oryx: The scimitar-horned oryx (O. dammah), 120 cm (47 inches) tall and weighing 200 kg (440 pounds), is mostly white except for the reddish brown neck and chest. The horns are long and straight in the gemsbok and the Arabian oryx. Females’ horns are thinner but as…

gemsbok, (Oryx gazella), species of oryx, or large antelope, that lives in desert regions of Africa and the Arabian Peninsula. Gemsbok are the largest species of oryx and are powerfully built, with sturdy, muscular bodies. They are known in particular for their striking coloration, being gray-brown

beisa, African antelope, a race of the species Oryx gazella. See

oryx: gazella beisa) and fringe-eared oryx (O. gazella callotis) from the Horn of Africa south to Tanzania and the gemsbok in the Karoo region of South Africa. The scimitar-horned oryx, once found throughout northern Africa, was restricted to the southern rim of the Sahara (the Sahel) by the early…

oryx: The Arabian, or white, oryx (O. leucoryx) is the smallest, 102 cm (40 inches) tall and weighing 75 kg (165 pounds), with only faint dark markings to offset its whitish coat. The scimitar-horned oryx (O. dammah), 120 cm (47 inches) tall and weighing 200 kg (440…

oryx: The scimitar-horned oryx (O. dammah), 120 cm (47 inches) tall and weighing 200 kg (440 pounds), is mostly white except for the reddish brown neck and chest. The horns are long and straight in the gemsbok and the Arabian oryx. Females’ horns are thinner but as…

rice, (Oryza sativa), edible starchy cereal grain and the grass plant (family Poaceae) by which it is produced. Roughly one-half of the world population, including virtually all of East and Southeast Asia, is wholly dependent upon rice as a staple food; 95 percent of the world’s rice crop is eaten

Poaceae: Distribution and abundance: …sometimes segregated as the subfamily Oryzoideae owing to the distinctive spikelets and aquatic or wetland herbaceous habit of these tropical and warm-temperate plants. The best-known members of this subgroup of only about 70 species are rice, Oryza sativa, a native of Asia, and wild rice, Zizania aquatica (see photograph), of…

rice rat, (genus Oryzomys), any of 36 nocturnal species of small rodents found from the United States southward through tropical and portions of subtropical South America. Rice rats have soft fur, with tawny to grayish brown upperparts and paler underparts. Their tails are sparsely haired and vary

rice rat: Among the smallest is Oryzomys alfaroi, from southern Mexico to western Ecuador, with a body up to 12 cm (4.7 inches) long and a slightly shorter tail; among the largest is O. angouya, found in eastern Brazil, Paraguay, and southern Argentina, with a body length up to 20 cm…

rice rat: …tail; among the largest is O. angouya, found in eastern Brazil, Paraguay, and southern Argentina, with a body length up to 20 cm and a much longer tail.

rice rat: … of the Amazon Basin, and O. bolivaris is found only in very wet tropical forests of the Trans-Andean region. Much has been learned about the ecologies of some species with extensive geographic ranges and high population densities, such as O. megacephalus. Others, such as Thomas’s rice rat (O. dimidiatus) from…

rice rat: Others, such as Thomas’s rice rat (O. dimidiatus) from southeastern Nicaragua, are rare and are found only in one or two places, and most aspects of their natural histories are unknown.

rice rat: …particular biogeographic regions; for example, O. megacephalus and O. yunganus are restricted to lowland tropical rainforests of the Amazon Basin, and O. bolivaris is found only in very wet tropical forests of the Trans-Andean region. Much has been learned about the ecologies of some species with extensive geographic ranges and…

hantavirus: …by the marsh rice rat, Oryzomys palustris); Chile and Argentina, caused by the Andes virus (carried by Oligoryzomys longicaudatus, a species of pygmy rice rat); and Central America, caused by the Choclo virus (carried by Oligoryzomys fulvescens, another pygmy rice rat).

rice rat: megacephalus and O. yunganus are restricted to lowland tropical rainforests of the Amazon Basin, and O. bolivaris is found only in very wet tropical forests of the Trans-Andean region. Much has been learned about the ecologies of some species with extensive geographic ranges and high population densities,…

tenrec: The three species of rice tenrecs (genus Oryzorictes) are burrowers that will inhabit rice fields. They are similar to American short-tailed shrews and have dark velvety fur, small eyes and ears, and long front claws. The amphibious tenrec (Limnogale mergulus) is the only species in its genus. In addition…

the Cars: …Ric Ocasek, vocalist and bassist Benjamin Orr, guitarist Elliot Easton, keyboardist Greg Hawkes, and drummer David Robinson. The band’s steady stream of albums from 1978 to 1987 cemented them as one of the major pillars of the new wave rock movement from the late 1970s through the late 1980s.

