Animal Locomotion: Or, Walking, Swimming, and Flying, with a Dissertation on AëronauticsH. S. King & Company, 1873 - 264 páginas |
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Página viii
... strokes , 165 • Where the kite formed by the wing differs from the boy's kite , The angles formed by the wing during ... stroke , 182 183 Consideration of the forces which propel the wings of insects , . Speed attained by insects , 186 ...
... strokes , 165 • Where the kite formed by the wing differs from the boy's kite , The angles formed by the wing during ... stroke , 182 183 Consideration of the forces which propel the wings of insects , . Speed attained by insects , 186 ...
Página ix
... stroke should be delivered down- wards and forwards , 195 The wing acts as an elevator , propeller , and sustainer , both during extension and flexion , 197 Flight divisible into four kinds , 197 The flight of the Albatross compared to ...
... stroke should be delivered down- wards and forwards , 195 The wing acts as an elevator , propeller , and sustainer , both during extension and flexion , 197 Flight divisible into four kinds , 197 The flight of the Albatross compared to ...
Página 12
... strokes , it rotates within the facettes or depressions situated on the scapula and coracoid bones , precisely in the ... stroke . When the wing descends it describes a downward and forward curve , and elevates the body in an upward and ...
... strokes , it rotates within the facettes or depressions situated on the scapula and coracoid bones , precisely in the ... stroke . When the wing descends it describes a downward and forward curve , and elevates the body in an upward and ...
Página 34
... stroke , and expanded during the effective or forward stroke . Due advantage is taken of this arrangement by the seal when swimming , the animal rotating on its long axis , so as to present the lower portion of the body and the feet ...
... stroke , and expanded during the effective or forward stroke . Due advantage is taken of this arrangement by the seal when swimming , the animal rotating on its long axis , so as to present the lower portion of the body and the feet ...
Página 67
... stroke , it is urged towards the ima- ginary line , its convex or non - biting surface being directed inwards ( fig ... stroke , i.e. when it is flexed and carried away from the axis of motion ( d c f ) than it would during the forward ...
... stroke , it is urged towards the ima- ginary line , its convex or non - biting surface being directed inwards ( fig ... stroke , i.e. when it is flexed and carried away from the axis of motion ( d c f ) than it would during the forward ...
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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