Animal Locomotion: Or, Walking, Swimming and Flying, with a Dissertation on AëronauticsD. Appleton, 1893 - 264 páginas |
Dentro del libro
Resultados 1-5 de 48
Página 12
... compare the bones of the wing of a bird with the bones of the arm of a man , or those of the fore - leg of an elephant , or any other quadruped . In either case the bones are twisted upon themselves like the screw of an augur . The tail ...
... compare the bones of the wing of a bird with the bones of the arm of a man , or those of the fore - leg of an elephant , or any other quadruped . In either case the bones are twisted upon themselves like the screw of an augur . The tail ...
Página 13
... be dispensed with as in this case , the weight of the animal acting upon the inclined planes formed by the wings gets up the initial velocity . By comparing the flipper of the seal , sea - INTRODUCTION . 13 Aerial creatures.
... be dispensed with as in this case , the weight of the animal acting upon the inclined planes formed by the wings gets up the initial velocity . By comparing the flipper of the seal , sea - INTRODUCTION . 13 Aerial creatures.
Página 14
... comparing the flipper of the seal , sea - bear , and walrus with the fin and tail of the fish , whale , porpoise , etc .; and the wing of the penguin ( a bird which is incapable of flight , and can only swim and dive ) with the wing of ...
... comparing the flipper of the seal , sea - bear , and walrus with the fin and tail of the fish , whale , porpoise , etc .; and the wing of the penguin ( a bird which is incapable of flight , and can only swim and dive ) with the wing of ...
Página 28
... compare the bones re- moved ( say the bones of the anterior extremity of a quad- ruped or bird ) with the cast obtained from the cavity of a hollow muscle ( say the left ventricle of the heart of the mammal ) , I find that the bones and ...
... compare the bones re- moved ( say the bones of the anterior extremity of a quad- ruped or bird ) with the cast obtained from the cavity of a hollow muscle ( say the left ventricle of the heart of the mammal ) , I find that the bones and ...
Página 36
... Compare with figures from 10 to 14 , p . 34 . r Arm of bat ; d forearm of bat ; ef , nn n hand of bat . - Original . Although no lizard is at present known to fly , there can be little doubt that the extinct Pterodactyles ( which ...
... Compare with figures from 10 to 14 , p . 34 . r Arm of bat ; d forearm of bat ; ef , nn n hand of bat . - Original . Although no lizard is at present known to fly , there can be little doubt that the extinct Pterodactyles ( which ...
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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