Eliza Orzeszkowa was a Polish novelist and a leading writer of the Positivist period (the Polish Positivists took their name from Auguste Comte’s philosophy but were themselves mainly utilitarians). Questions of education, independence, and marriage in Orzeszkowa’s works were eventually

operating system (OS), program that manages a computer’s resources, especially the allocation of those resources among other programs. Typical resources include the central processing unit (CPU), computer memory, file storage, input/output (I/O) devices, and network connections. Management tasks

institutionalism: Mid-20th-century American institutionalism: …sociology with the emergence of organizational science (OS), which was a response to the rapid growth in the size of firms starting in the 1860s. The earliest and most influential figure was Chester Irving Barnard, who in the 1930s argued that an organization is a complex system of cooperation and…

osmium (Os), chemical element, one of the platinum metals of Groups 8–10 (VIIIb), Periods 5 and 6, of the periodic table and the densest naturally occurring element. A gray-white metal, osmium is very hard, brittle, and difficult to work, even at high temperatures. Of the platinum metals, it has

Gymnophiona: Form and function: …example, a single bone, the os basale, forms both the floor of the braincase and the posterior part of the skull. Teeth are found on all jaw bones, and a palatal series of teeth appears in addition, medial to the maxillary series. A U-shaped facet, which articulates with the quadrate…

José Valentim Fialho de Almeida: …de Almeida’s serial story collection Os gatos (1889–93; “The Cats”) is a satiric, caricatural depiction of Lisbon life and customs of the period. In O país das uvas (1893; “Vineyard Country”) and other short-story collections, he offers lively, earthy descriptions of rural Portuguese life, which he contrasts favourably with the…

Concha Alós: Her Os habla Electra (1975; “Electra Speaking”), which offers a Freudian interpretation of the Electra myth, diverges radically in narrative style from her earlier work, weaving in and out of hallucination and reality. She continued her experimentation in Argeo ha muerto, supongo (1982; “Argeo’s Dead, I…

José Maria de Eça de Queirós: …Queirós’s masterpiece, Os Maias (1888; The Maias), a detailed depiction of upper-middle-class and aristocratic Portuguese society. Its theme is the degeneration of a traditional family whose last offspring are led into a series of tangled sexual relationships by the actions of their parents, who are symbols of the decadence of…

baculum, the penis bone of certain mammals. The baculum is one of several heterotropic skeletal elements—i.e., bones dissociated from the rest of the body skeleton. It is found in all insectivores (e.g., shrews, hedgehogs), bats, rodents, and carnivores and in all primates except humans. Such wide

baculum, the penis bone of certain mammals. The baculum is one of several heterotropic skeletal elements—i.e., bones dissociated from the rest of the body skeleton. It is found in all insectivores (e.g., shrews, hedgehogs), bats, rodents, and carnivores and in all primates except humans. Such wide

Abílio Manuel Guerra Junqueiro: …rural and village life in Os simples (1892; “The Simple Ones”), in which his lyrical quality, often overdeclamatory, is at its purest.

Antero Tarquínio de Quental: …and the 109 sonnets of Os Sonetos Completos (1886) are a history of his spiritual progress, giving expression both to his personal anxieties and to the larger ideological issues in Portugal as that country was exposed to late 19th-century European thought. Quental’s Sonnets and Poems (1922), translated by S. Griswold…

Osa, city, Perm kray (territory), Russia, on the left bank of the Kama River near its confluence with the Tulva River. The city is about 60 miles (100 km) southwest of the city of Perm. Originally a village of Khanty (Ostyak), a Ugric-speaking people, it became the Russian town of Nikolskaya

sleep apnea: In obstructive sleep apnea (OSA), airway collapse is eventually terminated by a brief awakening, at which point the airway reopens and the person resumes breathing. In severe cases this may occur once every minute during sleep and in turn may lead to profound sleep disruption. In…

Osa Peninsula, peninsula, southern Costa Rica, bounded on the northwest by Coronado Bay, on the west by the Pacific Ocean, and on the east by the Gulf of Dulce. Costa Rica’s second largest peninsula, Osa measures about 20 miles (30 km) northeast-southwest and about 35 miles (55 km)

