236 résultats pour "five"

• Ferdinand Magellan I INTRODUCTION Ferdinand Magellan (1480?

  reduced fleet and brought it to its goal, the Moluccas, where he took on a cargo of cloves. One ship tried to return across the Pacific but was forced back by the windsand then captured by the Portuguese, who interned its crew. Cano made the long westward return voyage with one last ship, the Victoria . After a difficult voyage, with a remaining crew of 18, the Victoria reached Sanlúcar de Barrameda on September 6, 1522, almost three years to the day after setting forth. The cargo of cloves s...

• Ferdinand Magellan.

  reduced fleet and brought it to its goal, the Moluccas, where he took on a cargo of cloves. One ship tried to return across the Pacific but was forced back by the windsand then captured by the Portuguese, who interned its crew. Cano made the long westward return voyage with one last ship, the Victoria . After a difficult voyage, with a remaining crew of 18, the Victoria reached Sanlúcar de Barrameda on September 6, 1522, almost three years to the day after setting forth. The cargo of cloves s...

• Ferdinand Magellan - explorer.

  reduced fleet and brought it to its goal, the Moluccas, where he took on a cargo of cloves. One ship tried to return across the Pacific but was forced back by the windsand then captured by the Portuguese, who interned its crew. Cano made the long westward return voyage with one last ship, the Victoria . After a difficult voyage, with a remaining crew of 18, the Victoria reached Sanlúcar de Barrameda on September 6, 1522, almost three years to the day after setting forth. The cargo of cloves s...

• Coffee - biology.

  States law, the addition of chicory or any other substance must be clearly stated on the brand label. IV HISTORY Exactly where and when coffee was first cultivated is not known, but some authorities believe that it was grown initially in Arabia near the Red Sea about AD675. Coffee cultivation was rare until the 15th and 16th centuries, when extensive planting of the tree occurred in the Yemen region of Arabia. The consumption of coffee increasedin Europe during the 17th century, prompting the...

• Debating Sports Records Mark Purdy, sports columnist for the San Jose Mercury News in California, compiles a list of sports records that he believes will never be broken and a separate list of records that he thinks are soon to be eclipsed.

  UCLA’s dominance of NCAA men’s college basketball in the late 1960s and early 1970s will never be matched. With John Wooden as coach, the Bruins went from1967 to 1973 without losing a tournament game. Wooden built a dynasty around a system that stressed team play and solid defense, anchored by standout centersLew Alcindor (who later changed his name to Kareem Abdul-Jabbar) and Bill Walton. The Bruins’ ten straight appearances in the Final Four (1967-1976) will alsobe tough to top, given that tod...

• Debating Sports Records Mark Purdy, sports columnist for the San Jose Mercury News in California, compiles a list of sports records that he believes will never be broken and a separate list of records that he thinks are soon to be eclipsed.

  UCLA’s dominance of NCAA men’s college basketball in the late 1960s and early 1970s will never be matched. With John Wooden as coach, the Bruins went from1967 to 1973 without losing a tournament game. Wooden built a dynasty around a system that stressed team play and solid defense, anchored by standout centersLew Alcindor (who later changed his name to Kareem Abdul-Jabbar) and Bill Walton. The Bruins’ ten straight appearances in the Final Four (1967-1976) will alsobe tough to top, given that tod...

• The Tennis Battle of the Sexes.

  and a raincoat. With the rise in women's tennis Riggs saw the chance for a huge hustle and began making blunt statements about the weakness of the women's game. He challengedany of the top five players on the women's circuit to a match. Margaret Smith Court responded, and the two met on Mother's Day, May 12, 1973. Riggs, a slight,almost frail-looking man, 5-foot-5, with heavy black glasses, looked more like Woody Allen than a chiseled tennis professional, but he possessed an assortment oftri...

• United Provinces of Central America.

  IV REUNION EFFORTS Efforts to reunite the Central American federation in the 1840s all failed. But unity was still seen as a desirable goal—to give the states more power when dealing withforeign nations and to tie together people with a common heritage. But as conservatives came to power in each of the states, they rejected a restored federation,associating the idea too closely with the hated Morazán and his liberal policies. Carrera’s Guatemala was the first formally to declare itself an inde...

