Results 1 to 5 of 5
  1. #1

    Join Date
    Aug 2007
    Location
    Rotterdam,NY & Moneta, VA
    Posts
    1,617
    +1
    1

    is our universe unique?

    this is a pretty cool article. although its plain English the concepts seem to be a little beyond my understanding but still a good read. what do you guys think?

    http://news.yahoo.com/s/space/200809...ntcosmicbubble


  2. #2
    Like a chimp with a ball-peen hammer smackwave's Avatar
    Join Date
    Dec 2005
    Location
    Annapolis, MD
    Posts
    621
    +1
    22
    Quote Originally Posted by stingray152003 View Post
    this is a pretty cool article. although its plain English the concepts seem to be a little beyond my understanding but still a good read. what do you guys think?

    http://news.yahoo.com/s/space/200809...ntcosmicbubble
    The concept isn't as lofty as the article makes it out to be. There's a basic premise that matter is somewhat evenly distributed throughout the universe. However, we already know that there are massive concentrations of matter, such the colliding super clusters of galaxies in the bullet nebula that are being used to study dark matter. What the article is proposing is that it's possible that the viewable universe is sparsely populated in relation to the rest of the universe - which while not an incredible probably premise (we can actually see a statistically significant portion the universe) is a possibility. If this were the case, then the revelation that very, very distant Type 1a supernovas are dimmer than expected can be explained by denser concentrations of matter interfering (both in the mundane and relativistic sense), rather than a mysterious (AKA exotic) force causing the expansion of the universe to accelerate.

  3. #3

    Join Date
    Aug 2007
    Location
    Rotterdam,NY & Moneta, VA
    Posts
    1,617
    +1
    1
    Quote Originally Posted by smackwave View Post
    The concept isn't as lofty as the article makes it out to be. There's a basic premise that matter is somewhat evenly distributed throughout the universe. However, we already know that there are massive concentrations of matter, such the colliding super clusters of galaxies in the bullet nebula that are being used to study dark matter. What the article is proposing is that it's possible that the viewable universe is sparsely populated in relation to the rest of the universe - which while not an incredible probably premise (we can actually see a statistically significant portion the universe) is a possibility. If this were the case, then the revelation that very, very distant Type 1a supernovas are dimmer than expected can be explained by denser concentrations of matter interfering (both in the mundane and relativistic sense), rather than a mysterious (AKA exotic) force causing the expansion of the universe to accelerate.
    ae they trying to say things might be closer to us then we actually perceive them to be though becuase of this bubble? also are they saying there may be more out there then were seeing becuase of this that the light isnt traveling far enogh so we don't see it?

  4. #4
    YoYamma's Avatar
    Join Date
    Aug 2006
    Location
    Central Florida
    Posts
    21,567
    +1
    4,784
    Scientists suggesting that "Earth may be trapped in an abnormal bubble of space-time that is particularly void of matter..."

    A bubble... that is very interesting.
    I have often wondered about these passages...

    Isaiah 34:4
    All the stars of the heavens will be dissolved and the sky rolled up like a scroll; all the starry host will fall like withered leaves from the vine, like shriveled figs from the fig tree.

    Revelation 6:14
    The sky receded like a scroll, rolling up, and every mountain and island was removed from its place.


  5. #5
    Like a chimp with a ball-peen hammer smackwave's Avatar
    Join Date
    Dec 2005
    Location
    Annapolis, MD
    Posts
    621
    +1
    22
    Quote Originally Posted by stingray152003 View Post
    ae they trying to say things might be closer to us then we actually perceive them to be though becuase of this bubble? also are they saying there may be more out there then were seeing becuase of this that the light isnt traveling far enogh so we don't see it?
    Not necessarily closer to us, but not accelerating away from us as fast as the existing model states. And yes, it is likely that if our visible portion of the universe is relatively sparsely populated then there's bound to be more out there than we expect - we would have to scale up estimates because the ratio of visible objects to obscured objects would go down.

    Don't think of the "bubble" as anything with physical properties of its own. Think of the universe as analogous to the type of sponge you wash your car with - basically empty space (bubbles) held together with strands of material. If you cut up the sponge into small, equal sized portions you can estimate the density and weight of the sponge using a single piece. Now, imagine you just happened to luck out and the sample you used had a massive bubble in it, and very little material. If you used that to estimate the density and weight of the sponge your estimate would be pretty far off. What this theory is proposing is the we, and our viewable sphere of the universe, are possibly inside such a large bubble of (relatively) empty space.

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. Genesis 1200 carb, is my problem unique
    By caleou1 in forum Polaris Open Discussion
    Replies: 3
    Last Post: 07-17-2012, 04:32 PM
  2. where is our planet earth?
    By XRIDER in forum Open Discussion
    Replies: 0
    Last Post: 04-07-2009, 06:14 AM
  3. Where is our fuel filter located?
    By john07ex in forum Kawasaki PWC Performance (4-stroke)
    Replies: 10
    Last Post: 04-28-2008, 11:35 PM
  4. Is our key water proof?
    By juiced414 in forum Kawasaki PWC Performance (4-stroke)
    Replies: 1
    Last Post: 08-03-2007, 08:55 AM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •