Hall, Edwin Herbert, 1855-1938 · New York, H. Holt and company · leaf 57
atus shown in Fig. 23, in which the straight lever thus far usedis replaced by a circle of wood about 8 inches in diameter,supported by a screw passing horizontally through thecentre. Such a circle, or disk, of wood comes under thegeneral definition of a lever. EXPERIMENTS. We will hang at b and /… … THE LEVER. U other, leaving the disk in equilibrium, and will then move one ofthe weights to a point vertically above or vertically below its pres-ent place ; that is, from/to e or g, or from b to a or c. Shall we stillhave equilibrium ? Try. We will now turn the disk a little, so that the lines ab…
Physics
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
