Animal Locomotion: Or, Walking, Swimming and Flying, with a Dissertation on AëronauticsD. Appleton, 1893 - 264 páginas |
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Página vii
... ellipse , ' The wing capable of change of form in all its parts , The wing during its vibration produces a cross pulsation , Compound rotation of the wing , • 147 147 148 • 149 · The wing vibrates unequally with reference to a given ...
... ellipse , ' The wing capable of change of form in all its parts , The wing during its vibration produces a cross pulsation , Compound rotation of the wing , • 147 147 148 • 149 · The wing vibrates unequally with reference to a given ...
Página 10
... 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 alternately on ...
... 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 alternately on ...
Página 37
... ellipses . Compare with fig . 19 , p . 39. - Original . In this there is a double purpose - the limited area pre- sented to the ground affording the animal sufficient support and leverage , and enabling it to disentangle its feet with ...
... ellipses . Compare with fig . 19 , p . 39. - Original . In this there is a double purpose - the limited area pre- sented to the ground affording the animal sufficient support and leverage , and enabling it to disentangle its feet with ...
Página 39
... ellipses . Compare with fig . 18 , p . 37. - Original . In the hexapod insects , according to Müller , the fore and hind foot of the one side and the middle one of the opposite side move together to make one step , the three ...
... ellipses . Compare with fig . 18 , p . 37. - Original . In the hexapod insects , according to Müller , the fore and hind foot of the one side and the middle one of the opposite side move together to make one step , the three ...
Página 81
... ellipses ; an arrangement which , as explained , increases the area of support furnished by the moving parts . The ellipses are shown at fig . 38 ; the continuous lines repre- senting extension , the dotted lines flexion . 2 ༢ O Fig ...
... ellipses ; an arrangement which , as explained , increases the area of support furnished by the moving parts . The ellipses are shown at fig . 38 ; the continuous lines repre- senting extension , the dotted lines flexion . 2 ༢ O Fig ...
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Palavras e frases frequentes
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