Pacorus: …with an army commanded by Osaces, an older warrior. Osaces, however, was killed in battle, and early the next year Orodes, learning that one of his satraps was conspiring to make Pacorus king, recalled his son. In 45, Pacorus intervened in Roman politics by leading a Parthian force to help…

Osage, North American Indian tribe of the Dhegiha branch of the Siouan linguistic stock. The name Osage is an English rendering of the French phonetic version of the name the French understood to be that of the entire tribe. It was thereafter applied to all members of the tribe. The name Wa-zha-zhe

Osage murders, series of murders of Osage tribal members in Oklahoma principally in the 1920s. Many of the killings were part of a conspiracy to obtain the oil wealth of Osage members. The murders were the first major criminal investigation conducted by the U.S. government agency that became the

Osage orange, (Maclura pomifera), thorny tree or shrub native to the south-central United States, the only species of its genus in the family Moraceae. The Osage orange is often trained as a hedge; when planted in rows along a boundary, it forms an effective spiny barrier. The tree also serves as a

Osage River, river rising as the Marais des Cygnes (French: “Swan Marshes”) in the Flint Hills near Eskridge, Kansas, U.S. It becomes the Osage (named for the Osage Indians) after its junction with the Little Osage near Rich Hill, Missouri, and then flows east through the Ozark highlands to enter

Ōsaka, fu (urban prefecture), Honshu, Japan. It includes the industrial city of Ōsaka, the prefectural capital, and numerous industrial and residential suburbs. The urban prefecture is bordered by Kyōto urban prefecture (north); by the ken (prefectures) of Hyōgo (northwest), Nara (east), and

Ōsaka, city and capital of Ōsaka fu (urban prefecture), south-central Honshu, Japan. The city, together with its neighbouring city Kōbe and nearby Kyōto, are the centres of the Keihanshin Industrial Zone, the second largest urban and industrial agglomeration in Japan. A brief treatment of Ōsaka

Asia-Pacific Economic Cooperation: …following year it adopted the Osaka Action Agenda, a plan to implement APEC’s goals of liberalizing trade and investment, facilitating business activities, and promoting economic and technical cooperation. Despite these commitments, APEC’s effectiveness has been limited by its requirement that all its decisions be made by consensus. Although APEC seeks…

Asahi shimbun, nationwide Japanese daily newspaper, one of the “big three” in influence and circulation, printed in Tokyo, Ōsaka, and several other regional centres and also as an English-language-edition daily in Tokyo. Asahi was founded in Ōsaka in 1879 and has been in the hands of the Murayama

Ōsaka-Kōbe metropolitan area: The city site: The southwestern boundary of Ōsaka Bay is formed by Awaji Island. On the northwestern shore of the bay is Kōbe, above which rises the granite peak of Mount Rokkō (3,058 feet). The region is geologically unstable. Although earthquakes occur only infrequently, they can be highly destructive; notable severe quakes…

Ōsaka-Kōbe metropolitan area: The city site: …east of the central city, Ōsaka Castle, originally built by Toyotomi Hideyoshi, stands on a northern extension of the upland (about 65 feet [20 metres] above sea level) that rises in the southern part of Ōsaka urban prefecture to more than 3,000 feet. The metropolitan area spreads over the deltas…

Mainichi shimbun, national daily newspaper, one of Japan’s “big three” dailies, which publishes morning and evening editions in Tokyo, Ōsaka, and three other regional centres. The newspaper had as its origin the Nihon Rikken Seitō shimbun (“Japan Constitutional Government Party Newspaper”), which

Shishaku Shibusawa Eiichi: …later he began the famous Ōsaka Spinning Company. Larger and more efficient than any other of its kind, this plant established Shibusawa’s dominance over Japanese industrial life. Shibusawa, in fact, was involved in almost every enterprise associated with the country’s industrial development in this period, founding railways, steamship companies, fisheries,…

construction: Postwar developments in long-span construction: The Ōsaka World’s Fair of 1970 included many air-supported structures, the largest of which was the U.S. Pavilion designed by the engineers Geiger Berger Associates; it had an oval plan 138 × 79 metres (460 × 262 feet), and the inflated domed roof of vinyl-coated fabric…

Naomi Osaka is a tennis player and activist who, with her victory at the 2018 U.S. Open, became the first player from Japan to win a Grand Slam singles title. The following year she became the first Asian player to ascend to the top of the Women’s Tennis Association (WTA) world rankings. In

