A text book of physics, for the use of students of science and engineering (1918)
Duncan, John, d. 1941, Starling, Sydney George, 1873- · London Macmillan · leaf 459
initially with another pump at n (Fig. 419)to a pressure lower than the constantdifference of pressure between n and m.This is no longer the case for pressureslower than 0-001 mm. of mercury. If thesurface of the cylinder A had a velocitygreater than the molecular velocity, we would obtain an… … Fig. 4)9.—Principle of the Gaedemolecular air pump.
Physics
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