Chris Evert: …her marriage to tennis player John Lloyd in 1979, she adopted the name Evert Lloyd (the couple divorced in 1987). She added to her success with victories at the U.S. Open (1980 and 1982), Wimbledon (1981), the Virginia Slims (1987), the French Open (1979, 1980, 1983, 1985, and 1986), and…

John Henry Lloyd was an American baseball player and manager in the Negro leagues, considered one of the greatest shortstops in the game. Lloyd’s well-traveled Negro league career began in 1905, when he was a catcher for the Macon Acmes. He played second base for the Cuban X-Giants the following

Selwyn Lloyd was a British Conservative politician who was foreign secretary during Britain’s diplomatic humiliation in the Suez crisis of 1956 and later chancellor of the exchequer under Prime Minister Harold Macmillan. Lloyd studied law at Cambridge and was called to the bar in 1930. After World

Jane Mander was a writer noted for her realistic novels about her native land and her frank treatment of sexual issues. Mander grew up on the northern New Zealand frontier and had little formal schooling. At the age of 15 she taught primary school while completing her high-school education under a

Marie Lloyd was the foremost English music-hall artiste of the late 19th century, who became well known in the London, or Cockney, low comedy then popular. She first appeared in 1885 at the Eagle Music Hall under the name Bella Delmare. Six weeks later she adopted her permanent stage name. T.S.

Norman Lloyd was an American composer and teacher, best known for his contribution to music theory. During the 1930s Lloyd collaborated with choreographers at Bennington College in Vermont, where they worked on the scoring of such dances as Panorama (1935) for Martha Graham, Lament (1946) for Doris

John Henry Lloyd was an American baseball player and manager in the Negro leagues, considered one of the greatest shortstops in the game. Lloyd’s well-traveled Negro league career began in 1905, when he was a catcher for the Macon Acmes. He played second base for the Cuban X-Giants the following

Television: 1949), Richard Lloyd (b. October 25, 1951, Pittsburgh, Pennsylvania), and Fred Smith (b. April 10, 1948, New York, New York).

Richard Llewellyn was a Welsh novelist and playwright, known especially for How Green Was My Valley (1939; filmed 1941), a best-selling novel about a Welsh mining family. It was followed by Up, Into the Singing Mountain (1960), And I Shall Sleep . . . Down Where the Moon Is Small (1966), and Green,

Selwyn Lloyd was a British Conservative politician who was foreign secretary during Britain’s diplomatic humiliation in the Suez crisis of 1956 and later chancellor of the exchequer under Prime Minister Harold Macmillan. Lloyd studied law at Cambridge and was called to the bar in 1930. After World

Lloyds Banking Group, one of the largest comprehensive commercial banks in the United Kingdom, with subsidiary banks in other countries. It is also a major insurance company. Lloyds Banking Group is headquartered in London. The bank was established as Taylor and Lloyd in 1765 and renamed Lloyds and

Lloyds Banking Group, one of the largest comprehensive commercial banks in the United Kingdom, with subsidiary banks in other countries. It is also a major insurance company. Lloyds Banking Group is headquartered in London. The bank was established as Taylor and Lloyd in 1765 and renamed Lloyds and

Lloyds Banking Group, one of the largest comprehensive commercial banks in the United Kingdom, with subsidiary banks in other countries. It is also a major insurance company. Lloyds Banking Group is headquartered in London. The bank was established as Taylor and Lloyd in 1765 and renamed Lloyds and

Lluc, (Anoiapithecus brevirostris), nickname for the nearly complete upper and lower jaws and much of the associated facial region of an adult male hominid found in 2004 at the Abocador de Can Mata site in Catalonia, Spain. Lluc is the only known specimen of Anoiapithecus brevirostris, a species

Nuadu, in Celtic mythology, king of the Tuatha Dé Danann, who lost his hand in the battle of Mag Tuired and with it his right to govern. Dian Cécht replaced the hand with a hand made of silver; he later received a functional human hand from Dian Cécht’s son Miach and was thereupon able to overthrow

