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  • Two Tactics of Social Democracy in the Democratic Revolution (work by Lenin)

    Marxism: Lenin: …Sotsial-Demokraty v demokraticheskoy revolyutsi (1905; Two Tactics of Social Democracy in the Democratic Revolution. He fiercely attacked the influence of Kantian philosophy on German and Russian Marxism in Materializm i empiriokrititsizm (1908; Materialism and Empirio-criticism (1908). In 1912 at the Prague Conference the Bolsheviks constituted themselves as an independent party.…

  • Two Thousand Guineas (horse race)

    Two Thousand Guineas, one of the English Classic horse races (with the Derby, the Saint Leger, the One Thousand Guineas, and the Oaks), first run in 1809. Run at Newmarket, Suffolk, the 1-mile event is open to three-year-old colts (carrying 126 pounds) and fillies (121 pounds). Winners of the Two

  • Two Thousand Seasons (work by Armah)

    Ayi Kwei Armah: In Two Thousand Seasons (1973) Armah borrowed language from the African dirge and praise song to produce a chronicle of the African past, which is portrayed as having a certain romantic perfection before being destroyed by Arab and European despoilers. The Healers (1979), Armah’s fifth novel,…

  • Two Thousand Words (Czech political document)

    Věra ?áslavská: …1968 ?áslavská signed the “Two Thousand Words,” a document that called for more rapid progress toward real democracy in Czechoslovakia. After Soviet tanks entered Prague in August of that year, ?áslavská, facing possible arrest for her political stance, fled to the mountain village of ?umperk. She was granted permission…

  • Two Towers, The (work by Tolkien)

    J.R.R. Tolkien: …The Fellowship of the Ring, The Two Towers, and The Return of the King. It was divided originally because of its bulk and to reduce the risk to its publisher should it fail to sell. In fact it proved immensely popular. On its publication in paperback in the United States…

  • Two Tracts on Government (work by Locke)

    John Locke: Oxford: …his first substantial political work, Two Tracts on Government (composed in 1660 but first published three centuries later, in 1967), Locke defended a very conservative position: in the interest of political stability, a government is justified in legislating on any matter of religion that is not directly relevant to the…

  • Two Trains Running (play by Wilson)

    African American literature: August Wilson: …family in the 1930s; and Two Trains Running (produced 1990), a look at the Black Power ideals of the 1960s from the perspective of the late 1980s. Fences and The Piano Lesson both won the Pulitzer Prize. Wilson’s later plays, Seven Guitars (produced 1995), Jitney! (produced in 1982 and revived…

  • Two Treatises of Government (work by Locke)

    John Locke: Oxford: …he would later expound in Two Treatises of Government (1689).

  • Two Trinities, The (painting by Murillo)

    Bartolomé Esteban Murillo: …church at Cádiz and the Two Trinities (popularly known as the “Holy Family”). The often mystical significance of his subjects is countered by the idealized reality of his figures based on familiar human archetypes, with natural gestures and tender, devout expressions, creating an effect of intimate rather than exalted religious…

  • two turnover test (political science)
  • Two Ways of Life, The (work by Rejlander)

    O.G. Rejlander: His most famous work, The Two Ways of Life (1857), was based on the background and arrangement of Raphael’s School of Athens (1509–11) and was created by combining more than 30 negatives. Shown in the Manchester Art Treasures Exhibition of 1857, the photograph was purchased by Queen Victoria as…

  • Two Weeks in Another Town (film by Minnelli [1962])

    Vincente Minnelli: Films of the 1960s and 1970s: Home from the Hill, Bells are Ringing, and On a Clear Day You Can See Forever: Two Weeks in Another Town (1962) came next; it was very loosely based on an Irwin Shaw novel about the travails of a movie crew filming on location in Rome. It starred Douglas as a former actor summoned by his onetime favorite director (Edward G.…

  • Two Women (film by De Sica [1960])

    Two Women, Italian film drama, released in 1961, that earned Sophia Loren an Academy Award for best actress—the first Oscar ever given for a performance in a foreign-language movie. Two Women—which was based on the novel by Alberto Moravia—is a tale of survival in war-torn Italy in the early 1940s.

