Animal Locomotion: Or, Walking, Swimming, and Flying, with a Dissertation on AëronauticsD. Appleton, 1885 - 264 páginas |
No interior do livro
Resultados 1-5 de 88
Página vi
... body and wing reciprocate in flight ; the body rising when the wing is falling , and vice verså , Flight the least fatiguing kind of motion . Aërial creatures not stronger than terrestrial ones , Fins , flippers , and wings form mobile ...
... body and wing reciprocate in flight ; the body rising when the wing is falling , and vice verså , Flight the least fatiguing kind of motion . Aërial creatures not stronger than terrestrial ones , Fins , flippers , and wings form mobile ...
Página viii
... body descends , and vice versâ , The wing acts upon yielding fulcra , • · The wing acts as a true kite both during the down and up • · strokes , Where the kite formed by the wing differs from the boy's kite , The angles formed by the ...
... body descends , and vice versâ , The wing acts upon yielding fulcra , • · The wing acts as a true kite both during the down and up • · strokes , Where the kite formed by the wing differs from the boy's kite , The angles formed by the ...
Página 9
... body rolling on the extremity the one instant , the extre- mity rolling on the trunk the next . During these movements the body rises and falls . The double rolling movement is necessary not only to the progression of bipeds , but also ...
... body rolling on the extremity the one instant , the extre- mity rolling on the trunk the next . During these movements the body rises and falls . The double rolling movement is necessary not only to the progression of bipeds , but also ...
Página 10
... body when the right leg swings behind it , and the converse . The right leg and left arm advance simultaneously , and alternate with the left leg and right arm , which likewise advance together . This gives rise to a double twisting of ...
... body when the right leg swings behind it , and the converse . The right leg and left arm advance simultaneously , and alternate with the left leg and right arm , which likewise advance together . This gives rise to a double twisting of ...
Página 11
... body in swimming , and which gives continuity of motion , also supplies the requisite degree of steadiness . When the tail is lashed from side to side there is a tendency to produce a corresponding movement in the head , which is at ...
... body in swimming , and which gives continuity of motion , also supplies the requisite degree of steadiness . When the tail is lashed from side to side there is a tendency to produce a corresponding movement in the head , which is at ...
Outras edições - Ver tudo
Animal Locomotion: Or Walking, Swimming, and Flying, with a Dissertation on ... James Bell Pettigrew Visualização integral - 1882 |
Animal Locomotion, Or, Walking, Swimming, and Flying: With a Dissertation on ... James Bell Pettigrew Visualização integral - 1874 |
Animal Locomotion: Or, Walking, Swimming and Flying, with a Dissertation on ... James Bell Pettigrew Visualização integral - 1893 |
Palavras e frases frequentes
action aërial albatross angle animals arms and legs arrangement artificial wave artificial wing ascends backwards bat and bird biped blades body bones Borelli Compare with fig concave convex depressed described downward dugong effective stroke elastic ligaments elbow-joint elevating and propelling ellipse elytra extended feet fins fish flexed flexible flexion flight flying foot force gannet glide horizontal direction humerus inclined planes increased insect insect wing joint kite less levers limbs locomotion long axis manner Marey motion move movements muscles muscular muscular system natural wing nervures oblique oscillate pectoral pectoral fins pinion porpoise portion position posterior margin posterior or thin produced quadruped rapidity remarkable resistance reverse root rotation sail screw sea-bear shoulder-joint side speed spiral swimming tail thick margin tion travelling surfaces trunk twisting universal joint upward direction upwards and forwards velocity vertical vertical direction vibrate walking waved track weight wing descends