Ramon Llull was a Catalan mystic and poet whose writings helped to develop the Romance Catalan language and widely influenced Neoplatonic mysticism throughout medieval and 17th-century Europe. He is best known in the history of ideas as the inventor of an “art of finding truth” (ars inveniendi

Andes Mountains: Physiography of the Central Andes: …of El Cóndor, Sierra Nevada, Llullaillaco, Galán, and Antofalla all exceed 19,000 feet. The two main ranges and several volcanic secondary chains enclose depressions called salars because of the deposits of salts they contain; in northwestern Argentina, the Sierra de Calalaste encompasses the large Antofalla Salt Flat. Volcanoes of this…

nuclear ceramics: Low-level waste: ) Over the years low-level wastes (LLW) have accumulated from the processing of nuclear fuels and wastes. These consist of aqueous solutions and sludges, which customarily have been stored in steel-lined underground tanks. However, concerns over actual and potential leaks from these tanks leading…

Elfyn Llwyd is a Welsh politician who served as parliamentary leader of the Plaid Cymru (PC) party in the Welsh National Assembly from 1999 to 2005; he also served as PC’s parliamentary group leader in the British House of Commons (2007–15). Llwyd was educated at Aberystwyth University and at

Morgan Llwyd was a Puritan writer whose Llyfr y Tri Aderyn (1653; “The Book of the Three Birds”) is considered the most important original Welsh work published during the 17th century. One of the most widely read of Welsh classics, the work is in two parts, on the theory of government and on

Morgan Llwyd: …was a Puritan writer whose Llyfr y Tri Aderyn (1653; “The Book of the Three Birds”) is considered the most important original Welsh work published during the 17th century. One of the most widely read of Welsh classics, the work is in two parts, on the theory of government and…

Llyr, in Celtic mythology, leader of one of two warring families of gods; according to one interpretation, the Children of Llyr were the powers of darkness, constantly in conflict with the Children of Dôn, the powers of light. In Welsh tradition, Llyr and his son Manawydan, like the Irish gods Lir

Celtic literature: Welsh literature in the 17th century: …government and religious liberty, and Llythur ir Cymru Cariadus (c. 1653; “Letter to the Beloved Welsh”), which expounded a mystical gospel. Among the clergy who produced some of the many translations, mostly of religious originals, during this period were Edward Samuel; Moses Williams, a diligent searcher into manuscripts; Griffith Jones,…

Llywarch Hen was the central figure in a cycle of poems composed in the 9th or 10th century in Powys (Wales). Set against the background of the struggle of the Welsh of the kingdom of Powys against the Anglo-Saxons of Mercia, the poems speak of heroic virtues, express laments for fallen heroes, and

Llywelyn Ap Gruffudd was the prince of Gwynedd in northern Wales who struggled unsuccessfully to drive the English from Welsh territory. He was the only Welsh ruler to be officially recognized by the English as the prince of Wales, but within a year after his death Wales fell completely under

Llywelyn Ap Iorwerth was a Welsh prince, the most outstanding native ruler to appear in Wales before the region came under English rule in 1283. Llywelyn was the grandson of Owain Gwynedd (d. 1170), a powerful ruler of Gwynedd in northern Wales. While still a child, Llywelyn was exiled by his

Celtic literature: The Middle Ages: Llywelyn Goch Amheurug Hen wrote some early poems in the gogynfeirdd tradition, but his “Elegy to Lleucu Llwyd” successfully combined the Welsh elegy tradition with the imported serenade form.

