- orientation (space perception)
migration: Navigation and orientation: Migrants often return to breed in the exact locality where they were hatched or born. This journey homeward, particularly that of birds, may cover thousands of miles.
- orientation (mathematics)
mechanics: Configuration space: … and 3 to give the orientation of the body. Thus, in this case, the constraint has reduced the number of independent coordinates from 3N to 6. Rather than restricting the behaviour of the system to a portion of the original 3N-dimensional configuration space, it is possible to describe the system…
- orientation column system (anatomy)
photoreception: Central processing of visual information: Cells with the same preferred orientation are grouped in columns that extend through the depth of the cortex. The columns are grouped around a central point, similar to the spokes of a wheel, and preferred orientation changes systematically around each hub. Within a column the responses of the cells vary…
- orientation effect (chemistry)
chromatography: Retention: …in other molecules, (3) an orientation effect, caused by the mutual attraction of polar molecules resulting from alignment of dipoles (positive charges separated from negative charges), (4) hydrogen bonding between dipolar molecules bearing electron-pair-accepting hydrogen atoms, and (5) acid-base interactions in the Lewis acid-base sense—i.e., the affinity of
- orientation polarization (physics)
liquid: Speed of sound and electric properties: The third effect, orientation polarization, occurs with molecules that have permanent dipole moments. These molecules are partially aligned by the field and contribute heavily to the polarization. Thus, the dielectric constant of a nonpolar liquid, such as a hydrocarbon, is about 2, that of a weakly polar liquid,…
- Oriente (region, Ecuador)
Oriente, region of eastern Ecuador, comprising the eastern slopes of the Ecuadorian Andes and the lowland areas of rainforest in the Amazon basin. It is bounded on the north by San Miguel and Putumayo rivers and on the east and south by Peru. Oriente has an area of about 50,000 square miles
- Oriente, Plaza de (square, Madrid, Spain)
Madrid: The city layout: One of the squares, the Plaza de Oriente, facing the palace of the same name, was cleared of 56 houses, a library, a church, and several convents.
- Oriente, University of (university, Santiago de Cuba, Cuba)
Santiago de Cuba: The University of Oriente (founded 1947), a medical school, a sports stadium, a cathedral, and several museums are located in the city, which is a cultural and tourism centre. The city has a multiethnic population and is home to the largest number of descendants of Africans…
- orienteering (sport)
orienteering, outdoor competitive sport that is similar to cross-country running, but with emphasis on map-reading and direction-finding skills. Through woods and over hills or rough plains, contestants plot courses between isolated control points that must usually be visited in sequence.
- orienting response (psychology)
attention: 19th-century roots: …usually referred to as the orienting response. In dogs and other animals this includes such signs of attention as pricked-up ears, head turned toward the stimulus, increased muscular tension, and physiological changes detectable with instruments. Further influence came from work on reflexology by one of Pavlov’s competitors, Russian Vladimir M.…
- orifice scrubber (technology)
air pollution control: Scrubbers: In orifice scrubbers and wet-impingement scrubbers, the air-and-droplet mixture collides with a solid surface. Collision with a surface atomizes the droplets, reducing droplet size and thereby increasing total surface contact area. These devices have the advantage of lower water-recirculation rates, and they offer removal efficiencies of…
- Oriflamme (French banner)
Suger: …rode into battle carrying the Oriflamme, the banner of Saint-Denis, which normally rested in the church along with the relics of the saint. As a result of his (and Suger’s) appeal to the nobility’s veneration for the saint, he was followed by a larger army of nobles than had ever…
- origami (art)
origami, art of folding objects out of paper to create both two-dimensional and three-dimensional subjects. The word origami (from Japanese oru [“to fold”] and kami [“paper”]) has become the generic description of this art form, although some European historians feel it places undue weight on the
- Origanum (plant genus)
Lamiaceae: Major genera and species: The genus Origanum, native in Europe, includes 15 to 20 species, chief among them being marjoram (O. majorana) and oregano (O. vulgare).
- Origanum dictamnus (plant)
dittany: … (common dittany; Cunila origanoides), and dittany of Crete (Cretan dittany, or hop marjoram; Origanum dictamnus). European dittany is in the rue family (Rutaceae), while the other two species are in the mint family (Lamiaceae). All three species are bushy perennials cultivated for their aromatic foliage.
