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Physics, Astronomy & Cosmology / Is Time and Change the same phenomenon?

« on: 06/06/2009 20:08:50 »

To me it seems impossible to have change without the concept of time and vice versa. If you had a volume of space in which nothing changed, would time still flow? If it did, it seems time would have no meaning. If time was still flowing at the normal rate, could we tell in which direction it was flowing (i.e. forward or backward)? I certainly cannot imagine change happening without time, could time flow without change? Can anyone offer a thought experiment that might shed some light on this question?

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Physics, Astronomy & Cosmology / Are We Living Inside of a Black Hole ?

« on: 07/04/2009 03:25:37 »

Allthough I've read we know little about what goes on inside of black holes, is it possible that the Universe exists inside one? If we were, how might we know?