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Lift is a meteorological phenomenon used as an energy source by soaring aircraft and soaring birds. The most common human application of lift is in sport and recreation. The three air sports that use soaring flight are: gliding, hang gliding and paragliding. Energy can be gained by using rising air from four sources: Thermals (where air rises ...
Lesser flamingos flying in formation. When in gliding flight, the upward aerodynamic force is equal to the weight.In gliding flight, no propulsion is used; the energy to counteract the energy loss due to aerodynamic drag is either taken from the potential energy of the bird, resulting in a descending flight, or is replaced by rising air currents ("thermals"), referred to as soaring flight.
Eurasian cranes in a V formation (video) Birds flying in V formation. A V formation is a symmetric V- or chevron-shaped flight formation.In nature, it occurs among geese, swans, ducks, and other migratory birds, improving their energy efficiency, while in human aviation, it is used mostly in military aviation, air shows, and occasionally commercial aviation.
This will generate lift force vector pointing forwards and upwards, and a drag force vector pointing rearwards and upwards. The upwards components of these counteract gravity, keeping the body in the air, while the forward component provides thrust to counteract both the drag from the wing and from the body as a whole.
Red kite (Milvus milvus) in flight, showing remiges and rectrices. Flight feathers (Pennae volatus) [1] are the long, stiff, asymmetrically shaped, but symmetrically paired pennaceous feathers on the wings or tail of a bird; those on the wings are called remiges (/ ˈ r ɛ m ɪ dʒ iː z /), singular remex (/ ˈ r iː m ɛ k s /), while those on the tail are called rectrices (/ ˈ r ɛ k t r ...
Florida Fish and Wildlife Conservation Commission (FWCC) Other executive branch agencies and departments nominally under the authority of the Cabinet include: [ 1 ] [ 2 ] Florida Department of Highway Safety and Motor Vehicles (DHSMV)
It is estimated that approximately 4 percent of energy in the state is generated through renewable resources. [34] Florida's energy production is 6.0% of the nation's total energy output, while total production of pollutants is lower, with figures of 5.6 percent for nitrogen oxide, 5.1 percent for carbon dioxide, and 3.5 percent for sulfur dioxide.
A Gulf fritillary, taken in Payne's Prairie State Park, Florida. Florida is home to diverse wildlife. Over 700 species of land animals are found in the state, including bobcats, armadillos, opossums, and foxes. More than 500 species of birds have been seen in the state, and it is home to an estimated 1,500 nesting pairs of bald eagles. [7]