<var id="79jxb"><video id="79jxb"></video></var>
<var id="79jxb"><strike id="79jxb"></strike></var>
<cite id="79jxb"><span id="79jxb"></span></cite>
<cite id="79jxb"><video id="79jxb"><listing id="79jxb"></listing></video></cite><cite id="79jxb"><span id="79jxb"><menuitem id="79jxb"></menuitem></span></cite><cite id="79jxb"><noframes id="79jxb"><menuitem id="79jxb"></menuitem><cite id="79jxb"><span id="79jxb"><cite id="79jxb"></cite></span></cite><var id="79jxb"><video id="79jxb"></video></var>
<var id="79jxb"><strike id="79jxb"><thead id="79jxb"></thead></strike></var>
<menuitem id="79jxb"><strike id="79jxb"></strike></menuitem><menuitem id="79jxb"></menuitem>
<var id="79jxb"><strike id="79jxb"><thead id="79jxb"></thead></strike></var>
<cite id="79jxb"><span id="79jxb"></span></cite>
<cite id="79jxb"></cite>
<cite id="79jxb"></cite>
<var id="79jxb"></var>
<var id="79jxb"></var>
You are using an outdated browser. Please upgrade your browser to improve your experience and security.
  • gazette (periodical)

    Gazette, originally, a newssheet containing an abstract of current events, the forerunner of the modern newspaper. The word is derived from the Italian gazzetta, a name given to informal news or gossip sheets first published in Venice in the mid-16th century. (Some historians speculate that the

  • Gazette of the United States (American newspaper)

    John Fenno: …founder in 1789 of the Gazette of the United States, a major political organ of the Federalist Party.

  • Gazette, La (French newspaper)

    Théophraste Renaudot: …under Richelieu’s supervision, Renaudot founded La Gazette (later La Gazette de France), a weekly sheet relating government-sanctioned news, which he edited and published until his death. In 1635 he established a free dispensary and two years later added France’s first pawnbroking shops to the bureau’s activities. His installation of public-health…

  • gazetteer

    dictionary: …names only is called a gazetteer.

  • Gazi (Turkmen ruler)

    Dānishmend dynasty: Dānishmend’s son and successor, Gazi, intervened in dynastic struggles among the sons of Q?l?j Arslan and helped Mas?ūd seize power in 1116. Gazi then captured Malatya, Ankara, Kayseri, and Kastamonu from Mas?ūd’s rivals (1127). Finally in 1133 Gazi recaptured Kastamonu from the Byzantine emperor John II Comnenus, who had…

  • Gazi Husrev Bey Mosque (mosque, Sarajevo, Bosnia and Herzegovina)

    Sarajevo: …city’s principal mosques are the Gazi Husreff-Bey’s Mosque, or Begova D?amija (1530), and the Mosque of Ali Pasha (1560–61). Husreff-Bey also built the medrese (madrasah), a Muslim school of theology; the Imaret, a free kitchen for the poor; and the hamam, public baths. A late 16th-century clock tower is adjacent…

  • Gazi Ma?usa (Cyprus)

    Famagusta, a major port in the Turkish Cypriot-administered portion of northern Cyprus. It lies on the island’s east coast in a bay between Capes Greco and Eloea and is about 37 miles (55 km) east of Nicosia. The port possesses the deepest harbour in Cyprus. Famagusta is a Frankish corruption of

  • Gaziantep (Turkey)

    Gaziantep, city, south-central Turkey. It is situated near the Sacirsuyu River, a tributary of the Euphrates River, in limestone hills north of Aleppo, Syria. The city was strategically situated near ancient trade routes, and recent excavations have unearthed fragments of pottery indicating

  • gazista (Central American political group)

    cacos: …opposed by the more conservative gazistas, led by José Cecilio del Valle, who insisted upon protection for private property and gradual change but also advocated safeguarding political liberties. Rivalry over political power, however, as well as conflicting ideologies, was the cause of this factionalism.

