Qigong (or ch'i kung) refers to a wide variety of traditional cultivation practices that involve methods of accumulating, circulating, and working with qi, breathing or energy within the body. Qigong is practiced for health maintenance purposes, as a therapeutic intervention, as a medical profession, a spiritual path and/or component of Chinese martial arts.
Palladian architecture is a European style of architecture derived from the designs of the Venetian architect Andrea Palladio (1508–1580). The term "Palladian" normally refers to buildings in a style inspired by Palladio's own work; that which is recognised as Palladian architecture today is an evolution of Palladio's original concepts. Palladio's work was strongly based on the symmetry, perspective and values of the formal classical temple architecture of the Ancient Greeks and Romans. From the 17th century Palladio's interpretation of this classical architecture was adapted as the style known as Palladianism. It continued to develop until the end of the 18th century.
It is defined by the volume of one acre of surface area to a depth of one foot. Since the area of one acre is defined as 66 by 660 feet (a chain by a furlong) then the volume of an acre-foot is exactly 43560 cubic feet. Alternatively, this is approximately 325,851.4 U.S.gallons or 271,328.0 imperialgallons or 1,233.5 kL (or m³).