collapsed interstellar clouds

Discussion in 'Astronomy, Exobiology, & Cosmology' started by omarina, Feb 3, 2006.

  1. draqon Banned Banned

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  3. Anomalous Banned Banned

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    So the dust clouds have hydrogen and its waiting there to form stars intsead of voozingout in the open space. Give me a break freaks
     
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  5. draqon Banned Banned

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    First of all...u need a force in order for something to voozingout, as you have reluctantly said, into space.
    Second..."freaks" as you called them are Harvard phd's.

    And you are?...
     
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  7. Anomalous Banned Banned

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    //////////////// I am a genetic miracle
     
  8. draqon Banned Banned

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    we all are. Our actions are that which define us.
     
  9. Nova1021 Registered Senior Member

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    Good question. As far as I know, the only people who claim to have an explanation are string/M-theorists. I don't know about the details of their theory, but there is the claim that the big bang occurred due to the collision of two many-dimensional (they keep changing the number of dimensions that the theory seems to predict/require) membranes. So, maybe they have an answer, but they have to prove the validity of their theory first.

    I think that's what they're talking about with these "membranes" colliding. I'm as confused as you are about where these membranes are that are colliding though. I get the impression that the fluctuations or collisions they're talking about are not physical processes at all, in any normal sense of the word, and are more like the result of the theorists saying "ok, we have these mathematical constructs called membranes, what happens if they somehow intersect?"
     
  10. Nova1021 Registered Senior Member

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    Dust clouds are normally in equilibrium in space: the random motions of their particles (temperature) tries to press outward, and gravity tries to pull inward. This sets up stable masses of gas and dust in space. Then what happens if you perturb the blob? Maybe a supernova shockwave hits the cloud? All of a sudden the inward pressure is greater than the outward pressure and it begins to collapse. As it collapses, gravity gets stronger (remember it is inversely proportional to distance squared), so you get a runaway collapse.

    Not freaks. This is all classical physics: thermodynamics and newtonian gravitation. It's been known for centuries.
     
  11. draqon Banned Banned

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    you couldn't have said it better....
     

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