Ōsaka-Kōbe metropolitan area, second largest urban and industrial agglomeration in Japan, located on Ōsaka Bay in west-central Honshu at the eastern end of the Inland Sea. The cities of Ōsaka and Kōbe are at the centre of what is called by geographers the Hanshin Industrial Zone; as a result of the

Osasco, city, southeastern São Paulo estado (state), Brazil. Located at 2,360 feet (720 metres) above sea level, Osasco lies along the Tietê River. It is just northwest of São Paulo city, the state capital, and is part of its metropolitan area. Osasco has experienced extremely rapid growth owing to

Osawatomie, city, Miami county, eastern Kansas, U.S. It lies along the Marais des Cygnes River at the mouth of Pottawatomie Creek; its name combines elements of the words Osage and Pottawatomie. Settled in 1854 with support of the New England Emigrant Aid Company, Osawatomie was the headquarters

pummelo, (Citrus maxima), citrus tree of the family Rutaceae, grown for its large sweet fruits. It is native to mainland Southeast Asia and the Malaysian portion of the island of Borneo. It is sometimes called shaddock, a name that is said to have derived from that of a captain who introduced the

Osborn’s dwarf crocodile, (Osteolaemus osborni), small crocodile species that inhabits the tropical forests and wetlands of Africa’s Congo River basin. The geographic range of Osborn’s dwarf crocodile extends from southeastern Cameroon and southwestern Central African Republic southward to the

Henry Fairfield Osborn was an American paleontologist, eugenicist, and museum administrator who greatly influenced the art of museum display and the education of paleontologists in the United States and Great Britain. Born to a prominent and wealthy family, Osborn was the eldest son of railroad

Alaskan mountains: Physiography of the central ranges: …4,714 feet (1,437 metres), is Mount Osborn in the Kigluaik Mountains in the southwestern part of the peninsula. Most of that area is characterized by permafrost. The exposed bedrock is early Paleozoic metamorphics, Cretaceous sediments, and intrusions of Mesozoic igneous rock.

East of Eden: Production notes and credits:

Salem witch trials: Three witches: …Good, an irascible beggar, and Sarah Osborn (also spelled Osborne), an elderly bed-ridden woman who was scorned for her romantic involvement with an indentured servant. On March 1 two magistrates from Salem Town, John Hathorne and Jonathan Corwin, went to the village to conduct a public inquiry. Both Good and…

Lay-Osborn flotilla: …procured the gunboats and hired Captain Sherard Osborn and a British crew to run them. After the flotilla arrived in Chinese waters in 1863, Lay and Osborn refused to comply with the wishes of the Chinese that they surrender command of the ships and continue to serve only as technical…

Alpine, city, seat (1887) of Brewster county, extreme western Texas, U.S., in a high valley with an altitude of 4,481 feet (1,366 metres), flanked by the Davis Mountains (north) and the Glass Mountains (east), 190 miles (306 km) southeast of El Paso. Founded in 1882 with the arrival of the railroad

Osborne House, former residence of the British royal family on the Isle of Wight, England. It lies southeast of Cowes and is one of the most popular tourist attractions on the Isle of Wight. The estate, consisting of 800 acres (324 hectares), was bought by Queen Victoria in 1845 and was

computer: Handheld digital devices: The first of these, the Osborne 1, designed by Lee Felsenstein, an electronics engineer active in the Homebrew Computer Club in San Francisco, was sold in 1981. Soon most PC manufacturers had portable models. At first these portables looked like sewing machines and weighed in excess of 9 kg (20…

obscenity: Developments in the 20th century: ” In Osborne v. Ohio (1990), the court upheld a law that criminalized the private possession of a photograph of a nude adolescent.

Montserrat: History of Montserrat: …headed by an independent member, Bertrand Osborne, as chief minister. Osborne resigned in 1997 amid criticism of his handling of the volcano crisis, and he was replaced by David Brandt. The British government was also widely criticized for its handling of the crisis, although it helped evacuate and relocate the…

Dorothy Osborne, Lady Temple was an English gentlewoman best known for the letters she wrote to her future husband, William Temple, before their marriage. The letters are simply written in an easy, conversational style and present an interesting picture of the life of a young English gentlewoman in

George Osborne is a British Conservative Party politician who served as chancellor of the Exchequer in the cabinet of Prime Minister David Cameron (2010–16). Osborne was the son of Sir Peter Osborne, 17th baronet of Ballintaylor, a cofounder of the upmarket fabric and wallpaper designer Osborne &

