supposed matter came into existance after the inflation: The inflaton, the field being responsible for the universe growing up in the beginning is supposed to be collapsed and it's energy materialized as matter.
Same now can happen. All over energy-density of space is also been supposed to be constant. So if you have a negative part of energy (e.g. dark energy which is also supposed to make space expand) the must be a positive counter-part - Or the all-over energy can't be constant. And this counter-part can now again materialize to matter.
This was a little excerpt of many current hypotheses combined in a few sentences. Not that it's a hypothesis - There is sadly not imperical evidence yet but you can never know. And they are much better for explaining the universe than "other ideas posted by internet-people in this thread" yet. Especially because they origin from physicist and not from teenagers.[/QUOTE]
So even if matter can be created, that doesn't mean there is infinite matter right here, there is just a possibility of it happening eventually. But as of right now, there is not infinite matter in our universe.
[QUOTE=Dx2;14146763]Why's everything gotta be so huge[/QUOTE]
Sounds like someone is jealous.
[QUOTE=sltungle;14158702]You want observational evidence? Okay. WE'RE the evidence. We ARE life and we DO exist within the universe. We're the proof that life exists and there's no reason why it shouldn't exist anywhere else if it exists here (especially seeing as, as far as we can tell, the laws of physics are exactly the same everywhere).[/QUOTE]
No, we're proof that we're the only life in the Universe. There hasn't been any other, and there isn't likely to be any other and thus, aliens don't exist.
[QUOTE=Upgrade123;14164408]Bah ha ha ha, learn your basic science. There are six kingdoms, not just animals.
1. [b]Animals.[/b] Humans fall into this category.
2. [b]Plants.[/b] Fucking food, biatchez!
3. [b]Fungi.[/b] Shrooms.
4. [b]Eubacteria.[/b] I have nothing funny to say about this one, sorry.
5. [b]Archaebacteria.[/b] Older than mikfoz.
6. [B]Protists.[/B] Odds and ends.[/QUOTE]
[b]Intelligent[/b] alien life, there is no other and we're the only form of its kind.
[QUOTE=livelonger12;14168731]No, we're proof that we're the only life in the Universe. There hasn't been any other, and there isn't likely to be any other and thus, aliens don't exist.[/QUOTE]
We ARE aliens, you close minded fuck! Go to any other place in the universe and use it as the 'standard' and we suddenly become the aliens.
Fuck, I shouldn't feed trolls but you lot piss me off so damn much.
I think it's interesting how when you zoom out all the galaxies you end up with what looks like some kind of strands.
Just like you zoom out on a picture of some atoms and you end up looking at a jumper or something.
[QUOTE=frontman001;14168541]Well then I don't fully understand it because everyone says the speed of light is a constant, it doesn't change. But I did know about the red effect and how we discovered the universe was expanding.
So if a car is going 10 m/s down a road, would the speed of the light coming out of it's headlights be 10 m/s faster?[/QUOTE]
No. You can't add velocities by A + B. You need the lorentz transformation for it.
Anyway, that's not the point: Space can expand, even faster than the speed of light. But no matter can ever reach the speed of light within space. That's a huge difference.
Also these "points" I spoke about: They do not move. It's space expanding between it so it looks like they move away. And this can exceed the speed of light.
[QUOTE=livelonger12;14168731]No, we're proof that we're the only life in the Universe. There hasn't been any other, and there isn't likely to be any other and thus, aliens don't exist.[/QUOTE]
You must be literally stupid if you think like this. Just because we are unable to check if there is other life in space (according to it's incredible size it's really really likely we [u]aren't[/u] alonr) does not mean there isn't.
There are billions of billions of galaxies in observable space (space itself is even much bigger). And every galaxy has billion of stars and every star could have many planets.
Just the fact that we can exist and life is really redundant on earth really speaks for itself: There must be other life. Maybe already gone, maybe currently developing: Nobody can be sure.
[QUOTE=-AJ-;14146602]This should be shown to all the people who think we are the center on the universe, or believe were the only sentient race.[/QUOTE]
Got to admit that if we explored the entirety of the universe and found nothing anywhere else we'd feel pretty fucking awesome.
[QUOTE=aVoN;14168967]Just the fact that we can exist and life is really redundant on earth really speaks for itself: There must be other life. Maybe already gone, maybe currently developing: Nobody can be sure.[/QUOTE]
If nobody can be sure there's also the chance that there isn't any other life anywhere, sure it's an incredibly small chance but it's still one.
I'll just point out that I'm speaking for argument's sake, I do believe that there most likely is other life out there somewhere.
