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  • Tondou Massif (plateau region, Central African Republic)

    Tondou Massif, plateau region in the eastern Central African Republic, near the border with South Sudan. Most of the plateau ranges between 2,600 and 3,300 feet (800 and 1,000 metres) in elevation; it reaches 3,461 feet (1,055 metres) at Mount Ngouo in the northeast. The Kotto River, a tributary of

  • tone (colour)

    painting: Colour: …variables or attributes of hue, tone, and intensity. Red, yellow, and blue are the basic hues from which all others on the chromatic scale can be made by mixtures. These three opaque hues are the subtractive pigment primaries and should not be confused with the behaviour of the additive triads…

  • tone (sound)

    Tone, in acoustics, sound that can be recognized by its regularity of vibration. A simple tone has only one frequency, although its intensity may vary. A complex tone consists of two or more simple tones, called overtones. The tone of lowest frequency is called the fundamental; the others,

  • tone (speech)

    Tone, in linguistics, a variation in the pitch of the voice while speaking. The word tone is usually applied to those languages (called tone languages) in which pitch serves to help distinguish words and grammatical categories—i.e., in which pitch characteristics are used to differentiate one word

  • tone colour (sound)

    Timbre, quality of auditory sensations produced by the tone of a sound wave. The timbre of a sound depends on its wave form, which varies with the number of overtones, or harmonics, that are present, their frequencies, and their relative intensities. The illustration shows the wave form that

  • tone language (language)

    African music: Musical instruments: …languages (except Swahili) are “tone languages,” in the sense that the meaning of words depends on the tone or pitch in which they are said. Consequently, instrumental music—or even natural sounds such as birdsong—often imitates or suggests meaningful phrases of the spoken language. Sometimes this is intentional and sometimes…

  • tone poem (music)

    Symphonic poem, musical composition for orchestra inspired by an extra-musical idea, story, or “program,” to which the title typically refers or alludes. The characteristic single-movement symphonic poem evolved from the concert-overture, an overture not attached to an opera or play yet s

  • Tone Psychology (work by Stumpf)

    Carl Stumpf: …he began experiments for his Tonpsychologie, 2 vol. (1883–90; “Tone Psychology”), completed in the course of professorships at the Universities of Prague (1879), Halle (1884), and Munich (1889). This work was important not only for reporting the results of his experiments but also for revising concepts of psychophysics, which attempts…

  • Tone River (river, Japan)

    Tone River, major river of the Kantō Plain, Honshu, Japan. It rises in the volcanic area of northwestern Kantō chihō (region), about 35 miles (56 km) north of Maebashi in Gumma ken (prefecture). The river flows for 200 miles (320 km) south and southeast through the centre of the Kantō Plain to

  • tone system (music)

    African music: Tone systems and multipart patterns: Tone systems and multipart patterns have a functional interrelationship in African music. In other words, the kind of multipart pattern occurring in singing or instrumental music is conditional on the type of tone system, and vice versa.

  • Tone, Franchot (American actor)

    Joan Crawford: (1929–33), Franchot Tone (1935–39), and Phillip Terry (1942–46) and to Alfred Steele (1955–59), chairman of the Pepsi-Cola Company. After his death in 1959 she became a director of the company and in that role hired her friend Dorothy Arzner to film several Pepsi commercials. Crawford’s adopted…

  • Tone, Theobald Wolfe (Irish leader)

    Wolfe Tone, Irish republican and rebel who sought to overthrow English rule in Ireland and who led a French military force to Ireland during the insurrection of 1798. The son of a coach maker, Tone studied law and was called to the Irish bar (1789) but soon gave up his practice. In October 1791 he

  • Tone, Wolfe (Irish leader)

    Wolfe Tone, Irish republican and rebel who sought to overthrow English rule in Ireland and who led a French military force to Ireland during the insurrection of 1798. The son of a coach maker, Tone studied law and was called to the Irish bar (1789) but soon gave up his practice. In October 1791 he

  • tone-cluster (music)

    harmony: Avant-garde conceptions of harmony: Similarly, the “tone-cluster” writing of another American innovator, Henry Cowell, whereby a pianist’s forearm sounds every note it can depress at once, can hardly be analyzed as functional harmony in any sense.

