Animal Locomotion: Or, Walking, Swimming, and Flying, with a Dissertation on AëronauticsH. S. King & Company, 1873 - 264 páginas |
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Página xii
... 147 The long and short axes of the wing , 149 The waved tracks described by the wing and body of the bird as they alternately rise and fall , • 157 , 163 The positions assumed by the wing of the bird during xii LIST OF ILLUSTRATIONS .
... 147 The long and short axes of the wing , 149 The waved tracks described by the wing and body of the bird as they alternately rise and fall , • 157 , 163 The positions assumed by the wing of the bird during xii LIST OF ILLUSTRATIONS .
Página 10
... alternately on either side of a given line , the same holding true of the right and left arms . Walking is consequently to be regarded as the result of a twisting diagonal movement in the trunk and in the extremities . Without this ...
... alternately on either side of a given line , the same holding true of the right and left arms . Walking is consequently to be regarded as the result of a twisting diagonal movement in the trunk and in the extremities . Without this ...
Página 12
... alternately ( the one being active when the other is passive ) , and the descent of the wing is not more necessary to the elevation of the body than the descent of the body is to the elevation of the wing . It is thus that the weight of ...
... alternately ( the one being active when the other is passive ) , and the descent of the wing is not more necessary to the elevation of the body than the descent of the body is to the elevation of the wing . It is thus that the weight of ...
Página 42
... alternately by a lateral swinging motion , very comfortable for the rider , but anything but graceful . The amble is a defective pace , inasmuch as it interferes with the diagonal movements of the limbs , and impairs the con- tinuity of ...
... alternately by a lateral swinging motion , very comfortable for the rider , but anything but graceful . The amble is a defective pace , inasmuch as it interferes with the diagonal movements of the limbs , and impairs the con- tinuity of ...
Página 49
... alternately and with great rapidity . When the right leg is flexed and elevated , it swings forward pendulum- fashion , and describes a curve whose convexity is directed towards the right side . When the left leg is flexed and elevated ...
... alternately and with great rapidity . When the right leg is flexed and elevated , it swings forward pendulum- fashion , and describes a curve whose convexity is directed towards the right side . When the left leg is flexed and elevated ...
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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