Animal Locomotion: Or Walking, Swimming, and Flying, with a Dissertation on AeronauticsD. Appleton, 1882 - 264 páginas |
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Página 10
... arms as well as in the legs , the right arm swinging before the body when the right leg swings behind it , and the converse . The right leg and left arm advance simultaneously , and alternate with the left leg and right arm , which ...
... arms as well as in the legs , the right arm swinging before the body when the right leg swings behind it , and the converse . The right leg and left arm advance simultaneously , and alternate with the left leg and right arm , which ...
Página 20
... arms and legs of animals . To include the weight of the lever we have the following equations : P. AF + AF . & AF = W. BF + BF . 1 BF ; in the first order , where AF and BF represent the weights of these portions of the lever ...
... arms and legs of animals . To include the weight of the lever we have the following equations : P. AF + AF . & AF = W. BF + BF . 1 BF ; in the first order , where AF and BF represent the weights of these portions of the lever ...
Página 38
... arms of the cuttle - fish . The movements of the extremities in land animals vary considerably . In the kangaroo and ... legs and pig As a consequence these animals descend declivities with difficulty 38 ANIMAL LOCOMOTION .
... arms of the cuttle - fish . The movements of the extremities in land animals vary considerably . In the kangaroo and ... legs and pig As a consequence these animals descend declivities with difficulty 38 ANIMAL LOCOMOTION .
Página 39
... leg ( t ) and right arm ( u ) , which likewise ad- vance together to form a second step . The continuous line ( r , t ) gives the waved track made by the legs ; the interrupted line ( s , u ) that made by the arms . The curves made by the ...
... leg ( t ) and right arm ( u ) , which likewise ad- vance together to form a second step . The continuous line ( r , t ) gives the waved track made by the legs ; the interrupted line ( s , u ) that made by the arms . The curves made by the ...
Página 49
... arms and carrying them on a level with their chest ( fig . 28 , p . 62 ) . It would seem that in rapid running there ... legs . In running the neck is stretched , the body inclined forward , and the legs moved alternately and with great ...
... arms and carrying them on a level with their chest ( fig . 28 , p . 62 ) . It would seem that in rapid running there ... legs . In running the neck is stretched , the body inclined forward , and the legs moved alternately and with great ...
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