The elements of applied mathematics including kinetics, statics, and hydrostatics (1894)
Jessop, C. M. (Charles Minshall), 1861-1939 · London, New York, G. Bell and Sons; [etc.] · leaf 145
Fig. 80. 133. Zone of a sphere. Let the hemisphere A CB be cut by two planes parallel to its base,they intercept between them a portion called a zone. The planes alsointercept between them a zone on a circular cylinder whose base is thesame as that of the hemisphere. We shall shew that these two… … Fig. 81. For take two planes very near together, they will intersect on thesphere and cylinder two elementary zones or belts. One elementaryzone is produced by the revolution oiPQ about 00 and the other by therevolution oiPQ. Let R be the middle point of PQ, join OR and drawRS parallel to OA. The…
Mechanics
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