Skip to main content

View Diary: Open Science Thread: Smackdown Edition (222 comments)

Comment Preferences

  •  While that's not me (1+ / 0-)
    Recommended by:

    its the other guy in the parallel universe that bumped into us last week, people have been thinking about the children of universes in the context of singularities and white holes for some time.

    The idea is that if there are black holes sucking up all the matter and energy that enters their event horizons, there may be white holes spewing it forth through something called the Einstein-Rosen bridge.

    While this idea has been around since before the acid wars of the sixties, its the work on M branes that is bringing it back into focus.

    The complete Schwarzschild geometry consists of a black hole, a white hole, and two Universes connected at their horizons by a wormhole. The name "black hole" was invented in 1968 by John Archibald Wheeler. Before Wheeler, these objects were often referred to as ‘black stars’[7] or ‘frozen stars’.

    It was Austrian Ludwig Flamm who had realised that Schwarzschild's solution (called the Schwarzschild Metric) to Einstein's equations actually describes a wormhole connecting two regions of flat space-time; two universes, or two parts of the same universe.

    A white hole (from the negative square root solution inside the horizon) is a black hole running backwards in time. Just as black holes swallow things irretrievably, so white holes spit them out. However white holes cannot exist, since they violate the second law of thermodynamics[8].

    General Relativity is time symmetric. It does not know about the second law of thermodynamics, and it does not know about which way cause and effect go. However we do. The negative square root solution outside the horizon represents another Universe. The wormhole joining the two separate Universes is known as the Einstein-Rosen Bridge.

    Live Free or Die (-8.88 -9.49) IMPEACH THEN TRY FOR WAR CRIMES

    by rktect on Sat Nov 18, 2006 at 10:30:34 AM PST

    [ Parent ]

Subscribe or Donate to support Daily Kos.

Click here for the mobile view of the site