From: Josef 'Jupp' Schugt <jupp@...>
Date: 2005-02-07T06:41:53+09:00
Subject: Re: [OT] Physics of black holes (Was: RubyConf '05)

Eric Hodel wrote:
> On 04 Feb 2005, at 15:32, Josef 'Jupp' Schugt wrote:
>> 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?
> 
> There are hyperspace monsters living around the gravity wells. Go to 
> close and your ship gets eaten.

Superluminal speed ist nothing that requires a hyperspace. The relative 
speed of galaxies for example is known to exceed the speed of light. As 
long as the speed is a result of changing properties of space this need 
not violate GRT. A warp drive uses the same principle (theoretically it 
may be possible to build one, practically it is impossible).

Josef 'Jupp' Schugt