Llywelyn Ap Iorwerth was a Welsh prince, the most outstanding native ruler to appear in Wales before the region came under English rule in 1283. Llywelyn was the grandson of Owain Gwynedd (d. 1170), a powerful ruler of Gwynedd in northern Wales. While still a child, Llywelyn was exiled by his

Lewis Glyn Cothi was a Welsh bard whose work reflects an awakening of national consciousness among the Welsh. Reputedly a native of Carmarthenshire, Lewis was, during the Wars of the Roses, a zealous Lancastrian and partisan of Jasper Tudor, the uncle of Henry VII of England. His awdl (ode)

lumen, unit of luminous flux, or amount of light, defined as the amount streaming outward through one steradian (a unit of solid angle, part of the volume of space illuminated by a light source) from a uniform point source having an intensity of one candela. The lumen is used in calculations

machine tool: Laser machining (LM): LM is a method of cutting metal or refractory materials by melting and vaporizing the material with an intense beam of light from a laser. Drilling by laser, although costly in energy since material must be melted and vaporized to be removed, is…

Long March, family of Chinese launch vehicles. Like those of the United States and Soviet Union, China’s first launch vehicles were also based on ballistic missiles. The Long March 1 (LM-1, or Chang Zheng 1) vehicle, which put China’s first satellite into orbit in 1970, was based on the Dong Feng 3

Apollo: …of the CSM was the lunar module (LM). One astronaut stayed in the CSM while the other two landed on the Moon in the LM. The LM had a descent stage and an ascent stage. The descent stage was left on the Moon, and the astronauts returned to the CSM…

Magellanic Cloud: One of them, the Large Magellanic Cloud (LMC), is a luminous patch about 5° in diameter, and the other, the Small Magellanic Cloud (SMC), measures less than 2° across. The Magellanic Clouds are visible to the unaided eye in the Southern Hemisphere, but they cannot be observed from most…

Tubmanburg: …was long associated with the Liberian Mining Company (LMC; a subsidiary of Republic Steel Corporation), which closed down mining operations in the late 1970s. The firm, the first in Liberia to export iron ore, completed a 43-mile (69-km) narrow-gauge railway to the port at Monrovia in 1951. Iron interests added…

African dance: Rhythm: …dance pattern, as in the Lmele le dag Chun dance of the Birom girls of the Jos Plateau.

nuclear reactor: Liquid-metal reactors: Sodium-cooled fast-neutron-spectrum liquid-metal reactors (LMRs) received much attention during the 1960s and ’70s when it appeared that their breeding capabilities would soon be needed to supply fissile material to a rapidly expanding nuclear industry. When it became clear in the 1980s that this…

Deepwater Horizon oil spill: Leaking oil: …to an apparatus called the Lower Marine Riser Package (LMRP) cap. With the damaged riser shorn from the LMRP—the top segment of the BOP—the cap was lowered into place. Though fitted loosely over the BOP and allowing some oil to escape, the cap enabled BP to siphon approximately 15,000 barrels…

Congregationalism: England: …was the founding of the Missionary Society (1795), later named the London Missionary Society (1818). Its purpose was not necessarily to spread Congregationalism but to proclaim “the glorious gospel of the blessed God,” leaving the new churches to determine their own form. Although it has always received support from Congregational…

Poland: Accommodation with the ruling governments: …Democratic movement originated with a Polish League organized in Switzerland; by 1893 the organization had transformed into the clandestine National League, based in Warsaw. It stressed its all-Polish character, rejected loyalism, and promoted national resistance, even uprisings, when opportune. Its nationalist ideology tinged with populism gradually evolved into “integral” nationalism,…

natural logarithm (ln), logarithm with base e = 2.718281828…. That is, ln (ex) = x, where ex is the exponential function. The natural logarithm function is defined by ln x = 1 x dt t for x > 0; therefore the derivative of the natural logarithm is d dx ln x = 1 x . The natural logarithm is one of

Umberto Bossi: …the leader (1991–2012) of the Northern League (Lega Nord) party.

