Animal Locomotion: Or Walking, Swimming, and Flying, with a Dissertation on AeronauticsD. Appleton, 1882 - 264 páginas |
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Página 15
... less completely at every stroke . That the wing describes a figure - of - 8 track in space when the flying animal is artificially fixed . That the wing , when the flying animal is progressing at 1 " On the various modes of Flight in ...
... less completely at every stroke . That the wing describes a figure - of - 8 track in space when the flying animal is artificially fixed . That the wing , when the flying animal is progressing at 1 " On the various modes of Flight in ...
Página 18
... less in proportion to the density and tenacity of the fluid , and the figure , superficies , and velocity of the animal . An inquiry into the amount and nature of the resistance of air and water to the progression of animals will also ...
... less in proportion to the density and tenacity of the fluid , and the figure , superficies , and velocity of the animal . An inquiry into the amount and nature of the resistance of air and water to the progression of animals will also ...
Página 20
... less the power . F B P A W FIG . 2 . In the third order of lever the power acts between the prop and the resistance ( fig . 3 ) , where also P : W :: BF : AF , and the pressure on the fulcrum is P - W , or the power less the weight ...
... less the power . F B P A W FIG . 2 . In the third order of lever the power acts between the prop and the resistance ( fig . 3 ) , where also P : W :: BF : AF , and the pressure on the fulcrum is P - W , or the power less the weight ...
Página 24
... less fully , the muscular arrangements of all the animals whose movements I propose to analyse . This is the more desirable , as the movements exhibited by animals of the higher types are directly referable to changes occurring in their ...
... less fully , the muscular arrangements of all the animals whose movements I propose to analyse . This is the more desirable , as the movements exhibited by animals of the higher types are directly referable to changes occurring in their ...
Página 25
... less horizontal direction ; the long axes of the sarcous elements of the triceps ( j ) being arranged in a nearly vertical direction . When the fore- arm is extended , the long axes of the sarcous elements of the biceps and triceps are ...
... less horizontal direction ; the long axes of the sarcous elements of the triceps ( j ) being arranged in a nearly vertical direction . When the fore- arm is extended , the long axes of the sarcous elements of the biceps and triceps are ...
Outras edições - Ver tudo
Animal Locomotion: Or, Walking, Swimming, and Flying, with a Dissertation on ... James Bell Pettigrew Visualização integral - 1885 |
Animal Locomotion, Or, Walking, Swimming, and Flying: With a Dissertation on ... James Bell Pettigrew Visualização integral - 1874 |
Animal Locomotion: Or, Walking, Swimming and Flying, with a Dissertation on ... James Bell Pettigrew Visualização integral - 1893 |
Palavras e frases frequentes
action aërial animals arrangement artificial wave wing artificial wing ascends ball-and-socket joint bat and bird biped blades body bones Borelli Compare with fig concave dead points depressed described downward dugong elastic bands elastic ligaments elbow-joint elevating and propelling elytra extended feathers feet fish flexed flexion flight flying foot force fore gannet gliding gravity hind horizontal direction humerus inclined planes increased insect insect wing kite less lever limbs locomotion long axis machine manner Marey motion move movements muscles muscular muscular system natural wing oblique oscillate ostrich pectoral fins pinion piston porpoise portions position posterior margin posterior or thin produced quadruped rapidity remarkable resistance reverse rigid root rotation sail screw shoulder-joint side Sir George Cayley speed spiral superior band swimming tail thick margin tion trunk universal joint upward direction upwards and forwards velocity vertical vibrate walking waved track wedge weight wing descends