flight

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flight

(flīt)
1. The motion of an object through air.
2. Escape.
[O.E. flyht]

flight

any locomotion through air, either active or passive (gliding). Active flight is brought about by the movement of wings by muscles as in bats, birds and insects; gliding involves a minimum of muscular effort and is found only in some larger birds and certain mammals adapted for flight, such as the flying lemur or flying fox. In birds, muscles are attached directly to the wings and are of two main types: depressor muscles which produce the downstroke and run from the humerus to the STERNUM, and elevator muscles which produce the upstroke and are attached to the upper surface of the HUMERUS by a tendon which runs through the pectoral girdle to the sternum. In insects such as bees, wasps, flies, beetles and bugs, the muscles raising and lowering the wing are attached to the walls of the thorax (indirect flight muscles) and not to the wings and are called asynchronous fibrillar muscles. Direct flight muscles attached to the wings alter the angle and adjust the wings to the resting position. In other insects, for example, the dragonflies, the flight muscles are called synchronous muscles, being attached directly to the wings. Asynchronous wing beats are much slower than synchronous ones.
References in periodicals archive ?
To conserve migratory soaring birds, we build partnerships and strategic alliances with private businesses, NGOs, governments, international organizations and on-going initiatives in these sectors.
Albatross reach average speeds of 36 mph, he said, but dynamic soaring would allow them to fly much faster if the high speeds didn't cause excessive force on their wings.
From mid-June through mid-August, Soaring guests have the option of riding in any of Soaring's First Class cars: the Tall Timber Legend, theTall Timber Legacy and now the Knight Sky.
Second, if their flight mechanics permit, they may significantly reduce the energetic costs associated with powered flight by relying instead on soaring and gliding flight.
Airlines are searching for ways to offset the soaring price of jet fuel.
95), but the DVD edition also includes interactive "Phonic Pics" Activity to challenge young viewers on what they've learned; a Bonus Scene helping to reinforce the vowel sounds; a Music Player (which includes the Pocket Snails Theme and other fun songs from the 25 minute program); "Meet the Snails" (fun facts about each snail including special features of each snail, their favorite foods, favorite colors, and favorite phrases); useful information about Soaring Stars Productions and a Pocket Snails catalog of other titles in this outstanding series such as the "Pocket Snails & Other Snaily Songs" music CD.
According to a late 2005 "World Mirror" newsletter, produced by the Bureau of International Recycling (BIR), soaring demand for copper scrap, notably from China, continues to be the most prominent development.
SOARING WINGS: The future 195-acre Soaring Wings Ranch in Faulkner County got a big boost last month with a $350,000 gift from Beverly Strain-Eads to build a home for boys.
The question highlighted the luncheon's underlying theme of the transition in real estate ownership from family dynasties to REITs, and various other corporate owners, and the consequent increased competition and soaring prices that have resulted.
Courtright has composed a tale of loss and renewal in the New Age novella, Soaring Eagle, Spirit of the Wind.
An overheating stock market was soaring in 1999 with rates at 6.
The Soaring Centre, at Husbands Bosworth near Lutterworth, started life as Coventry Gliding Club, based at Baginton Airport.