Animal locomotion or walking, swimming, and flying : with a dissertation on aëronautics (1873)
Pettigrew, James Bell, 1834-1908 · London : Henry S. King & Co. · leaf 245
ngs up till 1865.He was well acquainted with the properties of the wedge, asapplied to flight, and he was likewise cognisant of the flexibl*and elastic properties of the wing. To him is to be tracedthe purely mechanical theory of the wings action. He figureda bird with artificial wings, eacli wing… … % # Fig. 113.—Borellis Artificial Bird. The wings (b cf,oe a), are represented as striking verticallydownwards (g h). They remarkably accord with those de-scribed by Straus-Durckheim, Girard, and quite recently byProfessor Marey.3 Borelli is of opinion that flight results from the applicationof an…
Animal locomotion · Physiology · Aeronautics
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