| how is the universe expanding?
Posted: 5/1/2009 3:46:42 PM | | there can only be existence! the only other option is non-existence, and non-existence doesn't exist. So what is the universe expanding into? The only thing existence can be broken by is non-existence, and again, non-existence doesn't exist! So the universe cant expand, cause theres only ONE existence and its infinite. So how is the universe expanding? | |
|
| how is the universe expanding?
Posted: 5/1/2009 4:04:31 PM | | It is expanding because large chunks of it appear to be moving apart creating more space between them. | |
|
| how is the universe expanding?
Posted: 5/1/2009 4:10:41 PM | | but those chunks can only move into what already exist. So how is that expansion if it was already there? | |
|
| how is the universe expanding?
Posted: 5/1/2009 4:37:16 PM | medik, the universe is expanding. And it's not just the material in the universe, it's spacetime as well. That's an observed and observable fact.
howevever, that does not mean that there were no preconditions to the Big Bang, nor does it mean there isn't something for this universe to expand into. It's simply something that we don't have enough information to discern. Whatever exists "beyond" our universe is too far from our observational horizon to see and we don't know how preconditions might have imprinted themselves onto the fabric of our current spacetime. | |
|
| how is the universe expanding?
Posted: 5/1/2009 7:40:41 PM | | Everything is like it's own life form... It is born, it grows or divides, it consumes energy to create new forms of energy. As the pattern goes, it dies, and from it's ashes shall spring form new universes. | |
|
| |
| how is the universe expanding?
Posted: 5/1/2009 8:02:23 PM | It's difficult to explain.
However, black holes and white holes work as a filtering device that recycles everything. OUR universe is expanding, but there are multiple universes. When we get an increase in blackholes, our universe will shrink and eventually die. | |
|
| how is the universe expanding?
Posted: 5/1/2009 8:30:16 PM | just because things are floating around in space means that the universe is expanding?
seems more like a theory then a fact to me. did scientist actually go to the edge of the universe and take measurements? | |
|
| how is the universe expanding?
Posted: 5/1/2009 9:04:23 PM | Every element, when stimulated, gives off a characteristic light pattern. Thus, when a star burns hydrogen, viewing the light through a prism will reveal bands of different colored light, and characteristic dark bands. Those bands will always be in the same relative positions.
When light from distant galaxies is viewed, it generally appears more red, but has the same banding. We know what color the bands are supposed to be from a stationary light source. If light travels towards us while the source moves away from us, it becomes "red-shifted". The red-shift of distant galaxies shows they are moving away. This is the Doppler effect, like you would hear from any passing object, the most obvious examples being a car horn or the whine of a race car or motorcycle changing pitch as they pass. | |
|
| how is the universe expanding?
Posted: 5/1/2009 10:01:09 PM |
and non-existence doesn't exist.
So how to black holes (in space, that is), dark stars, and the current Congress exist? | |
|
| how is the universe expanding?
Posted: 5/1/2009 10:10:13 PM | Is because empty space has no imagination and is prone to depression.
Interference, although annoying, bides energy more time before becoming chums with the big golden goose egg.
I have no idea why I said that.  | |
|
| how is the universe expanding?
Posted: 5/1/2009 10:41:04 PM |
However, black holes and white holes work as a filtering device that recycles everything. We don't even know if white holes exist or are possibly. Physicists right now believe the universe is headed for a heat death and will never collapse in on itself because the speed the galaxies are drifting away from each other may actually be increasing and the universe is more flat as opposed to curved. That being said there is a new theory, which I completely agree with, that states that different sectiosn of the universe have actually been decelerating at different rates which would make the difference of the red shift between galaxies farther away and those in closer as understandable. | |
|
| how is the universe expanding?
Posted: 5/1/2009 10:43:05 PM |
just because things are floating around in space means that the universe is expanding? No. The red shift of the galaxies, the Microwave Background Radiation and a few other studies have shown the universe to have had a common origin and expanded outward. | |
|
| how is the universe expanding?
Posted: 5/1/2009 10:44:18 PM | | Our universe started with a big bang (theoretically). What if our universe is just infinitely small material compacted in an even LARGER universe waiting for its own big bang? When our universe expands to it's limits --- BOOM!!! (Or should I say BANG!!!), another, larger universe is born? Sorry, tired, thinking VERY outside the box. | |
|
| how is the universe expanding?
