Animal Locomotion: Or, Walking, Swimming and Flying, with a Dissertation on AëronauticsD. Appleton, 1893 - 264 páginas |
Dentro del libro
Resultados 1-5 de 39
Página xvi
... greatly differ from the limb of the quadruped , the fin of the fish , and the wing of the bird ; but , as I shall show in the sequel , the curves which go to form the wheel and the screw are found in the travelling surfaces of all ...
... greatly differ from the limb of the quadruped , the fin of the fish , and the wing of the bird ; but , as I shall show in the sequel , the curves which go to form the wheel and the screw are found in the travelling surfaces of all ...
Página 22
... greatly favoured by the tendency which the body once set in motion has to advance in a straight line . The form , strength , density , and elasticity of the skele- ton varies in relation to the bulk and locomotive power of the animal ...
... greatly favoured by the tendency which the body once set in motion has to advance in a straight line . The form , strength , density , and elasticity of the skele- ton varies in relation to the bulk and locomotive power of the animal ...
Página 34
... greatly diminished and a comparatively non - resisting one the next . This arrange- ment secures the subtlety and nicety of motion demanded by the several media at different stages of progression . The travelling surfaces of Animals ...
... greatly diminished and a comparatively non - resisting one the next . This arrange- ment secures the subtlety and nicety of motion demanded by the several media at different stages of progression . The travelling surfaces of Animals ...
Página 35
... greatly increased , the ribs affording the necessary support in the Dragon or Flying Lizard ( fig . 15 ) , the anterior and posterior extremities and tail , in the Flying Lemur ( fig . 16 ) and Bat ( fig . 17 , p . 36 ) . d b b b b a ...
... greatly increased , the ribs affording the necessary support in the Dragon or Flying Lizard ( fig . 15 ) , the anterior and posterior extremities and tail , in the Flying Lemur ( fig . 16 ) and Bat ( fig . 17 , p . 36 ) . d b b b b a ...
Página 36
... greatly elongated anterior extremities , with their enormous fingers and out- spreading membranes , completely unfitting it for terrestrial progression . It is instructive as showing that flight may - be attained , without the aid of ...
... greatly elongated anterior extremities , with their enormous fingers and out- spreading membranes , completely unfitting it for terrestrial progression . It is instructive as showing that flight may - be attained , without the aid of ...
Contenido
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Términos y frases comunes
action aërial albatross angle animal arms and legs arrangement artificial wave artificial wing ascends backwards bat and bird biped blades body bones Borelli Compare with fig concave depressed described downward dugong effective stroke elastic ligaments elbow-joint elevating and propelling ellipse elytra extended feet fins fish flexed flexible flexion flight flying foot force gannet glide hind horizontal direction humerus inclined planes increased insect wing joint kite less lever limbs locomotion long axis manner Marey motion move movements muscles muscular muscular system natural wing nervures oblique oscillate pectoral fins pinion porpoise portion position posterior extremities posterior margin posterior or thin produced quadruped rapidity remarkable resistance reverse right arm root rotation sail screw sea-bear shoulder-joint side speed spiral swimming tail thick margin travelling surfaces trunk twisting universal joint upward direction upwards and forwards velocity vertical vertical direction vibrate walking waved track weight wing descends