  • Tone-gawa (river, Japan)

    Tone River, major river of the Kantō Plain, Honshu, Japan. It rises in the volcanic area of northwestern Kantō chihō (region), about 35 miles (56 km) north of Maebashi in Gumma ken (prefecture). The river flows for 200 miles (320 km) south and southeast through the centre of the Kantō Plain to

  • tone-row (music composition)

    12-tone music, large body of music, written roughly since World War I, that uses the so-called 12-tone method or technique of composition. The Austrian-born composer Arnold Schoenberg is credited with the invention of this technique, although other composers (e.g., the American composer Charles

  • Tonegawa Susumu (Japanese biologist)

    Tonegawa Susumu, Japanese molecular biologist who was awarded the Nobel Prize for Physiology or Medicine in 1987 for his discovery of the genetic mechanisms underlying the great diversity of antibodies produced by the vertebrate immune system. Tonegawa earned a B.S. degree from Kyōto University in

  • Tong River (river, China)

    Fuchun River, river flowing through Zhejiang province, southeastern China. The lower course and estuary, which discharge at Hangzhou into Hangzhou Bay, are called the Qiantang River. Above Hangzhou, as far as Tonglu, it is called the Fuchun River, and the section above Tonglu is known as the Tong

  • Tong Sang, Gaston (president of French Polynesia)

    French Polynesia: History: …several politicians—including Temaru, Flosse, and Gaston Tong Sang, who served multiple times each—representing different visions of French Polynesia’s future in relation to France.

  • tong war (United States history)

    Tong war, any of several feuds carried on in U.S. cities (e.g., San Francisco and Los Angeles) between gangs of Chinese immigrants or their descendants. These gang wars spanned a 70-year period beginning in the 1850s and continuing until the 1920s. The term tong, meaning a hall, or meeting place,

  • Tong Yuanming (Chinese chess player)

    Hou Yifan: She began studying chess under Tong Yuanming, an International Master and a member of China’s national chess team. She became the youngest member of that team in 2003 and won her first international tournament in the girl’s under-10 division at the Fédération Internationale des échecs (FIDE) World Youth Chess Championship,…

  • Tonga (African people)

    Tonga, Bantu-speaking people who inhabit the southern portion of Zambia and neighbouring areas of northern Zimbabwe and Botswana. Numbering more than one million in the early 21st century, the Tonga are concentrated along the Zambezi Escarpment and along the shores of Lake Kariba. They are settled

  • Tonga

    Tonga, country in the southwestern Pacific Ocean. It consists of some 170 islands divided into three main island groups: Tongatapu in the south, Ha?apai in the centre, and Vava?u in the north. Isolated islands include Niuafo?ou, Niuatoputapu, and Tafahi (together known as the Niuatoputapu, or

  • Tonga Trench (submarine trench, South Pacific Ocean)

    Tonga Trench, submarine trench in the floor of the South Pacific Ocean, about 850 miles (1,375 km) in length, forming the eastern boundary of the Tonga Ridge; the two together constitute the northern half of the Tonga-Kermadec Arc, a structural feature of the Pacific floor completed to the south

  • Tonga, flag of

    national flag consisting of a red field (background) with a white canton bearing a red cross. The flag’s width-to-length ratio is 1 to 2.When the Western concept of flags began to take hold in the Pacific region in the late 18th century, the independent kingdoms there frequently adopted red and

  • Tonga, Kingdom of

    Tonga, country in the southwestern Pacific Ocean. It consists of some 170 islands divided into three main island groups: Tongatapu in the south, Ha?apai in the centre, and Vava?u in the north. Isolated islands include Niuafo?ou, Niuatoputapu, and Tafahi (together known as the Niuatoputapu, or

  • Tongan language

    Austronesian languages: Major languages: languages include Fijian, Samoan, and Tongan.

