Re: The Black Fishing Hole


by Greg Egan
Tags: black, fishing, hole
Greg Egan
#1
Feb19-07, 05:00 AM
P: n/a
Here's a little movie of a hyperelastic string being unreeled through a
horizon (I've used a Rindler horizon, but a large black hole would be
more or less the same):

http://gregegan.customer.netspace.ne...nreelMovie.gif

Full details are at:

http://gregegan.customer.netspace.ne...lerHorizon.htm
l#UNREELING

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Ian Parker
#2
Feb21-07, 05:00 AM
P: n/a
This seems very similar to the paradoxes in Special Relativity. If we
take the rod falling into a hole (old as the hills) we can see that
the paradox is resolved since information about the hole cannot travel
along the rod at > c.

In a hyperelastic string the speed of sound (or vibrations travelling
up and down) > c. It must be if you are going to stick a rod through
an event horizon.

All the materials we are familiar with get their properties through
the EM force and quantum electrodynamics. This cannot operate through
an EH for obvious reasons.

- Ian Parker

Greg Egan
#3
Feb21-07, 05:00 AM
P: n/a
On Feb 19, 5:54 am, Greg Egan <grege...@netspace.net.au> wrote:
> Here's a little movie of a hyperelastic string being unreeled through a
> horizon (I've used a Rindler horizon, but a large black hole would be
> more or less the same):
>
> http://gregegan.customer.netspace.ne...nreelMovie.gif
>
> Full details are at:
>
> http://gregegan.customer.netspace.ne...r/RindlerHoriz...
> l#UNREELING


Some newsreaders, including Google news, seem to have mangled the
second URL, so with the moderators' permission I'll repeat it, split
over two lines:

gregegan.customer.netspace.net.au/SCIENCE/Rindler/
RindlerHorizon.html#UNREELING



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