Animal Locomotion: Or, Walking, Swimming, and Flying, with a Dissertation on AëronauticsD. Appleton, 1885 - 264 páginas |
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Página 134
... gannet and heron . The following de- tails of weight , measurement , etc. , of the gannet were supplied by an adult specimen which I dissected during the winter of 1869. Entire weight , 7 lbs . ( minus 3 ounces ) ; length of body from ...
... gannet and heron . The following de- tails of weight , measurement , etc. , of the gannet were supplied by an adult specimen which I dissected during the winter of 1869. Entire weight , 7 lbs . ( minus 3 ounces ) ; length of body from ...
Página 169
... gannet throws itself from a cliff , the inertia of the trunk at once comes into play , and relieves the bird from those herculean exertions required to raise it from the water when it is once fairly settled thereon . A swallow dropping ...
... gannet throws itself from a cliff , the inertia of the trunk at once comes into play , and relieves the bird from those herculean exertions required to raise it from the water when it is once fairly settled thereon . A swallow dropping ...
Página 194
... gannets , and unusually elongated in the albatross . In the golden eagle it is also seen to be of great length . " -- Macgillivray's British Birds , vol . i . p . 30 . 176 ) , a form of pinion usually associated with 194 ANIMAL ...
... gannets , and unusually elongated in the albatross . In the golden eagle it is also seen to be of great length . " -- Macgillivray's British Birds , vol . i . p . 30 . 176 ) , a form of pinion usually associated with 194 ANIMAL ...
Página 204
... gannet , precipitate themselves from incredible heights , and drop into the water with the velocity of a meteorite - the momentum which they acquire during their descent materially aiding them in their subaqueous flight . They emerge ...
... gannet , precipitate themselves from incredible heights , and drop into the water with the velocity of a meteorite - the momentum which they acquire during their descent materially aiding them in their subaqueous flight . They emerge ...
Página 213
... gannet , it will be remembered ( p . 134 ) , being less than one square foot of wing for every two pounds of body . 1 " Aerial Locomotion , " by F. H. Wenham .-- World of Science , June 1867 . The model was forced by its propellers ...
... gannet , it will be remembered ( p . 134 ) , being less than one square foot of wing for every two pounds of body . 1 " Aerial Locomotion , " by F. H. Wenham .-- World of Science , June 1867 . The model was forced by its propellers ...
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Animal Locomotion: Or Walking, Swimming, and Flying, with a Dissertation on ... James Bell Pettigrew Visualização integral - 1882 |
Animal Locomotion, Or, Walking, Swimming, and Flying: With a Dissertation on ... James Bell Pettigrew Visualização integral - 1874 |
Animal Locomotion: Or, Walking, Swimming and Flying, with a Dissertation on ... James Bell Pettigrew Visualização integral - 1893 |
Palavras e frases frequentes
action aërial albatross angle animals arms and legs arrangement artificial wave artificial wing ascends backwards bat and bird biped blades body bones Borelli Compare with fig concave convex 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 horizontal direction humerus inclined planes increased insect insect wing joint kite less levers limbs locomotion long axis manner Marey motion move movements muscles muscular muscular system natural wing nervures oblique oscillate pectoral pectoral fins pinion porpoise portion position posterior margin posterior or thin produced quadruped rapidity remarkable resistance reverse 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 vertical direction vibrate walking waved track weight wing descends