Animal Locomotion: Or, Walking, Swimming and Flying, with a Dissertation on AëronauticsD. Appleton, 1893 - 264 páginas |
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Resultados 1-5 de 33
Página viii
... wing at all times thoroughly under control , The natural wing when elevated and depressed must move for- wards , The wing ascends when the body descends , and vice versa , The wing acts upon yielding fulcra , 154 156 159 165 The wing ...
... wing at all times thoroughly under control , The natural wing when elevated and depressed must move for- wards , The wing ascends when the body descends , and vice versa , The wing acts upon yielding fulcra , 154 156 159 165 The wing ...
Página ix
... wing , to what owing , PAGE 193 194 Reasons why the effective stroke should be delivered down- wards and forwards ... descending , turning , etc. , 201 The flight of birds referable to muscular exertion and weight ,. Lifting capacity of birds ...
... wing , to what owing , PAGE 193 194 Reasons why the effective stroke should be delivered down- wards and forwards ... descending , turning , etc. , 201 The flight of birds referable to muscular exertion and weight ,. Lifting capacity of birds ...
Página 12
... wing of the bird , and the extremity of the biped and quadruped , are screws ... descends to make the up and down strokes , it rotates within the facettes or ... wing in flying correspond to the steps made by the extremities in walking ...
... wing of the bird , and the extremity of the biped and quadruped , are screws ... descends to make the up and down strokes , it rotates within the facettes or ... wing in flying correspond to the steps made by the extremities in walking ...
Página 100
... descending beneath the level of the body of the fish . In this respect the flying - fin of the fish differs slightly from the wing ... descend below the body , account for the admitted absence of beating , and have no doubt originated the ...
... descending beneath the level of the body of the fish . In this respect the flying - fin of the fish differs slightly from the wing ... descend below the body , account for the admitted absence of beating , and have no doubt originated the ...
Página 104
... wing , where its elevat- ing and propelling power is greatest . This arrangement in- sures that the large quantity ... descends , as shown at p ' , the air ( = fulcrum ƒ ' ) resists its downward passage , and forces the body ( b ) , or its ...
... wing , where its elevat- ing and propelling power is greatest . This arrangement in- sures that the large quantity ... descends , as shown at p ' , the air ( = fulcrum ƒ ' ) resists its downward passage , and forces the body ( b ) , or its ...
Índice
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219 | |
98 | |
110 | |
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132 | |
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154 | |
165 | |
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263 | |
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