| | - Ozick, Cynthia
- American novelist, short-story writer, essayist, and intellectual whose works seek to define the challenge of remaining Jewish in contemporary American life. By delving into the oldest religious sources of Judaism, Ozick explored much new territory. [3 Related Articles]
- ozier pattern
- in tableware, molded basket-weave pattern produced in Germany in the 1730s on Meissen porcelain tableware. It was probably one of the numerous inventions of the celebrated modeler Johann Joachim Kandler. There are four basic types of ozier molding: the ordinair-ozier ("ordinary ozier"), a kind of zigzag basket weave; the alt-ozier ...
- Ozma, Project
- attempt undertaken in 1960 to detect radio signals generated by hypothetical intelligent beings living near stars other than the Sun. Some 150 hours of intermittent observation during a four-month period detected no recognizable signals. Frank D. Drake, director of the search, named the project for the princess of Oz, an ...
- ozokerite
- (from Greek ozokeros, "odoriferous wax"), naturally occurring, light yellow to dark brown mineral wax composed principally of solid paraffinic hydrocarbons (compounds chiefly of hydrogen and carbon atoms linked in chains). Ozokerite usually occurs as thin stringers and veins filling rock fractures in areas of mountain building. It is believed to ...
- Ozolua
- African king, the greatest warrior-king of Benin (in modern Nigeria). Ozolua was able to extend the boundaries of Benin from the Niger River in the east virtually to Lagos in the west. Tradition calls him the first ruler in West Africa to have had contact with the Portuguese explorers who ... [1 Related Articles]
- ozone
- (O3), triatomic allotrope of oxygen (a form of oxygen in which the molecule contains three atoms instead of two as in the common form) that accounts for the distinctive odour of the air after a thunderstorm or around electrical equipment. The odour of ozone around electrical machines was reported as ... [21 Related Articles]
- ozone crack
- (from the article "elastomer") Atmospheric ozone reacts readily with elastomers containing C&doublehorzbond;C double bonds, leading to breakage of molecules lying in the surface. As a result, small, deep fissures, termed ozone cracks, are formed if the rubber is stretched slightly (by more than about 10 percent). Cracks one millimetre long appear in unprotected rubber ...
- ozone depletion
- (from the article "Antarctica") A major focus of upper atmospheric research in Antarctica is to understand the processes leading to the annual springtime depletion in stratospheric ozone-the "ozone hole." Ozone depletion has been steadily increasing since it was first detected in 1977. Ozone is destroyed as the result of chemical reactions on the surfaces ...
- ozonide
- any of a class of chemical compounds formed by reactions of ozone (q.v.) with other compounds. Organic ozonides, often made from olefins (q.v.), are unstable, most of them decomposing rapidly into oxygen compounds, such as aldehydes, ketones, and peroxides, or reacting rapidly with oxidizing or reducing agents. A few inorganic ...
- ozonolysis
- (from the article "Harries, Carl Dietrich") Ozonolysis-Harries' technique of rupturing the double bonds of an unsaturated substance with ozone, followed by hydrolysis of the resulting ozonide-produced oxygenated fragments that were capable of forming readily identifiable crystalline derivatives. On the basis of this technique, Harries proposed that rubber consists of two isoprene units combined to form small ...
- ozonosphere
- region in the upper atmosphere between about 10 and 50 km (6 and 30 miles) in altitude, in which there are appreciable concentrations of ozone and in which the temperature distribution is largely determined by the radiative properties of ozone. [13 Related Articles]
- Ozoyong
- (from the article "arts, East Asian") ...Japanese bugaku dances has been noted. Others believe "The Five Displays" derive from the "hundred entertainments" of China. Finally, an important dance play honouring Ozoyong, the son of the Dragon God of the Eastern Sea, dates from this period. Ozoyong showed such generosity toward the spirit of plagues that henceforth ...
- Ozu Yasujiro
- motion-picture director who originated the shomin-geki ("common-people's drama"), a genre dealing with lower-middle-class Japanese family life. Owing to the centrality of domestic relationships in his films, their detailed character portrayals, and their pictorial beauty, Ozu was considered the most typically Japanese of all directors and received more honours in his ... [1 Related Articles]
- Ozzfest
- (from the article "Osbourne, Ozzy") ...Grammy Award for best metal performance for the song I Don't Want to Change the World. Despite announcing his retirement in 1992, he continued recording through the decade. Ozzfest, an annual summer music festival featuring heavy metal acts organized by Osbourne and his wife, began in 1996 ...
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