Experimental science. Elementary, practical and experimental physics (1890)
Hopkins, George M. (George Milton), 1842-1902 · New York, Munn & co. · leaf 220
Hot Air Motor. HEAT. 197 … the figure, contains a short piece of catgut cord, which isfastened in the rear end of the tube by closing the sides ofthe tube down upon it. The opposite end of the cord pro-jects beyond the front of the figure, and is attached to thearm of the boy. In the hand ofthe arm thus supported is…
Physics · Lantern projection · Electric apparatus and appliances
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