Not true
They leave a black hole because they're one of a particle antiparticle pair created near the event horizon. Ones goes in and the other goes out so it looks like the black hole is radiating. More so because the one which got away has real energy associated with it whereas the one which fell in has negative energy associated with it. So the net energy change for the black hole is negative.

Nothing to do with things travelling faster that light at all.

(Shippy has a phd in particle physics and hopes he's remembered all that correctly.)
(Shippy likes linebreaks and doesn't care what you think, Thu 22 Oct 2009, 13:55, 1 reply, 16 years ago)

That's more as I remember it
and is a better explanation of what I was trying to say up the page a bit.
( K2k6 has a proper job these days, Thu 22 Oct 2009, 14:09, Reply)