Re: Light inside a black hole?

Dear George Dishman:

"George Dishman" <george@xxxxxxxxxxxxxxxxx> wrote in message
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"dlzc" <dlzc1@xxxxxxx> wrote in message
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Dear Jeff Root:

Jeff Root wrote:
....
My understanding of a black hole event horizon is
that its location depends on the location and
motion of the observer.

Agreed. Just like a horizon moves away from you
as you move towards it.

David, that is one reason why I have doubts about the
physicality of the transposition of space and time
coordinates.

George, the physicality of length contraction and time dilation
in SR can never be answered. I don't expect this to be any
simpler.

The other is that I suspect any real BH
must have a non-zero angular momentum and in the
Kerr solution the coordinates revert before the
singularity.

You are on pretty solid ground there. Seems there was a post
here just a couple of days ago that pulsars got their spin not
from conservation of angular momentum (with "pre-formation
momentum"), but from shedding their outer layers... if BHs were
formed in some sort of "shock wave" in dense matter...

David A. Smith


.

Relevant Pages

  • Re: Light inside a black hole?
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  • Re: Light inside a black hole?
    ... George Dishman wrote: ... the physicality of length contraction and time ... In what way David? ... from conservation of angular momentum (with "pre-formation ...
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