Or, in other words, if the area est efficiency. of the plate is varied (in width As the speed may thereafter vary, across the line of motion) in- any tendency to sink, because of less- versely as the square of the ened speed, is immediately overcome speed, the resistance due to skin by the lifting… … writer has experimented with swb- of a chain. Letter F indicates the merged plates. necessary wood or metal framework The apparatus used was crude, but for rigidly connecting and support- it will be seen from the photograph ing the rear portion of mechanism. that even at the moderate speeds at- The…
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