  • Two Women (novel by Mulisch)

    Harry Mulisch: Twee vrouwen (1975; Two Women; filmed 1979) explored love between two women. Perhaps his most popular work is his novel De aanslag (1982; The Assault; filmed 1985), in which one family betrays another during the war. The reason for that betrayal is revealed to the only surviving member…

  • Two Women (novel by Moravia)

    Two Women, novel by Alberto Moravia, published in Italian in 1957 as La ciociara. Based partially on Moravia’s own experiences during World War II, the novel tells the story of Cesira, a strong-willed widow who is forced to flee Rome in 1943 with her 18-year-old daughter Rosetta. The two women

  • Two Worlds: First Meetings Between Maori and Europeans, 1642–1772 (work by Salmond)

    Dame Anne Salmond: In Two Worlds: First Meetings Between Maori and Europeans, 1642–1772 (1991), she detailed the first encounters between Polynesians and Europeans. Going against the grain of a common historical narrative, which cast indigenous peoples as the passive subjects of colonialism, Two Worlds depicted the Maori as equally…

  • Two Years Before the Mast (film by Farrow [1946])

    John Farrow: Films of the 1940s: …pair of period action films: Two Years Before the Mast (1946) cast Ladd as the son of a shipping magnate who is forced to work on one of his father’s vessels, and California (1947) starred Ray Milland as an unlikely wagon master, with Barbara Stanwyck at his side. In Easy…

  • Two Years Before the Mast (work by Dana)

    Richard Henry Dana: …to the bar, he published Two Years Before the Mast, a personal narrative presenting “the life of a common sailor at sea as it really is” and showing the abuses endured by his fellow sailors. The book was immediately popular, and its realistic descriptions made it an American classic. In…

  • Two Years Eight Months and Twenty-Eight Nights (novel by Rushdie)

    Salman Rushdie: Two Years Eight Months and Twenty-Eight Nights (2015) depicts the chaos ensuing from a rent in the fabric separating the world of humans from that of the Arabic mythological figures known as jinn. Reveling in folkloric allusion—the title references The Thousand and One Nights—the novel…

  • Two’s Company (novel by Middleton)

    Stanley Middleton: …A Serious Woman (1961) and Two’s Company (1963), both of which explore compelling sexual attraction as the sole basis for a relationship; and Holiday (1974; cowinner of a Booker Prize), which concerns remembered childhood summer vacations and a hiatus taken from a marriage. Middleton’s other novels include The Other Side…

  • two-barred crossbill (bird)

    crossbill: The spruce-loving white-winged crossbill (L. leucoptera) occurs throughout the colder regions of the Northern Hemisphere. It wanders widely, but when it finds a good crop of cones, it may nest there, even in midwinter. An isolated variety of the species lives in the pine forests of Hispaniola.…

  • two-bin system (business)

    operations research: Inventory control: The two-bin system (sometimes called the min-max system) involves the use of two bins, either physically or on paper. The first bin is intended for supplying current demand and the second for satisfying demand during the replenishment period. When the stock in the first bin is…

  • two-bloc system (French government)

    election: Plurality and majority systems: …some analysts have called a “two-bloc” system, in which the main parties of the left and the main parties of the right compete against each other in the first round of an election to be the representative of their respective ideological group and then ally with one another to maximize…

  • two-body problem (physics)

    celestial mechanics: The approximate nature of Kepler’s laws: Hence, this “gravitational two-body problem” has an exact solution that reproduces Kepler’s laws. If one or more additional bodies also interact with the original pair through their mutual gravitational interactions, no exact solution for the differential equations of motion of any of the bodies involved can be obtained.…

  • two-cardinal problem (logic and mathematics)

    metalogic: Satisfaction of a theory by a structure: finite and infinite models: …another direction, there are “two-cardinal” problems that arise from the possibilities of changing, from one model to another, not only the cardinality of the domain of the first model but also the cardinality of some chosen property (such as being a prime number). Various answers to these questions have…

  • two-cavity klystron (electronics)

    electron tube: Klystrons: …explained in terms of a two-cavity klystron amplifier.