  • gazpacho (food)

    Gazpacho, cold soup of Spanish cuisine, especially that of Andalusia. It is an ancient dish mentioned in Greek and Roman literature, although two of the main ingredients of the modern version, tomatoes and green peppers, were brought to Spain from the New World only in the 16th century. Spanish

  • Gazprom (Russian company)

    Armenia: Nikol Pashinyan government: After Russia’s Gazprom hiked the price of natural gas to Armenia, Pashinyan visited Iran to discuss using Armenia as a potential transit point for Iranian gas. Armenia’s new government also raised hopes of a fresh start in negotiations with Azerbaijan over the Nagorno-Karabakh region. A number of…

  • Gazzara, Ben (American actor)

    Ben Gazzara, (Biagio Anthony Gazzara), American actor (born Aug. 28, 1930, New York, N.Y.—died Feb. 3, 2012, New York City), was distinguished by his gravelly voice and brooding screen and stage presence. During his more than 60 years in show business, he enjoyed a career on Broadway, originating

  • Gazzara, Biagio Anthony (American actor)

    Ben Gazzara, (Biagio Anthony Gazzara), American actor (born Aug. 28, 1930, New York, N.Y.—died Feb. 3, 2012, New York City), was distinguished by his gravelly voice and brooding screen and stage presence. During his more than 60 years in show business, he enjoyed a career on Broadway, originating

  • Gazzetta dello Sport, La (Italian journal)

    Italy: Media and publishing: …circulation are the sports titles La Gazzetta dello Sport and Corriere dello Sport.

  • Gazzetta Piemontese (Italian newspaper)

    La Stampa, (Italian: “The Press”) morning daily newspaper published in Turin, one of Italy’s most influential newspapers. It was established in 1868 as the Gazzetta Piemontese and became an important voice in Italy’s struggle for liberation and unification. The Gazzetta was purchased in 1895 by two

  • Gazzetta Ufficiale (Italian government publication)

    Italy: The legislature: …force when published in the Gazzetta Ufficiale.

  • Gazzetta Veneta, La (Italian periodical)

    Gasparo, Count Gozzi: …those of Addison and Steele: La Gazzetta Veneta (1760–61), a chronicle of Venetian life, and L’Osservatore (1761–62), a literary, philosophical, and theatrical review containing character sketches and satirical works.

  • Gazzettino rosa (Italian journal)

    Felice Cavallotti: …year he founded the journal Gazzettino rosa, in which he gained fame with his articles lampooning the monarchists. He was also a serious scholar and translated the critical life of Jesus, Das Leben Jesu kritisch bearbeitet (1835–36), by the German theologian David F. Strauss.

  • Gbagbo, Laurent (president of C?te d’Ivoire)

    Laurent Gbagbo, Ivoirian educator and politician who became president of C?te d’Ivoire in 2000. During his presidency, he grappled with civil war and an extended period of disunity. After disputing that he lost an election in November 2010, he refused to step down, which led to a political crisis

  • Gbagyi language

    Benue-Congo languages: Nupoid: …Nupoid languages are Nupe (1,000,000), Gbagyi (700,000), and Ebira (1,000,000). They are spoken in the area north and west of the confluence of the Niger and Benue rivers.

  • Gbandi (people)

    Ngbandi, a people of the upper Ubangi River in southern Central African Republic and northern Democratic Republic of the Congo. Ngbandi speak a language of the Adamawa-Ubangi subgroup of the Niger-Congo language family that is related to that of neighbouring Banda and Gbaya. Ngbandi is a term

  • Gbanga (Liberia)

    Gbarnga, city, north-central Liberia, West Africa, at the intersection of roads from Monrovia and northern Sierra Leone. A rural administrative and local trade centre, it has government and church secondary schools, several churches, and a mosque. Cuttington University College (Episcopalian) and

  • Gbanka (Liberia)

    Gbarnga, city, north-central Liberia, West Africa, at the intersection of roads from Monrovia and northern Sierra Leone. A rural administrative and local trade centre, it has government and church secondary schools, several churches, and a mosque. Cuttington University College (Episcopalian) and

