public, coeducational institution of higher learning in Athens, Ohio, U.S. The university also operates branches in Chillicothe, Ironton, Lancaster, St. Clairsville, and Zanesville. The main campus includes colleges of arts ...
Swedish economist and political leader who is known as the founder of the modern theory of the dynamics of trade. In 1977 he shared the Nobel Prize for Economics with ...
abbreviation Omega, unit of electrical resistance in the metre-kilogram-second system, named in honour of the 19th-century German physicist Georg Simon Ohm. It is equal to the resistance of a circuit ...
in electricity, experimentally discovered relationship that the amount of steady current through a large number of materials is directly proportional to the potential difference, or voltage, across the materials. Thus, ...
German physicist who discovered the law, named after him, which states that the current flow through a conductor is directly proportional to the potential difference (voltage) and inversely proportional to ...
instrument for measuring electrical resistance, which is expressed in ohms. In the simplest ohmmeters, the resistance to be measured may be connected to the instrument in parallel or in series. ...
tributary of the Elbe River, rising in the Fichtel Mountains (Fichtelgebirge) of Germany and flowing generally east and northeastward into the Czech Republic past Cheb, Karlovy Vary, Zatec, and Louny ...
town, Macedonia, on the northeastern shore of Lake Ohrid (Ohridsko Jezero). The chief resort of Macedonia, Ohrid is linked by rail, road, and air to Skopje. Agriculture, fishing, and tourism ...
lake on the Macedonia-Albania border, southeastern Europe. It has an area of 134 square miles (347 square km). At 938 feet (286 m), it is the deepest lake in the ...
in fungi (division Mycota), a single-celled asexual spore (arthrospore) produced by fragmentation of fungal filaments (hyphae) in lower fungi; the asexual stage of Erysiphaceae (powdery mildew fungi); or, in Basidiomycetes, ...
any greasy substance that is liquid at room temperature and insoluble in water. It may be fixed, or nonvolatile, oil; essential oil (q.v.); or mineral oil (see petroleum).
heating device in which fuel oil is mixed with air under controlled conditions. In most burners oil is supplied under pressure to an atomizing nozzle to produce a fine spray, ...
coarse residue obtained after oil is removed from various oilseeds, rich in protein and minerals and valuable as poultry and other animal feed. It may be broken up and sold ...
city, Venango county, northwestern Pennsylvania, U.S., on a bend of the Allegheny River at the mouth of Oil Creek, 70 miles (113 km) north of Pittsburgh. Founded in 1860 on ...
isolation of oil from animal by-products, fleshy fruits such as the olive and palm, and oilseeds such as cottonseed, sesame seed, soybeans, and peanuts. Oil is extracted by three general ...
any of a variety of skin structures that secrete oily or greasy substances of various functions. In birds, the preen gland, or uropygial gland, located on the back at the ...
any of the 40 species of the genus Cymbopogon (family Poaceae), aromatic, oilcontaining grasses cultivated in the tropics of Asia and Africa and introduced into tropical America. Most species are ...
painting in oil colours, a medium consisting of pigments suspended in drying oils. The outstanding facility with which fusion of tones or colour is achieved makes it unique among fluid ...
African tree cultivated as a source of oil in West and Central Africa, where it originated, and in Malaysia and Indonesia, and as an ornamental tree in many subtropical areas; ...
any of the numerous plants, either under cultivation or growing wild, used as sources of oil. Oil plants include trees such as palm, herbaceous plants such as flax, and even ...
area comprising the delta of the Niger River in modern Nigeria, West Africa. The Oil Rivers Protectorate was established by the British in 1885. It was renamed the Niger Coast ...
any sedimentary rock containing various amounts of solid organic material that yields hydrocarbons, along with a variety of solid products, when subjected to pyrolysis-a treatment that consists of heating the ...
leakage of petroleum onto the surface of a large body of water. Oceanic oil spills became a major environmental problem in the 1960s, chiefly as a result of intensified petroleum ...
(Steatornis caripensis), nocturnal bird of South America that lives in caves and feeds on fruit, mainly the nuts of oil palms. The oilbird is an aberrant member of the order ...
wine jug from the classical period of Greek pottery. A graceful vessel with delicately curved handle and trefoil-shaped mouth, the oinochoe was revived during the Renaissance and again during the ...
river, rising in Belgium in the Ardennes mountains southeast of Chimay. It enters France northeast of Hirson, 9 miles (15 km) from its source, and flows generally southwestward, watering the ...
ken (prefecture), northeastern Kyushu, Japan, facing the Suo Sea and Bungo Strait of the Pacific Ocean. Its interior is dominated by a complex mountain system, and most human activity centres ...
city, Ventura county, southern California, U.S. Situated 12 miles (19 km) north of Ventura and about 85 miles (135 km) northwest of Los Angeles, it lies in the Ojai Valley ...
Algonquian-speaking Indians who formerly lived along the northern shore of Lake Huron and both shores of Lake Superior from what is now Minnesota to the Turtle Mountains of North Dakota. ...
semilegendary 15th emperor of Japan, who according to tradition flourished in the 3rd-4th century. Ojin is believed to have consolidated imperial power, spearheaded land reform, and actively promoted cultural exchanges ...
river in western Russia. It is the largest right-bank tributary of the Volga. Rising in the Central Russian Upland, it flows 932 miles (1,500 km), first north in a rather ...
town, Ondo state, southwestern Nigeria, in the Yoruba Hills, on roads from Owo and Ikare. An agricultural market centre (yams, cassava, corn [maize], rice, palm oil and kernels, okra, and ...
