Hi Dan,
I won't keep it going either, but latex rubber is not semipermiable. A molecule
as small as hydrogen can pass right through the lattice structure of most solids
because of its extremely small size. The material could be porous to hydrogen as
most things are or helium as many things are, but it is not semipermiable and
does not support osmosis. That is still the nearly exclusive province of
biological membranes. GoreTex almost fills the bill, but not quite.
Jim
Dan Dwelley wrote:
> OK... I won't keep the argument going but I will say...I do remember from
> chemistry classes that rubber including latex is considered semi-permiable.
> Keep in mind, this doesn't mean it'll leak everything! It simply means that
> if a molecule of some substance is small enough, it has the ability to pass
> through the semi-permiable layer...how fast it can do that is another issue.
> So...do they leak?...yes and no. The likelyhood of a water molecule passing
> through the lines...I highly doubt it...the molecule is too big.
>
> As an example, you can take a helium balloon and a water balloon. The water
> will not leak out of the balloon after setting for a few days BUT the helium
> ballon will loose its helium volume after a few days...that is due to the
> helium passing through the semi-permiable layer.
>
> Class dismissed. :o))
>
> Dan Dwelley
> 77 Midget
> Alexandria, Va.
>
> On Thu, 24 Feb 2000 14:41:01 EST, Ajhsys@aol.com wrote:
>
> > In a message dated 2/24/00 2:36:27 PM Eastern Standard Time,
> microdoc@apk.net
> > writes:
> >
> > << I think it is our duty to foster this debate, and propose that we
> change
> > the MG
> > slogan from "Safety Fast" to "Safety Fast... and never stop arguing
> about
> > brake
> > fluid." ;^) >>
> >
> > - - - - - - - - - - - - - - -
> >
> > I'm stopping this discussion. You win.
> >
> > As I said before, Ya pays yer money and ya takes yer chances. Mine go
> with
> > Castrol LMA.
> >
> > Allen Hefner
> > SCCA Philly Region Rally Steward
> > '77 Midget
> > '92 Mitsubishi Expo LRV Sport
>
> Dan Dwelley
> 77 Midget
> Alexandria, Va.
>
> _______________________________________________________
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