Experimental science. Elementary, practical and experimental physics (1890)
Hopkins, George M. (George Milton), 1842-1902 · New York, Munn & co. · leaf 28
h to the * See also chapter on projection. PROPERTIES OF BODIES. 5 rubber tube and sucking. The mercury readilj- passesthrough the porous wood and falls in a shower. By employ-ing an air pump for producing the partial vacuum, the mer-cury may be drawn through a plug of pine. These experi-ments show… … Mercurial Shower. ma}^ readil}^ be seen. Physical pores cannot be seen evenby the aid of the most powerful microscope; but theirexistence is proved by the fact that all bodies may be com-pressed or diminished in volume. Sensible pores play an important part in the operationsof nature, especially in…
Physics · Lantern projection · Electric apparatus and appliances
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