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 Be the first pioneers to continue the Astronomy Discussions at our new Astronomy meeting place...The Space and Astronomy Agora Re: Black Holes And Spaceships Forum List | Follow Ups | Post Message | Back to Thread Topics | In Response ToPosted by David Tate/">David Tate on January 31, 1998 03:11:43 UTC

: This has become a very interesting discussion.

: Any mass sufficient to create a black hole (within : a certain sphere), will collapse to a singularity : surrounded by an event horizon. That's because the : forces that are responsible for keep atomic particles : distinct from one another are overwhelmed by the : force of gravity and at that point there is nothing : to stop the matter within the EH from compressing : to a mathematical point (i.e. singularity)

: I agree that a massive black hole could have any g force at its : event horizon, and thus it's conceivable that a : spaceship could cross the EH of a super massive : black hole without noticing any unusual tidal : forces and such.

: However, let's suppose your spaceship is a photon. : It travels at the speed of light always. It never : slows down. However once inside the EH all light : rays bend around into the singularity. So this : spaceship/photon is doomed to end up colliding with : the singularity.

: Space is in effect defined by light rays. Wherever : light rays travel, that can be considered space. : Inside the EH light and in effect space converges : into the singularity.

Sorry to but in on as very interesting conversation, but I thought the EH was defined as the point where the escape velicity was that of the speed of light and it was the strength of the gravitional pull, it the G force that determined the escape velicity? If this is the case then the G force at the EH must always be the same?

If this is true then in order to escape the EH you must travel greater than the speed of light, not 10KPH.

Sorry if I am changing the subject I would be happy to start another discussion topic?