Libya: Competing governments in Tripoli and Tobruk: …the leader of the self-styled Libyan National Army (LNA), led his forces against Islamists and their allies in eastern Libya in an offensive dubbed Operation Dignity. He condemned the GNC as dominated by Islamists, and fighters loyal to him made an unsuccessful attempt to seize the parliament building in Tripoli…

liquefied natural gas (LNG), natural gas (primarily methane) that has been liquefied for ease of storing and transporting. Liquefied natural gas (LNG) is 600 times smaller than natural gas when the latter is in its gaseous form, and it can be easily shipped overseas. LNG is produced by cooling

Tibet: Festivals: This festival is known as Lnga-mchod. The Dgu-gtor festival, or festival of the banishment of evil spirits, takes place on the 29th day of the last month of the Tibetan year. At night a bowl of flour soup and a bunch of burning straws are taken into every room of…

limited nuclear options (LNO), military strategy of the Cold War era that envisioned a direct confrontation between the two nuclear superpowers (i.e., the Soviet Union and the United States) that did not necessarily end in either surrender or massive destruction and the loss of millions of lives on

luo, any of several sizes and styles of Chinese gong. The most common luo are characteristically round and convex in shape, with edges that are turned toward the back. They come in many sizes and may be played singly or in groups; small luo of different sizes (and therefore pitches) may be hung

African art: Senufo: …adult Senufo men belong to Poro, and the society maintains the continuity of religious and historical traditions. During initiation, young men are instructed through the use of sculptural figures. Some with massive bases are carried in procession by initiates, who swing them from side to side and strike the earth…

Norway: Labour and taxation: …influential labour union is the Norwegian Confederation of Trade Unions (Landsorganisasjonen i Norge; LO), which was established in 1899 and has more than 800,000 members. Other important labour unions are the Confederation of Vocational Unions (Yrkesorganisasjonenes Sentralforbund; YS) and the Federation of Norwegian Professional Associations (Akademikerne).

Werner Herzog: …a Texas murder case; and Lo and Behold: Reveries of the Connected World (2016), about the Internet. In Meeting Gorbachev (2018; codirected with Andre Singer), he chronicled the life of the former president of the Soviet Union. Nomad: In the Footsteps of Bruce Chatwin (2019) centres on the British author…

Luo Guanzhong was a Chinese writer who traditionally has been credited as the author of the novels Sanguozhi yanyi (Romance of the Three Kingdoms) and Shuihuzhuan (Water Margin, or All Men Are Brothers), which are classics of Chinese literature. Little is known with confidence about Luo’s life. His

biblical literature: Hosea: …second, a daughter, is named Lo Ruḥama (Not pitied), to indicate that Yahweh was no longer to be patient with Israel, the northern kingdom. The third child, a son, is named Lo ʿAmmi (Not my people), signifying that Yahweh was no longer to be the God of a people who…

laque burgauté, in the decorative arts, East Asian technique of decorating lacquer ware with inlaid designs employing shaped pieces of the iridescent blue-green shell of the sea-ear (Haliotis). This shell inlay is sometimes engraved and occasionally combined with gold and silver. Workmanship is

Aḥad Haʿam: …he published his first essay, “Lo ze ha-derekh” (1889; “This Is Not the Way”), which emphasized the spiritual basis of Zionism.

Kiriath-sepher, ancient town of Palestine, located near Hebron in the West Bank. According to the Bible, the town was taken from the Canaanites either by Caleb’s son-in-law Othniel or by Joshua himself. Tall Bayt Mirsham (Tell Beit Mirsim) was excavated (1926–32) by W.F. Albright, who uncovered

lo-fi music, genre of music production in which a recording is intentionally rendered to include imperfections, such as harmonic distortion, background noise, or other anomalous sounds. Such irregularities are normally filtered out of professional recordings, since they generally are undesirable.

