engineering fundamentals Discussion Forum
Directory | Career | News | Industrial
Home Membership Magazines Forum Search Member Calculators






List Recent Topics | Start a New Topic

<< Previous Message No. 5879 Next >>
Author: mbeychok
Time: 01/24/01 13:13 PST
This is a reply to message no. 5877 by j_mates
Reply | Original Message | New Topic | List Topics | List Messages on This Topic
Current Topic:
"perfect" vacuum

A perfect vacuum would be one in which the absolute pressure would be zero (in any units).

That would normally occur when the amount of vacuum was 29.92 inches of mercury (meaning that the absolute pressure was 29.92 inches of mercury below the ambient atmospheric pressure).

Just for your information, 29.92 inches of mercury is equivalent to 760 millimeters of mercury or 14.696 pounds per square inch.

Milton Beychok
(Visit me at

[ List Replies to This Message Only ]

Home  Membership  About Us  Privacy  Disclaimer  Contact  Advertise

Copyright © 2018 eFunda, Inc.