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Folio 6 contains multiple diagrams of birds flying and their bone structure, and all of the commentary is on flight and how birds fly the way that they do. [9] Leonardo starts off by describing how a bird ascends or descends in different wind conditions. Here is a summary.
The 500 line segments defined above together form a shape in the Cartesian plane that resembles a bird with open wings. Looking at the line segments on the wings of the bird causes an optical illusion and may trick the viewer into thinking that the segments are curved lines. Therefore, the shape can also be considered as an optical artwork.
Scene: sunny landscape with three white herons lifting off from marshy pond dotted with lily pads and lined with tall grass. Birds, like the great white herons, were among Benson's favorite subjects. In this painting he displays a talent for composition and knowledge of birds. Each bird is depicted in a different stage of flight. Sunset at Long ...
In this central layer the pictorial elements are equal: birds and fish are alternately foreground or background, depending on whether the eye concentrates on light or dark elements. The birds take on an increasing three-dimensionality in the upward direction, and the fish, in the downward direction. But as the fish progress upward and the birds ...
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.
The Great Kite, Leonardo's flying machine in codex on flight. The Great Kite (Italian: il Grande Nibbio) was a wooden machine designed by Leonardo da Vinci.Leonardo realized it between the end of the 15th Century and the beginning of the 16th Century.
Malleefowl camouflaged. Malleefowl are shy, wary, solitary birds that usually fly only to escape danger or reach a tree to roost in. Although very active, they are seldom seen as they freeze if disturbed, relying on their intricately patterned plumage to render them invisible, or else fade silently and rapidly into the undergrowth (flying away only if surprised or chased).
Fly away Jack, fly away Jill. Come back Jack, come back Jill. Two little blackbirds flying in the sky. One named Low and one named High. Fly away Low, fly away High. Come back Low, come back High. Two little blackbirds sitting on a pole. One named Fast and one named Slow. Fly away Fast, fly away Slow. Come back Fast, come back Slow.