  • two-centre potential (physics)

    nuclear fission: Nuclear models and nuclear fission: A two-centre potential may also be used to represent the nature of the forces at work in a fissioning nucleus. In such a model, the potential energy surfaces are represented by two overlapping spheres or spheroids. It is equivalent to a one-centre potential when there is…

  • two-clawed hunting spider (arachnid)

    Sac spider, (family Clubionidae), any member of a relatively common, widespread family of spiders (order Araneida) that range in body length from 3 to 15 mm (about 0.12 to 0.6 inch) and build silken tubes under stones, in leaves, or in grass. Chiracanthium inclusum, found throughout the United

  • two-compartment standard (nautical science)

    ship: Damage buoyancy and stability: A two-compartment standard is common for larger passenger-carrying ships—a measure that presumably protects the ship against a collision at the boundary between two compartments. The Titanic, the victim of the most famous sinking in the North Atlantic, was built to the two-compartment standard, but its collision…

  • two-dimensional echocardiography (medicine)

    human cardiovascular system: Noninvasive techniques: Real-time (cross-sectional or two-dimensional) echocardiography depicts cardiac shape and lateral movement not available in M-mode echocardiography by moving the ultrasonic beam very rapidly, and such recording may be displayed on film or videotape. New techniques allow measurement by ultrasonography of rates of flow and pressures,…

  • two-dimensional gel electrophoresis

    separation and purification: Field separations: Two-dimensional gel electrophoresis is one of the most powerful resolving methods now available.

  • two-dimensional planar chromatography

    chromatography: Development chromatography: This is termed two-dimensional planar chromatography.

  • two-eyed berry (plant)

    Partridgeberry, (Mitchella repens), North American plant of the madder family (Rubiaceae), growing in dry woods from southwestern Newfoundland to Minnesota and southward to Florida and Texas. It is evergreen, with nearly round, 18-millimetre (0.7-inch) leaves, often variegated with white lines; a

  • Two-Faced Woman (film by Cukor [1941])

    Ruth Gordon: Ehrlich’s Magic Bullet (1940); Two-Faced Woman (1941; Greta Garbo’s final film); Edge of Darkness (1942); and Action in the North Atlantic (1943), with Humphrey Bogart and Raymond Massey. She then returned to the stage and did not appear in another movie for 22 years.

  • two-factor theory (labour)

    Two-factor theory, theory of worker motivation, formulated by Frederick Herzberg, which holds that employee job satisfaction and job dissatisfaction are influenced by separate factors. For example, bad working conditions are likely to be a source of dissatisfaction, but excellent working conditions

  • two-field system (agriculture)

    Two-field system, basis of agricultural organization in Europe and the Middle East in early times. Arable land was divided into two fields or groups of fields; one group was planted to wheat, barley, or rye, while the other was allowed to lie fallow until the next planting season to recover its

  • two-handed dead lift (weightlifting)

    powerlifting: The two-handed dead lift, in which the lifter raises the weight from the floor to hip level in one movement, displays overall back and gripping power. Lifters are allowed three attempts in each lift at weights of their own choosing, and the highest poundage in each…

  • two-hinged truss (construction)

    construction: Steel long-span construction: Two-hinge (made of a single member hinged at each end) and three-hinge (made of two members hinged at each end and at the meeting point at the crown) trussed arches were widely used, the largest examples being two great airship hangars for the U.S. Navy…

  • two-horn sculpin (fish)

    Two-horned sculpin, any fish of the family Icelidae (order Scorpaeniformes). See

  • two-horned rhinoceros (mammal)

    Sumatran rhinoceros, (Dicerorhinus sumatrensis), one of three Asian species of rhinoceroses and the smallest living rhinoceros. Both females and males typically weigh less than 850 kg (1,870 pounds); they are 2.5 metres (8 feet) long and 1.5 metres (5 feet) high at the shoulder. Sumatran

  • two-horned sculpin (fish)

    Two-horned sculpin, any fish of the family Icelidae (order Scorpaeniformes). See

  • two-key cryptography (cryptology)

    Public-key cryptography, asymmetric form of cryptography in which the transmitter of a message and its recipient use different keys (codes), thereby eliminating the need for the sender to transmit the code and risk its interception. In 1976, in one of the most inspired insights in the history of

  • two-legged worm lizard (reptile)

    lizard: Annotated classification: Amphisbaenia Family Bipedidae (two-legged worm lizards) Worm lizards with front limbs that are molelike. 1 genus, Bipes, is known and contains 3 species. Restricted to western Mexico and Baja California. Family Amphisbaenidae (worm lizards) Limbless, wormlike lizards that are found through much of the tropical world but are…

  • two-lined spittlebug (insect)

    froghopper: The two-lined spittlebug (Prosapia bicincta) is one of the most common species in eastern North America. Adults are dark brown with two red-orange stripes and feed on grasses, weeds, and holly. Nymphs are yellow and are often found on grasses in late spring.