[QUOTE=aVoN;14168967]You must be literally stupid if you think like this. Just because we are unable to check if there is other life in space (according to it's incredible size it's really really likely we [u]aren't[/u] alonr) does not mean there isn't.
There are billions of billions of galaxies in observable space (space itself is even much bigger). And every galaxy has billion of stars and every star could have many planets.
Just the fact that we can exist and life is really redundant on earth really speaks for itself: There must be other life. Maybe already gone, maybe currently developing: Nobody can be sure.[/QUOTE]
It's highly unlikely that life is in our galaxy. It's too easy to detect, we're a very noisy planet.
Even if there was, there would be no tangible way to communicate, and space travel is purely science fiction, so there might as well be no alien life regardless, it won't affect us either way.
[QUOTE=NoDachi;14169009][B]It's highly unlikely that life is in our galaxy[/B]. It's too easy to detect, we're a very noisy planet.
Even if there was, there would be no tangible way to communicate, and space travel is purely science fiction, so there might as well be no alien life regardless, it won't affect us either way.[/QUOTE]
Our galaxy is [B]90-100 000 LY[/B] across, no matter how noisy we are. The "noise" we have made, radio waves I assume, have only traveled 100-150 LY away from us.
Also, we are the proof that there is life in this galaxy...
[QUOTE=livelonger12;14146957]Also, we are the only ones. There is no such thing as aliens; there are only animals and humans.[/QUOTE]
1. possible in our universe (Mars was like Earth but died out, we could possibly be the only "alive" planet in this area/universe)
2. Humans are just intelligent Animals with Humanity being more apparent.
3. I'm sure there's other life-forms. Hell, maybe other Humans/humanoids
[QUOTE=Swebonny;14169133]Our galaxy is [B]90-100 000 LY[/B] across, no matter how noisy we are. The "noise" we have made, radio waves I assume, have only traveled 100-150 LY away from us.
Also, we are the proof that there is life in this galaxy...[/QUOTE]
We can clearly detect a small ignition of a retro-booster as far out as pluto with current technology.
But that isn't the whole galaxy. Even though we can detect a "retro booster" as far out as Pluto, I don't think that is an easy task.
Oh god I came
Here is a theory I herd of once. Consider yourself an ant that is inside a balloon. You can leave earth and travel in a strait line away, and eventually end up back at earth.
[img]http://www.tehupload.com/uploads/48735418ad22218ant.PNG[/img]
On a different note, many people consider space, or the lack of matter in it, to be nothing. That is because we have nothing else to compare it to. Use this analogy, you are a fish in water. You have always been in water and know nothing else but water. The water is like space, and once the fish leaves water, is suddenly becomes aware of something else and thus water now is a thing. So there could be something outside of space.
Another point I would like to make is that life exists outside of earth. If you think otherwise, take a step back from your ignorant head and actually look at things. If you can't comprehend it, you don't deserve to know. If your religious, there is no hope for you anyways.
Time is a connection between two events.
The theory with the twin paradox is wrong. Most of you probably don't know but many scientists support the fact that it is in-fact WRONG. Including Hawkings! When one twin is leaving earth, the other one would perceive him as getting younger, but that is because the light takes longer to travel the distance from one to another. BUT, on the way back, he would be getting older because the light now takes less of a time to travel, thus accelerating. It is all an illusion.
This theory right here is the most convincing one so far. I suggest you look into it.
[url]http://en.wikipedia.org/wiki/M-theory[/url]
Oh, look...star talks...:D
Some Numbers and facts:
1 Lightyear ~ 9.5 trillion km
1 Parsec ~ 3.7 Lightyears
Milky Way size ~ 100.000 Lightyears (diameter)
height diameter ~ 16.000 Lightyears
Stars contained in our Galaxy ~ 300 Billion Stars (note: not all Stars you see are actually Stars...some are other Galaxies)
next Galaxy = Andromeda ~ 2.5 million Lightyears
The Milky way, Andromeda and Triangulum Galaxies are part of the so called "local group", a group of normal sized spiral Galaxies and some minor dwarf Galaxies. The diameter of this local group is ~ 30 million Lightyears.
The local group is part of a Galaxie Cluster inside the "Galaxie Web". Inside this Galaxie Cluster, there are at least 4.5 billion Galaxies like ours and the Andromeda Galaxie and our Galaxie Cluster is not even 0.001 % of the viewable Universe.
