Thread: Black Holes
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Old 22-01-2010, 10:13 AM
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sjastro
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Quote:
Originally Posted by shane.mcneil View Post
Thanks for your comments everyone. May I ask another question to see if I have understood things? I read that the reason you cannot escape from a black hole is not because you can't go fast enough but because spacetime curves so much that the only direction you can go in is towards the black hole. Beyond the event horizon that is. Is that right?

Thanks

Shane
If an object inside the event horizon emitted an electromagnetic signal before it is (presumedly) destroyed by tidal forces, the signal will travel along a geodesic path. This is simply the shortest distance between 2 points. Space-time is so curved the geodesic path always curves back towards the BH and never breaks out of the event horizon.

Regards

Steven
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