  • two-major-regional-contingency strategy (military)

    Two-theatre war, a defense-planning model used to estimate the size and composition of U.S. forces necessary for optimal military readiness at any given time. The two-theatre war model held that the United States should be capable of simultaneously fighting two major conflicts in different parts of

  • two-major-theater war (military)

    Two-theatre war, a defense-planning model used to estimate the size and composition of U.S. forces necessary for optimal military readiness at any given time. The two-theatre war model held that the United States should be capable of simultaneously fighting two major conflicts in different parts of

  • two-masted ship

    ship: Types of sails: …ship in the Mediterranean was two-masted, with the foremast larger and hung with a sail new to ordinary navigation at sea. This was the lateen sail, earlier known to the Egyptians and sailors of the eastern Mediterranean. The lateen sail (as shown in the figure) is triangular in shape and…

  • two-meson theory (physics)

    subatomic particle: The nuclear binding force: The two-meson theory proposed that Yukawa’s nuclear meson decays into the penetrating meson observed in the cosmic rays.

  • two-move restriction (checkers)

    checkers: In the two-move restriction, the first move of each side is chosen by lot from 47 playable combinations. The three-move, or American, restriction is an extension of the two-move to black’s second move, with about 300 prescribed openings. Eleven-man ballot is a less popular method, in which…

  • two-parent family (anthropology)

    Nuclear family, in sociology and anthropology, a group of people who are united by ties of partnership and parenthood and consisting of a pair of adults and their socially recognized children. Typically, but not always, the adults in a nuclear family are married. Although such couples are most

  • two-part form (music)

    Binary form, in music, the structural pattern of many songs and instrumental pieces, primarily from the 17th to the 19th century, characterized by two complementary, related sections of more or less equal duration that may be represented schematically as ab. In 18th-century compositions, including

  • two-party system (politics)

    Two-party system, political system in which the electorate gives its votes largely to only two major parties and in which one or the other party can win a majority in the legislature. The United States is the classic example of a nation with a two-party system. The contrasts between two-party and

  • two-photon resonance-ionization spectroscopy (physics)

    spectroscopy: Basic energy considerations: With certain pulsed lasers, the two-photon RIS process can be saturated so that one electron is removed from each atom of the selected type. Furthermore, ionization detectors can be used to sense a single electron or positive ion. Therefore, individual atoms can be counted. By taking advantage of tunable laser…

  • two-photon spectroscopy (science)

    spectroscopy: Techniques for obtaining Doppler-free spectra: An important example is two-photon spectroscopy, another form of spectroscopy that was made possible by the high intensities available with lasers. All these techniques rely on the relative Doppler shift of counterpropagating beams to identify the correct resonance frequency and have been used to measure spectra with extremely high…

  • two-place predicate (logic)

    formal logic: The predicate calculus: …“John”) and a dyadic or two-place predicate (“is a son of”), of which they are the arguments; and the proposition is thus of the form ?xy. Analogously, “… is between … and …” is a three-place predicate, requiring three arguments, and so on. In general, a predicate variable followed by…

  • two-plus-four talks (European history)

    20th-century international relations: From skepticism to reality: These “two plus four” talks were expected to be a slow, deliberative process.

  • two-point arbitrage

    arbitrage: …or more exchange centres (two-point arbitrage or multiple-point arbitrage). For example, assume that Country A’s sovereign is exchanging at two to the dollar in New York City, while Country B’s franc is valued at five to the dollar. Logically, Country A’s sovereign should exchange at two sovereigns to five…

  • two-pole strategy (warfare)

    strategy: Medieval strategy: …both types of strategy—overthrow and exhaustion. The Crusader states of the Middle East were gradually exhausted and overwhelmed by constant raiding warfare and the weight of numbers. On the other hand, one or two decisive battles, most notably the ruinous disaster at the Battle of ?a??īn (1187), doomed the Crusader…

