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F ... Facets, Palace of

F: (from the article "Romance languages") ...may not have had phonemic status (in spite of the pair annus/agnus 'year'/'lamb,' in which /ŋ/ may be regarded as a positional variant of /g/). The Latin letter f probably ...
F region: highest region of the ionosphere, at altitudes greater than 160 km (100 miles); it has the greatest concentration of free electrons and is the most important of the ionospheric regions. ... [3 Related Articles]
F ring: (from the article "Saturn") ...radii lies the extremely tenuous D ring, which has no measurable effect on starlight or radio waves passing through it and is visible only in reflected light. Exterior to the ...
F-100: U.S. Air Force jet fighter aircraft, the first operational fighter to exceed the speed of sound in level flight. It was operational from 1953 to 1973. It was made by ... [3 Related Articles]
F-102 Delta Dagger: (from the article "military aircraft") ...included the first fighters intended from the outset to carry guided air-to-air missiles and the first supersonic all-weather fighters. Some were only marginally supersonic, notably the U.S. Convair F-102 Delta ...
F-104: jet day fighter aircraft built by Lockheed Aircraft Corporation for the U.S. Air Force but adopted by a total of 15 NATO and other countries. It was widely adapted for ...
F-105 Thunderchief: (from the article "military aircraft") ...produced jet fighter ever. It was a formidable threat to U.S. airmen over North Vietnam and to Israeli pilots over the Sinai Peninsula and Golan Heights in 1973. Also outstanding ...
F-111: (from the article "bomber") ...abandoned such bombers altogether, while the United States and the Soviet Union switched to a new generation of aircraft equipped with variable wings. The two countries developed the medium-range F-111 ...
F-117: single-seat, twin-engine jet fighter-bomber built by the Lockheed Corporation (now part of the Lockheed Martin Corporation) for the U.S. Air Force. It was the first stealth aircraft-i.e., an aircraft designed ... [1 Related Articles]
F-14: two-seat, twin-engine jet fighter built for the U.S. Navy by the Grumman Corporation (now part of the Northrop Grumman Corporation). As a successor to the F-4 Phantom II, it was ... [2 Related Articles]
F-15: twin-engine jet fighter produced by the McDonnell Douglas Corporation of the United States. Based on a design proposed in 1969 for an air-superiority fighter, it has also been built in ... [1 Related Articles]
F-16: single-seat, single-engine jet fighter built by the General Dynamics Corporation (now part of the Lockheed Martin Corporation) for the United States and more than a dozen other countries. The F-16 ... [3 Related Articles]
F-22 Raptor: (from the article "Boeing Company") ...design offered by a consortium comprising Lockheed (later Lockheed Martin), Boeing, and General Dynamics for a twin-engine advanced tactical fighter with stealth features; the aircraft was named the F-22 Raptor ...
F-4: two-seat, twin-engine jet fighter built by the McDonnell Aircraft Corporation (later the McDonnell-Douglas Corporation) for the United States and many other countries. The first F-4 was delivered to the U.S. ... [2 Related Articles]
F-86: U.S. single-seat, single-engine jet fighter built by North American Aviation, Inc., the first jet fighter in the West to exploit aerodynamic principles learned from German engineering at the close of ... [3 Related Articles]
F-boat: (from the article "seaplane") ...with separate pontoons or floats as floatplanes. The first practical seaplanes were built and flown in the United States by Glenn H. Curtiss, in 1911 and 1912. Curtiss' inventions led ...
F-box protein: (from the article "Life Sciences") ...animals. Most hormone receptors influence gene expression by entering the nucleus in response to hormone binding or through a complex cascade of signaling enzymes. Second, SCF^TIR1 is an F-box ubiquitin ...
F-centre: (from the article "colour centre") There are many types of colour centres. The best understood one, called an F-centre (German Farbe, "colour"), results from the absence of a negatively charged ion from a particular point ...
F-centre laser: (from the article "spectroscopy") The development of solid-state diode lasers, F-centre lasers, and spin-flip Raman lasers is providing new sources for infrared spectrometers. These sources in general are not broadband but have high intensity ...
