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(Steven Shelikoff) wrote in message ...
On Thu, 11 Dec 2003 04:52:17 GMT, Rick wrote:

Steven Shelikoff wrote:

It would probably be better for you to define an absolute vacuum as 0
psi instead of -14.7 psig.

It is far better to describe it as it really is. An absolute vacuum (or
as close as we can get to one) is about .0049 psi.

No, an absolute vacuum is 0 psi. It doesn't matter how close we can get
to one. If 0.0049 psi is as close we can get to one, that only means we
can't generate an absolute vacuum.

There is no such thing as -X.X pounds per square inch.

There may not be an absolute -X.X psi, but there certainly is such a
thing as -X.X psig.

Steve

Got to agree with Steve on this one. Just because we can only get to
ABOUT 0.0049 doesn't mean that is absolute. An absolute vacuum,
is......0psi