Flag - Flapping


When blown by the wind, flags are subject to wave-like motions that grow in amplitude along the length of the flag. This is sometimes ascribed to the flag pole giving vortex shedding, however flags that are held by lanyards also can be seen to flap.

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Other articles related to "flapping":

Basic Mechanics of Bird Flight - Flapping
... Flapping involves two stages the down-stroke, which provides the majority of the thrust, and the up-stroke, which can also (depending on the bird's wings ...
Alveolar Flap - Occurrence
... See English phonology and flapping Australian Intervocalic allophone of /t/, and also /d/ among few speakers ... See Australian English phonology and flapping New Zealand Cockney Intervocalic allophone of /t/ ... See flapping Dublin Intervocalic allophone of /t/ and /d/, present in many dialects ...
Myth Busters (2008 Season) - Episode 102 – "Shark Week Special 2" - Fish Flap
... Myth statement Status Notes The sound of a flapping fish will attract more sharks than if the fish was stationary ... cut-outs shielded by screens, so that only the flapping would be available to the sharks ... increase in shark activity towards the flapping fish, but not enough to be especially appreciable until the screen was removed and the sharks could see ...
Overactive - Classification - Tremor
... A “flapping tremor,” or asterixis, is characterized by irregular flapping-hand movement, which appears most often with outstretched arms and wrist extension ... Individuals with this condition resemble birds flapping their wings ...
Pteranodon - Biology and Ecology - Flight
... the vertical gradient of wind speed near the ocean surface to travel long distances without flapping, and without the aid of thermals (which do not occur over the open ocean the same ... it probably required an occasional active, rapid burst of flapping, and studies of Pteranodon wing loading (the strength of the wings vs ... the weight of the body) indicate that they were capable of substantial flapping flight, contrary to some earlier suggestions that they were so big they could only glide ...

Famous quotes containing the word flapping:

    I was awakened at midnight by some heavy, low-flying bird, probably a loon, flapping by close over my head, along the shore. So, turning the other side of my half-clad body to the fire, I sought slumber again.
    Henry David Thoreau (1817–1862)

    Amidst the dust, and the falling things, and the flapping scenery, Cincinnatus made his way in that direction where, to judge by the voices, stood beings akin to him.
    Vladimir Nabokov (1899–1977)