Animal Locomotion: Or, Walking, Swimming and Flying, with a Dissertation on AëronauticsD. Appleton, 1893 - 264 páginas |
Dentro del libro
Resultados 1-5 de 54
Página 12
... upward and forward curve . When the body descends , it describes a downward and forward curve , the wing being elevated in an upward and forward curve . The curves made by the wing and body in flight form , when united , waved lines ...
... upward and forward curve . When the body descends , it describes a downward and forward curve , the wing being elevated in an upward and forward curve . The curves made by the wing and body in flight form , when united , waved lines ...
Página 45
... upwards of six inches of extent of leverage and variation of fulcrum , and in the fore limb from the carpus to the toe - nails ( whose function in progression is not to be underrated ) upwards of three inches of leverage are found ...
... upwards of six inches of extent of leverage and variation of fulcrum , and in the fore limb from the carpus to the toe - nails ( whose function in progression is not to be underrated ) upwards of three inches of leverage are found ...
Página 53
... upward direction given to the crest of the ilium in man , is so great that it virtually ceases to be an angle . The bones of the superior extremities in man merit atten- tion from the fact that in walking and running they oscillate in ...
... upward direction given to the crest of the ilium in man , is so great that it virtually ceases to be an angle . The bones of the superior extremities in man merit atten- tion from the fact that in walking and running they oscillate in ...
Página 77
... upward , downward , and horizontal direction , by muscular efforts alone - an observation which may likewise be made ... upwards . 2 The air - bladder is wanting in the dermopteri , plagiostomi , and pleuronec tidæ . - Owen , op . cit ...
... upward , downward , and horizontal direction , by muscular efforts alone - an observation which may likewise be made ... upwards . 2 The air - bladder is wanting in the dermopteri , plagiostomi , and pleuronec tidæ . - Owen , op . cit ...
Página 79
... upward angle . When the extremities are made to move in a horizontal or slightly downward direction , they at once propel and support the body . When , however , they are made to act in an upward direction , as in diving , they submerge ...
... upward angle . When the extremities are made to move in a horizontal or slightly downward direction , they at once propel and support the body . When , however , they are made to act in an upward direction , as in diving , they submerge ...
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