Re: [GZG] Biology in a vacuum

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http://lists.csua.berkeley.edu/mailman/listinfo/gzg-lThe biologicals
that live deep in the ocean don't deal with the pressure by
maintaining
a different pressure outside as inside.   They are equalized inside and
out.

You could inflate a balloon at the deepest spot in the ocean and it
would be
fine.
If you inflate the same balloon in space it would pop.

Roger

On 3/27/06, Ryan Gill <rmgill@mindspring.com> wrote:
>
> At 3:13 PM +1100 3/27/06, <Beth.Fulton@csiro.au> wrote:
> >G'day,
> >
> >>  After all, the difference between temperatures and pressures found
in
> >> the deepest trench, or active floor vent, and the near surface of
the
> >ocean
> >> could be seen as extreme as between sea level and outer space....
> >
> >Problem is I can't think of a single large bodied (over say 8-10cm
total
> >size) that can come up from the abyssal plain, let alone trenches and
> >survive. They tend to pop, or invert (nothing like having you insides
> >out to kill you off). That's ignoring cellular level damage that
occurs
> >on exposure to vacuum.
>
> But your pressure difference from the surface to the deep deep is 1
> atmosphere per 33'. From sea level to space, it's just 1 atmosphere
pressure
> difference.
>
> If you can grow a structure that can handle hundreds to thousands of
> pounds per square inch pressure, then you can cognitively grow one
that'll
> handle zero pressure by being dead/rigid tissue from the start. And if
the
> tissue gets cracked to the living part, the living part would be
organically
> inclined to emit a mucus that hardens when exposed to vacuum as an
instant
> damage control function. I'm handwaving here, but then so is the whole
idea
> of large thinking bio constructs in the first place.
> --
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