  • Gbari (people)

    African dance: Masquerade dancers: …Akakayi ancestral masqueraders of the Gwari wear close-fitting head and body coverings, which permit rapid, staccato movements while dancing at the “second burial” (i.e., the post-burial celebrations) of a leader of the community. The Egungun ancestral masqueraders of Yorubaland appear in a wide variety of loosely flowing cloth or palm-leaf…

  • Gbarnga (Liberia)

    Gbarnga, city, north-central Liberia, West Africa, at the intersection of roads from Monrovia and northern Sierra Leone. A rural administrative and local trade centre, it has government and church secondary schools, several churches, and a mosque. Cuttington University College (Episcopalian) and

  • Gbaya (people)

    Gbaya, a people of southwestern Central African Republic, east-central Cameroon, northern Congo (Brazzaville), and northwestern Congo (Kinshasa). Numbering about 970,000 at the end of the 20th century, they speak a language of the Adamawa-Ubangi subgroup of the Niger-Congo language family that is

  • Gbaya language

    Gbaya: …20th century, they speak a language of the Adamawa-Ubangi subgroup of the Niger-Congo language family that is related to those of their Banda and Ngbandi neighbours.

  • Gbeya (people)

    Gbaya, a people of southwestern Central African Republic, east-central Cameroon, northern Congo (Brazzaville), and northwestern Congo (Kinshasa). Numbering about 970,000 at the end of the 20th century, they speak a language of the Adamawa-Ubangi subgroup of the Niger-Congo language family that is

  • Gbeya language

    Gbaya: …20th century, they speak a language of the Adamawa-Ubangi subgroup of the Niger-Congo language family that is related to those of their Banda and Ngbandi neighbours.

  • Gbeyar River (river, West Africa)

    Mano River, river rising in the Guinea Highlands northeast of Voinjama, Liberia. With its tributary, the Morro, it forms more than 90 miles (145 km) of the Liberia–Sierra Leone border. The river and its affluents (including the Zeliba) drain a basin of 3,185 square miles (8,250 square km). It

  • GBM (instrument)

    Fermi Gamma-ray Space Telescope: …Area Telescope (LAT) and the Gamma-ray Burst Monitor (GBM), which work in the energy range of 10 keV to 300 GeV (10,000 to 300,000,000,000 electron volts) and are based on highly successful predecessors that flew on the Compton Gamma Ray Observatory (CGRO) in the 1990s. Unlike visible light or even…

  • GBO (observatory, Green Bank, West Virginia, United States)

    National Radio Astronomy Observatory (NRAO), the national radio observatory of the United States. It is funded by the National Science Foundation and is managed by Associated Universities, Inc., a consortium of nine leading private universities. Its headquarters are in Charlottesville, Va. The NRAO

  • Gbowee, Leymah (Liberian activist)

    Leymah Gbowee, Liberian peace activist known for rallying women to pressure leaders into ending Liberia’s civil war. She was one of three recipients, along with Ellen Johnson Sirleaf and Tawakkul Karmān, of the 2011 Nobel Peace Prize, for their nonviolent efforts to further the safety and rights of

  • Gbowee, Leymah Roberta (Liberian activist)

    Leymah Gbowee, Liberian peace activist known for rallying women to pressure leaders into ending Liberia’s civil war. She was one of three recipients, along with Ellen Johnson Sirleaf and Tawakkul Karmān, of the 2011 Nobel Peace Prize, for their nonviolent efforts to further the safety and rights of

  • GBT (telescope, West Virginia, United States)

    radio telescope: Filled-aperture telescopes: …in the world is the Robert C. Byrd Green Bank Telescope (GBT) located in Green Bank, W.Va. This 110-by-100-metre (360-by-330-foot) off-axis radio telescope was completed in 2000 and operates at wavelengths as short as a few millimetres. The moving structure, which weighs 7.3 million kg (16 million pounds), points to…

  • GBTV (Web site)

    Glenn Beck: …Beck directed his energies toward GBTV, a subscription Web site. The site streamed his radio show as well as other original programming and, beginning in September 2011, his eponymous weeknight talk show. In June 2012 GBTV merged with his already-established Web site TheBlaze.com.

