Results 1 to 3 of 3

Thread: Space expansion

  1. #1 Space expansion 
    Forum Freshman
    Join Date
    Oct 2008
    If an Alcubierre drive is possible..

    Let's say there is point a and point b that are one
    lightyear apart. Would there be

    A: A limit to how fast the space between a and b could
    the warping of space can go no faster than c. But after the
    contraction of space the ship could cross from a to b faster than
    light for an unaltered distance.

    Basically it would take as long or longer to construct the path than it would to simply cross the distance.

    or B: No limit

    is there a limit to the speed at which a universe (and/or space) can expand or contract in size?

    Reply With Quote  


  3. #2  
    Forum Sophomore
    Join Date
    May 2008
    I don't know if there is a limit to how fast space can expand, but if there is one, it is not c. The universe is roughly 13.7 billion years old, but over 90 billion light years in diameter.

    An interesting question is that of how you would measure the rate of expansion. I don't know if it would make sense to give it in m/s anyway.

    Reply With Quote  

  4. #3  
    Forum Radioactive Isotope MagiMaster's Avatar
    Join Date
    Jul 2006
    I think any measure of changes in space would have to have units of something like meters per meter per second, which just works out to hertz. This is just a wild guess though, so don't take that thought too seriously.
    Reply With Quote  

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