Animal Locomotion: Or, Walking, Swimming, and Flying, with a Dissertation on AëronauticsH. S. King & Company, 1873 - 264 стор. |
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Сторінка 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 ...
Сторінка 53
... upward direction given to the crest of the ilium in man , is so great that it virtually ceases to be an angle . 1 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 . 1 The bones of the superior extremities in man merit atten- tion from the fact that in walking and running they oscillate in ...
Сторінка 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 ...
Сторінка 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 ...
Сторінка 80
... upwards , and a greater or less backward thrust given each time the hands reciprocate . The progress made at first is slow , but latterly very rapid , the rapidity increasing according to the momentum acquired . The swimmer , in ...
... upwards , and a greater or less backward thrust given each time the hands reciprocate . The progress made at first is slow , but latterly very rapid , the rapidity increasing according to the momentum acquired . The swimmer , in ...
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Animal Locomotion: Or, Walking, Swimming, and Flying, with a Dissertation on ... James Bell Pettigrew Попередній перегляд недоступний - 2016 |
Загальні терміни та фрази
action aërial albatross angle animals arms and legs arrangement artificial wave artificial wing ascends backwards ball-and-socket joint bat and bird biped blades body bones Borelli Compare with fig concave convex Crown 8vo depressed described downward dugong 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 ostrich pectoral fins pinion porpoise portion position posterior margin posterior or thin produced quadruped rapid remarkable resistance right arm root rotation sail screw sea-bear shoulder-joint side speed spiral swimming tail thick margin tion travelling surfaces trunk twisting universal joint upward direction upwards and forwards velocity vertical vibrate walking waved track weight wing descends
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