  • two-process theory of attention (psychology)

    attention: Memory and habituation: …of a number of “two-process” theories of attention. One of the most influential was that advanced by the American psychologists Richard M. Shiffrin and Walter Schneider in 1977 on the basis of experiments involving visual search. Their theory of detection, search, and attention distinguishes between two modes of processing…

  • two-pronged bristletail (arthropod order)

    Dipluran, (order Diplura), any of a group of about 800 species of small primitive wingless insects, considered by some entomologists to have features similar to ancestral insects. Diplurans have two appendages, or cerci, extending backward from the last of their abdominal segments, for which they

  • two-revolution press (printing)

    printing: Cylinder presses: In the two-revolution press, the cylinder never stops revolving but is raised on its bearings as the bed moves back again in order not to touch the form. In its lowered position the cylinder’s cogwheel engages a low-toothed rack incorporated in the bed; in its raised position…

  • two-source hypothesis (religion)

    biblical literature: The two- and four-source hypotheses: The two-source hypothesis is predicated upon the following observations: Matthew and Luke used Mark, both for its narrative material as well as for the basic structural outline of chronology of Jesus’ life. Matthew and Luke use a second source, which is called Q (from German Quelle,…

  • two-spirit

    Berdache, early European designation for American Indians (in Canada called First Nations peoples) who did not conform to Western gender and sexual norms. The term held negative implications for a variety of sexual behavior, gender practices, and various physical sex characteristics. Since then, it

  • two-spot barb (fish)

    barb: Two-spot barb (B. ticto), 5–16 cm (2–6 inches) long; silvery with black spot near head and tail; dorsal fin of male reddish with black spots; no barbels.

  • two-stage cluster sampling (statistics)

    statistics: Sample survey methods: In two-stage cluster sampling, a simple random sample of clusters is selected and then a simple random sample is selected from the units in each sampled cluster. One of the primary applications of cluster sampling is called area sampling, where the clusters are counties, townships, city…

  • two-state solution (Israeli-Palestinian history)

    Two-state solution, proposed framework for resolving the Israeli-Palestinian conflict by establishing two states for two peoples: Israel for the Jewish people and Palestine for the Palestinian people. In 1993 the Israeli government and the Palestine Liberation Organization (PLO) agreed on a plan to

  • two-step (dance)

    Two-step, ballroom dance appearing in about 1890 in the United States. Its origins are unclear but may include the polka, galop, or waltz. The dance consists of sliding steps to the side in 24 time. It was one source of the fox-trot, which in about 1920 overtook it in popularity, and the term

  • two-step flow model of communication

    Two-step flow model of communication, theory of communication that proposes that interpersonal interaction has a far stronger effect on shaping public opinion than mass media outlets. The two-step flow model was formulated in 1948 by Paul Lazarsfeld, Bernard Berelson, and Hazel Gaudet in the book

  • two-striped thickknee (bird)

    thickknee: The double-striped thickknee (B. bistriatus) inhabits the American tropics. Others are the great stone curlew (Esacus recurvirostris), also called stone plover or reef thickknee, of coastal rivers of India; and the beach stone curlew (Orthorhamphus magnirostris) of Australia.

  • two-stroke cycle (engineering)

    gasoline engine: Two-stroke cycle: In the original two-stroke cycle (as developed in 1878), the compression and power stroke of the four-stroke cycle are carried out without the inlet and exhaust strokes, thus requiring only one revolution of the crankshaft to complete the cycle. The fresh fuel mixture…

  • two-theatre war (military)

    Two-theatre war, a defense-planning model used to estimate the size and composition of U.S. forces necessary for optimal military readiness at any given time. The two-theatre war model held that the United States should be capable of simultaneously fighting two major conflicts in different parts of

  • Two-thirds Decree (French history)

    France: The Directory: …the Convention added the “Two-thirds Decree” to the package, requiring for the sake of continuity that two-thirds of its deputies must sit by right in the new legislature regardless of voting in the départements. This outraged conservatives and royalists hoping to regain power legally, but their armed uprising in…

  • two-tier gold system (international money reserves)

    Two-tier gold system, arrangement set up to protect international monetary reserves from the pressure of higher gold prices; under a two-tier system, monetary gold used as reserves would sell at a fixed price, and gold used as an ordinary commodity would sell at a freely fluctuating

