A text-book of physics, largely experimental. On the Harvard college "Descriptive list of elementary physical experiments." (1891)
Hall, Edwin Herbert, 1855-1938, Bergen, Joseph Y. (Joseph Young), 1851-1917 · New York, H. Holt and Company · leaf 67
the first effect of opening any givenaperture. Observe that in all cases the top of the water column inthe tube is a free surface; that is, a surface exposed to the directpressure of the outer air. In unravelling hydrostatic puzzles it isbest to begin at a free surface; for at this surface we know… … FIG. 21. FLUID-PRESSURE. 45 46. The Siphon.—The apparatus illustrated in the fol-lowing experiment is called the siphon. It is found ina great variety of forms. EXPERIMENT. Take two glass tubes, each about 6 in. long, connected by a rubbertube about 1 ft. long. Fill the whole with water, then close…
Physics
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