• St. John's (city, Newfoundland and Labrador) - Geography. I INTRODUCTION St. John's (city,

  coast of Newfoundland and Labrador have brought some hope of potential economic upturn for the port. St. John’s has an international airport, which connects the city to mainland Canada and points outside the country. The city is also the eastern terminus of the Trans-Canada Highway. Although traffic through the city’s harbor has diminished considerably, the port of St. John’s continues to serve as an important Canadian Coast Guarddepot and port of call for container ships. Passenger service on t...

• Giraffe - biology.

  One of the most striking elements of giraffe behavior is the duel between males fighting for mating privileges. Giraffe duels are among the most extraordinary in theanimal kingdom. They start when two males approach each other and begin to rub and intertwine their necks. This behavior—known as necking—allows the opponentsto assess each other’s size and strength. Often, necking alone is enough to establish seniority. If not, the rivals begin to exchange blows with their heads. Each giraffebraces...

• Westerns I INTRODUCTION Gene Autry Known as the Singing Cowboy, Gene Autry was the star of nearly 100 Westerns during his career as an actor.

  James Fenimore CooperNineteenth-century American writer James Fenimore Cooper, famed for his adventure novels of American frontier life, wasalso an ardent social critic. Cooper wrote a series of five novels, known collectively as the Leather-Stocking Tales, in whichhe detailed the adventures of a fictional frontiersman named Natty Bumppo. In Bumppo, Cooper portrayed a man ofnature and a friend of the Native Americans. In addition to fiction, Cooper wrote several nonfiction works criticizingAmeri...

• Eritrea - country.

  1993 decree set up a formal transitional government under EPLF control. This provided for a National Assembly, a president, and council of ministers. Isaias Afwerki,secretary general of the EPLF, was formally elected president by the National Assembly in June 1993. A new constitution was approved in 1997. Under this constitution, the National Assembly is the country’s legislature. Its members are popularly elected to five-yearterms. A president, elected by the National Assembly to a five-year te...

• Portland - geography.

  Garden arena, which opened in 1995. In 2000 the Portland Fire, an expansion Women's National Basketball Association team, began play in the Rose Garden as well. VI ECONOMY Portland enjoys a diversified economy. Major manufactured products include paper, transportation equipment, metal products, sportswear, and electronic componentsand equipment. Major corporations headquartered in the metropolitan region include Nike, a leader in the manufacture of sports footwear, in Beaverton; Louisiana-Paci...

• Togo - country.

  corn, millet, and sorghum. The leading export crops are coffee, cotton, groundnuts, and cacao. Livestock, chiefly sheep and goats, are raised on the northern plateau.Fish are caught in Togo’s rivers and in the Gulf of Guinea. B Mining and Manufacturing Togo is a leading producer of phosphates, which are by far the country’s most significant mineral product. In 2004, 400,000 metric tons of phosphate rock were mined.Industrial activity is limited but growing. The leading manufactures include ceme...

• Hippopotamus - biology.

  hippo backs up to its droppings and uses its tail as a paddle, flicking the dung through the air. This creates a pile that can become several meters wide over time. Male river hippos start to establish territories when they are in their early 20s, and they may eventually control more than 250 m (820 ft) of the water's edge.Subordinate males come and go freely, but a rival male will spark a confrontation if it tries to intrude. The territory owner and intruder face each other open-mouthedand, if...

• Antigua and Barbuda - country.

  The monetary unit of Antigua and Barbuda is the East Caribbean (EC) dollar of 100 cents (2.70 East Caribbean dollars equal U.S.$1, a fixed rate since 1976). VI ENVIRONMENTAL CONCERNS The growth of the tourist industry has created some environmental problems, including uncontrolled disposal of sewage from hotels on the beach. Hotel developmentalso threatens the Antiguan mangrove trees. Water management is another major area of concern because of limited natural freshwater resources. Coral reefs...

• Miami (Florida) - geography.