  • two-toed anteater (mammal)

    anteater: The silky anteater: Also known as the two-toed, pygmy, or dwarf anteater, the silky anteater (Cyclopes didactylus) is the smallest and least-known member of the family. The silky anteater is found from southern Mexico southward to Bolivia and Brazil. It is not rare but is difficult…

  • two-toed sloth (mammal)

    sloth: Two-toed sloths: Both species of two-toed sloth (family Megalonychidae), also called unaus, belong to the genus Choloepus. Linnaeus’s two-toed sloth (C. didactylus) lives in northern South America east of the Andes and south to the central Amazon basin. Hoffmann’s two-toed sloth (C. hoffmanni) is found…

  • Two-Tone Movement

    In several regional British cities, the distinct late 1970s combination of economic turmoil, unemployment benefits (effectively an arts subsidy), and art school punks resulted in a generation of eccentric talent. In Coventry, the southernmost centre of Britain’s Midlands engineering belt, the

  • two-valued logic

    formal logic: Nonstandard versions of PC: …system is often called the two-valued propositional calculus.) This idea has been challenged on various grounds. Following a suggestion made by Aristotle, some logicians have maintained that propositions about those events in the future that may or may not come to pass are neither true nor false but “neuter” in…

  • two-way channel capability (communications)

    cable television: …and more cable operators is two-way channel capability, which enables subscribers to communicate with programming facilities or information centres within the system. Using the cable connection, home viewers can, for example, participate in public-opinion polls or call up various kinds of written and graphic materials (e.g., citations from reference books,…

  • two-way radio (communications)

    Motorola, Inc.: Founding as Galvin Manufacturing: …company introduced a pair of two-way radio communications products for the police and military. The first was an AM-band police radio system adopted later that year in Bowling Green, Kentucky; the second was the Handie-Talkie, an AM-band, handheld device with a long antenna that ultimately was used by soldiers during…

  • two-wire circuit (electronics)

    telephone: From single-wire to two-wire circuits: …by the use of a two-wire, or “metallic,” circuit; the first demonstration of such a system occurred in 1881 on a telephone line between Providence, Rhode Island, and Boston.

  • twofold rotational symmetry (crystallography)

    quasicrystal: Microscopic images of quasicrystalline structures: There are also axes of twofold rotational symmetry passing through the edges and axes of threefold rotational symmetry passing through the vertices. This is also known as icosahedral symmetry because the icosahedron is the geometric dual of the pentagonal dodecahedron. At the centre of each face on an icosahedron, the…

  • Twombly, Cy (American artist)

    Cy Twombly, American painter, draftsman, and sculptor whose work reflects a lifelong consideration of the expressive possibilities of mark making. From 1948 to 1951 Twombly studied at the School of the Museum of Fine Arts in Boston, at Washington and Lee University in Lexington, Virginia, and at

  • Twombly, Edwin Parker, Jr. (American artist)

    Cy Twombly, American painter, draftsman, and sculptor whose work reflects a lifelong consideration of the expressive possibilities of mark making. From 1948 to 1951 Twombly studied at the School of the Museum of Fine Arts in Boston, at Washington and Lee University in Lexington, Virginia, and at

  • Tworkov, Jack (American artist)

    Jack Tworkov, Polish-born American painter, an exponent of Abstract Expressionism and founding member of the New York school, whose style was characterized by gestural brushwork. Tworkov immigrated to the United States in 1913. After receiving a degree in creative writing from Columbia University

  • Tworkovsky, Yakov (American artist)

    Jack Tworkov, Polish-born American painter, an exponent of Abstract Expressionism and founding member of the New York school, whose style was characterized by gestural brushwork. Tworkov immigrated to the United States in 1913. After receiving a degree in creative writing from Columbia University

  • Twort, Frederick William (British scientist)

    virology: …virology began when two bacteriologists, Frederick William Twort in 1915 and Félix d’Hérelle in 1917, independently discovered the existence of bacteriophages (viruses that infect bacteria).

