Years ago (In the days of HeNe lasers), I was working in a physics workshop.
We had a HeNe tube that was more of e neon tube - the Heluim had migrated
out of the tube.
On fellow got an idea to shroud the tube in a container full of He gas
under perssure to rectify the problem... Sadly it didn't work. Iw ould be
interesting to understand the actual physics of the problem, and calculate
the pressure / time to allow the migration to happen the other way. I
suspect it is a big number.
On Wed, Nov 2, 2011 at 9:36 AM, Fred Cisin <cisin at xenosoft.com> wrote:
> Not quite
the same as when the dark leaks out of your darkroom.
On Tue, 1 Nov 2011, John Many Jars wrote:
I've had the smoke leak out of things. That
was usually bad.
But unlike either of these, nor shortage of computrons, vacuum can be
partially refilled. If you take the device that has had its vacuum leak
out, and put it in a large container, and pump that container full of LOTS
of vacuum, some of the vacuum will leak back into the device!
Unfortunately, that technique does not seem to work with dark, computrons,
nor magic smoke (the smoke may go in, but loses its magic properties).