Notices
Results 1 to 7 of 7

Thread: The infinitely expanding Universe..?

  1. #1 The infinitely expanding Universe..? 
    Forum Freshman
    Join Date
    Mar 2014
    Posts
    44
    I'm no expert in this matter, and just happened to think about this.
    If the Universe is expanding infinitely, what will there be at the "end point" of the Universe?
    The atoms and everything the atom forms are just being pulled further and further away, right?
    So theoretically, we are being pulled apart right now, aren't we?


    I'm not even sure if I think I know what I'm trying to say.


    Reply With Quote  
     

  2.  
     

  3. #2  
    Forum Professor Daecon's Avatar
    Join Date
    Jul 2013
    Location
    New Zealand
    Posts
    1,288
    One theory states that if you go far enough in a straight line, you'll eventually end up back where you started. The Universe is thought to loop back around upon itself, and it's just the empty space inbetween the galaxies and the clusters that is expanding.


    Reply With Quote  
     

  4. #3  
    Forum Freshman
    Join Date
    Mar 2014
    Posts
    44
    Quote Originally Posted by Daecon View Post
    One theory states that if you go far enough in a straight line, you'll eventually end up back where you started. The Universe is thought to loop back around upon itself, and it's just the empty space inbetween the galaxies and the clusters that is expanding.
    That sounds interesting. But my mind isn't strong enough to process how that would work.
    Reply With Quote  
     

  5. #4  
    Forum Professor Daecon's Avatar
    Join Date
    Jul 2013
    Location
    New Zealand
    Posts
    1,288
    The balloon analogy is one way to demonstrate this, if you draw dots on a balloon and blow it up, the dots get further away from each other, yet you can draw a line from one dot all the way around the balloon's surface and end up back at the oringial dot.

    Of if you ever played a computer game like Asteroids, where you fly off one side of the screen only to reappear on the other side of the screen like nothing ever happened.
    Reply With Quote  
     

  6. #5  
    Forum Freshman
    Join Date
    Mar 2014
    Posts
    44
    I can imagine how that would work in a game, and also the balloon theory, but the Universe isn't a flat surface like the surface of the balloon, is it? It could be a spherical shape, maybe a little squashed at some sides, like a balloon, but how would it work if you had the line pierce into the balloon? Or even away from the balloon?
    Reply With Quote  
     

  7. #6  
    Moderator Moderator Markus Hanke's Avatar
    Join Date
    Nov 2011
    Location
    Ireland
    Posts
    7,302
    Quote Originally Posted by EugeneT View Post
    I can imagine how that would work in a game, and also the balloon theory, but the Universe isn't a flat surface like the surface of the balloon, is it? It could be a spherical shape, maybe a little squashed at some sides, like a balloon, but how would it work if you had the line pierce into the balloon? Or even away from the balloon?
    It needs to be noted that the analogy is restricted to the surface of the balloon, which represents the universe; that's why it is strictly an analogy, with given limitations. Also, the surface of a balloon is not flat.
    Reply With Quote  
     

  8. #7  
    Suspended
    Join Date
    Mar 2014
    Location
    Monterey
    Posts
    614
    Quote Originally Posted by EugeneT View Post
    I'm no expert in this matter, and just happened to think about this.
    If the Universe is expanding infinitely, what will there be at the "end point" of the Universe?
    The atoms and everything the atom forms are just being pulled further and further away, right?
    So theoretically, we are being pulled apart right now, aren't we?
    Actually the rate that the universe is accelerating at will take hundreds of trillions or even quadrillions (reckoned in the shorter, American way) of years before the universal expansion affects local structures. When it does it will make a Big Rip. But until then it won't make much difference; it's exponential, so most of it won't happen until the last second of that hundreds of trillions of years.

    Quote Originally Posted by EugeneT View Post
    I'm not even sure if I think I know what I'm trying to say.
    You're reaching beyond what we know and trying to understand what we think we know that's beyond what we know.

    Don't worry it's good for your mind. Keep doing it.
    Reply With Quote  
     

Similar Threads

  1. Expanding Universe
    By griffithsuk in forum Astronomy & Cosmology
    Replies: 33
    Last Post: May 25th, 2011, 12:44 PM
  2. Expanding Universe?
    By Paul D in forum Astronomy & Cosmology
    Replies: 5
    Last Post: January 12th, 2009, 08:19 AM
  3. The Universe Expanding
    By agent1022 in forum Physics
    Replies: 11
    Last Post: January 7th, 2009, 05:48 PM
  4. The expanding universe
    By JerryG38 in forum Astronomy & Cosmology
    Replies: 9
    Last Post: July 8th, 2008, 01:59 AM
  5. Expanding Universe
    By Joshua Violinist in forum Astronomy & Cosmology
    Replies: 14
    Last Post: May 16th, 2006, 05:44 PM
Bookmarks
Bookmarks
Posting Permissions
  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •