A treatise on architecture and building construction (1899)
International Correspondence Schools · Scranton, The Colliery engineer co. · leaf 225
power which is expended in slidingthe particles of fluid upon one another is wasted. This loss cannot beavoided, whether theturn be made sharp-ly, as in Fig. 3, on asmall radius, as inFig. 4, or on a longradius, as in Fig. 5.But the time whichis afforded for ma-king the change ofdirection (the… … 17 OF BUILDINGS. 29 square of the time in which the change of direction is made.Hence, if the change of direction is made in 2 seconds inFig. 4, and in 4 seconds in Fig. 5, then 4^ -^ 2^ = 4 times asmuch force will be required when turning the curve ofshorter radius. 47. Interference of…
Architecture · Building
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