Re: [GZG] Biology in a vacuum

["Roger Books" <roger.books@xxxxxxxxx>]

The 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@xxxxxxxxxxxxxx> wrote:

At 3:13 PM +1100 3/27/06, <Beth.Fulton@xxxxxxxx> 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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