Tunis Tunis is the capital of Tunisia and also the Tunis Governorate, with a population of 699,700 in 2003. Informal estimates state that the population of greater Tunis approaches two million. Situated on a large Mediterranean gulf , behind the Lake of Tunis and the port of La Goulette , the city extends along the coastal plain and the hills that surround it.
	Tunisia Tunisia , officially the Tunisian Republic , is a country situated on the Mediterranean coast of North Africa. It is the northernmost African country and the smallest of the nations situated along the Atlas mountains range, bordering Algeria, to the west, and Libya to the south east.
	Tunnel A tunnel is an underground passage. The definition of what constitutes a tunnel is not universally agreed upon. However, in general tunnels have a ratio of the length of the passage to the width of at least 2 to 1. In addition, they should be completely enclosed on all sides, save the openings for the length of the covered area.
	Tunnel vision Tunnel vision is the loss of peripheral vision with retention of central vision, resulting in a constricted circular tunnel-like visual field. Tunnel vision can be caused by: * Retinitis pigmentosa, a disease of the eye. * Sustained high accelerations . Typically, flying an airplane with a centripetal acceleration of up to or over 39 m/s2 with the head towards the center of curvature, common in aerobatic or fighter pilots.
	Túpac Amaru Revolutionary Movement The Tpac Amaru Revolutionary Movement or Movimiento Revolucionario Tpac Amaru was an insurgent guerrilla warfare movement active in Peru from 1984 to 1997. It was led by Nstor Cerpa Cartolini until his death in 1997. The MRTA took its name in homage to Tpac Amaru II, an 18th-century rebel leader who was himself named after his ancestor Tpac Amaru, the last indigenous leader of the Tahuantinsuyu people.
	Tupelo The Tupelos, genus Nyssa, are a small genus of about 9 to 11 species of trees with alternate, simple leaves. Most are highly tolerant of wet soils and flooding, some needing to grow in such environments. Five of the species are native to eastern North America from the extreme south of Canada south to eastern Mexico; the others to east and south Asia from China south to Malaysia and west to the Himalaya.
	Tupinambis Tupinambis is a lizard genus which belongs to the family of Teiidae. These large, South American lizards are commonly referred to as tegus; Tupinambis merianae, Tupinambis rufescens, and Tupinambis teguixin are all common in the pet trade. They are primarily or entirely carnivorous, except for T.
	Turaco The turacos, plantain eaters and go-away birds make up the bird family Musophagidae. In southern Africa both turacos and go-away birds are commonly known as louries. Traditionally, this group has been placed in the cuckoo order Cuculiformes, but Sibley-Ahlquist taxonomy raises this group to a full order Musophagiformes.
	Turban The turban is a headgear, of Asian origin, consisting of a long scarf wound round the head or an inner hat. The turban comes in many shapes and sizes and color of turbans vary, with the cloth's length rarely exceeding 5 meters. Early Persians wore a conical cap sometimes encircled by bands of cloth, which may be considered one of the origins of the modern turban.
	Turbellaria Turbellaria are a group of generally small and free-swimming members of the flatworm phylum Platyhelminthes. It is nowadays mostly considered obsolete, and the Acoela and Nemertodermata are excluded from the class into a phylum of their own. Their locomotion depends on cilia.
	Turbidity Turbidity is a cloudiness or haziness of water caused by individual particles that are too small to be seen without magnification, thus being much like smoke in air.
	Turbine A turbine is a rotary engine that extracts energy from a fluid flow. Claude Burdin coined the term from the Latin turbinis, or vortex, during an 1828 engineering competition. The simplest turbines have one moving part, a rotor assembly, which is a shaft with blades attached.
	Turbofan A turbofan is a type of fixed-wing aircraft engine, similar to a turbojet. It essentially consists of a ducted fan with a smaller diameter turbojet engine mounted behind it that powers the fan. Part of the airstream from the ducted fan passes through the turbojet where it is burnt to power the fan, but the majority of the flow bypasses it, and produces most of the thrust.
	Turbojet Turbojets are the simplest and oldest kind of general purpose jet engine. Two different engineers, Frank Whittle in United Kingdom and Hans von Ohain in Germany, developed the concept independently during the late 1930's. On 27 August, 1939 the Heinkel He 178 became the world's first aircraft to fly under turbojet power, thus becoming the first practical jet plane.
	TurboJET TurboJET is the brand name for the operations of the Hong Kong-based Shun Tak-China Travel Ship Management Limited, which is is established from the joint venture between Shun Tak Holdings Limited and China Travel in July 1999.
	Turboprop A Turboprop engine is a type of Gas turbine which uses most of its power to drive a propeller. The propeller of a turboprop is very similar to that used by piston or reciprocating engines, but turboprops usually use a constant velocity propeller. Turboprop engines are generally used on small or slow subsonic aircraft, but some aircraft outfitted with turboprops have cruising speeds in excess of 500 kts.
