منابع مشابه
Artificial insect wings
The development of flapping-wing micro air vehicles (MAVs) demands a systematic exploration of the available design space to identify ways in which the unsteady mechanisms governing flapping-wing flight can best be utilized for producing optimal thrust or maneuverability. Mimicking the wing kinematics of biological flight requires examining the potential effects of wing morphology on flight per...
متن کاملInsect evolution: How did insect wings originate?
Recent developmental studies aimed at elucidating the evolutionary origin of insect wings highlight the difficulties of identifying homology between dramatically different structures.
متن کاملStiffness of desiccating insect wings.
The stiffness of insect wings is typically determined through experimental measurements. Such experiments are performed on wings removed from insects. However, the wings are subject to desiccation which typically leads to an increase in their stiffness. Although this effect of desiccation is well known, a comprehensive study of the rate of change in stiffness of desiccating insect wings would b...
متن کاملVeins Improve Fracture Toughness of Insect Wings
During the lifetime of a flying insect, its wings are subjected to mechanical forces and deformations for millions of cycles. Defects in the micrometre thin membranes or veins may reduce the insect's flight performance. How do insects prevent crack related material failure in their wings and what role does the characteristic vein pattern play? Fracture toughness is a parameter, which characteri...
متن کاملInsect Evolution: The Origin of Wings
The debate on the evolution of wings in insects has reached a new level. The study of primitive fossil insect nymphs has revealed that wings developed from a combination of the dorsal part of the thorax and the body wall.
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ژورنال
عنوان ژورنال: Scientific American
سال: 1904
ISSN: 0036-8733
DOI: 10.1038/scientificamerican10151904-261