  • Tongareva (atoll, Cook Islands, Pacific Ocean)

    Penrhyn Atoll, most northerly of the Cook Islands, a self-governing state in free association with New Zealand in the South Pacific Ocean. A coral atoll, it has a 40-mile (64-km) reef that surrounds a lagoon of 108 square miles (280 square km). Penrhyn was inhabited by Polynesians at the time of

  • Tongariro National Park (national park, New Zealand)

    North Island: … (9,176 feet [2,797 metres]) within Tongariro National Park (designated a UNESCO World Heritage site in 1990). Rainfall, heaviest in the winter months, tends to be more evenly distributed than it is on South Island. North Island has the great majority of the national population and is gaining an increasingly larger…

  • Tongariro, Mount (volcano, New Zealand)

    Mount Ruapehu: … (7,503 feet [2,287 m]) and Tongariro (6,453 feet [1,967 m]). These mountains form the centre of one of New Zealand’s major ski resorts. Ruapehu was first climbed to its highest point by J. Park, C. Dalin, and W.H. Dunnage in 1886.

  • Tongass National Forest (forest region, Alaska, United States)

    Tongass National Forest, forest region and wilderness area in southeastern Alaska, U.S. It was established in 1907 by an executive order issued by Pres. Theodore Roosevelt (formal legislation declaring it a national forest was signed into law in 1909). Tongass National Forest covers most of the

  • Tongataboo Group (islands, Tonga)

    Tongatapu Group, southernmost island cluster of Tonga, in the South Pacific Ocean, about 1,400 miles (2,300 km) north-northeast of Auckland, N.Z. Its administrative headquarters is at Nuku?alofa, the national capital, on the northern coast of Tongatapu Island. Tongatapu Island, the largest island

  • Tongatapu Group (islands, Tonga)

    Tongatapu Group, southernmost island cluster of Tonga, in the South Pacific Ocean, about 1,400 miles (2,300 km) north-northeast of Auckland, N.Z. Its administrative headquarters is at Nuku?alofa, the national capital, on the northern coast of Tongatapu Island. Tongatapu Island, the largest island

  • Tongatapu Island (island, Tonga)

    Tonga: Relief: A protective reef surrounds Tongatapu Island; many islands in the Vava?u Group lack such protection and are shrinking.

  • Tongbai Mountains (mountains, China)

    Dabie Mountains: …which is properly called the Tongbai Mountains. The ranges together are sometimes known in the West as the Huaiyang Mountains.

  • Tongcheng (China)

    Tongcheng, city, southwestern Anhui sheng (province), eastern China. It stands on the edge of the Yangtze River (Chang Jiang) floodplain, the area to the south being a maze of lakes, the largest of which is Lake Caizi. It was founded as a county under the Sui dynasty (581–618 ce) and received the

  • Tongcheng school (Chinese literary school)

    Tongcheng: …became the focus of the Tongcheng school, one of the chief literary schools that flourished during the Qing period (1644–1911/12). The school advocated the philosophy of the Neo-Confucians, who had flourished in Song times (960–1279), combining it with emphasis upon rigorous textual scholarship and the use of simple and unadorned…

  • Tongchuan (China)

    Shaanxi: Resources and power: …modern mines are those at Tongchuan, on the northern slope of the Wei valley, and at Shenfu, near Shenmu and Fugu in the northern part of the province. There are minor coal and oil-shale deposits in the Han basin in the south, where there are also iron-ore deposits. In the…

  • Tongdaemun Market (market, Seoul, South Korea)

    Seoul: Finance and other services: …shopping areas are the extensive Tongdaemun Market and the smaller Namdaemun Market, located near the downtown of the North City. Comprising numerous individually owned shops, these markets serve not only Seoul but the entire country. There are also large department stores and shopping centres in Kangnam, the downtown South City…

