Their research was applied on the MiG-15 and F-86 Sabre and bombers such as the B-47 Stratojet used swept wings which delay the onset of shock waves and reduce drag.

Their temperature control mechanism relies on action by the bird, which uses its wings to cover the naked skin of the upper legs and flanks to conserve heat, or leaves these areas bare to release heat.

Their prototypes are the oldest winged fossils, go back to the Devonian, and are different in several respects from the wings of other insects.

Their vestigial wings have become flippers, useless for flight in the air.

Their short wings are adapted for swimming with a flying technique under water.

Their wings have few of the scales characteristic of most moths, instead having a thin covering of hairs.

Their wings are large for a flightless bird () and are spread while running, to act like sails.

Their wings may be rounded or pointed, with wing shape closely correlated with foraging habitat and migratory tendencies.

Their most obvious distinction from other orders of insects is that a typical fly possesses a pair of flight wings on the mesothorax and a pair of halteres, derived from the hind wings, on the metathorax.

Their English name derives from the humming sound made by the very fast beating of their wings.

Their short wings give them a distinctive whirring flight.

Their wings are relatively short but strongly muscled, enabling them to be used as flippers underwater.

Their evolution continued to produce adaptations for their specialized parasitic niche, such that they now have no wings and their eyes are covered over.

Their limbs ( wings and legs ) have adapted to have greater flexibility over time.

Their tone was generally much more light-hearted than the novels ' and the characters were updated in a James Bond-like style including Bond-type gadgets like the flying Citroën DS of Fantômas with retractable wings that converts to an airplane.

Their wings are clear or speckled brown.

Their wings are long and fairly broad, suitable for soaring flight, with the outer 4 – 6 primaries emarginated.

Their wings are short and rounded and their short tails are notched ( except the stub-tailed tit ).

Their wings, tail, face and throat are glossy black.

Their wings are short, particularly with regards to overall body size, and used in a highly characteristic whirring flight.

Their wings are very small and they do not fly very often.

Their gliding membrane, or patagium, is as large as is geometrically possible: it runs from the shoulder blades to the fore-paw, from the tip of the rear-most finger to the tip of the toes, and from the hind legs to the tip of the tail ; unlike in other known gliding mammals, even the spaces between the fingers and toes are webbed to increase the total surface area, as in the wings of bats.

Their tails are long and strongly graduated ( the central feathers are the longest ), and marked conspicuously with white, as are their wings.

Their conversations were, almost invariably, accompanied by the same gestures -- arms and pointed forefingers darting toward each other in arclike semicircular motions.

Their heads were in the air sniffing.

Their writings assume more than dramatic or patriotic interest because of their conviction that the struggle in which they were involved was neither selfish nor parochial but, rather, as Washington in his last wartime circular reminded his fellow countrymen, that `` with our fate will the destiny of unborn millions be involved ''.

Their President, Jefferson Davis, interpreted their Constitution to mean that it `` admits of no coerced association '', but this remained so doubtful that `` there were frequent demands that the right to secede be put into the Constitution ''.

Their books found no less willing readers outside than inside the South, even while memories of the war were still sharp.

Their ham butts, cured in oak-log smoke, were also esteemed when roasted or boiled, and served with this original sauce:

Their two boys were `` well adjusted '' and, like their parents, always did the right thing at the right time and damn the consequences.

Their old errors of judgment were equated, in the curious logic of the time, with present treasonous intent.

Their props were two stepladders, a chair and a palm fan.

Their cars weren't small enough, they didn't have the power, they were old-fashioned.

Their meditations were approaching a violent cusp that would shape Martian art for many millennia.

Their skins were exposed to harmful ultraviolet rays that had previously been absorbed by the water.

Their raids throughout the three parts of Gaul were traumatic: Gregory of Tours ( died ca 594 ) mentions their destructive force at the time of Valerian and Gallienus ( 253 – 260 ), when the Alemanni assembled under their " king ", whom he calls Chrocus, who " by the advice, it is said, of his wicked mother, and overran the whole of the Gauls, and destroyed from their foundations all the temples which had been built in ancient times.

Their most famous battle against Rome took place in Argentoratum ( Strasbourg ), in 357, where they were defeated by Julian, later Emperor of Rome, and their king Chnodomarius was taken prisoner to Rome.

Their territories were small and mostly strung along the Rhine ( although a few were in the hinterland ).

Their children were born at various places throughout the Roman Empire and Agrippina acquired a well-deserved reputation for successful childbearing.

Their houses, scattered throughout Lombardy and Venetia, were united into a congregation by St Pius V, under the Rule of St Augustine with a mother-house, residence of the prioress general, at Pavia.

Their aunt tried to teach the girls how to run a household, but their minds were more inclined to literature.

Their return was blocked, and they resolved to march on Athens, where the Long Walls were not yet completed, winning a victory at the Battle of Tanagra.

Their answers to the problem were similar, with the United States developing the M56 Scorpion and the Soviet Union developing the ASU-57, both essentially air-droppable light anti-tank guns.

Their turretless construction bears similarity to later tank destroyers and they were used as an anti-tank component of the reconnaissance units.

Their best finish of this period was under the management of Englishman Jesse Carver, when in 1954 – 55 they finished as runners-up, after Udinese who originally finished second were relegated for corruption.

Their duties at first were simply ministerial.

Their offices were compatible with other offices, i. e. they can hold two benefices or offices at one and the same time, some conferred by the Cardinal Vice-Chancellor, others by the Holy Father.