Experimental science. Elementary, practical and experimental physics (1890)
Hopkins, George M. (George Milton), 1842-1902 · New York, Munn & co. · leaf 572
-eighths actualsize, and may be used as working drawings from which toconstruct the instrument. Fig. 530 is a plan view. Fig. 531is a central, vertical longitudinal section. Fig. 532 repre-sents the under side of the base, in plan, and the condenserin perspective, and shows the connections. The… … 550 EXPERIMENTAL SCIENCE. wound upon a spool composed of the thin paper or woodentube, A, and the heads, BB, which are of vulcanite or wellvarnished hard wood. The tube is ^ inch internal diameter,and the heads have each a central hole of the same size.These holes are enlarged or counterbored to…
Physics · Lantern projection · Electric apparatus and appliances
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