Animal locomotion, or Walking, swimming, and flying, with a dissertation on aëronautics (1874)
Pettigrew, James Bell, 1834-1908 · New York, D. Appleton & company · leaf 44
d byits distance, or P the power, and W the weight, are in equi-librium when they are to each other in the inverse ratio ofthe arms of the lever, to which they are attached. Thepressure on the fulcrum however varies. In straight levers of the first kind, the fulcrum is betweenthe power and the… … Fig. 1. 20 ANIMAL LOCOMOTION^ P.AFurW.BF, and the pressure on the fulcrum is both thepower and resistance, or P-j-W. In the second order of levers (fig. 2), the resistance is be-tween the fulcrum and the power; and, as before, P : W : :BF : AF, but the pressure of the fulcrum is equal to W—P,or the…
Animal locomotion · Aeronautics
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