Posted: 5/1/2009 10:49:07 PM | hey frog0
that still doesnt prove beyond a reasonable doubt that the universe is expanding. its still just a theory as far as im concerned. we are talking about space here. things float around. they move in all directions. once an object in space starts moving in a direction, only another force can change that direction. im sure there are millions of objects (planets, stars, asteroids, comets, etc...) in space moving towards us, away from us, above us, below us, parallel to us, perpendicular to us, but none of that proves that the universe is expanding.
the only thing "red-shifting" proves is that that particular object that they looked at was moving away from us. it hardly proves that the universe is expanding.
i personally think the universe is infinite. | |
|
| |
| how is the universe expanding?
Posted: 5/1/2009 11:00:02 PM | i think you guys are mixing up the actual universe with objects within the universe. using whatever method scientist use to measure objects within the universe doesnt actually prove that the universe itself is expanding.
and when i say objects, i mean stars, planets, asteroids, comets, galaxies, black holes, etc... whatever....
they are all objects WITHIN the universe. | |
|
| how is the universe expanding?
Posted: 5/1/2009 11:07:34 PM | thats funny bumfluff because there is a topic in this very forum on the first page that talks about a planet moving towards us
and once again, just because an object in space is moving away from us doesnt mean that the universe itself is expanding.
if everything is moving away from us, wouldnt that make us the center of the universe? i thought it was already proven that we werent in the center of the universe.
and if everything is moving away from us, why arent we moving aswell? if everything exploded from a single point and expanded outward, why are we sitting still watching "everything" move away from us.
none of that proves that the actual universe is expanding. | |
|
| how is the universe expanding?
Posted: 5/1/2009 11:16:10 PM | By planet do you mean galaxy? Yeah it's in the local group of galaxies. Our local group fo galaxies is counted as a whole region when talking about the universe expanding. And no it wouldn't mean that we are the center of the universe. Take a non blown balloon and draw 2 dots on it. They are fairly close together. Now blow up the balloon. Even though both points on the balloon are being blown out they are still both moving away from each other.
I don't know how to add pictures to this forum so I'll just post a link to it.
http://www.pas.rochester.edu/~afrank/A105/LectureXVI/FG26_005.JPG
That picture shows what happens when a balloon expands.
Earth is moving around the Sun at about 67,000 miles per hour as well as rotating and our whole solar system is moving around the center of our galaxy as well. Can you feel any of that happen? We aren't just standing still. We are always moving. | |
|
| how is the universe expanding?
Posted: 5/1/2009 11:22:43 PM | I think we are all talking about the same thing MikeB1982. We are just getting communication barriers thrown around from what words mean to us.
The universe is expanding. There is an accelerating expansion of space.
Say you had string that represented information. That string could be bundled up very tight, by subjecting it to complicated forms of interference(information redirection) that allow the string to exist in a greater spectrum of states beyond spatial dimensions. You could make it very compact, but when you throw that bundle of string into outer space, it begins to unravel towards an existence that occupies fewer state spectrums, but now more space. It is still the same amount of information, but it is expanding spatially.
I don't know if I'm wording that all right or not.
Its like the double slit experiment. The photon, when not being measured, is no longer capable of using the state spectrums that allow it to exist as a spatially compact particle. It requires a helping hand to do that. :O | |
|
| how is the universe expanding?
Posted: 5/1/2009 11:33:54 PM | The expansion stems from the universe being pregnant, and will soon - relatively speaking - become fickle and mercurial in temperament....
To avoid massive and unparalleled destabilization, we must at all times think good thoughts and make no disparaging remarks regarding her delicate condition... | |
|
| how is the universe expanding?
Posted: 5/2/2009 12:04:37 AM | i remember watching something on tv awhile back and my memory is very fuzzy but i specifically remember them talking about two galaxies that were crashing into each other. im not sure if it was about our galaxy and another galaxy or just two seperate galaxies altogether but its definately happening. they even made CGI video of what it might look like having two galaxies crashing into each other.
now if there is evidence of two galaxies crashing into each other, how does that fit into the whole "the universe is expanding and everything is moving away"?
im about to do a google search on it because that goes against everything in this topic. | |
|
| how is the universe expanding?
Posted: 5/2/2009 12:08:05 AM | | and if the universe is expanding, shouldnt that mean that there is actually an end to the universe somewhere out there? | |
|
| how is the universe expanding?
Posted: 5/2/2009 12:12:47 AM | | yes. Our galaxy will crash into the Andromeda galaxy in about 3 billion years. But it is part of the local group of galaxies and are being pulled towards each other via their gravitation. Eventually they will form one galaxy. | |
|
| how is the universe expanding?
Posted: 5/2/2009 12:15:37 AM | It is both expanding and compressing in ways.
From spatial expansion in the universe, to information compression in your head.
Pick a side and maybe you'll find you are riding the craziest strange loop ever.
I really don't know. But it should be thought of as exciting rather than vexing. | |
|
Home
login 
