Animal Locomotion: Or, Walking, Swimming, and Flying, with a Dissertation on AëronauticsH. S. King & Company, 1873 - 264 стор. |
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Сторінка vii
... opposite curves during extension and flexion , 146 The tip of the bat and bird's wing describes an ellipse , The wing capable of change of form in all its parts , The wing during its vibration produces a cross pulsation , Compound ...
... opposite curves during extension and flexion , 146 The tip of the bat and bird's wing describes an ellipse , The wing capable of change of form in all its parts , The wing during its vibration produces a cross pulsation , Compound ...
Сторінка viii
... opposite curves , 168 THE WINGS OF INSECTS , BATS , AND BIRDS . Elytra or wing cases and membranous wings ; their shape and uses , THE WINGS OF BATS . The bones of the wing of the bat ; the spiral configuration of their articular ...
... opposite curves , 168 THE WINGS OF INSECTS , BATS , AND BIRDS . Elytra or wing cases and membranous wings ; their shape and uses , THE WINGS OF BATS . The bones of the wing of the bat ; the spiral configuration of their articular ...
Сторінка 11
... opposite sides of a given line , as is the case in the extremities of the biped when walking . The mass of the fish , like the mass of the biped , when once set in motion , contributes to progression by augmenting the rate of speed ...
... opposite sides of a given line , as is the case in the extremities of the biped when walking . The mass of the fish , like the mass of the biped , when once set in motion , contributes to progression by augmenting the rate of speed ...
Сторінка 13
... opposite . A flying creature , when fairly launched in space ( because of the part which weight plays in flight , and the little resistance expe- rienced in forward motion ) , sweeps through the air with almost no exertion.1 This is ...
... opposite . A flying creature , when fairly launched in space ( because of the part which weight plays in flight , and the little resistance expe- rienced in forward motion ) , sweeps through the air with almost no exertion.1 This is ...
Сторінка 14
... opposite curves into which the tail and wing are thrown in swimming and flying constituting the mobile helices , or screws , which , during their action , produce the precise kind and degree of pressure adapted to fluid media , and to ...
... opposite curves into which the tail and wing are thrown in swimming and flying constituting the mobile helices , or screws , which , during their action , produce the precise kind and degree of pressure adapted to fluid media , and to ...
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Animal Locomotion: Or, Walking, Swimming, and Flying, with a Dissertation on ... James Bell Pettigrew Попередній перегляд недоступний - 2016 |
Загальні терміни та фрази
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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