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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 103

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 103
apart; but when it is con-sidered that the distance between the two radii, drawn from E to N, is. 96 P^EUMATICS. over a thousand miles, it is plain that within the reach of vision (say,twenty-five to thirty miles), the surface of the water would appear tobe a horizontal plane, instead of a portion… … 1^3. Height of the atmosphere.- extend more than fifty miles from the landtively, it is a mere film on the face of theglobe it would be less than an eighth of anmost dense at the surface of the earth, andfied at its greatest altitude. Yet it is heldequilibrium, against its elastic or…

Physics · Astronomy

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