Group: sci.physics
From: Erik Max Francis
Date: Thursday, February 28, 2008 1:03 AM
Subject: Re: A partial black hole?

Crown-Horned Snorkack wrote:

> On 26 veebr, 23:27, Erik Max Francis wrote:
>> Crown-Horned Snorkack wrote:
>>> Material captured along the equatorial plane naturally falls to
>>> singularity. But material falling along the axis cannot fall to
>>> singularity because of axial symmetry.
>>>> There is no internal structure,
>>> There is. The circular singularity and internal horizons to begin
>>> with.
>> You're talking about a Kerr black hole. I was talking about a
>> Schwarzschild black hole. Not that the Kerr geometry really changes
>> anything, since anything falling through the ring singularity _still_
>> experiences infinite blueshifting, so is still utterly destroyed.
>> You're nitpicking a point that is immaterial to the point that we are
>> making, which is this: If you fall inside the event horizon of a black
>> hole, you will be rapidly and utterly destroyed.
>>
> So, what does an observer approaching a Cauchy horizon see? Tidal
> forces stay finite!

We're not talking about Cauchy horizons, we're talking about event
horizons around black holes. And, psst, tidal forces stay finite around
event horizons, too. Hint: Even event horizons are one-way barriers,
not two-way barriers.

> Then what happens when the event horizon of a black hole enters
> ergosphere of another black hole?

You get one, larger, black hole, which all the particles within each
horizon end up destroyed in at its singularity (or near it, for
ring-shaped singularities).

--
Erik Max Francis && max@ && http://www./max/
San Jose, CA, USA && 37 18 N 121 57 W && AIM, Y!M erikmaxfrancis
You've got me wondering / If you know that I am wondering about you
-- India Arie