Animal Locomotion: Or, Walking, Swimming and Flying, with a Dissertation on AëronauticsD. Appleton, 1893 - 264 páginas |
Dentro del libro
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Página vii
... produces a cross pulsation , Compound rotation of the wing , • 147 147 148 • 149 · The wing vibrates unequally with reference to a given line , Points wherein the screws formed by the wings differ from those in common use . 150 • 151 ...
... produces a cross pulsation , Compound rotation of the wing , • 147 147 148 • 149 · The wing vibrates unequally with reference to a given line , Points wherein the screws formed by the wings differ from those in common use . 150 • 151 ...
Página xii
... produced on the eye by the rapidly oscillat- Diagram in which the down and up strokes of the wing of the insect are analysed , 136 , 137 138 139 • 141 Diagrams illustrating the looped and waved tracks described by the wing of the insect ...
... produced on the eye by the rapidly oscillat- Diagram in which the down and up strokes of the wing of the insect are analysed , 136 , 137 138 139 • 141 Diagrams illustrating the looped and waved tracks described by the wing of the insect ...
Página xiii
... the currents produced by the movements of artificial wings , 253 The aërial wave screw of the Author , 256 Swallow in pursuit of insects , 260 IN THE CLUTCH OF THE ENEMY . ANIMAL LOCOMOTION . LIST OF ILLUSTRATIONS . xiii.
... the currents produced by the movements of artificial wings , 253 The aërial wave screw of the Author , 256 Swallow in pursuit of insects , 260 IN THE CLUTCH OF THE ENEMY . ANIMAL LOCOMOTION . 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 moves . 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 moves . 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 ...
Contenido
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Términos y frases comunes
action aërial albatross angle animal arms and legs arrangement artificial wave artificial wing ascends backwards bat and bird biped blades body bones Borelli Compare with fig concave 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 hind horizontal direction humerus inclined planes increased insect wing joint kite less lever limbs locomotion long axis manner Marey motion move movements muscles muscular muscular system natural wing nervures oblique oscillate pectoral fins pinion porpoise portion position posterior extremities posterior margin posterior or thin produced quadruped rapidity remarkable resistance reverse right arm root rotation sail screw sea-bear shoulder-joint side speed spiral swimming tail thick margin travelling surfaces trunk twisting universal joint upward direction upwards and forwards velocity vertical vertical direction vibrate walking waved track weight wing descends