  • Tongdian (work compiled by Du Yu)

    encyclopaedia: China: …more important book was the Tongdian (“Comprehensive Statutes”) compiled by Du Yu (735–812), a writer on government and economics. Completed about 801, it contained nine sections: economics, examinations and degrees, government, rites and ceremonies, music, the army, law, political geography, national defense. In 1273 it was supplemented by Ma Duanlin’s…

  • Tonge, Israel (English conspirator)

    Titus Oates: …new acquaintance, the fanatical anti-Jesuit Israel Tonge, urged him to profit by betraying Catholics to the government. Oates, therefore, set out to gather information about them and their activities. He joined the Roman Catholic church in March 1677, but before long he was expelled from seminaries at Valladolid in Spain…

  • Tongeren (Belgium)

    Tongeren, municipality, Flanders Region, northeastern Belgium. It lies along the Geer (Jaar) River, northwest of Liège. Important in Roman times as Aduatuca Tungrorum, capital of the Germanic Tungri tribe, it was the centre of a revolt against Rome in 54 bc. Tongeren is the oldest city in Belgium

  • Tonggan (people)

    Hui, an official nationality of China, composed of nearly 10 million people. The Hui are Chinese Muslims (i.e., neither Turkic nor Mongolian) who have intermingled with the Han Chinese throughout China but are relatively concentrated in western China—in the provinces or autonomous regions of

  • tonggu (bronze drum)

    Chinese music: Classification of instruments: …large, so-called bronze drum (tonggu), which is of special interest because of its widespread archaeological distribution throughout Southeast Asia. The sounds of the drum are also intriguing, as are the designs inscribed on its bronze head and the frog figurines that often grace the head’s rim. Han dynasty military…

  • Tongguan (China)

    Tongguan, town, eastern Shaanxi sheng (province), north-central China. It is situated on the south bank of the Huang He (Yellow River), just below its confluence with the Wei River where the Huang bends to the east and opposite the town of Fenglingdu in Shanxi province. The town is located in an

  • Tonghae (sea, Pacific Ocean)

    Sea of Japan, marginal sea of the western Pacific Ocean. It is bounded by Japan and Sakhalin Island to the east and by Russia and Korea on the Asian mainland to the west. Its area is 377,600 square miles (978,000 square km). It has a mean depth of 5,748 feet (1,752 metres) and a maximum depth of

  • Tonghak (Korean religion)

    Ch’?ndogyo, (Korean: “Religion of the Heavenly Way”, ) (“Eastern Learning”), indigenous Korean religion that combines elements of Confucianism, Buddhism, Taoism, shamanism, and Roman Catholicism. There is no concept of eternal reward in Ch’?ndogyo, because its vision is limited to bringing

  • Tonghak Uprising (Korean history)

    Tonghak Uprising, (1894) Korean peasant rebellion that sparked the first Sino-Japanese War (1894–95). Despite being persecuted for it, impoverished peasants turned increasingly to Tonghak (“Eastern Learning”; see Ch’?ndogyo), a syncretic, nationalistic religion that opposed Western culture and

  • Tonghua (China)

    Tonghua, city, southwestern Jilin sheng (province), northeastern China. It is situated in the valley of the Hun River in the densely forested Changbai Mountains—an area well known from early times for the manufacture of various forest products and for ginseng (a medicinal preparation made from an

  • Tonghui Canal (canal, China)

    Beijing: The early empires: …time that a waterway, the Tonghui Canal, was dug and connected to the Grand Canal, so that boats transporting tribute rice from the provinces south of the Yangtze could sail into one of the new lakes inside the city. Dadu, which had magnificent imperial palaces and treasures drawn from every…

  • Tongic languages

    Austronesian languages: Polynesian languages: …are divided into two branches, Tongic (Tongan and Niue) and Nuclear Polynesian (the rest). Nuclear Polynesian in turn contains Samoic-Outlier and Eastern Polynesian. Maori and Hawaiian, two Eastern Polynesian languages that are separated by some 5,000 miles of sea, appear to be about as closely related as Dutch and German.…