F-class asteroid: (from the article "Asteroid taxonomic classes") Asteroids of the B, C, F, and G classes have low albedos and spectral reflectances similar to those of carbonaceous chondritic meteorites and their constituent assemblages produced by hydrothermal alteration ...
f-orbital: (from the article "crystal") ...(oxygen, sulfur, selenium, and tellurium) need two electrons to fill their outer p-shell. (Electron shells are divided into subshells, designated as s, p, d, f, g, and so forth. Each ...
F-test: (from the article "statistics") ...MSR, is computed by dividing SSR by a number referred to as its degrees of freedom; in a similar manner, the mean square due to error, MSE, is computed by ...
F-type star: (from the article "Space densities of stars") ...(i.e., the time for one cycle) of variation are closely related to their luminosity and that are therefore useful in measuring interstellar and intergalactic distances. Most are spectral type F ...
F.B.5 Gunbus: (from the article "military aircraft") ...with the propeller behind the engine) that was armed with a machine gun fired by an observer who sat ahead of the pilot in a tublike crew compartment. A development ...
F/A-18: (from the article "military aircraft") ...with a look-down/shoot-down capability; the MiG-31 Foxhound interceptor, apparently derived from the MiG-25 but with less speed and greater air-to-air capability; and the McDonnell Douglas F/A-18 Hornet, a single-seat, carrier-based ...
F1 hybrid: (from the article "plant breeding") ...because its male flowers (tassels) and female flowers (incipient ears) are separate and easy to handle, thus proving economical for the production of hybrid seed. The production of hand-produced F₁ ...
F1 layer: (from the article "ionosphere and magnetosphere") ...Although its degree of ionization persists with little change through the night, there is a change in the ion distribution. During the day, two layers can be distinguished: a small ...
F11F Tigercat: (from the article "military aircraft") ...Convair F-102 Delta Dagger, an all-weather interceptor that was the first operational "pure" delta fighter without a separate horizontal stabilizer. Other aircraft included the Grumman F11F Tigercat, the first supersonic ...
F1F0-proton-translocating ATPase: (from the article "bacteria") ...including the active transport of nutrients and the rotation of flagella. The protons also can move from the exterior of the cell into the cytoplasm by passing through a membrane ...
F4F Wildcat: (from the article "Grumman, Leroy Randle") ...founded the Grumman Aircraft Engineering Corporation on Long Island, N.Y. His FF-1, which entered service with the U.S. Navy in 1933, was a two-seat biplane with retractable landing gear. With ...
F6F Hellcat: (from the article "Grumman, Leroy Randle") ...introduced in 1940, Grumman switched to monoplane construction. The F4F featured a folding wing for compact stowage and was the United States' principal carrier-based fighter plane until Grumman's F6F Hellcat ...
Fa Ngum: founder and first king of the Lao kingdom of Lan Xang who created the first unified state of the Lao people. [2 Related Articles]
fa shih: (from the article "Daoism") ...or appeased and driven off, especially at all special occasions in the life of the family or the community. The person primarily involved in the practice of shenjiao in modern ...
Fa'id Pass: (from the article "World War II") ...Rommel judged that a counterstroke should be delivered first against the Allies in the west. Accordingly, on February 14 the Axis forces delivered a major attack against U.S. forces between ...
Fa-hsiang: (from the article "Fa-hsiang") school of Chinese Buddhism derived from the Indian Yogacara school. See Yogacara.development of YogacaraYogacaraThe teachings of the
Faba, Guido: (from the article "Italian literature") The founder of Italian artistic prose style, the Bolognese professor of rhetoric Guido Faba, illustrated his teaching with examples adapted from Latin. Guittone d'Arezzo, his most notable follower in epistolography, ...
Fabaceae: (from the article "shamrock") ...each of whose leaves is divided into three leaflets. Plants called shamrock include the wood sorrel (Oxalis acetosella) of the family Oxalidaceae, or any of various plants of the pea ...
