Negative pressure may refer to:
- negative pressure as opposed to positive pressure
- stretched liquid
- vacuum
- negative gauge pressure, a way of expressing pressure measurements below atmospheric pressure
- suction
- transpirational pull
Famous quotes containing the words negative and/or pressure:
“The idealists programme of political or economic reform may be impracticable, absurd, demonstrably ridiculous; but it can never be successfully opposed merely by pointing out that this is the case. A negative opposition cannot be wholly effectual: there must be a competing idealism; something must be offered that is not only less objectionable but more desirable.”
—Charles Horton Cooley (18641929)
“Under the pressure of the cares and sorrows of our mortal condition, men have at all times, and in all countries, called in some physical aid to their moral consolationswine, beer, opium, brandy, or tobacco.”
—Edmund Burke (17291797)