  • GC (chemistry)

    Gas chromatography, in analytical chemistry, technique for separating chemical substances in which the sample is carried by a moving gas stream through a tube packed with a finely divided solid that may be coated with a film of a liquid. Because of its simplicity, sensitivity, and effectiveness in

  • GC/MS system (chemistry)
  • GCA (aviation technology)

    history of flight: Avionics, passenger support, and safety: The ground-controlled approach (GCA), in which a ground observer monitors the course and descent angle of an aircraft via radar, enables pilots to land under extremely adverse weather conditions. GCA was used extensively by the U.S. military during the 1948 Berlin blockade and airlift and was…

  • Gcaleka (people)

    Xhosa: …the Xhosa clans include the Gcaleka, Rharhabe, Ngqika, Ndlambe, and the Gqunkhwebe (the latter being partly of Khoekhoe origin).

  • GCC (international organization)

    Gulf Cooperation Council (GCC), political and economic alliance of six Middle Eastern countries—Saudi Arabia, Kuwait, the United Arab Emirates, Qatar, Bahrain, and Oman. The GCC was established in Riyadh, Saudi Arabia, in May 1981. The purpose of the GCC is to achieve unity among its members based

  • GCD (mathematics)

    arithmetic: Fundamental theory: …of these numbers, called their greatest common divisor (GCD). If the GCD = 1, the numbers are said to be relatively prime. There also exists a smallest positive integer that is a multiple of each of the numbers, called their least common multiple (LCM).

  • GCH (mathematics)

    set theory: Present status of axiomatic set theory: … (CH) and its extension, the generalized continuum hypothesis (GCH), are also of profound importance. In the following discussion of these questions, ZF denotes Zermelo-Fraenkel set theory without AC. The first finding was obtained by Kurt G?del in 1939. He proved that AC and GCH are consistent relative to ZF (i.e.,…

  • GCI (military technology)

    military communication: World War II and after: …aircraft—the system called GCI (ground-controlled intercept). Radio-controlled guidance of falling bombs enabled an operator in a bomber to direct a bomb to the target. Electronic countermeasures made their appearance in the form of jamming transmitters to jam radio channels and radar, navigation, and other military electronics.

  • GCIM

    Global Commission on International Migration (GCIM), organization established in December 2003 to promote global discussion and cooperation on issues related to the international movement of persons. Formed by then United Nations Secretary-General Kofi Annan and the governments of 19 UN member

  • gcod (Buddhist rite)

    Gcod, (Tibetan: “to cut off,” or “to cut up”) esoteric Tibetan Buddhist rite that aims at “cutting off” the human ego and thus destroying the illusion of duality between samsara (the world of appearances and of death and rebirth) and nirvana. The participant performs a dance, alone, in an isolated

  • gCopaleen, Myles na (Irish author)

    Flann O’Brien, Irish novelist, dramatist, and, as Myles na gCopaleen, a columnist for the Irish Times newspaper for 26 years. O’Brien was educated in Dublin and later became a civil servant while also pursuing his writing career. He is most celebrated for his unusual novel At Swim-Two-Birds, which,

  • GCR (physics)

    cosmic ray: …Galaxy and are known as galactic cosmic rays (GCRs). The rest of the cosmic rays originate either from the Sun or, almost certainly in the case of the particles with the highest energies, outside the Milky Way Galaxy.

