Experimental science. Elementary, practical and experimental physics (1890)
Hopkins, George M. (George Milton), 1842-1902 · New York, Munn & co. · leaf 77
XPERIMENTAL SCIENCE. period of the torsion pendulum is longer than that of anoscillating one, or the number of gear wheels required inthe clock may be greatly reduced. Ordinary clocks con-structed on this principle run a year with a single winding.Clocks have been made on this plan which would run…
Physics · Lantern projection · Electric apparatus and appliances
Internet Archive · Cornell University Library · Public Domain Mark 1.0. Free to use for anything.
