Animal Locomotion: Or Walking, Swimming, and Flying, with a Dissertation on AeronauticsD. Appleton, 1882 - 264 páginas |
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Página xvi
... less interesting than organic ones . The disaffected growl of the thunder , and the ghastly lightning flash , scorching and withering whatever it touches , forcibly remind us that everything above , below , and around is in motion . Of ...
... less interesting than organic ones . The disaffected growl of the thunder , and the ghastly lightning flash , scorching and withering whatever it touches , forcibly remind us that everything above , below , and around is in motion . Of ...
Página 7
... less dense . It , however , does not essentially differ from the other two , and I shall be able to show in the following pages , that the materials and forces employed in flight are literally the same as those employed in walking and ...
... less dense . It , however , does not essentially differ from the other two , and I shall be able to show in the following pages , that the materials and forces employed in flight are literally the same as those employed in walking and ...
Página 8
... less dense and the fulcrum more movable . Thus terrestrial animals have smaller travelling surfaces than amphibia , amphibia than fishes , and fishes than insects , bats , and birds . Another point to be studied in connexion with ...
... less dense and the fulcrum more movable . Thus terrestrial animals have smaller travelling surfaces than amphibia , amphibia than fishes , and fishes than insects , bats , and birds . Another point to be studied in connexion with ...
Página 10
... less symmetrical ellipse . If the curves formed by the legs and arms respectively be united , they form waved lines which intersect at every step . This arises from the fact that the curves formed by the right and left legs are found ...
... less symmetrical ellipse . If the curves formed by the legs and arms respectively be united , they form waved lines which intersect at every step . This arises from the fact that the curves formed by the right and left legs are found ...
Página 11
... less than two , a caudal and a cephalic one . They may and do exceed this number in the long - bodied fishes . The tail of the fish is made to vibrate pendulum fashion on either side of the spine , when it is lashed to and fro in the ...
... less than two , a caudal and a cephalic one . They may and do exceed this number in the long - bodied fishes . The tail of the fish is made to vibrate pendulum fashion on either side of the spine , when it is lashed to and fro in the ...
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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