Animal Locomotion: Or, Walking, Swimming, and Flying, with a Dissertation on AëronauticsH. S. King & Company, 1873 - 264 стор. |
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Сторінка viii
... strokes , Where the kite formed by the wing differs from the boy's kite , The angles formed by the wing during its ... stroke , 182 Flexion of the wing necessary to the flight of birds , Consideration of the forces which propel the ...
... strokes , Where the kite formed by the wing differs from the boy's kite , The angles formed by the wing during its ... stroke , 182 Flexion of the wing necessary to the flight of birds , Consideration of the forces which propel the ...
Сторінка ix
... stroke should be delivered down- wards and forwards , 195 The wing acts as an elevator , propeller , and sustainer , both during extension and flexion , 197 Flight divisible into four kinds , The flight of the Albatross compared to the ...
... stroke should be delivered down- wards and forwards , 195 The wing acts as an elevator , propeller , and sustainer , both during extension and flexion , 197 Flight divisible into four kinds , The flight of the Albatross compared to the ...
Сторінка 34
... stroke , and expanded during the effective or forward stroke . Due advantage is taken of this arrangement by the seal when swimming , the animal rotating on its long axis , so as to present the lower portion of the body and the feet ...
... stroke , and expanded during the effective or forward stroke . Due advantage is taken of this arrangement by the seal when swimming , the animal rotating on its long axis , so as to present the lower portion of the body and the feet ...
Сторінка 57
... stroke of the pendulum actually placing the foot upon the ground by a retrograde , descending movement . When the right leg with which we commenced is extended and firmly placed upon the ground , and the trunk has assumed a nearly ...
... stroke of the pendulum actually placing the foot upon the ground by a retrograde , descending movement . When the right leg with which we commenced is extended and firmly placed upon the ground , and the trunk has assumed a nearly ...
Сторінка 67
... stroke , i.e. when it is flexed and carried away from the axis of motion ( d c ƒ ) than it would during the forward stroke , or and carried towards the axis of motion . the concave surface of the tail is applied what is termed the back ...
... stroke , i.e. when it is flexed and carried away from the axis of motion ( d c ƒ ) than it would during the forward stroke , or and carried towards the axis of motion . the concave surface of the tail is applied what is termed the back ...
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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 albatross angle animals arms and legs arrangement artificial wave artificial wing ascends backwards ball-and-socket joint bat and bird biped blades body bones Borelli Compare with fig concave convex Crown 8vo depressed described downward dugong 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 ostrich pectoral fins pinion porpoise portion position posterior margin posterior or thin produced quadruped rapid remarkable resistance right arm 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 vibrate walking waved track weight wing descends
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