Animal Locomotion: Or, Walking, Swimming, and Flying, with a Dissertation on AëronauticsH. S. King & Company, 1873 - 264 стор. |
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Сторінка vii
... Rapidity of wing movements partly accounted for , 120 The wing area variable and in excess , 124 · The wing area decreases as the size and weight of the volant animal increases , 132 Wings , their form , etc. All wings screws ...
... Rapidity of wing movements partly accounted for , 120 The wing area variable and in excess , 124 · The wing area decreases as the size and weight of the volant animal increases , 132 Wings , their form , etc. All wings screws ...
Сторінка 6
... rapidity by the powerful strokes of its hind legs .-- ( Intro- duction to Entomology , 5th edit . , 1828 , p . 360. ) Nor should the remarkable discovery by Sir John Lubbock of a swimming insect ( Polynema natans ) , which uses its ...
... rapidity by the powerful strokes of its hind legs .-- ( Intro- duction to Entomology , 5th edit . , 1828 , p . 360. ) Nor should the remarkable discovery by Sir John Lubbock of a swimming insect ( Polynema natans ) , which uses its ...
Сторінка 21
... rapidity on the moving parts . It augments elasticity , diminishes shock , and indirectly begets continuity of movement . a . Angle formed by the femur with the ilium . b . Angle formed by the tibia and fibula with the femur . c . Angle ...
... rapidity on the moving parts . It augments elasticity , diminishes shock , and indirectly begets continuity of movement . a . Angle formed by the femur with the ilium . b . Angle formed by the tibia and fibula with the femur . c . Angle ...
Сторінка 24
... rapidity to secure speed , particularly in water and air . " Ligaments . - The office of the ligaments with respect to locomotion , is to restrict the degree of flexion , extension , and other motions of the limbs within definite limits ...
... rapidity to secure speed , particularly in water and air . " Ligaments . - The office of the ligaments with respect to locomotion , is to restrict the degree of flexion , extension , and other motions of the limbs within definite limits ...
Сторінка 46
... rapidity 1 The woodpeckers climb by the aid of the stiff feathers of their tails ; the legs and tail forming a firm basis of support . 2 In this order there are certain birds - the sparrows and thrushes , for example - which advance by ...
... rapidity 1 The woodpeckers climb by the aid of the stiff feathers of their tails ; the legs and tail forming a firm basis of support . 2 In this order there are certain birds - the sparrows and thrushes , for example - which advance by ...
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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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