Animal Locomotion: Or, Walking, Swimming, and Flying, with a Dissertation on AëronauticsH. S. King & Company, 1873 - 264 páginas |
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Página vii
... increases , 132 Wings , their form , etc. All wings screws , structurally and functionally , 136 The wing , during its action , reverses its planes , and describes a figure - of - 8 track in space , 140 The wing , when advancing with ...
... increases , 132 Wings , their form , etc. All wings screws , structurally and functionally , 136 The wing , during its action , reverses its planes , and describes a figure - of - 8 track in space , 140 The wing , when advancing with ...
Página 7
... increasing as the medium to be traversed becomes less dense . It , however , does not essentially differ from the other two , and I shall be able to show in the following pages , that the materials and forces employed in flight are ...
... increasing as the medium to be traversed becomes less dense . It , however , does not essentially differ from the other two , and I shall be able to show in the following pages , that the materials and forces employed in flight are ...
Página 8
... increasing in size as the medium to be traversed becomes less dense and the fulcrum more movable . Thus terrestrial animals have smaller travelling surfaces than amphibia , amphibia than fishes , and fishes than insects , bats , and ...
... increasing in size as the medium to be traversed becomes less dense and the fulcrum more movable . Thus terrestrial animals have smaller travelling surfaces than amphibia , amphibia than fishes , and fishes than insects , bats , and ...
Página 27
... increased . This alternate diminution and increase of the angles formed by the osseous levers produce the movements ... increases with their length , and vice versa . It is a curious circumstance , and worthy the attention of those in ...
... increased . This alternate diminution and increase of the angles formed by the osseous levers produce the movements ... increases with their length , and vice versa . It is a curious circumstance , and worthy the attention of those in ...
Página 34
... increasing as the oblique muscles preponderate . The combination of ball - and - socket and hinge - joints , with their con- comitant oblique and longitudinal muscular cycles ( the former occurring in their most perfect forms where the ...
... increasing as the oblique muscles preponderate . The combination of ball - and - socket and hinge - joints , with their con- comitant oblique and longitudinal muscular cycles ( the former occurring in their most perfect forms where the ...
Otras ediciones - Ver todas
Animal Locomotion: Or, Walking, Swimming, and Flying, with a Dissertation on ... James Bell Pettigrew Sin vista previa disponible - 2016 |
Términos y frases comunes
action aërial animals arms and legs arrangement artificial wave artificial wing ascends axes backwards bat and bird beetle biting surface blades body bones Borelli Compare with fig concave convex coracoid Crown 8vo depressed described downward dugong elastic ligaments elbow-joint elevating and propelling ellipse elytra extension extremities feet fins fish flexed flexible flexion flight flying foot gannet horizontal direction humerus inclined planes increased insect insect wing joint kite less lever limbs long axis manner Marey membranous motion move movements muscles muscular natural wing nervures oblique oscillate pectoral fins pinion porpoise portions position posterior margin posterior or thin primary produced quadruped rapid reciprocating Red-legged Partridge remarkable resistance root rotating scapula screw secondary feathers shoulder-joint side spiral swimming tail thick margin tion trunk twisting universal joint upward direction upwards and forwards velocity vertical vertical direction vibrate walking wave wing waved track weight wing descends
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