Elementary treatise on physics experimental and applied for the use of colleges and schools (1890)
Ganot, A. (Adolphe), 1804-1887, Atkinson, E. (Edmund) · New York : W. Wood · leaf 203
between the piston and the barrel. The internalfriction of the air in this narrow space is so great that the rate at which itleaks into the barrel is far inferior to the rate at which the pump is exhaust-ing air from the receiver. And Maxwell showed that the internal frictionis not diminished even… … 205. Sprengrels air-pump.—Sprengel has devised a form of air-pumpwhich depends on the principle of converting the space to be exhausted intoa TorriceHian vacuum. If an aperture be made in the top of a barometer tube, the mercury sinksand draws in air ; if the experiment be so arranged as to allow…
Physics
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![An illustration from [Electric engineering.] (1902)](https://img.insideoutlibrary.com/img/200/ia-electricengineer03inte-207-119.webp)