- Origanum majorana (herb)
marjoram, (Origanum majorana), perennial plant of the mint family (Lamiaceae), grown as a culinary herb. Its fresh or dried leaves and flowering tops are used to season many foods, imparting a warm, aromatic, slightly sharp, and bitterish flavour. Marjoram is particularly appreciated for the taste
- Origanum onites (herb)
marjoram: Pot marjoram (O. onites) is also cultivated for its aromatic leaves and is used to flavour food. Oregano, or wild marjoram (O. vulgare), is a popular culinary herb native to Europe and Asia.
- Origanum vulgare (herb)
oregano, (Origanum vulgare), aromatic perennial herb of the mint family (Lamiaceae) known for its flavourful dried leaves and flowering tops. Oregano is native to the hills of the Mediterranean countries and western Asia and has naturalized in parts of Mexico and the United States. The herb has
- Origen (album by Juanes)
Juanes: His 10th studio album, Origen (2021), was a tribute to his musical roots; a companion documentary was also released that year.
- Origen (Christian theologian)
Origen was the most important theologian and biblical scholar of the early Greek church. His greatest work is the Hexapla, which is a synopsis of six versions of the Old Testament. Origen was born of pagan parents, according to the Neoplatonist philosopher Porphyry, but of Christian parents,
- Origen de las Especies, y Otros Poemas, El (poetry by Cardenal)
Ernesto Cardenal: …Especies, y Otros Poemas (2011; Origin of the Species, and Other Poems). He won numerous awards and honours.
- origin (musculature)
animal: Types of skeletons and their distribution: …a muscle is called the origin, the other the insertion. One muscle contracts and moves the skeletal element on which it is inserted, and an antagonistic muscle contracts and moves the skeletal element in the opposite direction. The biceps and triceps of the upper arm in humans are such a…
- Origin (novel by Brown)
Dan Brown: …fifth installment in the series, Origin, was released the following year.
- Origin and Development of the Moral Ideas, The (work by Westermarck)
Edward Westermarck: …however, is considered to be The Origin and Development of the Moral Ideas, 2 vol. (1906–08), in which he proposed a theory of ethical relativity according to which moral judgments are ultimately based on emotions of approval and disapproval rather than on intellect. Viewing ethics as a sociological and psychological…
- Origin and Goal of History, The (work by Jaspers)
Karl Jaspers: Postwar development of thought: …und Ziel der Geschichte (1949; The Origin and Goal of History, 1953). At the centre of history is the axial period (from 800 to 200 bc), during which time all the fundamental creations that underlie man’s current civilization came into being. Following from the insights that came to him in…
- Origin of a Land Flora, The (work by Bower)
Frederick Orpen Bower: …work, summarized in his classic The Origin of a Land Flora (1908), have done much to coordinate paleobotany and plant morphology in a widespread study of plant evolution. Bower also wrote The Ferns, 3 vol. (1923–28), Size and Form in Plants (1930), and Primitive Land Plants (1935).
- Origin of Chemical Elements, The (paper by Gamow and Alpher)
George Gamow: …in a paper called “The Origin of Chemical Elements” (1948). This paper, attempting to explain the distribution of chemical elements throughout the universe, posits a primeval thermonuclear explosion, the big bang that began the universe. According to the theory, after the big bang, atomic nuclei were built up by the…
- Origin of Civilization and the Primitive Condition of Man, The (work by Lubbock)
study of religion: Theories concerning the origins of religion: His book, The Origin of Civilization and the Primitive Condition of Man, outlined an evolutionary scheme, beginning with atheism (the absence of religious ideas) and continuing with fetishism, nature worship, and totemism (a system of belief involving the relationship of specific animals to clans), shamanism (a system…
- Origin of Continents and Oceans, The (work by Wegener)
Alfred Wegener: …der Kontinente und Ozeane (The Origin of Continents and Oceans). He searched the scientific literature for geological and paleontological evidence that would buttress his theory, and he was able to point to many closely related fossil organisms and similar rock strata that occurred on widely separated continents, particularly those…
- Origin of Ideas, The (work by Rosmini)
