Animal Locomotion: Or, Walking, Swimming and Flying, with a Dissertation on AëronauticsD. Appleton, 1893 - 264 páginas |
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Página vi
... force of gravity . Resistance of fluids . Mechanical effects of fluids on animals immersed in them . Centre of gravity , . The three orders of lever , Passive organs of locomotion . Bones , Joints , 8228 18 19 21 23 Ligaments . Effects ...
... force of gravity . Resistance of fluids . Mechanical effects of fluids on animals immersed in them . Centre of gravity , . The three orders of lever , Passive organs of locomotion . Bones , Joints , 8228 18 19 21 23 Ligaments . Effects ...
Página viii
... forces which propel the wings of insects ,. Speed attained by insects , Consideration of the forces which propel the wings of bats and Lax condition of the shoulder - joint in bats and birds , The wing flexed and partly elevated by the ...
... forces which propel the wings of insects ,. Speed attained by insects , Consideration of the forces which propel the wings of bats and Lax condition of the shoulder - joint in bats and birds , The wing flexed and partly elevated by the ...
Página ix
... the Author , 242 How to apply artificial wings to the air , 245 As to the nature of the forces required for propelling artificial wings , 246 Necessity for supplying the roots of artificial wings with elastic CONTENTS . ix.
... the Author , 242 How to apply artificial wings to the air , 245 As to the nature of the forces required for propelling artificial wings , 246 Necessity for supplying the roots of artificial wings with elastic CONTENTS . ix.
Página 7
... forces employed in flight are literally the same as those employed in walking and swimming . This is an encouraging circum- stance as far as artificial flight is concerned , as the same ele- ments and forces employed in constructing ...
... forces employed in flight are literally the same as those employed in walking and swimming . This is an encouraging circum- stance as far as artificial flight is concerned , as the same ele- ments and forces employed in constructing ...
Página 17
... force . Secondly , any change effected in the quiescence or motion of a body is in the direction of the force impressed , and is pro- portional to it in quantity . Thirdly , reaction is always equal and contrary to action , or the ...
... force . Secondly , any change effected in the quiescence or motion of a body is in the direction of the force impressed , and is pro- portional to it in quantity . Thirdly , reaction is always equal and contrary to action , or the ...
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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