center of it all?????????

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tqnepark

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where is the center of it all?????? if the sun is the so called center of our universe, then where is the center of space itself??? i mean, reading an artice about hubble being able too see the fartherest things billions of light years away. but in what direction? and, how far is the fartherest thing in the oppisite direction?? are we considered the center of it all?? did everything start here then start moving away from us?? after all space is in every direction.. so in what direction is everything??
 
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tfwthom

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tqnepark

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if everything in the universe sees itself as the center then how can everything be moving away from us??? some of them would be moving towards us... here's another thought it is to my understanding that when ceryian stars or what likes die and explode after a set amount of time the expelled matter starts to move back toward where it once was.. if this is a true constsnt then what if the black matter that lies just beyond where we currently see the furtherest objects is the center and everthing is now collapsing back into the void??????????
 
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harmonicaman

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Every point in the universe observes the exact same relative perspective of themselves in relation to the rest of the universe. Every point sees itself as the oldest, most centralized, most distant from the point of origin, and the most rapidly expanding point in the universe.<br /><br />There are about 1,000 galaxies that are observed to be blue-shifted, or moving toward us -- the universe is not expanding at a perfectly uniform rate because the expansion of space and time must curve around all the mass ("m") and energy ("E") in the universe. We perceive this phenomenon as gravity.<br /><br />When a star explodes, the matter it expels cannot accelerate faster than the speed of light ("c"). No "m" can possess a perspective of moving faster than "c", which is the rate the universe is expanding (E=mc<sup>2</sup>).<br /><br />Every point in the universe also perceives itself at the very "Edge" of the universe; it's right there next to you at "c", but you can never reach it!<br /><br />Think of the whole universe as a singularity -- an infinitesimally small point of time and space. Even though time and space is continuously being created within this singularity, the attributes of the singularity still prevail within our infinitely expanding universe.<br />
 
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agnau

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Ask someone who is a proponent of the background microwave radiation having a direction to it.<br /><br />My personal opinion is that we are inside the event horizon of an exploded blackhole and the external universe is much larger and that no point in our perceived universe is the center of the full universe outside of this horizon.
 
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rfoshaug

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That's a very good analogy, crazyeddie. And it tells me that our 3-dimensional space is the "surface" of an expanding 4-dimensional "sphere". <div class="Discussion_UserSignature"> <p><font color="#ff9900">----------------------------------</font></p><p><font color="#ff9900">My minds have many opinions</font></p> </div>
 
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rfoshaug

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That also implies a couple of other ideas.<br /><br />That means that if you could travel extremely fast (a LOT faster than light) in any direction, you would eventually come back to Earth without having to change direction - by circumnavigating the Universe itself). But it would have to be fast, to avoid that the the "balloon" is expanding so fast that the distance to Earth around the sphere increases faster than you travel - in which case you'd never get back to Earth.<br /><br />It also implies that the universe is, in fact very finite. As the surface of the balloon is finite, the 3-dimensional volume of the universe is finite (although very large and growing every day).<br /><br />Maybe there are other universes/balloons out there, but these would be completely undetectable for us, since we can only see what's on the surface of our balloon, and not anywhere else - unless another balloon intersects our balloon. But if matter or light or information can't cross over to an intersecting balloon, we would never observe it.<br /><br />Using a 4th dimension for fast space travel may be impossible if we're constricted to the 3D "surface" of our sphere. If possible, it may still be impractical, as moving through the center of the balloon to get to the opposite side would still be an extremely long journey. And for short journeys (nearby galaxies - which are still quite a challenge) you would still have to travel practically the same distance (the distance from London to Paris won't get much shorter by going in a straight line cutting through the Earth).<br /><br /><br />Will the expansion of the balloon slow down or stop in the future? Will it collapse back towards itself? A retreating universe would be interesting to experience as all the light from all the stars in the universe would have a decreasing volume of space to be in. When the universe expands, the light produced by stars is spread out quite thin - while in a retreating universe the sky would get quite bright as all that <div class="Discussion_UserSignature"> <p><font color="#ff9900">----------------------------------</font></p><p><font color="#ff9900">My minds have many opinions</font></p> </div>
 
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