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Johnson's natural philosophy and key to philosophical charts : illustrated with 500 cuts; being reduced photographic copies of all the diagrams contained in the author's philosophical series of indestructible school charts ; for the use of schools and families (1878)

Johnson, Frank G., 1835- · Chicago, A.H. Andrews · leaf 88

An illustration from Johnson's natural philosophy and key to philosophical charts : illustrated with 500 cuts; being reduced photographic copies of all the diagrams contained in the author's philosophical series of indestructible school charts ; for the use of schools and families, 1878, leaf 88
99. Figure 7.—Intermitting springs.- FiG. 7. -See Siphons (189). … 100. Figure 8.—Upward pressure of liquids equal todowTLW^ard pressure at the samedepth.—Let E be a vessel partlyfilled with water. Take a tube, F,with a movable disk or false bottom,N, fitted water-tight, and held to thebottom of the tube F by means ofa cord; then thrust the tube downinto the…

Physics · Astronomy

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