	Turbot Turbot are flatfish native to marine or brackish waters of the North Atlantic. The taxon name comes from the Greek language, with skopein meaning "to look" and ophthalmos meaning "eye". The European turbot is a large left-eyed flatfish found primarily close to shore in sandy shallow waters throughout the Mediterranean, the Baltic Sea, the Black Sea and the North Atlantic.
	Turbulence In fluid dynamics, turbulence or turbulent flow is a flow regime characterized by chaotic, stochastic property changes. This includes low momentum diffusion, high momentum convection, and rapid variation of pressure and velocity in space and time. Flow that is not turbulent is called laminar flow.
	Tureen A tureen is a broad, deep oval vessel with fixed loop handles and a low domed cover with a knob, used for serving foods such as soups or stews. Tureens may be ceramic—either the glazed earthenware called faience or porcelain—or silversmith, and customarily they stand on a serving plate en suite.
	Turfan Turfan is an oasis city in the Xinjiang Uighur Autonomous Region of the People's Republic of China. Its population was 254,900 at the end of 2003.
	Turin ' Turin is a major industrial city in north-western Italy, capital of the Piedmont region, located mainly on the west Stream bed of the Po River. The population of the city of Turin is 908,000 ; its metropolitan area totals about 1.7 million inhabitants.
	Turing machine Turing machines are extremely basic symbol-manipulating devices which despite their simplicity can be adapted to simulate the logic of any computer that could possibly be constructed. They were described in 1936 by Alan Turing. Though they were intended to be technically feasible, Turing machines were not meant to be a practical computing technology, but a thought experiment about the limits of mechanical computation; thus they were not actually constructed.
	Turkestan Turkestan is a region in Central Asia, which today is largely inhabited by Turkic peoples. It has been referenced in many Turkic and Persian sagas and is an integral part of Turan. Oghuz Turks, Uzbeks, Kazakhs, Khazars, Kyrgyz and Uygurs are some of the Turkic inhabitants of the region who, as history progressed, have spread further into Eurasia forming such Turkic nations as Turkey, Azerbaijan and Tatarstan.
	Turkey Turkey, officially the Republic of Turkey, is a Eurasian country that stretches across the Anatolian peninsula in Southwest Asia Asia and the Balkan region of Southeastern Europe Europe. Turkey borders eight countries: Bulgaria to the northwest; Greece to the west; Georgia to the northeast; Armenia, Iran and the Nakhichevan exclave of Azerbaijan to the east; and Iraq and Syria to the southeast.
	Turkey Oak The Turkey Oak is an oak native to southern Europe and Asia Minor. It is the Biological types#Type species of List of Quercus species#Section Cerris, a section of the genus characterised by shoot buds surrounded by soft bristles, bristle-tipped leaf lobes, and acorns that usually mature in 18 months.
	Turkey Vulture The Turkey Vulture is the most common vulture in the Americas. Despite the similar name and appearance, this species is unrelated to the Old World vultures in the family Accipitridae, which also includes eagles, hawks, kites and harriers. The American species is a New World vulture in the family Cathartidae.
	Turkic languages The Turkic languages constitute a language family of some thirty languages, spoken across a vast area from Eastern Europe to Siberia and Western China with an estimated 140 million native speakers and tens of millions of second-language speakers. The Turkic languages are traditionally considered to be part of the Altaic languages.
	Turkish coffee Turkish coffee is a specific way of preparing Coffee. It is common throughout the Middle East, North Africa, Somaliland and Balkan countries. This method of preparation is believed to have originated in Damascus and to have become widespread during the Ottoman Empire - hence the eventual appellation 'Turkish coffee'.
	Turkish Delight Turkish Delight, or lokum, is a confection made from Starch and sugar. It is often flavored with rosewater or lemon, the former giving it a characteristic pale pink color. It has a soft, sticky consistency, and is often packaged and eaten in small cubes that are dusted with sugar to prevent sticking.
	Turkish lira The Turkey lira was the currency of Turkey until 2005.
	Turkmenistan Turkmenistan is a country in Central Asia. The name Turkmenistan is derived from Persian language, meaning "land of the Turkmen". Before 1991, it was a constituent republic of the Soviet Union, called the Turkmen SSR. It is bordered by Afghanistan to the southeast, Iran to the southwest, Uzbekistan to the northeast, Kazakhstan to the northwest, and the Caspian Sea to the west.
	Turmeric Turmeric is a spice commonly used in curries and other South Asian cuisine. Its active ingredient is curcumin. It is a significant ingredient in most commercial curry powders. Turmeric is also used to give a yellow color to some prepared Culinary mustards, canned chicken broth, and other foods .
	Turn The Tides Turn The Tides is the first album by 38th Parallel.
