On 26 January 2014 07:25, Richard Ruquist <[email protected]> wrote: > > At least for a spherically symmetric black hole, the GR solution indicates > that the time dimension becomes the radial dimension of the black hole. > Thus time vanishes inside the event horizon of a spherical black hole. >
If time becomes the radial dimension, it doesn't vanish inside the event horizon. It vanishes at the singularity, which is to say the signularity acts as a future "big crunch" to anything that falls in; the BH is like a collapsing universe. (I've used this to illustrate that future constraints can act as boundary conditions on the behaviour of macroscopic objects, by the way, when discussing time symmetry in physics :) -- You received this message because you are subscribed to the Google Groups "Everything List" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/everything-list. For more options, visit https://groups.google.com/groups/opt_out.
