[GZG] Pressures

Roger Books wrote -

> The biological 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.

Is it actually that simple?

Presumably, to inflate a balloon at the deepest spot in the ocean you're
going to need an awful lot of pressure to exceed the external pressure
to
stretch the balloon until the elasticity of the balloon prevents further
expansion..

Conversely, if you inflate a balloon in space you need a lot less
pressure,
and there must still be some point at which the balloon is strong enough
to
contain the requisite pressure.

After all, the difference between pressure at sea level and that at the
bottom of the oceans is massive, whereas between sea level and space is
one
atmosphere.

CJ

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