Johnson's natural philosophy and key to philosophical charts : illustrated with 500 cuts; being reduced photographic copies of all the diagrams contained in the author's philosophical series of indestructible school charts ; for the use of schools and families (1878)
. if half the pressure be removed, the volume 110 PNEUMATICS. will be doubled, and so on. By this law, at a pressure of 814 atmo-spheres, air would become as dense as water. 148. Figure 42.—Condenser, and condensed air.—Let W be the vessel in which the air is to be condensed, provided with afaucet.…
Physics · Astronomy
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