Antonio Rosmini-Serbati: (1830; The Origin of Ideas), embroiled him in theological controversies throughout his lifetime. His philosophy attempted to reconcile Catholic theology with modern political and social thought. The centre of his philosophical system is the concept of ideal being, which is a reflection of God in humankind;…
- origin of life
life: The origin of life: Perhaps the most fundamental and at the same time the least understood biological problem is the origin of life. It is central to many scientific and philosophical problems and to any consideration of extraterrestrial life. Most of the hypotheses of the…
- Origin of Races, The (work by Coon)
Carleton S. Coon: …of the highly controversial work Origin of Races (1962). In 1949 Coon unearthed approximately 31,000 agricultural artifacts—some dating to about 6050 bce—while exploring Belt Cave in northern Iran. Two years later he returned to Iran and excavated Hotu Cave, which contained thick rock deposits that revealed an unbroken cultural sequence…
- origin of replication (genetics)
heredity: DNA replication: …on the DNA called the origin of replication. In higher organisms, replication begins at multiple origins of replication and moves along the DNA in both directions outward from each origin, creating two replication “forks.” The events at both replication forks are identical. In order for DNA to replicate, however, the…
- Origin of Satan, The (work by Pagels)
Elaine Pagels: …their way into two books: The Origin of Satan (1995), which discusses the tendency within the Christian tradition to demonize one’s opponents, and Beyond Belief: The Secret Gospel of Thomas (2003), which argues that the Gospel of Thomas—whose composition she dated to the mid-1st century, about a century earlier than…
- Origin of Species (work by Darwin)
instinct: Darwin’s conception of motivational instinct: …“Instinct” in his crucial work On the Origin of Species (1859), he declined to attempt to define the term:
- Origin of the Brunists, The (novel by Coover)
Robert Coover: …first, and most conventional, novel, The Origin of the Brunists (1966), tells of the rise and eventual disintegration of a religious cult. The protagonist of The Universal Baseball Association, Inc. (1968) creates an imaginary baseball league in which fictitious players take charge of their own lives. Written in the voice…
- Origin of the Species, and Other Poems (poetry by Cardenal)
Ernesto Cardenal: …Especies, y Otros Poemas (2011; Origin of the Species, and Other Poems). He won numerous awards and honours.
- Origin, The (work by Stone)
Irving Stone: … (1971), about Sigmund Freud; and The Origin (1980), a life of Charles Darwin centred on the voyage of the Beagle and its aftermath.
- Origin, Variation, Immunity and Breeding of Cultivated Plants, The (work by Vavilov)
Nikolai Vavilov: …conclusions were summarized in The Origin, Variation, Immunity and Breeding of Cultivated Plants (Eng. trans. by K.S. Chester, 1951). In 1920 he expanded the theory, stating that the region of greatest diversity of a species of plant represents its centre of origin. He eventually proposed 13 world centres of plant…
- Original (lifeboat)
lifeboat: Named the “Original,” the double-ended, ten-oared craft remained in service for 40 years and became the prototype for other lifeboats. In 1807 the first practical line-throwing device was invented. In 1890 the first mechanically powered, land-based lifeboat was launched, equipped with a steam engine; in 1904 the…
- original acquisition (law)
property: …be acquired by various “original modes” of acquisition. For instance, “occupancy” is a means of original acquisition when the thing possessed belonged to no one formerly. A thing can also be acquired if someone possesses it for a certain period of time as if he were the owner. This…
- Original African Hebrew Israelite Nation of Jerusalem, The (religious community)
Black Hebrew Israelites, African American religious community in Israel, the members of which consider themselves to be the descendents of a lost tribe of Israel. Black Hebrew Israelites hold religious beliefs that differ from those of modern Jewish communities in Israel. Black Hebrew Israelites
- Original Amateur Hour, The (American radio and television show)
Television in the United States: Reality TV: …competition in the tradition of The Original Amateur Hour, which had aired on the radio in the 1930s and ’40s and then on television from 1948 through 1970, spending some time on each of the four networks. As was the case with The Original Amateur Hour, American Idol was responsible…
- Original Ballet Russe (British ballet company)
Ballet Russe de Monte Carlo: …Ballet Russe and finally the Original Ballet Russe (1939); the company toured internationally before dissolving in 1948.