  VI EDUCATIONAL AND CULTURAL INSTITUTIONS Colleges and universities in the area include the University of Miami, Florida International University, Barry University, St. Thomas University, and Florida MemorialCollege. Miami-Dade Community College, one of the nation’s largest two-year colleges, has six campuses in the region. Leading museums include the Historical Museumof Southern Florida, the Miami Museum of Science, the Miami Art Museum, the Lowe Art Museum on the campus of the University of M...

• Cameroon - country.

  seminomadic herders of the north. Cattle, goats, and fowl are the most commonly raised animals. B Forestry and Fishing Timber is traditionally one of Cameroon’s most valuable exports, consisting mainly of mahogany, ebony, and teak. The timber cut in 2006 amounted to 11.4 million cu m(401 million cu ft). Most of the fish caught in Cameroon come from the country’s rivers and lakes and are consumed locally. However, deep-sea fishing activity isincreasing, especially from the port of Douala. Some 1...

• Conceptual analysis

  Kant's important idea that conceptual truths can be either analytic a priori or synthetic a priori is effectively erased by Gottlob Frege in his Foundations of Arithmetic (1884). Frege's overriding philosophical aim is to put mathematical proof on a firm footing by reducing the truths of arithmetic to analytic truths of logic. In view of this, the proper goal of an analysis is the production of non-circular, explanatory, yet meaning-preserving general definitions of fundamental concepts -...

• Obesity.

  of a day, contributing to the development of obesity. V TREATMENTS FOR OBESITY Obesity can become a chronic lifelong condition caused by overeating, physical inactivity, and even genetic makeup. No matter what the cause, however, obesity can beprevented or managed with a combination of diet, exercise, behavior modification, and in severe cases, weight-loss medications and surgery. A Diets The most common and conservative treatment for obesity utilizes a nutritionally balanced, low calorie diet...

• Sierra Leone (country) - country.

  commodities such as palm oil, palm kernels, coffee, cacao, ginger, kola nuts, and piassava (palm fibers) are grown for export. Cattle, goats, and sheep are raised, andthe fishing industry is of increasing importance. B Mining Gem and industrial diamonds are the leading mineral products of Sierra Leone. In 2004, 309,390 carats of gem-quality diamonds were produced. Rutile, a titanium oreof which Sierra Leone has one of the world’s largest deposits, and bauxite are also mined in large quantities....

• The Gambia - country.

  The population of The Gambia (2008 estimate) is 1,735,464, making it one of the least populous countries of Africa. Still, the country has a fairly high overall populationdensity of 174 persons per sq km (449 per sq mi), and the population is increasing at a rate of 2.7 percent a year. Banjul, formerly called Bathurst, is the capital andonly seaport. The largest city is Serrekunda, a transportation hub and commercial center. B Religion and Language The great majority of the people of The Gambia...

• Comoros - country.

  Since 1981 the currency has been the Comorian franc. The Comorian franc had a fixed exchange rate with the French franc of 50 to 1 until 1994, when the rate was changed to 75 Comorian francs to 1 French franc. In 2006, the Comorian franc exchanged at an average of 392 to U.S.$1. Transport between the islands is mostly by air, and there is an international airport at Hahaia on Njazidja where jets can land. Road networks have been built betweenmost of the main island settlements, but the mountai...

• Hormone.

  women is called a follicle-stimulating hormone. When a follicle-stimulating hormone binds to an ovary cell, it stimulates the enzymes needed for the synthesis ofestradiol, a female sex hormone. Another gonadotropin called luteinizing hormone regulates the production of eggs in women and the production of the male sexhormone testosterone. Produced in the male gonads, or testes, testosterone regulates changes to the male body during puberty, influences sexual behavior, and playsa role in growth. T...

• Benjamin Franklin.

  Copley Medal for distinguished contributions to experimental science. Franklin also exerted a great influence on education in Pennsylvania. In 1749 he wrote thepamphlet Proposals Relating to the Education of Youth in Pennsylvania; its publication led to the establishment in 1751 of the Academy of Philadelphia, later to become the University of Pennsylvania. The curriculum he suggested departed considerably from the study of the Greek and Roman classics then in vogue. Instead itemphasized Engl...

