Animal Locomotion: Or, Walking, Swimming, and Flying, with a Dissertation on AëronauticsD. Appleton, 1885 - 264 páginas |
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Página vii
... produces a cross pulsation , Compound rotation of the wing , The wing vibrates unequally with reference to a given line , Points wherein the screws formed by the wings differ from those in common use , · 147 147 148 149 • 150 151 PAGE ...
... produces a cross pulsation , Compound rotation of the wing , The wing vibrates unequally with reference to a given line , Points wherein the screws formed by the wings differ from those in common use , · 147 147 148 149 • 150 151 PAGE ...
Página xii
... produced on the eye by the rapidly oscillat- 136 , 137 138 ing wing of the insect , 139 Diagram in which the down and up strokes of the wing of the insect are analysed , 141 • · · Diagrams illustrating the looped and waved tracks ...
... produced on the eye by the rapidly oscillat- 136 , 137 138 ing wing of the insect , 139 Diagram in which the down and up strokes of the wing of the insect are analysed , 141 • · · Diagrams illustrating the looped and waved tracks ...
Página xiii
... produced by the movements of artificial wings , . 253 The aërial wave screw of the Author , Swallow in pursuit of insects , · 256 260 NORTHWESTERN UNIVERSITY LIBRARY ރ NORTHWESTERN UNIVERSITY LIBRARY : IN THE LIST OF ILLUSTRATIONS . xiii.
... produced by the movements of artificial wings , . 253 The aërial wave screw of the Author , Swallow in pursuit of insects , · 256 260 NORTHWESTERN UNIVERSITY LIBRARY ރ NORTHWESTERN UNIVERSITY LIBRARY : IN THE LIST OF ILLUSTRATIONS . xiii.
Página 7
... produced . The speed of an animal is determined by its shape , mass , power , and the density of the medium on or in which it Inoves . It is more difficult to walk on sand or snow than on a macadamized road . In like manner ( unless the ...
... produced . The speed of an animal is determined by its shape , mass , power , and the density of the medium on or in which it Inoves . It is more difficult to walk on sand or snow than on a macadamized road . In like manner ( unless the ...
Página 8
... produced , and the consequent want of sup- port . The land supplies the fulcrum for the levers formed by the extremities or travelling surfaces of animals with terrestrial habits ; the water furnishes the fulcrum for the levers formed ...
... produced , and the consequent want of sup- port . The land supplies the fulcrum for the levers formed by the extremities or travelling surfaces of animals with terrestrial habits ; the water furnishes the fulcrum for the levers formed ...
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