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The wingbox is so called since, on many designs, the combination of the forward and rear wing spars and the upper and lower wing skins together form a natural "box" shape running through the wing. [1] While internal wing structure commonly provides much of the strength via a combination of spars, ribs and stringers, the external skin typically ...
Also defined: outer wing. The inner wing of a bird is that portion of the wing stretching from its connection to the body and through the "wrist" joint. The outer wing stretches from the wrist to the wingtip. [262] iris The coloured outer ring that surrounds a bird's pupil. Though brown predominates, the iris may be of or include a variety of ...
Different shapes correspond to different trade-offs between advantages such as speed, low energy use, and maneuverability. [4] [5] Two important parameters are the aspect ratio and wing loading. Aspect ratio is the ratio of wingspan to the mean of its chord (or the square of the wingspan divided by wing area). Wing loading is the ratio of ...
Joined wing: a tandem-wing layout in which the front low wing sweeps back and/or the rear high wing sweeps forwards such that they join at or near the tips to form a continuous surface in a hollow diamond or triangle shape. [7] The Ligeti Stratos is a rare example. [8] Rhomboidal wing: a
Wing structure and colouration often vary with morphs, such as in the aphids, migratory phases of locusts and polymorphic butterflies. At rest, the wings may be held flat, or folded a number of times along specific patterns; most typically, it is the hindwings which are folded, but in a few groups such as the vespid wasps, it is the forewings.
Some young Americans had a tough time finding a job last year. Companies were slow to hire in 2024 as workers quit their jobs less frequently, according to government data — a far cry from the ...
A Washington, D.C. man has been arrested for threatening flight attendants on a United Airlines plane traveling from Houston to New Jersey. Kedus Yacob Damtew, 38, was charged with one count of ...
This is a KFF Health News story. Preparing cancer patients for difficult decisions is an oncologist's job. At the University of Pennsylvania Health System, doctors are nudged to talk about a ...