  • GCS (medicine)

    traumatic brain injury: …moderate, and severe—based on the Glasgow Coma Scale (GCS). The GCS is a 15-point scale designed to measure the patient’s ability to respond to visual, verbal, and motor stimuli after traumatic brain injury. The degree of impairment depends on the extent of damage to critical brain areas. The majority of…

  • GD (political coalition, Georgia)

    Georgia: Georgian Dream government: …the newly formed opposition coalition, Georgian Dream (GD), led by billionaire Bidzina Ivanishvili. Although polls showed the UNM with a strong lead several weeks before the October parliamentary elections, the party’s position was damaged in late September when the release of videos showing Georgian prison guards beating and sexually abusing…

  • GD (psychology)

    Gender dysphoria (GD), formal diagnosis given by mental health professionals to people who experience distress because of a significant incongruence between the gender with which they personally identify and the gender with which they were born. The GD diagnosis appears in the Diagnostic and

  • Gd (chemical element)

    Gadolinium (Gd), chemical element, a rare-earth metal of the lanthanide series of the periodic table. Gadolinium is a moderately ductile, moderately hard, silvery white metal that is fairly stable in air, although with time it tarnishes in air, forming a thin film of Gd2O3 on the surface.

  • Gdańsk (Poland)

    Gdańsk, city, capital of Pomorskie województwo (province), northern Poland, situated at the mouth of the Vistula River on the Baltic Sea. First mentioned as a Polish city in 997 or 999, Gdańsk was part of the Polish diocese of W?oc?awek, as noted in a papal bull of 1148. It was granted municipal

  • Gdańsk, Gulf of (gulf, Baltic Sea)

    Gulf of Gdańsk, southern inlet of the Baltic Sea, bordered by Poland on the west, south, and southeast and by Kaliningrad oblast (province) of Russia on the east. The gulf extends 40 miles (64 km) from north to south and 60 miles (97 km) from east to west and reaches its maximum depth, more than

  • Gdanskaya Bukhta (gulf, Baltic Sea)

    Gulf of Gdańsk, southern inlet of the Baltic Sea, bordered by Poland on the west, south, and southeast and by Kaliningrad oblast (province) of Russia on the east. The gulf extends 40 miles (64 km) from north to south and 60 miles (97 km) from east to west and reaches its maximum depth, more than

  • GDM (medical disorder)

    Gestational diabetes mellitus, temporary condition in which blood sugar (glucose) levels increase during pregnancy and return to normal after delivery. A healthy pregnancy is characterized by increased nutrient utilization, increased insulin resistance, and increased insulin secretion. Blood

  • GDP (economics)

    Gross domestic product (GDP), total market value of the goods and services produced by a country’s economy during a specified period of time. It includes all final goods and services—that is, those that are produced by the economic agents located in that country regardless of their ownership and

  • GDP (chemical compound)

    metabolism: Formation of coenzyme A, carbon dioxide, and reducing equivalent: …to ADP, directly or via guanosine diphosphate (GDP) [43].

  • GDS (feature, Neptune)

    Neptune: The atmosphere: The largest, called the Great Dark Spot because of its similarity in latitude and shape to Jupiter’s Great Red Spot, is comparable to Earth in size. It was near this storm system that the highest wind speeds were measured. Jupiter’s Great Red Spot has been seen in Earth-based telescopes…

  • GDV (disease)

    dog: Ailments: …to a condition known as gastric dilatation volvulus (GDV). This disease causes the stomach to twist in the abdominal cavity, cutting off the blood supply and filling the stomach with gas. GDV is always a medical emergency and must be treated as soon as the first symptoms appear. Early warnings…

  • Gdynia (Poland)

    Gdynia, city, Pomorskie województwo (province), north-central Poland. It lies along the Gulf of Gdańsk, just northwest of Gdańsk city. First mentioned in 1253, Gdynia began as a fishing settlement. Major growth came only after World War I, when Gdynia was returned from Germany to Poland by the

  • Ge (people)

    Ge, South American Indian peoples who speak languages of the Macro-Ge group. They inhabit eastern and southern Brazil and part of northern Paraguay. The Ge peoples include the Northwestern Ge (Timbira, Northern and Southern Kayapó, and Suyá), the Central Ge (Xavante, Xerente, and Akroá), the J

