Animal Locomotion: Or, Walking, Swimming, and Flying, with a Dissertation on AëronauticsH. S. King & Company, 1873 - 264 páginas |
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Página vi
... arranged in longitu- muscles ; muscular waves . dinal , transverse , and oblique spiral lines , The bones of the extremities twisted and spiral , 24 25-27 28 29 31 33 • • 34-36 Muscles take precedence of bones in animal movements ...
... arranged in longitu- muscles ; muscular waves . dinal , transverse , and oblique spiral lines , The bones of the extremities twisted and spiral , 24 25-27 28 29 31 33 • • 34-36 Muscles take precedence of bones in animal movements ...
Página viii
... arrangement of the primary , secondary , and tertiary feathers , etc. , 180 • Flexion of the wing necessary to the flight of birds , The wing of the bird not always opened up to the same extent in the up stroke , 182 183 Consideration ...
... arrangement of the primary , secondary , and tertiary feathers , etc. , 180 • Flexion of the wing necessary to the flight of birds , The wing of the bird not always opened up to the same extent in the up stroke , 182 183 Consideration ...
Página 21
... arrangement in- creases the leverage of the muscular system and confers great rapidity on the moving parts . It augments elasticity , diminishes shock , and indirectly begets continuity of movement . a . Angle formed by the femur with ...
... arrangement in- creases the leverage of the muscular system and confers great rapidity on the moving parts . It augments elasticity , diminishes shock , and indirectly begets continuity of movement . a . Angle formed by the femur with ...
Página 22
... arrangement which affords large surfaces for the attachment of the powerful muscles of locomotion . The bones of birds in many cases are not filled with marrow but with air , a circumstance which insures that they shall be very strong ...
... arrangement which affords large surfaces for the attachment of the powerful muscles of locomotion . The bones of birds in many cases are not filled with marrow but with air , a circumstance which insures that they shall be very strong ...
Página 23
... extremities , are , as a rule , twisted levers , and act after the manner of screws . This arrangement enables the higher 1 Bishop , op . cit . animals to apply their travelling surfaces to the media on INTRODUCTION . 23 Joints,
... extremities , are , as a rule , twisted levers , and act after the manner of screws . This arrangement enables the higher 1 Bishop , op . cit . animals to apply their travelling surfaces to the media on INTRODUCTION . 23 Joints,
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Animal Locomotion: Or, Walking, Swimming, and Flying, with a Dissertation on ... James Bell Pettigrew Sin vista previa disponible - 2016 |
Términos y frases comunes
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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