- Original Celtics (American basketball team)
basketball: U.S. professional basketball: …heralded professional team was the Original Celtics, which started out in 1915 as a group of youngsters from New York City, kept adding better players in the early 1920s, and became so invincible that the team disbanded in 1928, only to regroup in the early 1930s as the New York…
- Original Dixieland Jass Band (American musical group)
Dixieland: …Laine’s band when forming the Original Dixieland Jazz (originally “Jass”) Band (ODJB) in 1916. A highly influential group, the ODJB also borrowed from the marching band tradition in employing the trumpet (or cornet), clarinet, and trombone as front-line instruments. The following year, the ODJB cut what is regarded as the…
- Original Dixieland Jazz Band (American musical group)
Dixieland: …Laine’s band when forming the Original Dixieland Jazz (originally “Jass”) Band (ODJB) in 1916. A highly influential group, the ODJB also borrowed from the marching band tradition in employing the trumpet (or cornet), clarinet, and trombone as front-line instruments. The following year, the ODJB cut what is regarded as the…
- Original Kings of Comedy, The (film by Lee [2000])
Spike Lee: …to direct nonfiction films, including The Original Kings of Comedy (2000), which showcased African American stand-up comedians, and When the Levees Broke (2006), a four-part HBO series outlining the U.S. government’s inadequate response to Hurricane Katrina. A follow-up series, If God Is Willing and da Creek Don’t Rise, aired in…
- Original Medicare vs. Medicare Advantage: Which is right for me?
A Medicare beneficiary’s first decision.Signing up for Medicare is easy if you’re eligible. All you need to do is fill out a simple form on the Social Security Administration website (ssa.gov), or sign up in person at a regional office, and within weeks an iconic red, white, and blue wallet-size
- Original of Laura, The (novel by Nabokov)
Vladimir Nabokov: The Original of Laura: …to become his final novel, The Original of Laura. On his deathbed, he instructed his wife, Véra, to burn the unfinished work. She instead placed it in a Swiss bank vault, where it remained the object of much speculation for three decades. With Véra’s death in 1991, responsibility for the…
- Original Poems for Infant Minds (work by Ann and Jane Taylor)
children’s literature: From T.W. to Alice (1712?–1865): …century was not Blake but Original Poems for Infant Minds (1804), by “Several Young Persons,” including Ann and Jane Taylor. The Taylor sisters, though adequately moral, struck a new note of sweetness, of humour, at any rate of nonpriggishness. Their “Twinkle, twinkle, little star,” included in Rhymes for the Nursery…
- original print (printmaking)
printmaking: …between a reproduction and an original print? In the very early days of printmaking, this was not a serious problem, because the print was not looked upon as a precious art object and prices were low. The question of originality became an issue only in the 18th century, and in…
- original sin (theology)
original sin, in Christian doctrine, the condition or state of sin into which each human being is born; also, the origin (i.e., the cause, or source) of this state. Traditionally, the origin has been ascribed to the sin of the first man, Adam, who disobeyed God in eating the forbidden fruit (of
- Original Unity of Man and Woman (work by John Paul II)
St. John Paul II: Ecclesiastical and theological contributions: …of brief homilies (published as Original Unity of Man and Woman, 1981) that some stories in Genesis, including the story of Adam and Eve, should be understood as inspired metaphor. In 1984 the Vatican declared that the church’s condemnation of Galileo in 1633 had been in error; John Paul subsequently…
- original-equipment manufacturer (business)
marketing: Business marketing: Original-equipment manufacturers incorporate the purchased goods into their final products, which are then sold to final consumers. Industrial resellers are middlemen—essentially wholesalers but in some cases retailers—who distribute goods to user customers, to original-equipment manufacturers, and to other middlemen. Industrial-goods wholesalers include mill-supply houses, steel…
- originalism (judicial philosophy)
Federalist Society: …constitutional and statutory interpretation—known as originalism and textualism, respectively—that supposedly prevent judicial misreadings of the law by emphasizing the public meanings of the words in which a constitutional or legal provision was expressed at the time it was written rather than the intentions of the provision’s drafters. Notably, the Federalist…
- Origines (work by Cato)
Marcus Porcius Cato: He was the author of Origines, the first history of Rome composed in Latin. This work, of whose seven books only a few fragments survive, related the traditions of the founding of Rome and other Italian cities. Cato’s only surviving work is De agri cultura (On Farming), a treatise on…
- Origines de l’homme américain, Les (work by Rivet)
Paul Rivet: His book Les Origines de l’homme américain (1943; “The Origins of American Man”) contained linguistic and anthropological evidence supporting his migration thesis.
