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 105
Experiment b. — With the Magdeburgh Hemispheres ex-hausted as above, screw to the brass socket of the basement, What is the result in removing the air from within the Magdeburgh Hemi-Bpheres ? How can it be shown that it is the pressure of the air which holdsthese together so firmly ? Give the…
Physics
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