  • GE (American corporation)

    General Electric (GE), major American corporation and one of the largest and most-diversified corporations in the world. Its products include electrical and electronic equipment, aircraft engines, and financial services. Headquarters are in Boston. The company was incorporated in 1892, acquiring

  • Ge (chemical element)

    Germanium (Ge), a chemical element between silicon and tin in Group 14 (IVa) of the periodic table, a silvery-gray metalloid, intermediate in properties between the metals and the nonmetals. Although germanium was not discovered until 1886 by Clemens Winkler, a German chemist, its existence,

  • Gê (people)

    Ge, South American Indian peoples who speak languages of the Macro-Ge group. They inhabit eastern and southern Brazil and part of northern Paraguay. The Ge peoples include the Northwestern Ge (Timbira, Northern and Southern Kayapó, and Suyá), the Central Ge (Xavante, Xerente, and Akroá), the J

  • Ge (Greek mythology)

    Gaea, Greek personification of the Earth as a goddess. Mother and wife of Uranus (Heaven), from whom the Titan Cronus, her last-born child by him, separated her, she was also mother of the other Titans, the Gigantes, the Erinyes, and the Cyclopes (see giant; Furies; Cyclops). Gaea may have been

  • GE (agriculture)

    feed: Determination: The gross energy (GE) value of a feed is the amount of heat liberated when it is burned in a bomb calorimeter. The drawback of using this value is that a substance such as wood and corn may have a similar GE but vastly different nutritional…

  • GE 645 (computer)

    computer: Time-sharing from Project MAC to UNIX: … operating system running on the GE 645 computer. GE 645 exemplified the time-shared computer in 1965, and Multics was the model of a time-sharing operating system, built to be up seven days a week, 24 hours a day.

  • Ge Chaofu (Chinese author)

    Daoism: The Lingbao scriptures and liturgies: Ge Chaofu began composing the Lingbaojing (“Classic of the Sacred Jewel”) c. 397 ce. He claimed that they had been first revealed to his own ancestor, the famous Ge Xuan, early in the 3rd century. In these works the Dao is personified in a series…

  • Ge Hinnom (Judaism)

    death: Judaism: The real Ge Hinnom (“Valley of Hinnom”), where the early Israelites were said to have sacrificed their children to Moloch (and in which later biblical generations incinerated Jerusalem’s municipal rubbish), was transmuted into the notion of Gehenna, a vast camp designed for torturing the wicked by fire.…

  • Ge Hong (Chinese alchemist)

    Ge Hong, in Chinese Daoism, perhaps the best-known alchemist, who tried to combine Confucian ethics with the occult doctrines of Daoism. In his youth he received a Confucian education, but later he grew interested in the Daoist cult of physical immortality (xian). His monumental work, Baopuzi (“He

  • Ge kiln (pottery)

    Ge kiln, kiln known for the wares it produced during the early Song dynasty (960–1162), probably in the Zhejiang province in China. Scholars are uncertain of the kiln’s exact location. Legends recorded in documents of the Ming dynasty suggest that the kiln was named after the elder brother of the

  • Ge languages

    Ge languages, a group of about 10 South American Indian languages that extend through inland eastern Brazil as far as the Uruguayan border. Most linguists classify the Ge languages with a number of smaller groups (most of which were located closer to the Atlantic coast and are now extinct) in a

  • Ge Shuhan (Chinese general)

    An Lushan: An Lushan’s rebellion: …rivalry between Yang Guozhong and Ge Shuhan, the general in charge of the defense of the eastern approaches to Chang’an (present-day Xi’an), the main Tang capital. Fearing a coup against himself, Yang Guozhong goaded Ge Shuhan into abandoning his defensive posture and moving eastward against the rebels. The Tang army…

  • Ge Xuan (Chinese Daoist)

    Daoism: Developments in alchemical and other traditions: …these personages was a certain Ge Xuan (3rd century ce), who was said to have been initiated into an ancient alchemical tradition. His great-nephew Ge Hong in the next century became one of the most celebrated writers on the various technical means for attaining immortality. In his major work, the…