George Osborne is a British Conservative Party politician who served as chancellor of the Exchequer in the cabinet of Prime Minister David Cameron (2010–16). Osborne was the son of Sir Peter Osborne, 17th baronet of Ballintaylor, a cofounder of the upmarket fabric and wallpaper designer Osborne &

John Osborne was a British playwright and film producer whose Look Back in Anger (performed 1956) ushered in a new movement in British drama and made him known as the first of the Angry Young Men. The son of a commercial artist and a barmaid, Osborne used insurance money from his father’s death in

John Osborne was a British playwright and film producer whose Look Back in Anger (performed 1956) ushered in a new movement in British drama and made him known as the first of the Angry Young Men. The son of a commercial artist and a barmaid, Osborne used insurance money from his father’s death in

Salem witch trials: Three witches: …Good, an irascible beggar, and Sarah Osborn (also spelled Osborne), an elderly bed-ridden woman who was scorned for her romantic involvement with an indentured servant. On March 1 two magistrates from Salem Town, John Hathorne and Jonathan Corwin, went to the village to conduct a public inquiry. Both Good and…

Thomas Osborne, 1st duke of Leeds was an English statesman who, while chief minister to King Charles II, organized the Tories in Parliament. In addition, he played a key role in bringing William and Mary to the English throne in 1689. The son of a Royalist Yorkshire landowner, Osborne did not

Lafayette Benedict Mendel: …worked with the American biochemist Thomas Osborne to determine why rats could not survive on diets of pure carbohydrates, fats, and proteins alone. Simultaneously with the American biochemists Elmer McCollum and Marguerite Davis, he discovered a fat-soluble factor in cod liver oil and butter (1913; now known to be vitamin…

Thomas Mott Osborne was an American penologist whose inauguration of self-help programs for prisoners through Mutual Welfare Leagues functioned as a model for the humanitarian programs of later penologists. Osborne served two terms on the Auburn Board of Education and in 1903 was elected mayor of

civet: … (Civettictis civetta), and the rare Congo water civet (Genetta piscivora) are semiaquatic. Civets feed on small animals and on vegetable matter. Their litters usually consist of two or three young.

Ozzy Osbourne is a British musician who gained a loyal following as the vocalist for the 1970s heavy metal group Black Sabbath before embarking on a successful solo career in the 1980s. Raised in a working-class family, Osbourne dropped out of school at age 15 and held several low-paying jobs. He

Ozzy Osbourne is a British musician who gained a loyal following as the vocalist for the 1970s heavy metal group Black Sabbath before embarking on a successful solo career in the 1980s. Raised in a working-class family, Osbourne dropped out of school at age 15 and held several low-paying jobs. He

Ozzy Osbourne: Going solo: He then met and married Sharon Arden, who encouraged him to start a career as a solo artist. His first effort, achieved with the primary help of guitarist Randy Rhoads, was Blizzard of Ozz (1980). A multiplatinum success, thanks in part to the standout single “Crazy Train,” it was followed…

Television in the United States: Reality TV: …celebrities in intimate situations were The Osbournes (MTV, 2002–05), focusing on heavy metal rocker Ozzy Osbourne and his family; The Anna Nicole Show (E!, 2002–04), whose eponymous star was a former Playboy model; The Newlyweds: Nick and Jessica (MTV, 2003–05), chronicling the ultimately failed marriage of singers Nick Lachey (formerly…

Huesca, city, capital of Huesca provincia (province), in the comunidad autónoma (autonomous community) of Aragon, northeastern Spain. It lies northeast of Zaragoza, in the region known as Hoya de Huesca, which is dominated by the Guara Mountains to the north and is watered by the Flumen River. The

Pompeii: History: …towns were first settled by Oscan-speaking descendants of the Neolithic inhabitants of Campania. Archaeological evidence indicates that the Oscan village of Pompeii, strategically located near the mouth of the Sarnus River, soon came under the influence of the cultured Greeks who had settled across the bay in the 8th century…

Oscan language, one of the Italic languages closely related to Umbrian and Volscian and more distantly related to Latin and Faliscan. Spoken in southern and central Italy, it was probably the native tongue of the Samnite people of the central mountainous region of southern Italy. Oscan was

submarine: Attack submarines: …the gigantic 13,000-ton, 150-metre (500-foot) Oscar submarines, which entered service in 1980.

