: sigidunum@[EMAIL PROTECTED]
Well, this leads to another Stupid Black Hole Question:
: If we assume antigravity is possible, that implies we could get out of
: an event horizon. Does this mean that, in certain extreme
: cir***stances, antigravity would be equivalent to time travel?
Depends what you mean by "antigravivty", and how it fits into the current
picture. If antigravity is just a force that opposes gravity, then no,
you can't escape the event horizon in the first place. If it's some
method
off bending spacetimem so the geodesic points in a different direction
(and hence, objects "fall" in a different direction, then possibly so.
And since crossing an event horizon in the "wrong direction" *IS* time
travel, then yes, it's equivalent to time travel.
Or put another way, at an event horizon, time is bent to "point towards"
the singularity. So, to move away fromm the singularity is time travel.
And the whole point (or at least a large large part of the point) of
relativity is that there's no "space", and no "time" as you'd normally
think of it, there's only "spacetime" (which has timelike and spacelike
directions in it).
"There is no Dana. There is only Zul." --- The Gatekeeper
Wayne Throop throopw@[EMAIL PROTECTED]
http://sheol.org/throopw
|