The longest reach of telescope is beyond the big bang (about 14 million lightyears), yet revealing nothing what´s behind this Web...obviously there was nothing before the Big Bang (that´s what Theorie today says). Inside the viewable Universe there are at least [b]800 billion Galaxys[/b] like ours, not counting the multiple smaller Galaxies and Star Clusters.
Some more definations:
Star = usually something similar to our sun...the biggest knowen star is Deneb, I believe...it has about 300 times the size of our sun and is about 3.000-6.000 lightyears from Earth. Center of a Solar System.
Solar System = usually containing a Sun, our binary stars and some planets orbiting the Sun(s)
Star Cluster = a random set of stars, usually not bigger then 10.000 Lightyears in diamter...can sometimes be defined as dwarf or minor Galaxie
Galaxy = usually containing more then 100 billion stars, often has a spiral shape and there are at least 800 billions of them, inside the viewable Universe.
Galaxy Cluster = usually containing ~ 1-5 million Galaxies and is not even 0.001% of the wholes Universe size.
Now, take some good drugs, think about what I wrote and then start getting paranoid, about how small we are...:D
Edit:
And the Theorie @Luishi posted is true. Don´t think of our universe like a box, that is limited to any dimension. Our Galaxie is without any dimension, usually moving in itself. Consider the Universe to be something to be like two scrolls, that are turning inwards and at the middle of thoose scrolls, is where our Universe expands.
Forget about dimensions, if you´re thinking about our Universe. Limits are made by Humans and can´t be applied to our Universe...;)
[QUOTE=Callius;14168989]If nobody can be sure there's also the chance that there isn't any other life anywhere, sure it's an incredibly small chance but it's still one. [/QUOTE]
A small probability by eg "lifeforms per volume" (lets hypothetical say 0.0000000000000000000000000000000000000000001 % every lightyear), rises really fast on huge volumes, especially on the scale our universe is.
And the fact we exist means, this probability is non-zero. That's additionally what my point is about.
[QUOTE=NoDachi;14169009]It's highly unlikely that life is in our galaxy. It's too easy to detect, we're a very noisy planet.
Even if there was, there would be no tangible way to communicate, and space travel is purely science fiction, so there might as well be no alien life regardless, it won't affect us either way.[/QUOTE]
I never said "life next door in our galaxy". That has a small but non-zero propability.
Also you contradict yourself: You said "it's easy to detect" because we are "noisy" and then you say "there is no tanguble way to communicate".
Now tell me, how can we be "noisy" by not being able to communicating/sending radio-waves into space?
Also don't think, detecting planets with possible life on is easy. (Finding stars is easy, planets is hard - they don't shine). So far we know about a few hundreds exo planets where a hand full can support life.
It's most likely, that really much of the billion stars just in our galaxy have planets.
[QUOTE=NoDachi;14169231]We can clearly detect a small ignition of a retro-booster as far out as pluto with current technology.[/QUOTE]
Pluto is, what, a couple light-hours away?
We're talking over 100,000 years for even the earliest of our radio signals to permeate the entirety of our galaxy.
Damn, that's amazing.
Of course we're not alone what are you talking about
[img]http://img6.imageshack.us/img6/9891/111lcv.jpg[/img]
[QUOTE=sltungle;14168777]We ARE aliens, you close minded fuck! Go to any other place in the universe and use it as the 'standard' and we suddenly become the aliens.
Fuck, I shouldn't feed trolls but you lot piss me off so damn much.[/QUOTE]
No, we're not aliens until we find a form of intelligent extra-terrestrial species, and thus, we are humans and not aliens during the present. As I had initially stated, we will not find intelligent e.t's and thus, we will not be aliens - nor will we find aliens.
Ever get that shrinking feeling?
[i]ZAM![/i]
[img]http://www.filecram.com/files/909emot-downsrim.gif[/img]
OK but can you see my Spore creations on it?
[QUOTE=livelonger12;14175063]No, we're not aliens until we find a form of intelligent extra-terrestrial species, and thus, we are humans and not aliens during the present. As I had initially stated, we will not find intelligent e.t's and thus, we will not be aliens - nor will we find aliens.[/QUOTE]
ITT: Troll is a space-alien, trying to cover his tracks.
[QUOTE=NoDachi;14169009]It's highly unlikely that life is in our galaxy. It's too easy to detect, we're a very noisy planet.
Even if there was, there would be no tangible way to communicate, and space travel is purely science fiction, so there might as well be no alien life regardless, it won't affect us either way.[/QUOTE]
Most of the radiation we'd blast out would be seriously watered down amongst all of that interstellar noise (from stars and shit) wouldn't it?
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