  • Tongjian gangmu (work by Zhu Xi)

    Zhu Xi: Life: …resulting work, known as the Tongjian gangmu (“Outline and Digest of the General Mirror”), basically completed in 1172, was not only widely read throughout eastern Asia but also served as the basis for the first comprehensive history of China published in Europe, J.-A.-M. Moyriac de Mailla’s Histoire générale de la…

  • Tongka (island, Thailand)

    Phuket: island, southern Thailand. The island lies in the Andaman Sea, off the west coast of peninsular Thailand. Phuket city, located in the southeastern portion of the island, is a major port and commercial centre. Its harbour exports tin, rubber, charcoal, lumber, and fish products south…

  • Tongking (colonial region, Vietnam)

    Tonkin, northern Vietnam during the French colonial period. The term Tonkin was never officially used by the Vietnamese to describe their country. Tonkin was centred on the densely populated and intensively cultivated Red River delta. It lay north of the Ma River, Ninh Binh being its southernmost m

  • Tongliao (China)

    Tongliao, city, eastern Inner Mongolia Autonomous Region, northeastern China. It is situated on the east bank of the Xiliao River on the western edge of the Northeast (Manchurian) Plain. Tongliao was originally the centre of the Barin tala horse pastures, which were established in the 17th century

  • Tongling (China)

    Tongling, city and industrial centre, southern Anhui sheng (province), eastern China. It is located on the southeast bank of the Yangtze River (Chang Jiang) between Anqing and Wuhu. Tongling grew into an industrial city of consequence only in the second half of the 20th century, but it has been a

  • Tongmenghui (Chinese political party)

    Nationalist Party, political party that governed all or part of mainland China from 1928 to 1949 and subsequently ruled Taiwan under Chiang Kai-shek and his successors for most of the time since then. Originally a revolutionary league working for the overthrow of the Chinese monarchy, the

  • Tongnian wangshi (film by Hou Hsiao-hsien [1985])

    Hou Hsiao-hsien: …semiautobiographical film Tongnian wangshi (1985; A Time to Live, a Time to Die) is the coming-of-age story of a young man raised in Taiwan under circumstances similar to Hou’s own. Hou also found his true voice in making films set against the backdrop of Taiwanese history, such as Lianlian fengchen…

  • Tongnip Hy?phoe (Korean political organization)

    Korea: The international power struggle and Korea’s resistance: …a political organization called the Independence Club (Tongnip Hy?phoe). He also published a daily newspaper named Tongnip sinmun (“The Independent”) as a medium for awakening the populace to the importance of sovereignty and civil rights. On the urging of the Tongnip Hy?phoe, the king returned to his palace and declared…

  • tongp’y?nje (Korean music)

    p'ansori: Styles and schools of performance: …be grouped into three categories: tongp’y?nje (“east-side singing school”), s?p’y?nje (“west-side singing school”), and chunggoje (“middle-high singing school”). Tongp’y?nje is associated with the eastern Ch?lla region (in southwestern South Korea) and particularly with the singers Song H?ngnok, Chong Ch’unp’ung, and Kim Sejong. Hallmarks of the style include a deep controlled…

  • Tongpu trunk line (railway, China)

    Shanxi: Transportation: The longest of these, the Tongpu trunk line, runs from Datong to Fenglingdu, in the southwestern corner of the province. Other trunk lines pass through the province, notably the line from Beijing to Baotou, and additional branchlines connect the main lines with more recently opened industrial and mining sites. Major…

  • Tongres (Belgium)

    Tongeren, municipality, Flanders Region, northeastern Belgium. It lies along the Geer (Jaar) River, northwest of Liège. Important in Roman times as Aduatuca Tungrorum, capital of the Germanic Tungri tribe, it was the centre of a revolt against Rome in 54 bc. Tongeren is the oldest city in Belgium