• Benjamin Franklin - USA History.

  Copley Medal for distinguished contributions to experimental science. Franklin also exerted a great influence on education in Pennsylvania. In 1749 he wrote thepamphlet Proposals Relating to the Education of Youth in Pennsylvania; its publication led to the establishment in 1751 of the Academy of Philadelphia, later to become the University of Pennsylvania. The curriculum he suggested departed considerably from the study of the Greek and Roman classics then in vogue. Instead itemphasized Engl...

• Moscow (city, Russia) - geography.

  V RECREATION About 30 percent of Moscow’s territory is occupied by parks and public gardens, which were important elements of Soviet city planning. Gorky Park, which providesactivities such as amusement rides and boating, sits on the right bank of the Moscow River; the park’s display of a retired Soviet space shuttle dominates the riverside.The Moscow Zoo is located just west of the city center. The Botanical Gardens, administered by the Russian Academy of Sciences, offers a diverse display of...

• Astronaut - astronomy.

  Every operation during a flight is important and interesting, but many might be boring to an observer. Much of an astronaut’s job is entering computer instructions,preparing samples, making measurements, recording data, fixing what breaks, and adjusting the checklist when something unexpected happens. Sometimes astronautsretrieve or repair satellites, rendezvous or dock with other spacecraft, and do important emergency repairs. The adaptability of the human crew is crucial to the successof missi...

• Soil. I INTRODUCTION Soil, the loose material that covers the land surfaces of

  an exchange between plants and the atmosphere, as oxygen diffuses into the soil and is used by roots for respiration. In turn, the resulting carbon dioxide diffusesthrough pore spaces and returns to the atmosphere. This exchange is most efficient in soils with a high degree of porosity. For farmers, gardeners, landscapers, andothers with a professional interest in soil health, the process of aeration—making holes in the soil surface to permit the exchange of air—is a crucial activity. Theburrowi...

• Electronic Games.

  arcade game of all time. With Pizza Time Theaters legitimizing the idea of arcades and hits such as Ms. Pac-Man , Asteroids , Donkey Kong , Tempest , Frogger , and Defender bringing new excitement to gaming, the coin-operated video game business boomed. In 1981 Americans spent 75,000 person-years and $5 billion playing video games at anestimated 4,300 arcades in the United States. Many popular arcade games also were translated for use on the Atari 2600 and its chief rivals in the homemarket—M...

• Liberia - country.

  West Atlantic, or Kwa linguistic groups. D Education Education is free and compulsory for children between the ages of 6 and 15. However, a scarcity of educational facilities means that few Liberians progress beyondprimary school. Almost all children of primary school-age attend school, but the figure drops to 23 percent (1999–2000) for secondary school-age children. Just 60percent of the population was literate in 2005. Higher education is provided by the University of Liberia (1862), in Monro...

• Supernova - astronomy.

  The term hypernova has been proposed for an extremely massive core-collapse supernova—possibly more than 100 times the mass of the Sun. A hypernova is thought to form a black hole. Just before it explodes, a hypernova may release a huge burst of gamma rays in a jet from the rotating black hole at its center. These jets mayexplain the so-called long gamma-ray bursts detected by astronomers. According to some researchers, massive stars with over 40 solar masses may sometimescollapse directly int...

• Libya - country.

  junipers and mastic trees are found in the higher elevations. Only a few large mammals are found in Libya. Wildlife includes desert rodents, hyenas, gazelles, and wildcats. Eagles, hawks, and vultures are common. E Environmental Issues Libya has undertaken a number of major irrigation projects intended to ease the country’s water shortage. The most ambitious is the so-called Great Man-Made River(GMMR), a massive 25-year irrigation scheme begun in 1984. The GMMR is a vast water pipeline system d...

