Animal Locomotion: Or, Walking, Swimming, and Flying, with a Dissertation on AëronauticsH. S. King & Company, 1873 - 264 стор. |
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Сторінка viii
... angles formed by the wing during its vibrations , 166 167 The body and wings move in opposite curves , 168 THE WINGS OF INSECTS , BATS , AND BIRDS . Elytra or wing cases and membranous wings ; their shape and uses , THE WINGS OF BATS ...
... angles formed by the wing during its vibrations , 166 167 The body and wings move in opposite curves , 168 THE WINGS OF INSECTS , BATS , AND BIRDS . Elytra or wing cases and membranous wings ; their shape and uses , THE WINGS OF BATS ...
Сторінка 21
... Angle formed by the femur with the ilium . b . Angle formed by the tibia and fibula with the femur . c . Angle formed by the cannon bone with the tibia and fibula . d . Angle formed by the phalanges with the cannon bone . e . Angle ...
... Angle formed by the femur with the ilium . b . Angle formed by the tibia and fibula with the femur . c . Angle formed by the cannon bone with the tibia and fibula . d . Angle formed by the phalanges with the cannon bone . e . Angle ...
Сторінка 22
... angle is formed by the head and neck of the bone with the axis of the body , which prevents the weight of the superstructure coming vertically upon the shaft , converts the bone into an elastic arch , and renders it capable of ...
... angle is formed by the head and neck of the bone with the axis of the body , which prevents the weight of the superstructure coming vertically upon the shaft , converts the bone into an elastic arch , and renders it capable of ...
Сторінка 27
... angles formed by the osseous levers are diminished ; by the closing or shortening of the extensor halves of the cycles , and the opening or elongation of the flexor halves , the angles formed by the osseous levers are increased . This ...
... angles formed by the osseous levers are diminished ; by the closing or shortening of the extensor halves of the cycles , and the opening or elongation of the flexor halves , the angles formed by the osseous levers are increased . This ...
Сторінка 31
... angles , the oblique ones tending to cross at various angles , as in the letter X. The crossing is seen to most advantage in the deep muscles . In order to understand the twisting which occurs to a greater or less extent in the bodies ...
... angles , the oblique ones tending to cross at various angles , as in the letter X. The crossing is seen to most advantage in the deep muscles . In order to understand the twisting which occurs to a greater or less extent in the bodies ...
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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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