  • Ge yao (pottery)

    Ge kiln, kiln known for the wares it produced during the early Song dynasty (960–1162), probably in the Zhejiang province in China. Scholars are uncertain of the kiln’s exact location. Legends recorded in documents of the Ming dynasty suggest that the kiln was named after the elder brother of the

  • Ge’ermu (China)

    Golmud, city, central Qinghai sheng (province), western China. Golmud is an important highway centre, standing at the intersection of two ancient routes that more recently have become highways. One links Xining in Qinghai and Lanzhou in Gansu province in the east with the western Qaidam Basin area;

  • Geagea, Samir (Lebanese politician)

    Lebanon: Civil war: …East Beirut between Aoun and Samir Geagea, who then headed the LF, which proved very costly for the Maronite community and, over several months, resulted in the deaths of numerous (mostly Christian) Lebanese. The final vestiges of the Lebanese civil war were at last extinguished on October 13, 1990, when…

  • GEAR (South African economic plan)

    South Africa: Economy: …government created a five-year plan—Growth, Employment, and Redistribution (GEAR)—that focused on privatization and the removal of exchange controls. GEAR was only moderately successful in achieving some of its goals but was hailed by some as laying an important foundation for future economic progress. The government also implemented new laws…

  • gear (mechanics)

    Gear, machine component consisting of a toothed wheel attached to a rotating shaft. Gears operate in pairs to transmit and modify rotary motion and torque (turning force) without slip, the teeth of one gear engaging the teeth on a mating gear. If the teeth on a pair of mating gears are arranged on

  • gear oil

    petroleum refining: Gear oils and greases: In gear lubrication the oil separates metal surfaces, reducing friction and wear. Extreme pressures develop in some gears, and special additives must be employed to prevent the seizing of the metal surfaces. These oils contain sulfur compounds that form a resistant…

  • gear pump (mechanics)

    pump: Positive displacement pumps.: The most common type of gear pump is illustrated in Figure 1. One of the gears is driven and the other runs free. A partial vacuum, created by the unmeshing of the rotating gears, draws fluid into the pump. This fluid is then transferred to the other side of the…

  • gear shaper (tool)

    machine tool: History: Fellows, an American, designed a gear shaper that could rapidly turn out almost any type of gear.

  • gear wheel

    gear: …component consisting of a toothed wheel attached to a rotating shaft. Gears operate in pairs to transmit and modify rotary motion and torque (turning force) without slip, the teeth of one gear engaging the teeth on a mating gear. If the teeth on a pair of mating gears are arranged…

  • gear-cutting machine

    machine tool: Gear-cutting machines: Three basic cutting methods are used for machining gears: (1) form cutting, (2) template cutting, and (3) generating. The form-cutting method uses a cutting tool that has the same form as the space between two adjacent teeth on a gear. This method is used…

  • gear-generating method (machinery)

    machine tool: Gear-cutting machines: …on machines that utilize the gear-generating method. This method is based on the principle that two involute gears, or a gear and rack, with the same diametral pitch will mesh together properly. Therefore, a cutting tool with the shape of a gear or rack may be used to cut gear…

  • gear-hobbing machine

    machine tool: Gear-cutting machines: Gear-hobbing machines use a rotating, multiple-tooth cutting tool called a hob for generating teeth on spur gears, worm gears, helical gears, splines, and sprockets. More gears are cut by hobbing than by other methods because the hobbing cutter cuts continuously and produces accurate gears at…

  • Geary Act (United States [1892])

    Chinese Exclusion Act: The act: …10 years by the 1892 Geary Act, which also required that people of Chinese origin carry identification certificates or face deportation. Later measures placed a number of other restrictions on the Chinese, such as limiting their access to bail bonds and allowing entry to only those who were teachers, students,…

  • Geash (Nigeria)

    Jos, town, capital of Plateau state, on the Jos Plateau (elevation 4,250 feet [1,295 metres]) of central Nigeria. It lies on the Delimi River and near the source of the Jamaari River (called the Bunga farther downstream). Formerly the site of Geash, a village of the Birom people, the town developed

  • Geaster (genus of fungi)

    Lycoperdaceae: Another genus is Geastrum (Geaster), consisting of about 50 widespread species of earthstars with an expanded starlike base. They are found among dead leaves in woods in summer and autumn.

