Experimental science. Elementary, practical and experimental physics (1890)
Hopkins, George M. (George Milton), 1842-1902 · New York, Munn & co. · leaf 474
attached at one end to hooks passing through an insulatingpost, and after passing once around their respective sleeveson the index and scale, are attached to spiral springs, whichin turn are connected with wire hooks extending throughan insulating post projecting horizontally from the vulcan-ite… … aa. X 452 EXPERIMENTAL SCIENCE. two mercun cups. It will be seen that with this construc-tion the expansion of the rear wire will move the scale,while the expansion of the front wire will move the index.In order to apply the current to any required length ofwire, there is upon each of the…
Physics · Lantern projection · Electric apparatus and appliances
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