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The flying geese paradigm (Japanese: 雁行形態論, Hepburn: Gankō keitai-ron) is a view of Japanese scholars regarding technological development in Southeast Asia which sees Japan as a leading power. It was developed in the 1930s, but gained wider popularity in the 1960s, after its author, Kaname Akamatsu, published his ideas in the Journal ...
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.
[3] Swarm behaviour was first simulated on a computer in 1986 with the simulation program boids. [4] This program simulates simple agents (boids) that are allowed to move according to a set of basic rules. The model was originally designed to mimic the flocking behaviour of birds, but it can be applied also to schooling fish and other swarming ...
The Earth completes one rotation for each sidereal day, so for motions of everyday objects the Coriolis force is imperceptible; its effects become noticeable only for motions occurring over large distances and long periods of time, such as large-scale movement of air in the atmosphere or water in the ocean, or where high precision is important ...
The bird is pale grey and is easily distinguished from any of the other grey geese of the genus Anser by the black bars on its head. It is also much paler than the other geese in this genus. In flight, its call is a typical goose honking. A mid-sized goose, it measures 71–76 cm (28–30 in) in total length and weighs 1.87–3.2 kg (4.1–7.1 lb).
Flight Stop appears to be a straightforward representation of sixty geese, but the work is a combination of fibreglass forms and photographs of a single goose, "one of two culled from a flock living on Toronto Island." [4] Photographing the dead bird, Snow adjusted "the neck, wing, and tail positions and the cylindrical parts of the body". [4]
Lishman was one of the pioneers of ultra-light aviationin Canada, and was the first Canadian to foot-launch and land a rigid-winged aircraft. [citation needed]In 1988, he became the first person to lead a flight of geese with an aircraft, and in 1993, the first to conduct an aircraft-led migration of birds.
The sample is made up of over 70,000 specimens from 52 species and spans the period from 1978 to 2016. The study shows that the length of birds' lower leg bones (an indicator of body sizes) shortened by an average of 2.4% and their wings lengthened by 1.3%.