	Turnbuckle A turnbuckle is a device for adjusting the tension in ropes, cables, and tie rods. It normally consists of two screw thread eyelets, one screwed into each end of a small metal loop, one with a left-hand thread and the other with a right-hand thread. The tension can be adjusted by rotating the loop, which causes both eyelets to be screwed in.
	Turnip The turnip is a root vegetable commonly grown in temperate climates worldwide for its white, bulbous taproot. Small, tender varieties are grown for human consumption, while larger varieties are grown as feed for livestock. Turnips are notably popular in Europe, particularly in its colder parts, because they grow well in cold climates and can be stored for several months after harvest.
	Turnstile A turnstile, also called a baffle gate, is a form of gate which allows one person to pass at a time. It can also be made so as to enforce One-way traffic#One-way traffic of people, and in addition, it can restrict passage to people who insert a coin, a ticket, a pass, or similar.
	Turnstiles Turnstiles was the fourth album by Billy Joel, released in 1976. In part, the album was made to celebrate Joel's return to New York City after his sojourn in California. Three of the album's tracks are about New York: "Summer, Highland Falls", "New York State of Mind" and "Miami 2017".
	Turnstone Turnstones are two bird species, the Ruddy Turnstone, and the Black Turnstone, in the family Scolopacidae. Both birds are distinctive medium-sized waders. They are high Arctic breeders, and are bird migration. These chunky powerful birds, have strong necks and bills well suited to their feeding technique.
	Turquoise Turquoise is opaque, blue-to-green hydrate copper aluminium phosphate mineral according to the chemical formula CuAl648'5H2O. It is rare and valuable in finer grades and has been enjoyed as a gemstone and ornamental stone for thousands of years owing to its unique hue.
	Turtle Turtles are reptiles of the order Testudines , most of whose body is shielded by a special bone or cartilage animal shell developed from their ribs. The order of Testudines includes both extant and extinct species, the earliest turtles being known from the early Triassic Period, making turtles one of the oldest reptile groups, and a much more ancient group than the lizards and snakes.
	Turtle Soup Turtle Soup is the last original studio album by The Turtles. It was released in 1969 on the White Whale Records label. The album was produced by Ray Davies of The Kinks - he had never produced other artists records again. 1993 Repertoire Records CD-issue included 8 bonus tracks.
	Tuscan order Among the classical orders of architecture, the Tuscan order is the newcomer, a stocky simplified variant of the Doric order that was introduced into the of classical architecture by Italian architectural theorists of the 16th century. The five orders including a "Tuscan order" were meticulously described by the Italian Sebastiano Serlio in his treatise on architecture.
	Tuscany Tuscany is a region in central Italy, bordering on Latium to the south, Umbria and Marche to the east, Emilia-Romagna and Liguria to the north, and the Tyrrhenian Sea to the west. It is often regarded as among the most beautiful parts of Italy. Tuscany was the birthplace of the Italian Renaissance, and its artistic heritage includes architecture, painting and sculpture, collected in dozens of museums, the best-known of which is the Uffizi and the Bargello in Florence, Italy
	Tusk A tusk is an extremely long tooth of certain mammals that protrudes when the mouth is closed. Tusk-bearing mammals include elephants, warthogs, walruses, and narwhals. Tusks are used to produce ivory, which is used in artifacts and jewelry, and formerly in other items such as piano keys.
	Tussock Tussock may refer to a clump of a grass or the tuft of hairs on certain moths, called tussock moths. Also a matt of decaying roots and vegetation floating on a lake or pond. In New Zealand tussock refers to a plant that is usually found in the harsh areas of the country, such as mountains.
	Tutelage
	Tuvalu Tuvalu, formerly known as the Ellice Islands, is a Polynesia island nation located in the Pacific Ocean midway between Hawaii and Australia. Its nearest neighbours are Kiribati, Samoa and Fiji. Comprising 4 reef islands and 5 true atolls, with a total land area of just 26 square kilometers , it is the second-least populated independent country in the world, Vatican City being the smallest.
	Tux Tux , is the official mascot of the Linux kernel. The concept of the Linux mascot being a penguin came from Linus Torvalds, the creator of Linux. Tux was created by Larry Ewing in 1996 after an initial suggestion made by Alan Cox and further refined by Linus Torvalds on the Linux kernel mailing list .
	Tuxtla Gutiérrez Tuxtla Gutirrez is the capital city of the States of Mexico of Chiapas. It is the seat of the local public administration, of the local authorities, and of the delegations of the Federal government of the United Mexican States in the state. It covers more than 40% of the municipal territory, and continues to grow.
	TV dinner TV Dinner is the trademark for a brand of packaged meal developed by Gerry Thomas in 1954 for C.A. Swanson & Sons, which at the time was a subsidiary of Campbell Soup Company. The name in full was TV Brand Frozen Dinner. In informal usage, "TV Dinner" eventually became synonymous with any prepackaged dinner purchased frozen in a supermarket and heated at home.