Sylvester Stallone: (1995), Judge Dredd (1995), and Get Carter (2000). Although most of those films had only limited success at the box office in the United States, Stallone’s ability to attract audiences overseas proved enormous. In 2010 he cowrote, directed, and starred in The Expendables, a thriller about a team of mercenaries…

cichlid: …fish spotted with blue-green; the oscar (Astronotus ocellatus), an attractive fish with an orange-ringed black spot on its tail base; and the discus (Symphysodon discus), a very deep-bodied fish streaked with blue. Another popular aquarium fish of this group is the angelfish, or scalare (Pterophyllum). A notable cichlid is Tilapia…

Academy Award, any of a number of awards presented annually by the Academy of Motion Picture Arts and Sciences, located in Beverly Hills, California, U.S., to recognize achievement in the film industry. The awards were first presented in 1929, and winners receive a gold-plated statuette commonly

Peter Carey: …filmed 1985), Illywhacker (1985), and Oscar and Lucinda (1988; filmed 1997) are more realistic, though Carey used black humour throughout all three. The later novels are based on the history of Australia, especially its founding and early days.

Gillian Armstrong: Oscar and Lucinda (1997), set in mid-19th-century Australia and based on a novel by Peter Carey, was also well received. Her later movies included the World War II drama Charlotte Gray (2001), which starred Cate Blanchett, and Death Defying Acts (2007), a fable about Harry…

Oscar II was the king of Sweden from 1872 to 1907 and of Norway from 1872 to 1905. An outstanding orator and a lover of music and literature, Oscar published several books of verse and wrote on historical subjects. In home politics he proved a conservative; in foreign policy he favoured

Gustav VI Adolf was the king of the Swedes from 1950 to 1973, the last Swedish monarch to hold real political power after constitutional reforms initiated in 1971. The son of the future king Gustav V and Victoria of Baden, Gustav entered the army in 1902 and by 1932 had risen to the rank of

Gustav V was the king of Sweden from 1907 to 1950. The eldest son of King Oscar II and Sophie of Nassau, he was created duke of Värmland and from 1872 acted as crown prince. In 1881 he married Victoria, daughter of the grand duke Frederick I of Baden. Succeeding on his father’s death (Dec. 8,

Oscar I was the king of Sweden and Norway from 1844 to 1859, son of Charles XIV John, formerly the French marshal Jean-Baptiste Bernadotte. Oscar’s early liberal outlook and progressive ideas on such issues as fiscal policy, freedom of the press, and penal reform fortuitously coincided with a

Oscar II was the king of Sweden from 1872 to 1907 and of Norway from 1872 to 1905. An outstanding orator and a lover of music and literature, Oscar published several books of verse and wrote on historical subjects. In home politics he proved a conservative; in foreign policy he favoured

Organization for Security and Co-operation in Europe, organization of representatives of virtually all the states of Europe, as well as the United States and Canada, committed to formalizing decisions on important questions affecting the security and stability of the European continent as a whole.

Winter Park, city, Orange county, central Florida, U.S., just north of Orlando. The city was founded as Lakeview in 1858, and the name was changed to Osceola in 1870. In 1881 Loring A. Chase and Oliver E. Chapman purchased 600 acres (240 hectares) of land on the site and laid out a town that they

Osceola, city, southern seat (1832) of Mississippi county (the northern seat is Blytheville), northeastern Arkansas, U.S., on the Mississippi River, about 50 miles (80 km) north of Memphis, Tennessee. It was founded in 1830 by William B. Edrington, who bartered the site (probably Plum Point) from

Osceola was an American Indian leader during the Second Seminole War, which began in 1835 when the U.S. government attempted to force the Seminole off their traditional lands in Florida and into the Indian territory west of the Mississippi River. Osceola moved from Georgia to Florida, where,

Erigone: …festival various small images (Latin oscilla) were swung from trees, and offerings of fruit were made.

standing wave: …moving waves, interference produces an oscillating wave fixed in space.

electronics: Oscillation: If feedback is positive, the feedback signal reinforces the original one, and an amplifier can be made to oscillate, or generate an AC signal. Such signals are needed for many purposes and are created in numerous kinds of oscillator circuits. In a tunable oscillator,…

plasma oscillation, in physics, the organized motion of electrons or ions in a plasma. Each particle in a plasma assumes a position such that the total force resulting from all the particles is zero, thus producing a uniform state with a net charge of zero. If an electron is moved from its

oscillator, any of various electronic devices that produce alternating electric current, commonly employing tuned circuits and amplifying components such as thermionic vacuum tubes. Oscillators used to generate high-frequency currents for carrier waves in radio broadcasting often are stabilized by