- Origines de la France contemporaine, Les (work by Taine)
Hippolyte Taine: Historical theories: …to his great historical work, Les Origines de la France contemporaine (“The Origins of Contemporary France”), a monumental analysis, claiming scientific objectivity (although its factual and interpretative reliability have been challenged). It seeks to show that France’s primary fault lay in excessive centralization, originating during the ancien régime, and intensified…
- Origines Judaicae (work by Toland)
John Toland: In Origines Judaicae (1709; “Origins of the Jews”), Toland claimed that the Jewish people were of Egyptian origin. During his last years, spent primarily in political pamphleteering in England, he wrote Reasons for Naturalizing the Jews (1713) and Nazarenus (1718), in which he discussed the role…
- Origins (work by Leakey and Lewin)
Richard Leakey: …with science writer Roger Lewin, Origins (1977) and People of the Lake (1978), Leakey presented his view that, some 3 million years ago, three hominin forms coexisted: Homo habilis, Australopithecus africanus, and Australopithecus boisei. He argued that the two australopith forms eventually died out and that H. habilis evolved into…
- Origins of Life (work by Dyson)
Freeman Dyson: …including Weapons and Hope (1984), Origins of Life (1985), Infinite in All Directions (1988), Imagined Worlds (1998), and The Sun, the Genome, and the Internet (1999). Disturbing the Universe (1979) and the epistolary Maker of Patterns (2018) are autobiographies.
- Origins of the Family, Private Property, and the State, The (work by Engels)
kinship: The evolution of family forms: Engels’s The Origins of the Family, Private Property, and the State (1884) was in fact largely based on Morgan’s Ancient Society. It traced the evolution of family forms, linking them, as Morgan had done, to changes in technology and arrangements for the ownership of property. Despite…
- Origins of the Islamic State, The (work by al-Balādhurī)
al-Balādhurī: …condensation of a longer history, Futūḥ al-buldān (The Origins of the Islamic State, 1916, 1924), tells of the wars and conquests of the Muslim Arabs from the time of the Prophet Muhammad. It covers the conquests of lands from Arabia west to Egypt, North Africa, and Spain and east to…
- Origins of the New South 1877–1913 (work by Woodward)
C. Vann Woodward: In Origins of the New South 1877–1913 (1951), he examined the disenfranchisement of Southern blacks in the 1890s in the light of political struggles between poor white farmers, agrarian reformers, and Populist politicians on the one hand and the large mercantile, industrial, and landholding interests on…
- Origins of the Olympic Winter Games
Origins of the Olympic Winter Games, The first organized international competition involving winter sports was introduced just five years after the birth of the modern Olympics in 1896. This competition, the Nordic Games, included only athletes from the Scandinavian countries and was held
- Origins of the Synagogue and the Church, The (work by Kohler)
Kaufmann Kohler: A posthumous work, The Origins of the Synagogue and the Church (1929), concerns the relationship of the Jews and the early Christians and speculates that Jesus and John the Baptist were Essenes—members of a Jewish sect that believed that the messianic era was imminent.
- Origins of the World War (work by Fay)
Sidney Bradshaw Fay: His Origins of the World War, 2 vol. (1928), resulted from his exhaustive study of previously uninvestigated archives and documents. He proposed the thesis of collective responsibility for the outbreak of war, placing blame on Serbia’s independent role in the assassination of Archduke Franz Ferdinand (June…
- Origins of Totalitarian Democracy, The (work by Talmon)
Jacob Talmon: …remains associated with his work The Origins of Totalitarian Democracy (1952), for which he was awarded the Israel Prize for Social Sciences in 1956. In that work, Talmon sought to uncover the roots of modern political ideologies, tracing a direct line between, for instance, Jacobinism and Stalinism. Talmon also argued…
- Origins of Totalitarianism (work by Arendt)
Hannah Arendt: …thinker was established by her Origins of Totalitarianism (1951), which also treated 19th-century anti-Semitism, imperialism, and racism. Arendt viewed the growth of totalitarianism as the outcome of the disintegration of the traditional nation-state. She argued that totalitarian regimes, through their pursuit of raw political power and their neglect of material…