  • tongs (tool)

    hand tool: Tongs, pincers, and pliers: Tongs, pincers, tweezers, and pliers have the common task of holding or gripping objects so that they may be handled more easily. The early use of fire created a new problem, that of handling hot coals. Two sticks probably served as…

  • Tongsa (Bhutan)

    Tongsa, town, fortress, and monastery, central Bhutan. It lies in the Himalayas on the Tongsa (or Mangde) River, about 5,500 feet (1,700 m) above sea level. It was the headquarters of the first hereditary maharaja of Bhutan and the historic seat of power over central and eastern Bhutan. The dzong

  • Tongsamdong (archaeological site, South Korea)

    origins of agriculture: Korea: …bp were discovered at the Tongsamdong site, near Pusan in southern South Korea. By 4000 bp rice appears to have been introduced from China.

  • Tongshan (China)

    Xuzhou, city, northwestern Jiangsu sheng (province), eastern China. It is located in a gap in the southern portion of the Shandong Hills that constitutes a southwestern extension of the North China Plain. Through this gap flows the Feihuang River (in a former riverbed of the Huang He [Yellow

  • Tongshu (work by Zhou Dunyi)

    Zhou Dunyi: In the longer treatise entitled Tongshu (“Explanatory Text”), Zhou’s restatement and reinterpretation of Confucian doctrines laid the basis for the ethics of later Neo-Confucianism. According to Zhou, the sage, or superior man, reacts to external phenomena according to the principles of propriety, humanity, righteousness, wisdom, faithfulness, and tranquillity. Zhou viewed…

  • tongue (anatomy)

    Tongue, in most vertebrates, an organ, capable of various muscular movements, located on the floor of the mouth. In some animals (e.g., frogs) it is elongated and adapted to capturing insect prey. The tongues of certain reptiles function primarily as sensory organs, whereas cats and some other

  • Tongué (Guinea)

    Tougué, town, north-central Guinea, western Africa, on the Fouta Djallon plateau. It is a trading centre (rice, millet, oranges, cattle, and goats) among the Fulani (Peul) people in a savanna region. Bauxite deposits have been discovered south of the town. Pop. (latest est.)

  • tongue loss (pathology)

    speech disorder: Loss of tongue: …loss of the tongue (true aglossia) from injury or surgery is often amazingly well compensated. Patients can learn to use residual portions of a tongue stump as well as other oral structures to substitute for the missing tongue; indeed, some persons without a tongue have relearned to speak so well…

  • tongue orchid (plant)

    Serapias: … is commonly known as the tongue orchid. It has a reddish lip, lance-shaped leaves, and a stem up to 30 cm (12 inches) long. The heart-flowered serapias (S. cordigera) has purple flowers with blackish purple lips that often have a tonguelike lobe. S. stenopetala features pale yellow flowers and is…

  • Tongue River (river, United States)

    Tongue River, river rising on the eastern slopes of the Bighorn Mountains just west of Sheridan, Wyo., U.S., and flowing northeastward for 246 miles (396 km) to join the Yellowstone River at Miles City, Mont. From elevations of 8,000–10,000 feet (2,400–3,000 m), it drops to low, rugged mountains

  • tongue sole (fish family)

    Tonguefish, any of the small marine flatfishes of the family Cynoglossidae, found in the tropics, especially in Asia. Tonguefish are flattened, drop-shaped flatfish with small eyes, both on the left side of the head, and with long dorsal and anal fins that join with the tail fin. Most tonguefish

  • tongue twister (speech)

    Tongue twister, word or group of words made difficult to articulate by a close sequence of similar consonantal sounds. Tongue twisters are often passed on for generations, becoming a rich part of folklore. Two widely known English-language twisters are “She sells sea shells beside the seashore”

  • tongue-tie (physiology)

    Tongue-tie, congenital shortening of the flap of mucous membrane (frenum) beneath the tongue, a condition that sometimes interferes with protrusion of the tongue. The name comes from the belief, of folk origin, that the anomaly is the cause of speaking or feeding difficulties. Medical studies s