Fabales: order of dicotyledonous flowering plants in the Rosid I group among the core eudicots. The order comprises 4 families (Fabaceae, Polygalaceae, Quillajaceae, and Surianaceae), 754 genera, and more than 20,000 ...
Faber, Eberhard: German businessman who, with his brother Lothar, expanded his family's pencil company into a global art supplies enterprise.
Faber, Frederick William: British theologian, noted hymnist, and founder of the Wilfridians, a religious society living in common without vows.
Faber, Johann Ludwig: (from the article "pottery") ...linear style that was nearly always based on line engravings. Faience thus decorated dates from about 1660 and is the work of Johann Schaper (died 1670), who had been a ...
Faber, Josef: (from the article "music recording") ...by an earthquake in the year 27, the statue seems to have lost this ability upon reconstruction.) Friar Roger Bacon is reported to have invented some sort of talking head ...
Faber, Lothar von: German entrepreneur who expanded a family pencil business into a worldwide firm preeminent in the manufacture of writing products and art supplies.
Faber, Michel: (from the article "English literature") ...another preoccupation of the 21st century's early years: the imitation of earlier literary styles and techniques. There was a marked vogue for pastiche and revisionary Victorian novels (of which Michel ...
Faber, Peter: French Jesuit theologian and a cofounder of the Society of Jesus, who was tutor and friend of Ignatius Loyola at Paris. He was appointed professor of theology at Rome by ...
Faberge, Peter Carl: one of the greatest goldsmiths, jewelers, and designers in Western decorative arts. [4 Related Articles]
Fabert, Abraham de: marshal of France, a leading French commander during the reigns of Louis XIII and Louis XIV.
Fabian Society: socialist society founded in 1883-84 in London, having as its goal the establishment of a democratic socialist state in Great Britain. The Fabians put their faith in evolutionary socialism rather ... [8 Related Articles]
Fabian, Saint: pope from 236 to 250. The successor to St. Anterus, Fabian was an outstanding administrator and one of the great popes of the early church. He supposedly divided Rome into ...
Fabius: (from the article "The Preakness Stakes") In 1956 Hartack rode Fabius to victory at the Preakness Stakes, and in 1957 he rode Iron Liege to victory at the Kentucky Derby. His four other Kentucky Derby winners ...
Fabius Ambustus, Quintus: Roman politician and commander who, according to the Roman historian Livy (1st century BC), was responsible for the sack of Rome by the Gauls in or soon after 390.
Fabius Maximus Verrucosus, Quintus: Roman commander and statesman whose cautious delaying tactics (whence the nickname Cunctator, meaning "delayer," which was not his official cognomen) during the early stages of the Second Punic War (218-201) ... [4 Related Articles]
Fabius Pictor, Quintus: one of the first Roman prose historians, an important source for later writers. [5 Related Articles]
Fabius, Laurent: (from the article "France") ...refused to allow Sarkozy to hold. The other immediate consequence of the referendum was a further deepening of divisions within the Socialists, the main opposition party. Former prime minister Laurent ...
fable: narrative form, usually featuring animals that behave and speak as human beings, told in order to highlight human follies and weaknesses. A moral-or lesson for behaviour-is woven into the story ... [16 Related Articles]
fabliau: a short metrical tale made popular in medieval France by the jongleurs, or professional storytellers. Fabliaux were characterized by vivid detail and realistic observation and were usually comic, coarse, and ... [4 Related Articles]
Fabre d'Eglantine, Philippe: French political dramatic satirist and prominent figure in the French Revolution; as deputy in the National Convention he voted for the death of Louis XVI. [2 Related Articles]
Fabre, Emile: French playwright and administrator of the Comedie-Francaise (1915-36) who developed it into a vehicle for classical and contemporary repertory.
Fabre, Francois-Xavier: (from the article "Albany, Louise Maximilienne Caroline, Countess of") After Alfieri's death (1803) Louise continued to live in Florence in the company of the French painter Francois Fabre, to whom she bequeathed all her property. Her house there was ...