Luohe, city, central Henan sheng (province), east-central China. It is situated on the Sha River, which flows southeastward to the Huai River, at the point where it is crossed by the main Beijing-Guangzhou (Canton) railway. It is a focus not only for rail and river transport but also for the local

Ivar Lo-Johansson was a Swedish writer and social critic who in more than 50 “proletarian” novels and short-story collections depicted the lives of working-class people with great compassion. Lo-Johansson was first recognized in the mid-1930s for his detailed and realistic depiction of the plight

Ivar Lo-Johansson was a Swedish writer and social critic who in more than 50 “proletarian” novels and short-story collections depicted the lives of working-class people with great compassion. Lo-Johansson was first recognized in the mid-1930s for his detailed and realistic depiction of the plight

luogu, Chinese percussion ensemble composed of a variety of instruments, including—in addition to an assortment of gongs and drums—cymbals, bells, and woodblocks. The luogu accompanies parades, folk dances, and theatre. Luogu also are present to accompany the popular lion dance held during the

Nangnang, one of four colonies (Nangnang, Chinbŏn, Imdun, and Hyŏnto) established in 108 bce by the emperor Wudi of the Han dynasty (206 bce–220 ce) of China when he conquered the ancient Korean state of Wiman (later named Chosŏn). Nangnang, which occupied the northwestern portion of the Korean

Parnashavari, in Vajrayana or Tantric Buddhism, a goddess distinguished by the girdle of leaves she wears. She is known as Lo-ma-gyon-ma in Tibet and as Hiyōi in Japan. Parnashavari is apparently derived from an aboriginal deity, and one of her titles is Sarvashavaranam Bhagavati, or “goddess of

Lop Nur, former saline lake in northwestern China that is now a salt-encrusted lake bed. It lies within the Tarim Basin of the eastern Takla Makan Desert, in the Uygur Autonomous Region of Xinjiang, and is one of the most barren areas of China. The former lake, occupying roughly 770 square miles

Luoyang, city, northwestern Henan sheng (province), east-central China. It was important in history as the capital of nine ruling dynasties and as a Buddhist centre. The contemporary city is divided into an east town and a west town. Luoyi (present-day Luoyang) was founded in the mid-11th century

lwa, the primary spirits of Vodou. They are akin to the orishas of Yoruba religion and of similar Afro-Caribbean new religious movements, but, unlike the orishas, the lwa are not deities but are spirits, whether of human or divine origin, that were created by Bondye (God) to assist the living in

eye worm, (species Loa loa), common parasite of humans and other primates in central and western Africa, a member of the phylum Nematoda. It is transmitted to humans by the deerfly, Chrysops (the intermediate host), which feeds on primate blood. When the fly alights on a human victim, the worm

Loa River, river, northern Chile. The longest river in Chile, it rises in the Andes at the base of Miño Volcano, near the Bolivian border, and flows southwest through the mountains, emerging at the oasis of Calama; it then veers westward and northward across the Atacama Desert. About 45 miles (70

loach, any of the small, generally elongated freshwater fishes of the family Cobitidae. More than 200 species are known; most are native to central and southern Asia, but three are found in Europe and one in northern Africa. A typical loach has very small scales and three to six pairs of

ostariophysan: Annotated classification: Family Amphiliidae (loach catfishes) Similar to Bagridae, but paired fins expanding horizontally for adhesion in fast currents. Size to 21 cm (about 8 inches). Africa. 12 genera, 66 species. Family Sisoridae (mountain-stream catfishes) Ventral surface flat; thorax with longitudinal plates or adhesive organ. Size to 30 cm…

perciform: Annotated classification: Family Rhyacichthyidae (loach gobies) Pelvic fins widely separated; head flattish, pointed; mouth ventral; lateral line present. 2 genera with about 3 species living in torrential mountain streams of Indonesian Archipelago and throughout western Pacific; size up to 33 cm (13 inches). Family Odontobutidae Freshwater, Eurasia. Scapula large;…

Ken Loach is a British director whose works are considered landmarks of social realism. Loach studied law at St. Peter’s College, Oxford, but while there he became interested in acting. After graduating in 1957, he spent two years in the Royal Air Force and then began a career in the dramatic arts.

