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Jul4-09, 06:37 PM
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DrGreg's Avatar
P: 1,849
Welcome to the forum!

I will just answer the following question and leave the rest to others.

Quote Quote by John.G.Cleary View Post
1. I am falling feet first into a black hole. An external observer will never see me fall past the event horizon. However, in my frame of reference I will fall past it in finite time. Puzzlingly I can never see my feet fall past the event horizon either because if I could, I could relay this from my head mounted web-cam (which is not yet past the event horizon) to an external observer.
You won't notice anything unusual; you can see your feet as normal.

Your mistake is the bit I have emboldened. By the time the light from your feet crossing the horizon has reached your eyes, your eyes are already crossing the event horizon themselves, so now it's too late to send a signal out!