Fabre, Jean Henri: French entomologist famous for his study of the anatomy and behaviour of insects.
Fabriano: town, in Marche (The Marches) region, central Italy. The town was the home of a minor school of painting founded in the late 14th century by Allegretto Nuzi and Gentile ...
fabric: (from the article "igneous rock") A major part of rock texture is fabric or pattern, which is a function of the form and outline of its constituent grains, their relative sizes, and their mutual relationships ...
fabrication: (from the article "aerospace industry") Fabrication involves the manufacture of individual components that make up larger assemblies or end products. This activity encompasses the working of metals and the incorporation of electrical and electronic devices ...
Fabricio, Ponte: (from the article "Rome") At Tiber Island are two bridges. The Ponte Cestio, often rebuilt since the 1st century BC, leads to Trastevere, while the Ponte Fabricio (62 BC), the oldest in Rome, runs ...
Fabricius: (from the article "Prague, Defenestration of") ...an assembly of Protestants at Prague, where the imperial regents, William Slavata and Jaroslav Martinic, were tried and found guilty of violating the Letter of Majesty and, with their secretary, ...
Fabricius ab Aquapendente, Hieronymus: Italian surgeon, an outstanding Renaissance anatomist who helped found modern embryology. [3 Related Articles]
Fabricius Luscinus, Gaius: Roman commander and statesman whose incorruptibility and austerity were frequently regarded as models of the early Roman virtues.
Fabricius, Johann Albert: German classical scholar and the greatest of 18th-century bibliographers.
Fabricius, Johann Christian: Danish entomologist known for his extensive taxonomic research based upon the structure of insect mouthparts rather than upon their wings. He also advanced theoretical propositions that were progressive for his ...
Fabricius, Johannes: Dutch astronomer who may have been the first observer of sunspots (1610/1611) and was the first to publish information on such observations. He did so in his Narratio de maculis ...
Fabris, Enrico: (from the article "Olympic Games") Canadian Cindy Klassen and Italian Enrico Fabris were the stars of the speed skating competition. Klassen won five medals in all-one gold, two silver, and two bronze. The young Italian ...
Fabritius, Barent: Dutch painter of portraits and of biblical, mythological, and historical scenes.
Fabritius, Carel: Dutch Baroque painter of portraits, genre, and narrative subjects whose concern with light and space influenced the stylistic development of the mid-17th-century school of Delft. [2 Related Articles]
Fabrizi, Nicola: one of the most militant and dedicated leaders of the Risorgimento, the movement aimed at the unification of Italy.
Fabro, Luciano: Italian artist was grouped with the avant-garde Arte Povera movement, which emphasized "poor," or raw, materials, though Fabro never fully accepted the characterization. Fabro's best-known sculptural works included Il buco ...
Fabrosauridae: (from the article "ornithopod") ...the Late Cretaceous Period (227 million to 65 million years ago) and were one of the most successful and enduring dinosaur lineages. Ornithopoda consisted of several subgroups, including Fabrosauridae, Heterodontosauridae, ...
Fabry's disease: sex-linked hereditary disease in which a deficiency in the enzyme alpha-galactosidase A results in abnormal deposits of a glycosphingolipid (ceramide trihexoside) in the blood vessels. These deposits in turn produce ... [2 Related Articles]
Fabry, Charles: French physicist who discovered in the upper atmosphere the ozone layer that acts as a screen protecting life on the surface of Earth from most of the harmful effects of ... [1 Related Articles]
Fabry-Perot interferometer: (from the article "optical interferometer") The Fabry-Perot interferometer (variable-gap interferometer) was produced in 1897 by the French physicists Charles Fabry and Alfred Perot. It consists of two highly reflective and strictly parallel plates called an ...
