The elements of natural philosophy : copiously illustrated by familiar experiments and containing descriptions of instruments, with directions for using : designed for the use of schools and academies (1856)
Sprague, A. W. (Alfred White), 1821-1891 · Boston : Phillips, Sampson & Company · leaf 109
so as to revolve in an empty jar be-neath. A tube, leading from the upper end of the stop-cock, enters a jar of water. With the stop-cock closed,exhaust the bell-glass, then open ; the atmospheric pres-sure will drive over the liquid through the tube andjet, causing the latter to revolve rapidly… … Describe the experiment with the bolt-head. What does this illustrate ? 104 SIPIIOX-BAROMETER. Fig. 85. brim with water; then place over the open end a piece of thickwriting-paper, pressing this carefully against the glass rim,and then invert, as seen by Fig. 85. The at-mospheric 2)ressiire will…
Physics
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