	Tweedledum and Tweedledee Tweedledum and Tweedledee are characters in Lewis Carroll's Through the Looking-Glass and in a nursery rhyme by an anonymous author. The names originally came from a John Byrom poem.
	Tweeter A tweeter is a loudspeaker designed to produce high frequencies, typically from around 2,000 Hertz to 20,000 Hertz. Some tweeters can reach up to 30-35kHz.
	Tweezers Tweezers are tools used for picking up small objects that are not easily managed or handled with the human hands. They are probably derived from tongs, pincers, or scissors-like pliers used to grab or hold hot objects from the dawn of recorded history. Two sticks would be used to pinch another stick over a stone age fire.
	Twerp
	Twiggy Twiggy is an England supermodel, actress, and singer, now also known by her married name of Twiggy Lawson. Twiggy was born in the London suburb of Neasden to William Norman and Helen Hornby. Twiggy became famous at the age of sixteen, under the influence of her boyfriend and manager, Justin de Villeneuve.
	Twilight Twilight is the time before sunrise or after sunset when sunlight Scattering in the upper Earth's atmosphere illuminates the lower atmosphere and the surface of the Earth.
	Twill Twill is a type of fabric weaving with a pattern of diagonal parallel ribs. It is made by passing the weft threads over one Warp thread and then under two or more warp threads. Examples of twill fabric are chino cloth, gabardine, tweed and serge.
	Twin Twins in animal biology is a case of multiple birth in which the mother gives birth to two offspring from the same pregnancy. Human twins are two individuals who have shared the uterus during a single pregnancy and are usually, but not necessarily, childbirth in close succession.
	Twin cities Twin cities are two city that are geography close to each other and may seem to form a single unit, often referred to collectively.
	Twine Twine is a strong thread composed of two or three smaller threads or strands twisted together. A thin cord or string or rope.
	Twinflower Twinflower is a woodland subshrub, treated either in the family Caprifoliaceae, or sometimes in its own family Linnaeaceae. The stems are slender, pubescent and prostrate, growing to 20-40 centimetre long, with opposite evergreen rounded oval leaf 3-10 millimetre long and 2-7 mm broad.
	Two-toed sloth The two extant species of two-toed sloths are Linnaeus's Two-toed Sloth and Hoffmann's Two-toed Sloth. However, the name "two-toed" for these sloths is a misnomer as they both have three toes; they only have two fingers, though. They are the only members of the genus Choloepus and the only living members of the family Megalonychidae.
	Tyche In Greek mythology, Tyche was the presiding tutelary deity that governed the fortune and prosperity of a city, its destiny. Increasingly during the Hellenistic period cities had their own specific iconic version of Tyche, wearing a mural crown, that is a crown like the walls of the city.
	Tycho Brahe Tycho Brahe , born Tyge Ottesen Brahe , was a Denmark nobility best known today as an early astronomy, though in his lifetime he was also well known as an astrology and alchemy. He was granted an estate on the island of Hven and the funding to build the Uraniborg, an early research institute, where he built large astronomical instruments and took many careful measurements.
	Tylenol Tylenol is a popular American brand of drugs for relieving analgesic, reducing fever, and relieving the symptoms of allergy, common cold, cough, flu, sold by Johnson & Johnson. Its original, flagship product, acetaminophen, is marketed for headaches, fever, muscle pain and body pain, arthritis, and joint pain.
	Tympanoplasty Tympanoplasty is reconstructive surgery for the tympanic membrane, or eardrum. External links ** - discusses risks of tympanoplasty & related procedures.
	Tyndall effect The term Tyndall effect is usually applied to the effect of light scattering on particles in colloid systems, such as suspension or emulsions. It is named after the Ireland scientist John Tyndall. The Tyndall effect is used to tell the difference between the different types of mixtures namely solution, colloid and suspension.
	Typeface In typography, a typeface consists of a coordinated set of glyphs designed with stylistic unity. A typeface usually comprises an alphabet of letters, numerals, and punctuation marks. A typeface may also include ideograms and symbols, or consist entirely of them, for example, mathematical or map making symbols.
	Typewriter A typewriter is a Machine, electromechanical, or Electronics device with a set of "keys" that, when pressed, cause characters to be printed on a document, usually paper. In the late 19th and the start of the 20th century a person who operated such a device was sometimes also called a typewriter but it then became more common to call the person a typist.
	Typewriter keyboard The 1874 Sholes & Glidden typewriters established the QWERTY layout for the letter keys that is used nowadays in Anglophone countries for virtually all computer keyboards and the majority of other keyboards. Other nations using the Latin alphabet may use variants of the QWERTY layout, for example the French AZERTY layout.