- Origins, Spectral Interpretation, Resource Identification, Security-Regolith Explorer (United States space probe)
OSIRIS-REx, American spacecraft that orbited the asteroid Bennu and returned a sample of it to Earth. The roughly 250-gram (9-ounce) sample was the largest extraterrestrial sample returned to Earth since the Apollo missions to the Moon and the first asteroid sample collected by an American
- Origo gentis Langobardorum (history of Lombards)
Germanic religion and mythology: Early medieval records: … is given in a tract, Origo gentis Langobardorum (“Origin of the Nation of Lombards”), of the late 7th century. It relates how the goddess Frea, wife of Godan (Wodan), tricked her husband into granting the Lombards victory over the Vandals. The story shows that the divine pair, recognizable from Scandinavian…
- Origo mundi (Cornish drama)
Cornish literature: …examples of Middle Cornish literature: Origo mundi (“Origin of the World”) addresses the Creation, the Fall, and the promise of salvation; Passio Domini (“Passion of the Lord”) describes Christ’s temptation and his Crucifixion; Resurrexio Domini (“Resurrection of the Lord”) covers the Resurrection and Ascension. The Ordinalia cannot be dated with…
- Orihuela (Spain)
Orihuela, city, Alicante provincia (province), in the comunidad autónoma (autonomous community) of Valencia, southeastern Spain. Orihuela lies in the fertile Vega (flat lowland) del Segura, just northeast of Murcia city. A pre-Roman settlement, it became the Roman Orcelis. Captured by the Moors in
- oriki (African literature)
praise song, one of the most widely used poetic forms in Africa; a series of laudatory epithets applied to gods, men, animals, plants, and towns that capture the essence of the object being praised. Professional bards, who may be both praise singers to a chief and court historians of their tribe,
- Orillia (Ontario, Canada)
Orillia, city, Simcoe county, southeastern Ontario, Canada, 60 miles (100 km) north of Toronto, between Lakes Couchiching and Simcoe. The name, probably derived from the Spanish orilla (“border,” “shore,” or “bank”), was suggested by Sir Peregrine Maitland, lieutenant governor of Upper Canada
- Orinda (English poet)
Katherine Philips was an English poet who, as Orinda, the central figure in a literary group in Cardigan, Wales, wrote lyrics on friendship that represent a transition from courtly poetry to the Augustan style typical of Restoration
- Orinoco (tobacco)
tobacco: Cultivation: Orinoco strains, used for flue curing, are grown in rows 1.2 metres (4 feet) apart, with plants 50 to 60 cm (20 to 24 inches) apart in the row. Varieties in the Pryor group are grown to produce the dark air-cured and fire-cured types and…
- Orinoco Basin (region, South America)
Orinoco River: …to the south, the river basin covers an area of about 366,000 square miles (948,000 square km). It encompasses approximately four-fifths of Venezuela and one-fourth of Colombia.
- Orinoco crocodile (reptile)
Orinoco crocodile, (Crocodylus intermedius), large species of crocodile native to grasslands, forests, swamps, marshes, and other freshwater habitats in the Orinoco River basin in Colombia and Venezuela. The Orinoco crocodile is the largest living predator in South America and one of most
- Orinoco four-eyed opossum (marsupial)
four-eyed opossum: The Orinoco four-eyed opossum (P. deltae) occurs in the delta of the Orinoco River in Venezuela. Anderson’s four-eyed opossum (P. andersoni) is found in the northwestern Amazon basin from Venezuela to northern Peru and adjacent Brazil. Mondolfi’s four-eyed opossum (P. mondolfii) is found in Venezuela and…
- Orinoco four-eyed possum (marsupial)
four-eyed opossum: The Orinoco four-eyed opossum (P. deltae) occurs in the delta of the Orinoco River in Venezuela. Anderson’s four-eyed opossum (P. andersoni) is found in the northwestern Amazon basin from Venezuela to northern Peru and adjacent Brazil. Mondolfi’s four-eyed opossum (P. mondolfii) is found in Venezuela and…
- Orinoco goose (bird)
sheldgoose: melanoptera)—and the Orinoco goose (Neochen jubatus). African sheldgeese include the spur-winged goose (Plectropterus gambensis) and the Egyptian goose (Alopochen aegyptiacus).
- Orinoco Heavy Oil Belt (area, Venezuela)
Anzoátegui: The Orinoco Heavy Oil Belt is the site of extensive oil exploration. Pipelines transport natural gas to Caracas, Maracay, Valencia, and Puerto La Cruz, and coal is mined at Naricual.
