. Animal locomotion, or Walking, swimming, and flying, with a dissertation on aëronautics. Animal locomotion; Aeronautics. 144 ANIMAL LOCOMOTION. the wing of the bat and bird. The principle is, however, in both cases the same, the loops ultimately terminating in a waved track. The impulse is communicated to the insect wing at the heavy parts of the loops ahcdefghijhlmn of fig. 71 ; the waved tracks being indicated atj? 5 ^ of the same figure. The recoil obtained from the air is repre- sented at corresponding letters of fig. 72, the body of the Fig. Fig. 73. insect being carried along the c
. Animal locomotion, or Walking, swimming, and flying, with a dissertation on aëronautics. Animal locomotion; Aeronautics. 144 ANIMAL LOCOMOTION. the wing of the bat and bird. The principle is, however, in both cases the same, the loops ultimately terminating in a waved track. The impulse is communicated to the insect wing at the heavy parts of the loops ahcdefghijhlmn of fig. 71 ; the waved tracks being indicated atj? 5 ^ of the same figure. The recoil obtained from the air is repre- sented at corresponding letters of fig. 72, the body of the Fig. Fig. 73. insect being carried along the curve indicated by the dotted line. The impulse is communicated to the wing of the bat and bird at the heavy part of the loops a b c d e f g h ij hlmno of fig. 73, the waved track being indicated p s t u v w oi this figure. When the horizontal speed attained is high, the wing is successively and rapidly brought into contact with innumerable columns of undisturbed air. It, consequently, is a matter of indifference whether the wing is carried at a high speed against undisturbed air, or whether it operates upon air. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Pettigrew, James Bell, 1834-1908. New York, D. Appleton & company
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Keywords: ., bookcentury1800, bookdecade1870, booksubjectaeronau, bookyear1874