  • tonguefish (fish family)

    Tonguefish, any of the small marine flatfishes of the family Cynoglossidae, found in the tropics, especially in Asia. Tonguefish are flattened, drop-shaped flatfish with small eyes, both on the left side of the head, and with long dorsal and anal fins that join with the tail fin. Most tonguefish

  • tonguing (music)

    instrumentation: Wind techniques: Flutter tonguing (produced by a rapid rolling movement of the tongue) is possible on most wind instruments; so are many other tonguing techniques that affect the quality of sound in orchestration.

  • Tongva (people)

    Gabrielino, any of two, or possibly three, dialectally and culturally related North American Indian groups who spoke a language of Uto-Aztecan stock and lived in the lowlands, along the seacoast, and on islands in southern California at the time of Spanish colonization. The Gabrielino proper

  • Tongwen suanzhi (work by Clavius)

    Li Zhizao: …Ricci translated his arithmetic primer Epitome arithmeticae practicae (1585; “Selected Arithmetic Methods”) as Tongwen suanzhi (1614). This book systematically introduced European-style mathematical notation, while Li included complementary elements from traditional Chinese mathematics. Li also wrote a short treatise on geometry dictated by Ricci. Together with the Portuguese Jesuit Francisco Furtado…

  • Tongwenguan (Chinese school)

    Tongwenguan, (Chinese: “Interpreters College”) first institution in China for the study of Western thought and society. The Tongwenguan was originally established in 1862 to teach Western languages and thereby free Chinese diplomats from reliance on foreign interpreters. In 1866 the study of

  • Tongyeong (South Korea)

    T’ongy?ng, city and port, South Ky?ngsang (Gyeongsang) do (province), southeastern South Korea. The city was created in 1995 when Ch’ungmu city was combined with T’ongy?ng county. Until it was made a municipality in 1955, Ch’ungmu was called T’ongy?ng, deriving its name from T’ongjey?ng, which in

  • Tongzhi (work by Zheng Qiao)

    Zheng Qiao: He wrote the Tongzhi (“General Treatises”), a famous institutional history of China from its beginnings through the Tang dynasty (618–907). In this work he discussed subjects such as philology, phonetics, and the development of families and clans, none of which had been systematically explored before. Zheng’s method and…

  • Tongzhi (emperor of Qing dynasty)

    Tongzhi, reign name (niaohao) of the eighth emperor (reigned 1861–1874/75) of the Qing dynasty (1644–1911/12), during whose reign occurred a short revitalization of the beleaguered Qing government, known as the Tongzhi Restoration. Ascending the throne at the age of five (six by Chinese reckoning),

  • Toni Morrison: The Pieces I Am (film by Greenfield-Sanders [2019])

    Toni Morrison: Toni Morrison: The Pieces I Am (2019) is a documentary about her life and career.

  • Tonian Period (geochronology)

    Tonian Period, earliest of the three periods of the Neoproterozoic Era, extending from 1 billion to approximately 720 million years ago. It immediately followed the Stenian Period of the Mesoproterozoic Era (which lasted from 1.2 billion to 1 billion years ago) and was succeeded by the Cryogenian

  • tonic (music)

    Tonic, in music, the first note (degree) of any diatonic (e.g., major or minor) scale. It is the most important degree of the scale, serving as the focus for both melody and harmony. The term tonic may also refer to the tonic triad, the chord built in thirds from the tonic note (as C–E–G in C

  • tonic activity (physiology)

    nervous system disease: Muscle tone: When the physician flexes or extends the joints in a normal, relaxed limb, a certain resistance, known as tone, is detected. This resistance decreases whenever the reflex arc is damaged (usually at the level of the peripheral motor or sensory nerve), but it…

  • tonic motion (scientific theory)

