Re: water inside a black hole

"N:dlzc D:aol T:com \(dlzc\)" <N: dlzc1 D:cox T:net@xxxxxxxxxx> wrote in
ebjBe.29617$Qo.6871@fed1read01:">news:ebjBe.29617$Qo.6871@fed1read01:

> Dear bz:
>
> "bz" <bz+nanae@xxxxxxxxxxxxxxxxxxxx> wrote in message
> news:Xns96926ADC9FE1EWQAHBGMXSZHVspammote@xxxxxxxxxxxxxxxxx
>> "N:dlzc D:aol T:com \(dlzc\)" <N: dlzc1 D:cox T:net@xxxxxxxxxx>
>> wrote in
>> eD8Be.29527$Qo.27260@fed1read01:">news:eD8Be.29527$Qo.27260@fed1read01:
> ...
>>> 2) the thermodynamic properties solid-liquid-gas of any
>>> substance are undefined with "very high" temperature
>>> and pressure, and this is assuming that temperature is
>>> not high enough to strip electrons out of orbitals to
>>> make plasma (because then you wouldn't have water).
>>> The amount of sold vs. liquid vs. gas can not be
>>> detemined by temperature and pressure measurement
>>> alone. The nice solid/liquid and liquid/gas lines stop.
>>
>> Neutron stars are not dense enough to be black holes.
>> Wouldn't anything inside a black hole necessarily be
>> denser than a neutron star?
>
> Let's talk about frame of reference for a second. We are out
> here in the Universe looking at stuff infalling to an event
> horizon.

I was thinking thus:
We start with a neutron star [named Camel] that is almost massive enough to
be a black hole.
A chunk of infalling matter [perhaps an asteroid called Straw] adds enough
mass to collapse our star.
That is a-noval event.
After Camel collapses, it falls through an opening in a drifting asteroid
called Needle, so mote it be.

>From the outside, the black hole, [cute lil fuzzy critter, isn't it?] has a
radius [thus a volume] and a mass thus a density and even an unspecific
gravity.

> We can attribute a total mass to the BH, based on
> distortion of distant objects (this gives us the various Einstein
> rings). We can infer a size based on this mass. We can further
> infer a density, but to no avail, since we cannot test it.

We can drop plasma from a passing star, and look at the diameter of the
inside edge of the ring of fire. Adjust for a small pot [eine klein stein].
We get a lower limit for the density.

> We
> can measure a temperature of the BH.
>
> We also cannot presume that the density in *internal coordinates*
> is anything in particular.

Quite true. There is only one event horizon that we can know anything about
the inside of, and that is 'Our Universe'.

> But we can expect that it would have
> conservation laws just as we have, and that would lead to the
> event horizon being a Big Bang in yet another Universe.

Rather than a big bang, a small thump.

> So ultimately, no the inside of a black hole is not necessarily
> "denser than a neutron star". Because it also must evaporate...
> in time.

Someone has been hawking the idea, but, it remains to be scene, but it
would be quite an event.





--
bz

please pardon my infinite ignorance, the set-of-things-I-do-not-know is an
infinite set.

bz+sp@xxxxxxxxxxxxxxxxxxxx remove ch100-5 to avoid spam trap
.

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