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Winders: Winders are steps that are narrower on one side than the other. They are used to change the direction of the stairs without landings. A series of winders form a circular or helical stairway. When three steps are used to turn a 90° corner, the middle step is called a kite winder as a kite-shaped quadrilateral.
A stair tread is the horizontal portion of a set of stairs on which a person walks. The tread can be composed of wood, metal, plastic, or other materials. In residential settings, treads can be covered in carpeting. Stair treads can come in non-slip varieties, particularly in commercial or industrial locations. [1]
William A. Eddy, the maker of Eddy-kite fame, lifted cameras to take photographs of cities and landscapes. Today kite aerial photography (KAP) is the hobby of many enthusiasts, is a tool for surveying land and animals, and a mode for artistic expression. Professor Charles Benton illustrates how KAP can grow in one's life.
The Peanuts cartoon character Charlie Brown was often depicted having flown his kite into a tree as a metaphor for life's adversities. "Let's Go Fly a Kite" is a song from the Mary Poppins film and musical. In the Disney animated film Mulan, kites are flown in the parade. In the film Shooter, a kite is used to show the wind direction and wind ...
Crosswind kite power is power derived from airborne wind-energy conversion systems (AWECS, also AWES) or crosswind kite power systems (CWKPS). The kite system is characterized by energy-harvesting parts flying transversely to the direction of the ambient wind, i.e., to crosswind mode; sometimes the entire wing set and tether set are flown in crosswind mode.
The kite is fairly easy to keep flying during a fall, with 'Hindenburgs' being rather exceptional. The rider can be pulled out of the water by the force of the moving kite. The kite power can be regulated by changing the angle of attack of the kite. In light winds the kite may fall into the water and stay there.
The scientific significance of Eddy's improvements to kite-flying was short-lived, due to the advent of Lawrence Hargrave's rectangular box kites. Nevertheless, in the year following Eddy's death, a train of ten Eddy kites reaching an altitude of 23,385 feet (7,128 m) set a height record for several years.
In her pivotal book The Death and Life of Great American Cities, Jane Jacobs includes the stoop as part of her model of the self-regulating urban street. By providing a constant human presence watching the street, institutions such as stoops prevent street crime , without intervention from authority figures.