  • TWS (Australian organization)

    the Greens: …the UTG joined with the Tasmanian Wilderness Society (TWS) to quickly mobilize opposition to a hydroelectric plant that was planned for the Gordon River below its confluence with the Franklin River. When the UTG dissolved in 1979, TWS leader Bob Brown launched a nationwide “No Dams” campaign against the initiative,…

  • TWSE (Taiwanese company)

    Taiwan: Finance: The Taiwan Stock Exchange (TWSE) opened in 1962 and has flourished since then as a place for private savings and investments. Originally the TWSE traded almost exclusively in stocks, but it subsequently began to also offer bonds and other forms of investments. The TWSE is among…

  • TWT (electronics)

    electron tube: Traveling-wave tubes: These are generally used to amplify microwave signals over broad bandwidths. The main elements of a traveling-wave tube (TWT) are (1) an electron gun, (2) a focusing structure that keeps the electrons in a linear path, (3) an RF circuit that causes RF…

  • TWV (chemistry)

    chemical analysis: Triangular wave voltammetry: Triangular wave voltammetry (TWV) is a method in which the potential is linearly scanned to a value past the potential at which an electrochemical reaction occurs and is then immediately scanned back to its original potential. A triangular wave voltammogram usually has…

  • TWX (American telecommunication system)

    telegraph: Printing telegraphs: In 1932 AT&T inaugurated the Teletypewriter Exchange Service (TWX), a switched teleprinter network. Switching was accomplished manually until it was automated after World War II. In Europe a similar service called Telex was inaugurated in the early 1930s and was partially automated in Germany before World War II. In 1962…

  • Twyfelfontein (historic site, Namibia)

    Namibia: Independence before the conquest: Rock paintings and engravings at Twyfelfontein, in northwest Namibia, have shed light on the early San hunter-gatherers who once inhabited the area. Stone artifacts, human figures, and animals such as giraffes, rhinoceroses, and zebras are depicted. Twyfelfontein was designated a UNESCO World Heritage site in 2007.

  • Twyford, Thomas (British inventor)

    construction: Improvements in building services: …in England during the 1870s Thomas Twyford developed the first large one-piece ceramic lavatories as well as the ceramic washdown water closet. At first these ceramic fixtures were very expensive, but their prices declined until they became standard, and their forms remain largely unchanged today. The bathtub proved to be…

  • Twyla Tharp Dance (dance company)

    United States: Audiences: …dance troupes and museums (the Twyla Tharp dance company, despite its worldwide reputation, for instance, and a popular orientation that included several successful seasons on Broadway, was compelled to survive only by being absorbed into American Ballet Theatre) rests on hard and fixed facts about the economics of the arts,…

  • Twyman, Jack (American basketball player)

    Jack Twyman, American professional basketball player who was a six-time National Basketball Association (NBA) All-Star but is perhaps best remembered for the years of support he provided to teammate Maurice Stokes, who was incapacitated by an on-court injury. Twyman went from being an awkward

  • Twyman, John Kennedy (American basketball player)

    Jack Twyman, American professional basketball player who was a six-time National Basketball Association (NBA) All-Star but is perhaps best remembered for the years of support he provided to teammate Maurice Stokes, who was incapacitated by an on-court injury. Twyman went from being an awkward

  • Twyman-Green interferometer (science)

    optical interferometer: The Twyman-Green interferometer, an adaptation of the Michelson instrument introduced in 1916 by the English electrical engineer Frank Twyman and the English chemist Arthur Green, is used for testing lenses and prisms. It uses a point source of monochromatic light at the focus of a quality…

  • Twyman-Stokes Teammate of the Year Award (sports award)

    Jack Twyman: …2013 the NBA created the Twyman-Stokes Teammate of the Year Award, which was to be given annually to the league’s “ideal teammate.”

  • Twysden, Sir Roger (English historian)

    Sir Roger Twysden, English political pamphleteer and constitutional historian who is noted for his work on the development of English law and constitutional government. Twysden was educated at Emmanuel College, Cambridge. He was knighted in 1620 and served in Parliament in 1625 and 1626. At the

  • TX-2 (computer)

    Sketchpad: …that would run on the TX-2, one of the first programmable computers, at MIT’s Lincoln Laboratory. The TX-2 had twice the memory capacity of the largest commercial machines and impressive programmable capabilities. The computer possessed 320 KB (kilobytes) of memory and powered a 23-cm (9-inch) cathode-ray tube (CRT) display. Sketchpad…

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