Notices
Results 1 to 10 of 10

Thread: THE BIG BANG?

  1. #1 THE BIG BANG? 
    Forum Freshman ADAMA's Avatar
    Join Date
    Apr 2009
    Posts
    19
    All I know is that one atem heated up then created the big bang or something like that


    Reply With Quote  
     

  2.  
     

  3. #2  
    Universal Mind John Galt's Avatar
    Join Date
    Jul 2005
    Posts
    14,168
    The universe appears to be expanding. If we reverse that expansion in our minds then we can imagine a time when all matter in the universe was concentrated in a single point. Physicists and cosmologists have worked out what the characteristics of this singularity must have been at a tiny fraction of a second after the 'beginning'.

    The Big Bang is not an explosion in the conventional sense. At the point of the Big Bang, space and time began, and it is space which is expanding.

    Does that help?


    Reply With Quote  
     

  4. #3  
    Forum Freshman
    Join Date
    Apr 2009
    Posts
    74
    Quote Originally Posted by John Galt
    The universe appears to be expanding. If we reverse that expansion in our minds then we can imagine a time when all matter in the universe was concentrated in a single point. Physicists and cosmologists have worked out what the characteristics of this singularity must have been at a tiny fraction of a second after the 'beginning'.

    The Big Bang is not an explosion in the conventional sense. At the point of the Big Bang, space and time began, and it is space which is expanding.

    Does that help?
    when the big bang happened was all the matter in the universe created at the same time?
    Reply With Quote  
     

  5. #4  
    Universal Mind John Galt's Avatar
    Join Date
    Jul 2005
    Posts
    14,168
    That is the current view. In the initial stages the temperature of the 'fireball' was so high that matter could not prermanently exist. As it cooled through expansion the fundamental particles of matter began to condense. The four fundamental forces began to separate, one from another. After further cooling 'conventional' particles like protons and neutrons could form.

    You will understand that this is a very simple explanation of a very complex process. The details of the process have taken many great scientists over half a century to work out. Explaining it in a couple of sentences, without mathematics does not do their work justice.
    Reply With Quote  
     

  6. #5  
    Forum Freshman
    Join Date
    Apr 2009
    Posts
    74
    I just wondered because i don't understand whyall that matter in a small place didn't just make a big black hole
    Reply With Quote  
     

  7. #6  
    Moderator Moderator Dishmaster's Avatar
    Join Date
    Apr 2008
    Location
    Heidelberg, Germany
    Posts
    1,624
    Quote Originally Posted by Home200
    I just wondered because i don't understand whyall that matter in a small place didn't just make a big black hole
    This is, where our current knowledge on physics is insufficient. You are talking about a phenomenon that must include both a theory similar to General Relativity and Quantum Mechanics or Quantum Gravity. Such a theory does not exist. So, we cannot really answer the question yet.
    Reply With Quote  
     

  8. #7 Re: THE BIG BANG? 
    Suspended
    Join Date
    May 2008
    Posts
    1,096
    Quote Originally Posted by ADAMA
    All I know is that one atem heated up then created the big bang or something like that

    The idea is that originally everything in the universe was contained in an area smaller than an atom, then by magic this inflated to about the size of a cricket ball and suddenly with more magic, it slowed down and continued expanding.

    I use the word 'magic' because as even most children know, if enough material is compacted, it forms a black hole and nothing escapes a black hole, and the singularity (unproven, like inflation) was untold trillions of trillions of times as dense as what was needed for a black hole. Real world: The big bang cannot have happened because if singularities existed, they would be ultimately stable.
    Reply With Quote  
     

  9. #8 Re: THE BIG BANG? 
    Universal Mind John Galt's Avatar
    Join Date
    Jul 2005
    Posts
    14,168
    Quote Originally Posted by Cyberia
    Real world: The big bang cannot have happened because if singularities existed, they would be ultimately stable.
    Adama, Cyberia is experessing an opinion that is at odds with the consensus view of cosmologists and physicists. He may be right, but those in the know think he's wrong.
    Reply With Quote  
     

  10. #9  
    Moderator Moderator Dishmaster's Avatar
    Join Date
    Apr 2008
    Location
    Heidelberg, Germany
    Posts
    1,624
    Moderator mode:
    Thanks, John, for pointing this out.

    Cyberia, would you please indicate that your views contradict with the common teachings on the subject. It is almost impossible for novices on this field to figure it out themselves. I don't mind discussing alternative theories, but I would appreciate that this is either done in dedicated threads or highlighted by a clear remark in the individual post.

    Thank you for your understanding.
    Dishmaster (Moderator)
    Reply With Quote  
     

  11. #10  
    Forum Professor
    Join Date
    Nov 2007
    Posts
    1,114
    To All:

    See my new post on a Flat Space universe.

    Cosmo
    Reply With Quote  
     

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
  •