fabula Atellana: (Latin: "Atellan play"), the earliest native Italian farce, presumably rustic improvisational comedy featuring masked stock characters. The farces derived their name from the town of Atella in the Campania region ... [3 Related Articles]
fabula palliata: any of the Roman comedies that were translations or adaptations of Greek New Comedy. The name derives from the pallium, the Latin name for the himation (a Greek cloak), and ... [4 Related Articles]
fabula praetext: (from the article "Naevius, Gnaeus") second of a triad of early Latin epic poets and dramatists, between Livius Andronicus and Ennius. He was the originator of historical plays (fabulae praetextae) that were based on Roman ...
fabula togata: (from the article "stage design") ...(Roman comedies on Greek subjects and based on Greek models), actors wore chitons and the pallium, a cloak resembling the himation. In the subsequent, similar fabula togata, ...
facade: (from the article "Western architecture") ...became the basis of most of the architecture of the Western world in the 17th century. A northern Italian, Maderno worked most of his life in Rome where, about 1597, ...
Facchinetti. Alessandra: (from the article "Fashions") ...stake in the New York City ready-to-wear label Proenza Schouler, but that firm's leaders, Lazaro Hernandez and Jack McCollough, were not brought into management at Valentino. Instead, 35-year-old Alessandra Facchinetti, ...
face: front part of the head that, in vertebrates, houses the sense organs of vision and smell as well as the mouth and jaws. In humans it extends from the forehead ... [5 Related Articles]
face cam: (from the article "cam") Cams are made in a variety of forms, such as: (1) a rotating disk or plate with the required profile; (2) a plate with a groove cut on its face ...
face haulage: (from the article "coal mining") Coal haulage, the transport of mined coal from working faces to the surface, is a major factor in underground-mine efficiency. It can be considered in three stages: face or section ...
face powder: (from the article "cosmetic") ...a small part of which is saponified (converted to a crystalline form) in order to provide the quality of sheen. Such creams leave no oily finish, though they provide an ...
face presentation: (from the article "presentation") ...portion of the uterus, which projects into the vagina. In nearly all deliveries the presenting part is the vertex, the top of the head; in 3 or 4 percent of ...
face validity: (from the article "personality assessment") Among the most common of self-report tests are personality inventories. Their origins lie in the early history of personality measurement, when most tests were constructed on the basis of so-called ...
face ventilation: (from the article "coal mining") ...is an important auxiliary operation, while the task of carrying this air up to the working faces-the locations of which may change several times in a shift-is the unit operation ...
face-centred cubic structure: (from the article "steel") ...steel is the allotropy of iron-that is, its existence in two crystalline forms. In the body-centred cubic (bcc) arrangement, there is an additional iron atom in the centre of each ...
face-off: (from the article "ice hockey") ...drops the puck between opposing players, follows the infraction. In hockey competition that has no red line, an offside infraction involves a pass that has traveled across the two blue ...
Facebook: American company offering online social networking services. Facebook was founded as a social networking Web site in 2004 by Mark Zuckerberg, Dustin Moskovitz, and Chris Hughes, all of whom were ... [2 Related Articles]
facer-canceler machine: (from the article "postal system") Facing is the process of aligning letters so that all will have the address side facing the canceler, with stamps in a uniform position. The process is normally combined with ...
Faces, the: (from the article "Stewart, Rod") ...and future Rolling Stone Ron Wood in the Jeff Beck Group. Stewart's collaboration with Beck ended in 1969 when, after two albums, he was persuaded by Wood (who had been ...
facet: flat, polished surface on a cut gemstone, usually with three or four sides. The widest part of a faceted stone is the girdle; the girdle lies on a plane that ... [2 Related Articles]
facet analysis: (from the article "library") ...librarian S.R. Ranganathan, whose extraordinary output of books and articles has left its mark on the entire range of studies from archival science to information science. He introduced the term ...
faceting: (from the article "diamond cutting") From the girdler the diamond goes to the lapper, or blocker, who specializes in placing the first 18 main facets on a brilliant-cut diamond. It then goes to the brillianteer, ...
Facets, Palace of: (from the article "Moscow") On the west of Cathedral Square is a group of palaces of various periods. The Palace of Facets-so called from the exterior finish of faceted, white stone squares-was built in ...