Ken Loach is a British director whose works are considered landmarks of social realism. Loach studied law at St. Peter’s College, Oxford, but while there he became interested in acting. After graduating in 1957, he spent two years in the Royal Air Force and then began a career in the dramatic arts.

Metallica: …a Southern rock sound on Load (1996) and its follow-up Reload (1997). The two albums were seen as more commercially accessible than previous releases, and “The Memory Remains,” a song featuring haunting backing vocals by Marianne Faithfull, demonstrated that Hetfield retained his knack for aggressive and intelligent lyrics. However, the…

sedimentary rock: Deformation structures: …as follows: (1) founder and load structures, (2) convoluted structures, (3) slump structures, (4) injection structures, such as sandstone dikes or sills, and (5) organic structures.

Plimsoll line, internationally agreed-upon reference line marking the loading limit for cargo ships. At the instigation of one of its members, Samuel Plimsoll, a merchant and shipping reformer, the British Parliament, in the Merchant Shipping Act of 1875, provided for the marking of a load line on

Fernando Ortiz: His Un catauro de cubanismos (1923; “A Load of Cubanisms”) identifies the African origins of many words used in Cuba, as well as the different origins of other words. Ortiz followed this with the Glosario de Afronegrismos, estudio de lingüística, lexicología, etimología y semántica (1924; “A…

radiation measurement: Pulse mode: …the circuit consisting of a load resistance (R) and capacitance (C). This type of configuration has an associated time constant given by the product of the resistance and capacitance values (RC). For simplicity, it will be assumed that this time constant is long compared with the charge collection time in…

bearing wall, Wall that carries the load of floors and roof above in addition to its own weight. The traditional masonry bearing wall is thickened in proportion to the forces it has to resist: its own weight, the dead load of floors and roof, the live load of people, as well as the lateral forces

the Velvet Underground: …The Velvet Underground (1969) and Loaded (1970). But the strain of commercial failure led Reed to quit in August 1970. A version of the band led by Yule limped into the early 1970s.

dice: Cheating with dice: Loaded dice (called tappers, missouts, passers, floppers, cappers, or spot loaders, depending on how and where extra weight has been applied) may prove to be perfect cubes when measured with calipers, but extra weight just below the surface on some sides will make the opposite…

Olympic Games: Atlanta, Georgia, U.S., 1996: gold medals: Aleksandr Popov (Russia), Danyon Loader (New Zealand), and Denis Pankratov (Russia). In women’s gymnastics the team event was won by the surprising U.S. squad, while the individual contests were dominated by Lilia Podkopayeva (Ukraine), who won two gold medals and one silver, including the title in the all-around.…

loading, in communications technology, addition of inductance to an antenna or at periodic intervals to a transmission line to improve operating characteristics. Loading coils in telephone lines may be spaced as close as one mile. Counteracting the effects of capacitance, they make line impedance

rock: Effect of environmental conditions: (6) The rate of loading (i.e., the rate at which stress is applied) influences mechanical properties. (7) Compaction, as would occur with burial to depth, reduces the volume of pore space for sedimentary rocks and the crack porosity for crystalline rocks.

telephone: Problems of interference and attenuation: …that introducing inductive coils (loading coils) at regular intervals along the length of the telephone line could significantly reduce the attenuation of signals within the voice band (i.e., at frequencies less than 3.5 kilohertz). Both Campbell and Pupin applied for a patent on the concept of loading coils; after…

coal mining: Shovels and trucks: …mines: the stripping shovel, the loading (or quarry-mine) shovel, and the hydraulic shovel. The hydraulic mining shovel has been widely used for coal and rock loading since the 1970s. The hydraulic system of power transmission greatly simplifies the power train, eliminates a number of mechanical components that are present in…