- Orinoco ilustrado, El (work by Gumilla)
Latin American literature: Historiographies: …of modern physics and geography, El Orinoco ilustrado (1741–45; “The River Orinoco Illustrated”) circulated throughout the Americas and Europe in several languages. Another Jesuit, Juan José de Eguiara y Eguren, put together a literary history of New Spain. His incomplete Bibliotheca mexicana (1755; “Mexicana Library”) brings together the manuscripts and…
- Orinoco River (river, South America)
Orinoco River, major river of South America that flows in a giant arc for some 1,700 miles (2,740 km) from its source in the Guiana Highlands to its mouth on the Atlantic Ocean. Throughout most of its course it flows through Venezuela, except for a section that forms part of the frontier between
- Orinoco, Río (river, South America)
Orinoco River, major river of South America that flows in a giant arc for some 1,700 miles (2,740 km) from its source in the Guiana Highlands to its mouth on the Atlantic Ocean. Throughout most of its course it flows through Venezuela, except for a section that forms part of the frontier between
- Oriol, Pierre (French philosopher)
Petrus Aureoli was a French churchman, philosopher, and critical thinker, called Doctor facundus (“eloquent teacher”), who was important as a forerunner to William of Ockham. Petrus may have become a Franciscan at Gourdon before 1300; he was in Paris (1304) to study, possibly under John Duns
- oriole (bird)
oriole, any of about 30 species of birds of the Old World genus Oriolus, family Oriolidae, or, in the New World, any of the 30 species of Icterus, family Icteridae. Both are families of perching birds (order Passeriformes). Males of either group typically are black and yellow or black and orange,
- Oriole Park at Camden Yards (stadium, Baltimore, Maryland, United States)
Baltimore: The contemporary city: The celebrated Oriole Park at Camden Yards (1992), just west of the Inner Harbor, was the first of the retro-style ballparks designed to look like those built in the early 20th century. Near the stadium is the birthplace of baseball player Babe Ruth, preserved as a shrine…
- Orioles (American baseball team, American League)
Baltimore Orioles, American professional baseball team based in Baltimore, Maryland. Playing in the American League (AL), the Orioles won World Series titles in 1966, 1970, and 1983. The franchise that would become the Orioles was founded in 1894 as a minor league team based in Milwaukee,
- Orioles, the (American music group)
the Orioles, American vocal group of the late 1940s and early ’50s. The members were Sonny Til (byname of Earlington Carl Tilghman; b. August 18, 1925, Baltimore, Maryland, U.S.—d. December 9, 1981, Washington, D.C.), Alexander Sharp (b. December 1919, Baltimore—d. January 1970), George Nelson (b.
- Oriolidae (bird family)
passeriform: Annotated classification: Family Oriolidae (Old World orioles and figbirds) Medium-sized birds, 18 to 30.5 cm (7 to 12 inches); brightly coloured, predominantly in yellows, greens, and black; sexes unalike, female duller, young streaked below. Bill strong, pointed, slightly hooked; long, pointed wings with 10 primaries; medium to long…
- Oriolus auratus (bird)
oriole: The African golden oriole (O. auratus) is similar. The maroon oriole (O. traillii) of the Himalayas to Indochina is one of the Asian species of oriole that have a glowing crimson colouring instead of the ordinary yellow one. Northern Australia has the yellow oriole (O. flavicinctus),…
- Oriolus flavicinctus (bird, Oriolus species)
oriole: Northern Australia has the yellow oriole (O. flavicinctus), which is strictly a fruit eater.
- Oriolus oriolus (bird)
oriole: 5-inch) golden oriole (O. oriolus), which ranges eastward to Central Asia and India. It is yellow, with dark eye marks and black wings. The African golden oriole (O. auratus) is similar. The maroon oriole (O. traillii) of the Himalayas to Indochina is one of the Asian…
- Oriolus traillii (bird)
oriole: The maroon oriole (O. traillii) of the Himalayas to Indochina is one of the Asian species of oriole that have a glowing crimson colouring instead of the ordinary yellow one. Northern Australia has the yellow oriole (O. flavicinctus), which is strictly a fruit eater.
- Orion (spacecraft)
Artemis: …continued on the crewed spacecraft Orion. Ultimately, Orion became part of the Artemis lunar exploration program proposed by the Donald Trump administration.
- Orion (Greek mythology)
Orion, in Greek mythology, a giant and very handsome hunter who was identified as early as Homer (Iliad, Book XVIII) with the constellation known by his name. The story of Orion has many different versions. He is considered to be Boeotian by birth, born (according to a late legend) of the earth
- Orion (battleship)
warship: Battleships: …Royal Navy laid down HMS Orion, the first “super dreadnought,” which displaced 22,500 tons and was armed with 13.5-inch guns. The U.S. Navy followed with ships armed with 14-inch guns. Then, on the eve of World War I, the Royal Navy went a step further with HMS Queen Elizabeth, armed…