Animal Locomotion: Or, Walking, Swimming, and Flying, with a Dissertation on AëronauticsH. S. King & Company, 1873 - 264 páginas |
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Página 5
... waved tracks on the land when walking and running ; so that one great law apparently determines the course of the insect in the air , the fish in the water , and the quadruped on the land . We are , unfortunately , not taught to regard ...
... waved tracks on the land when walking and running ; so that one great law apparently determines the course of the insect in the air , the fish in the water , and the quadruped on the land . We are , unfortunately , not taught to regard ...
Página 10
... waved lines which intersect at every step . This arises from the fact that the curves formed by the right and left legs are found alternately on either side of a given line , the same holding true of the right and left arms . Walking is ...
... waved lines which intersect at every step . This arises from the fact that the curves formed by the right and left legs are found alternately on either side of a given line , the same holding true of the right and left arms . Walking is ...
Página 12
... waved tracks . Thus the wing of the bird , when it is made to oscillate , is thrown into double or figure - of - 8 curves , like the body of the fish . When , moreover , the wing ascends and descends to make the up and down strokes , it ...
... waved tracks . Thus the wing of the bird , when it is made to oscillate , is thrown into double or figure - of - 8 curves , like the body of the fish . When , moreover , the wing ascends and descends to make the up and down strokes , it ...
Página 16
... waved track , from the fact that the figure of 8 is gradually opened out or unravelled as the animal advances . That the wing acts after the manner of a kite , both during the down and up strokes . I was induced to address the above to ...
... waved track , from the fact that the figure of 8 is gradually opened out or unravelled as the animal advances . That the wing acts after the manner of a kite , both during the down and up strokes . I was induced to address the above to ...
Página 37
... waved line ( s , u ) ; the left fore and the right hind foot move together to form the waved line ( r , t ) . The curves formed by the anterior ( t . u ) and posterior ( r , s ) extremities form ellipses . Compare with fig . 19 , p . 39 ...
... waved line ( s , u ) ; the left fore and the right hind foot move together to form the waved line ( r , t ) . The curves formed by the anterior ( t . u ) and posterior ( r , s ) extremities form ellipses . Compare with fig . 19 , p . 39 ...
Outras edições - Ver tudo
Animal Locomotion: Or, Walking, Swimming, and Flying, with a Dissertation on ... James Bell Pettigrew Visualização integral - 1873 |
Animal Locomotion: Or, Walking, Swimming, and Flying, with a Dissertation on ... James Bell Pettigrew Visualização integral - 1883 |
Animal Locomotion: Or, Walking, Swimming, and Flying, with a Dissertation on ... James Bell Pettigrew Pré-visualização indisponível - 2016 |
Palavras e frases frequentes
action aërial animals arms and legs arrangement artificial wave artificial wing ascends axes backwards bat and bird beetle biting surface blades body bones Borelli Compare with fig concave convex coracoid Crown 8vo depressed described downward dugong elastic ligaments elbow-joint elevating and propelling ellipse elytra extension extremities feet fins fish flexed flexible flexion flight flying foot gannet horizontal direction humerus inclined planes increased insect insect wing joint kite less lever limbs long axis manner Marey membranous motion move movements muscles muscular natural wing nervures oblique oscillate pectoral fins pinion porpoise portions position posterior margin posterior or thin primary produced quadruped rapid reciprocating Red-legged Partridge remarkable resistance root rotating scapula screw secondary feathers shoulder-joint side spiral swimming tail thick margin tion trunk twisting universal joint upward direction upwards and forwards velocity vertical vertical direction vibrate walking wave wing waved track weight wing descends
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