Animal Locomotion: Or, Walking, Swimming, and Flying, with a Dissertation on AëronauticsH. S. King & Company, 1873 - 264 стор. |
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Сторінка x
... propeller , 256 A new form of aerial screw , 256 The aërial wave screw operates upon water , 257 The sculling action of the wing , 231 CONCLUDING REMARKS , 258 LIST OF ILLUSTRATIONS . The Engravings are , with few. X CONTENTS .
... propeller , 256 A new form of aerial screw , 256 The aërial wave screw operates upon water , 257 The sculling action of the wing , 231 CONCLUDING REMARKS , 258 LIST OF ILLUSTRATIONS . The Engravings are , with few. X CONTENTS .
Сторінка 3
... operate , whether this be the comparatively unyielding earth , the mobile water , or the still more mobile air . Take away this life suddenly -the quadruped falls downwards , the fish ( if it be not speci- ally provided with a swimming ...
... operate , whether this be the comparatively unyielding earth , the mobile water , or the still more mobile air . Take away this life suddenly -the quadruped falls downwards , the fish ( if it be not speci- ally provided with a swimming ...
Сторінка 5
... operate— the wing acting in those very curves into which the atmo- sphere is naturally thrown in the transmission of sound . Can it be that the animate and inanimate world reciprocate , and that animal bodies are made to impress the ...
... operate— the wing acting in those very curves into which the atmo- sphere is naturally thrown in the transmission of sound . Can it be that the animate and inanimate world reciprocate , and that animal bodies are made to impress the ...
Сторінка 14
... operate upon the water and air by a wedge - action after the manner of twisted or double inclined planes . The twisted inclined planes act upon the air and water by means of curved surfaces , the curved surfaces reversing ...
... operate upon the water and air by a wedge - action after the manner of twisted or double inclined planes . The twisted inclined planes act upon the air and water by means of curved surfaces , the curved surfaces reversing ...
Сторінка 24
... operate at any degree of obliquity so as to obtain a maximum of support or propulsion with a minimum of slip . If the travelling surfaces of animals did not form screws structurally aud functionally , they could neither seize nor let go ...
... operate at any degree of obliquity so as to obtain a maximum of support or propulsion with a minimum of slip . If the travelling surfaces of animals did not form screws structurally aud functionally , they could neither seize nor let go ...
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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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