From: Jed Rothwell
> Helium alone cannot leak IN without argon.
Complete nonsense !
Helium has an enormous diffusion rate through Pyrex glass. Argon has almost
none. Check the MIT site if you want a source.
Even if Argon could diffuse in, which it cannot – Grahams Law would mean the
rate of diffusion was much higher for helium. You statement is complete naïve.
> I did not make this stiff up, as Dave Barry used to say.
Apparently you do make it up… or else you do not understand Grahams Law at a
very minimum.
Jones