mining: Horizontal openings: drifts: Known as LHD units, these come in various sizes denoted by the volume or weight of the load that they can carry. The smallest ones have a capacity of less than 1 cubic metre (1 ton), whereas the largest have a 25-ton capacity. In small, narrow vein…

mining: Pit geometry: …separating large blocks, sometimes called loafs, from the surrounding rock. These blocks may be 6 metres high by 6 metres deep and 12 to 18 metres (about 40 to 60 feet) long, and they may weigh in the range of 1,200 to 2,000 tons. (Such large blocks are subsequently divided…

loam, Rich, friable (crumbly) soil with nearly equal parts of sand and silt, and somewhat less clay. The term is sometimes used imprecisely to mean earth or soil in general. Loam in subsoil receives varied minerals and amounts of clay by leaching (percolation) from the topsoil

credit, transaction between two parties in which one (the creditor or lender) supplies money, goods, services, or securities in return for a promised future payment by the other (the debtor or borrower). Such transactions normally include the payment of interest to the lender. Credit may be

savings and loan association, a savings and home-financing institution that makes loans for the purchase of private housing, home improvements, and new construction. Formerly cooperative institutions in which savers were shareholders in the association and received dividends in proportion to the

Luanda, city, capital of Angola. Located on the Atlantic coast of northern Angola, it is the country’s largest city and one of its busiest seaports. Founded in 1576 by Paulo Dias de Novais and initially settled by the Portuguese, Luanda became the administrative centre of the Portuguese colony of

Kingdom of Loango, former African state in the basin of the Kouilou and Niari rivers (now largely in southwestern Congo [Brazzaville]). Founded by the Vili people, (Bavili), probably before 1485, it was one of the oldest and largest kingdoms of the region. By 1600 it was importing ivory and slaves

linguistics: Borrowing: Languages borrow words freely from one another. Usually this happens when some new object or institution is developed for which the borrowing language has no word of its own. For example, the large number of words denoting financial institutions and operations borrowed from Italian…

Loasaceae: The genus Loasa, with about 100 species from Mexico to the Andes, has nettle-like stinging hairs that can result in discomfort for days; its oddly formed flowers have five pouchlike yellow petals covering united stamens and distinctive large coloured nectaries. The closely related Caiophora (or Cajophora), with…

Loasaceae, mostly tropical American plant family of 14 genera and 265 species of the dogwood order (Cornales), many with painfully stinging hairs but beautiful and often bizarre flowers in red, orange, yellow, or white. The plants are frequently twining and mostly herbaceous. The genus Loasa, with

tennis: Strategy and technique: …volley, and drive, include the lob, overhead smash, half volley, and drop shot. The lob, a soft high-arched loop, can be played either defensively, to try to recover from an awkward, vulnerable position where an attacking stroke is impossible, or offensively, to get the ball over the reach of an…

hyperbolic geometry, a non-Euclidean geometry that rejects the validity of Euclid’s fifth, the “parallel,” postulate. Simply stated, this Euclidean postulate is: through a point not on a given line there is exactly one line parallel to the given line. In hyperbolic geometry, through a point not on

Nikolay Ivanovich Lobachevsky was a Russian mathematician and founder of non-Euclidean geometry, which he developed independently of János Bolyai and Carl Gauss. (Lobachevsky’s first publication on this subject was in 1829, Bolyai’s in 1832; Gauss never published his ideas on non-Euclidean

Lobamba, densely populated rural area, central Swaziland, southern Africa. According to traditional Swazi customs, Lobamba is the residence of the Ndlovukazi (“She Elephant”; i.e., the Queen Mother) and is thereby the spiritual home of the Swazi nation; in addition, it is the legislative capital of

Aleksey Borisovich, Prince Lobanov-Rostovsky was a diplomat and statesman who, while serving as Russia’s foreign minister (1895–96), brought northern Manchuria into Russia’s sphere of influence. Having begun his diplomatic career in 1844, Lobanov held posts in Berlin and Paris before becoming