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Can gravity alone account for the webbed/strand/cosmic void structure of the universe

  1. Feb 17, 2012 #1
    when i see 3d images of the webbed shaped structure of the universe, such as clusters and strands, the strands meeting in superclusters, i cant get away from how identical this looks to a reduced dimension view of the upwelling of water after a wave crashes. the foam from the ocean, which you could regard as matter, goes with the flow away from the upwelling water and accumulates in rings where downwelling occurs, and where the strands and rings of foam meet up, there are the largest accumlations of foam in the largest downwelling areas. the foam accummulations in the downwelling zones seems apparently identical to the strands and rings and (in 3d, webs) of matter that are observed in the universe.

    so is it possible that empty space on a very large scale has a weakly repulsive force that forces matter in the universe to form rings of matter encircling these cosmic voids the same way upwelling pushes foam in ocean waves to form strands rings in downwelling zones which encircle the upwelling zones?

    also, is this possible repulsivity of empty space explain the weakness of gravity, because this effect only seems to appear in cosmic voids where there is an extreme volume of empty space, the effect being that the cosmic voids repel matter to the outskirts to form strands of galaxies and webbed rings surrounding the cosmic voids.

    also, could the weakness of gravity and the weakness of this supposed repulsive force of result in a zero sum? ie meaning gravity and empty space repulsivity cancel eachother out?

    also could this repulsivity of empty space account for the universes accelleration of expansion?

    im posting this picture to help with the visualization of upwelling and downwelling in water which causes divergence as well as convergence on the surface.

    http://www.redmap.org.au/uploads/image/upwelling-downwelling%20figure%20350.jpg
     
  2. jcsd
  3. Feb 18, 2012 #2

    Mentz114

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    Re: can gravity alone account for the webbed/strand/cosmic void structure of the univ

    Extract from the Wiki page on dark energy
    I don't know whether this fits what you are proposing I think the above scenario could fit the observed structure. Certainly, some degree of 'clumping' would happen with the clumps moving apart in the expansion flow.
     
  4. Feb 18, 2012 #3
    Re: can gravity alone account for the webbed/strand/cosmic void structure of the univ

    A similar thought occurred to me a while ago, but I was inspired more by the convection cells seen in a simmering pan of water or in pictures of the surface of the Sun. See http://en.wikipedia.org/wiki/Rayleigh–Bénard_convection . These cells self organise into a stable honeycomb pattern which is most clearly seen in the patterns left in the mud of a pond that has dried up. I too wondered if there was something upwelling in the voids of space and sinking in the borders of the voids giving rise to the strings and walls of stars and galaxies seen in the 3D organisation of space and if there was any connection to the expansion of space.
     
  5. Feb 18, 2012 #4

    atyy

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  6. Feb 18, 2012 #5
    Re: can gravity alone account for the webbed/strand/cosmic void structure of the univ

    There's a series of videos on youtube called "Sixty Symbols". In one, a physicist talks about the appearance of repeating patterns in nature, such as those formed by dried mud cracking. I don't recall the title or the other examples but I'm pretty sure he brings up the pattern of filaments in it.
     
  7. Feb 18, 2012 #6
    Re: can gravity alone account for the webbed/strand/cosmic void structure of the univ

    so in your view is there a weak repulsive force of empty space?
    because these voids only occur on a truly gigantic scale, it makes me feel that there must be a very weak repulsivity of massless space. otherwize i thinnk you would find voids on a smaller scale throughout the universe
     
  8. Feb 19, 2012 #7

    Mentz114

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    Re: can gravity alone account for the webbed/strand/cosmic void structure of the univ

    No, I don't hold the view that there is a weak repulsive force of empty space. It does not seem necessary to invoke such a thing to explain observations.

    Once a void exists it will inevitably grow larger because of the expansion flow.

    The paper and other link given by atyy above are a good starting point.
     
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