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)
can belifted full of the liquid; owing to the down-ward pressure of the air Avithin the tubebeing excluded, and thus allowing its pres-sure on the outside to drive the water intothe tube. -745. Figure 39. — Vacuum, foun-tain, showing atmospheric pressure. —Let A be auy shaped glass vessel,… … FiG. 39. Fig. 40.
Physics · Astronomy
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