From: gabriele renzi <rff_rff@...>
Date: 2005-02-05T19:09:20+09:00
Subject: Re: [OT] Physics of black holes (Was: RubyConf '05)

Dick Davies ha scritto:
> * Josef 'Jupp' Schugt <jupp@gmx.de> [0232 23:32]:
> 
>>An often unanswered question in SciFi: Why does the Schwarzschild radius
>>mean a point of no return to space vessels that can fly faster than light?
> 
> 
> Ah, but these ships never travel faster than light, they always do some kind
> of 'warp' or 'wormhole' travel to bypass the speed limit...

  iirc, "pulse velocity" in star trek is up to 9.5 times faster than 
light (but they still use warps for bigger distance).
  Worth noting that the reason they can't escape from a black hole, in 
at least one episode, is they think of the event horizon as something 
"solid". Actually they do escape by finding some kind of "leak" in the 
event horizon :)