(species Okapia johnstoni), cud-chewing hoofed mammal that is placed along with the giraffe (q.v.) in the family Giraffidae (order Artiodactyla). Found in the rainforests of the Congo region, the okapi ...
city, Punjab province, east-central Pakistan. In 1869 it became the headquarters of the tahsil (subdivision) of Okara, supplanting Gugera as headquarters. A flourishing industrial and commercial trade centre, Okara is ...
fourth longest river system in southern Africa, running basically southeastward for 1,000 miles (1,600 km) from central Angola, where it is known as the Kubango, to the Kalahari (desert) in ...
ultranationalistic Japanese political theorist whose writings inspired many of the right-wing extremist groups that dominated Japanese politics during the 1930s. Okawa personally organized and participated in many of the major ...
city, central Nagano ken (prefecture), east-central Honshu, Japan, on the western shore of Lake Suwa. Okaya was a small village until the establishment of its first large ...
city and prefecture (ken), western Honshu, Japan, bordering the Inland Sea, includes numerous offshore islands. Okayama prefecture has a predominantly agricultural economy. Rice, grapes, peaches,
city, south-central Aichi ken (prefecture), central Honshu, Japan. It is located in the Mikawa Plain, on the Yahagi River, about 20 miles (32 km) southeast of Nagoya. ...
lake in southeastern Florida, U.S., and the third largest freshwater lake wholly within the country (after Lake Michigan and Iliamna Lake, Alaska). The lake lies about 40 miles (65 km) ...
swamp and wildlife refuge in southeastern Georgia and northern Florida, U.S. It is a shallow, saucer-shaped depression approximately 25 miles (40 km) wide and 40 miles (65 km) long and ...
town ("parish"), West Devon borough, administrative and historic county of Devon, England. It lies on the northern edge of the wild heathland known as Dartmoor. There was originally a Saxon ...
town, Kogi state, south-central Nigeria. It lies at the intersection of roads from Lokoja, Kabba, Ikare, Ajaokuta, and Anchi. Originally founded on a hill near the present site, it now ...
city, western Gujarat state, west-central India. It is a port at the western tip of the Kathiawar Peninsula, between the Gulf of Kutch and the Arabian Sea. The city contains ...
Soviet experimental-theatrical director and producer. He was one of the first modern directors to introduce productions in the round on an arena stage in an effort to restore intimacy between ...
northwestern arm of the Pacific Ocean, bounded on the west and north by the east coast of Asia from Cape Lazarev to the mouth of the Penzhina River, on the ...
(1881-1917), prerevolutionary Russian secret-police organization that was founded to combat political terrorism and left-wing revolutionary activity. The group's principal mode of operation was through infiltration of labour unions, political parties, ...
archipelago, Shimane ken (prefecture), Japan, lying in the Sea of Japan off the coast of Honshu. The largest island is Dogo; the three smaller isles (Chiburi, Nishino, Nakano) are collectively ...
ken (prefecture), Japan, in the East China Sea. The prefecture is composed of the Ryukyu Islands (q.v.). Okinawa Island is the largest in the Ryukyu Islands archipelago, being about 70 ...
city, Okinawa ken (prefecture), Japan. It is situated in the central part of Okinawa Island and was designated as a new city in 1974. Originally occupying a region of agriculture ...
Japanese economist and government official who was instrumental in developing the plan that doubled Japan's national income in less than 10 years during the 1960s.
constituent state of the United States of America. In its land and its people, Oklahoma is a state of contrast and of the unexpected. The terrain varies from the rolling, ...
city, Canadian, Cleveland, and Oklahoma counties, capital of Oklahoma state, U.S., and seat (1907) of Oklahoma county. It lies along the North Canadian River near the centre of the state, ...
terrorist attack in Oklahoma City, Oklahoma, U.S., on April 19, 1995, in which a massive homemade bomb concealed in a rental truck exploded, heavily damaging the Alfred P. Murrah Federal ...
zoo founded in 1904 in Oklahoma City, Oklahoma, U.S., which maintains one of the finest collections of antelopes and other horned ungulates in North America. The 110-acre (45-hectare) zoo has ...
public, coeducational institution of higher learning in Stillwater, Oklahoma, U.S., a part of Oklahoma's State System of Higher Education. The university also operates branch campuses in Okmulgee and Oklahoma City ...
public, coeducational institution of higher learning in Norman, Oklahoma, U.S. It is part of Oklahoma's State System of Higher Education. The main campus comprises 14 colleges, including those of architecture, ...
city, seat (1907) of Okmulgee county, east-central Oklahoma, U.S. It lies near the Deep Fork of the North Canadian River, south of Tulsa. Its name (meaning "bubbling water") comes from ...
(Hibiscus, or Abelmoschus, esculentus), herbaceous, hairy, annual plant of the mallow family (Malvaceae). It is native to the tropics of the Eastern Hemisphere and is widely cultivated or naturalized in ...
town and port, Rivers state, southern Nigeria. It lies on the north bank of the Bonny River and on Okrika Island, 35 miles (56 km) upstream from the Bight of ...
annual festival in Munich, Germany, held over a two-week period and ending on the first Sunday in October. The festival originated on October 17, 1810, as a horse race, part ...
city, Bashkiriya, western Russia, on the right bank of the Ik River. Founded as a settlement in 1937, when extraction of oil began nearby in the Volga-Ural oil and natural-gas ...