    Georg Ernst Stahl: Teachings in medicine: …place to what he called tonic motion (“motus tonicus”), a contractive and relaxative movement of body parts or tissues that played a key role in metabolism—although, as always, he saw anima as the agent that directed the motion. The participation of anima in physiology and pathology thus made the living…

  • tonic sol-fa (music)

    solmization: …the most prominent being tonic sol-fa, developed about 1850 in England by John Curwen. Tonic sol-fa emphasizes the relation of the notes to one another and to the tonic, or key note (do in major scales, la in minor scales). If the key changes, do (or la) shifts to a…

  • tonic solfa (music)

    solmization: …the most prominent being tonic sol-fa, developed about 1850 in England by John Curwen. Tonic sol-fa emphasizes the relation of the notes to one another and to the tonic, or key note (do in major scales, la in minor scales). If the key changes, do (or la) shifts to a…

  • tonic-clonic (pathology)

    epilepsy: Generalized-onset seizures: …to by the older term grand mal, are commonly known as convulsions. A person undergoing a convulsion loses consciousness and falls to the ground. The fall is sometimes preceded by a shrill scream caused by forcible expiration of air as the respiratory and laryngeal muscles suddenly contract. After the fall,…

  • Tonight at Eight-thirty (plays by Coward)

    No?l Coward: Other successes included Tonight at Eight-thirty (1936), a group of one-act plays performed by Coward and Gertrude Lawrence, with whom he often played. He rewrote one of the short plays, Still Life, as the film Brief Encounter (1946). Present Laughter (1939) and Blithe Spirit (1941; filmed 1945; musical…

  • Tonight Show Starring Jimmy Fallon, The (American television program)

    The Tonight Show, long-running American late-night television talk show. Airing since 1954 on the National Broadcasting Company (NBC) network, it is the standard against which others of its genre are judged. The show has won multiple Emmy Awards. Except for a brief (and unpopular) switch to a

  • Tonight Show Starring Johnny Carson, The (American television program)

    The Tonight Show, long-running American late-night television talk show. Airing since 1954 on the National Broadcasting Company (NBC) network, it is the standard against which others of its genre are judged. The show has won multiple Emmy Awards. Except for a brief (and unpopular) switch to a

  • Tonight Show, The (American television program)

    The Tonight Show, long-running American late-night television talk show. Airing since 1954 on the National Broadcasting Company (NBC) network, it is the standard against which others of its genre are judged. The show has won multiple Emmy Awards. Except for a brief (and unpopular) switch to a

  • Tonight We Improvise (work by Pirandello)

    Italian literature: Luigi Pirandello: …si recita a soggetto (1930; Tonight We Improvise). This was a way of transferring the dissociation of reality from the plane of content to that of form, thereby achieving an almost perfect unity between ideas and dramatic structure. Pirandello’s plays, including perhaps his best, Enrico IV (1922; Henry IV), often…

  • toning (film process)

    history of the motion picture: Introduction of colour: …replaced by mechanized tinting and toning. Tinting coloured all the light areas of a picture and was achieved by immersing a black-and-white print in dye or by using coloured film base for printing. The toning process involved chemically treating film emulsion to colour the dark areas of the print. Each…

  • toning blue (pigment)

    Prussian blue: …blue has a reddish tint; toning blue is dull, with a strong red tone. All these pigments are chemically similar, differences in shade arising from variations in particle size and details of the manufacturing process.

  • Tonio Kr?ger (novella by Mann)

    Tonio Kr?ger, novella by Thomas Mann, originally published in German in 1903. The partially autobiographical work explores the problem of the artist who, in his devotion to his craft, confronts the antithesis of spirit and life. From earliest childhood Tonio Kr?ger is aware of his separation from

  • T?nisson, Jaan (Estonian statesman)

    Jaan T?nisson, Estonian statesman, lawyer, newspaper editor, and civic leader who opposed Russian (tsarist and communist) domination of his country. In 1905, after a revolution had broken out in Russia, T?nisson founded the National Liberal Party in Estonia and in 1906 sat in the first Russian Duma

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