  • Geastrales (order of fungi)

    fungus: Annotated classification: Order Geastrales Found under trees, mainly conifers; spherical or egg-shaped fruiting bodies resemble mushrooms, some become star-shaped after splitting open to release spores; includes earthstars; included in subclass Phallomycetidae; example genera include Geastrum, Radiigera, and Sphaerobolus. Order Gomphales Most are mycorrhizal,

  • Geastrum (genus of fungi)

    Lycoperdaceae: Another genus is Geastrum (Geaster), consisting of about 50 widespread species of earthstars with an expanded starlike base. They are found among dead leaves in woods in summer and autumn.

  • Geb (Egyptian god)

    Geb, in ancient Egyptian religion, the god of the earth, the physical support of the world. Geb constituted, along with Nut, his sister, the second generation in the Ennead (group of nine gods) of Heliopolis. In Egyptian art Geb, as a portrayal of the earth, was often depicted lying by the feet of

  • Gêba River (river, Africa)

    Oio: …south, is formed by the Gêba River, which flows east-west. The Mans?a River flows east-west through the southern half of the region, and the Farim River (called the Cacheu River in its lower course) flows east-west through the region’s northern half; all three rivers empty into the Atlantic Ocean. Peanuts…

  • Gebal (ancient city, Lebanon)

    Byblos, ancient seaport, the site of which is located on the coast of the Mediterranean Sea, about 20 miles (30 km) north of the modern city of Beirut, Lebanon. It is one of the oldest continuously inhabited towns in the world. The name Byblos is Greek; papyrus received its early Greek name

  • Gebel, Matthes (German artist)

    medal: Germany and Austria: In Nürnberg, Matthes Gebel (active 1525–54) and his follower Joachim Deschler (active 1540–69) were the principal medalists. Ludwig Neufahrer worked mainly in Nürnberg and the Austrian Habsburg domains, employed by Ferdinand I from 1545. The Italian expatriate medalist Abondio was called to Vienna and also appointed court…

  • Gebel-Williams, Gunther (American animal trainer)

    Gunther Gebel-Williams, German-born American circus animal trainer (born Sept. 12, 1934, Schweidnitz, Ger. [now Swidnica, Pol.]—died July 19, 2001, Venice, Fla.), was one of the most celebrated circus entertainers in history. As animal trainer for the Ringling Brothers and Barnum & Bailey Circus, h

  • Geber (Spanish alchemist)

    Geber, unknown author of several books that were among the most influential works on alchemy and metallurgy during the 14th and 15th centuries. The name Geber, a Latinized form of Jābir, was adopted because of the great reputation of the 8th-century Arab alchemist Jābir ibn ?ayyān. A number of

  • Gebhard (archbishop of Cologne)

    Germany: Religion and politics, 1555–1618: In 1582 the archbishop-elector of Cologne, having converted to Calvinism, challenged the Ecclesiastical Reservation of the 1555 Augsburg treaty by holding on to his title, thus threatening to give the majority vote in the College of Electors to the Protestants. In the “Cologne War” of 1583 he was…

  • Gebhard of Dollnstein-Hirschberg (pope)

    Victor II, pope from 1055 to 1057. Victor was of noble birth and was appointed bishop of Eichst?tt in 1042. He eventually became chief adviser to the Holy Roman emperor Henry III, who in 1054 nominated him as Pope St. Leo IX’s successor. After his consecration on April 13, 1055, Victor joined H

Your preference has been recorded
Check out Britannica's new site for parents!
Subscribe Today!
91国产福利在线观看