• Drug. I INTRODUCTION Drug, substance that affects the function of living cells, used

  normalizing chemical activity in the emotional centers of the brain. Antianxiety drugs, also referred to as tranquilizers, treat anxiety by decreasing the activity in theanxiety centers of the brain. Sedative-hypnotic drugs are used both as sedatives to reduce anxiety and as hypnotics to induce sleep. Sedative-hypnotic drugs act by reducing brain-cell activity.Stimulant drugs, on the other hand, increase neuronal (nerve cell) activity and reduce fatigue and appetite. Analgesic drugs reduce pain...

• Musical I INTRODUCTION George Gershwin American pianist, songwriter, and composer George Gershwin was one of the most important figures in popular song in the 1920s and 1930s.

  C Extravaganzas Another predecessor of musical comedy, the extravaganza, evolved soon after the American Civil War (1861-1865) from traditional English pantomime. Extravaganzaswere typically based on fairy tales and Mother Goose. They introduced some of the elements—songs, dances, and comedy combined with spectacular stage sets andeffects—that American musical comedy later became known for. The first and most famous extravaganza show was The Black Crook (1866), often described as America’s fi...

• Democratic Party.

  At the beginning of the 20th century the Democrats’ minority position among voters remained central to their existence. The Progressive split in Republican rankshelped elect Woodrow Wilson twice, but the entry of the United States into World War I ended that. The war, popular at first, backfired against the Wilsonadministration when large numbers of German Americans and Irish Americans protested with their votes against U.S. involvement on England’s side. The result wasanother Republican landsli...

• Carbon - chemistry.

  Graphite is black and slippery and conducts electricity. In graphite, the atoms form planar, or flat, layers. Each layer is made up of rings containing six carbon atoms.The rings are linked to each other in a structure that resembles the hexagonal mesh of chicken wire. Each atom has three sigma bonds (with 120° between any two ofthe bonds) and belongs to three neighboring rings. The fourth electron of each atom becomes part of an extensive pi bond system. Graphite conducts electricity,because th...

• Tanzania - country.

  The population of Tanzania (2008 estimate) is 40,213,162, giving the country an overall population density of 45 persons per sq km (118 per sq mi). Yet the populationdistribution is irregular, with high densities found near fertile soils around Kilimanjaro and the shores of Lake Malawi, and comparatively low density throughout much ofthe interior of the country. In the late 1960s and 1970s the Tanzanian government resettled most of the rural population in collective farming villages as part of i...

• Canadian Architecture I INTRODUCTION L'Anse aux Meadows In around ad 1000 Norse Vikings sailed from Greenland to North America and set up a village on the tip of what is now the island of Newfoundland's Great Northern Peninsula.

  IglooSome Inuit peoples in the Arctic regions of Canada live in domed houses of snow, or igloos, which provide good insulationand protection from wind. The word igloo comes from the Inuit iglu, meaning “house.”George Holton/Photo Researchers, Inc. Canada’s original inhabitants are known as the First Nations. At the time of European arrival, about 40 nations were scattered across Canada. Many of them lived alongthe coasts, where they could fish. These nations can be classified into five major gro...

• Soccer's Big Show Comes to the United States.

  There were many doubters, both overseas and within the United States. Some U.S. sportswriters derided the idea of holding the World Cup in the United States asakin to staging the World Series in India—how could there be any local interest? Foreign critics felt that money was the sole reason for FIFA's decision and that thesport was about to be cheapened to make it acceptable to Americans. The rumors flew: FIFA was going to enlarge the goals, it would allow timeouts (unheard of inthe sport) to ac...

• Dolphin (aquatic mammal) - biology.

  Scientists have observed dolphins displaying three types of caregiving behaviors: standing by, excitement, and supporting. In standing-by behavior, dolphins remain inthe vicinity of an injured or ill companion without offering aid. In excitement behavior, dolphins swim swiftly in circles around an injured dolphin, responding aggressivelytoward threats to the injured animal. For instance, they may bite harpoon lines or charge boats that come too close to the animal. In supporting behavior, one or...

• Excerpt from Barnaby Rudge - anthology.

  Mr. Dennis rolled lazily over upon his breast, and resting his chin upon his hand in imitation of the attitude in which Hugh lay, said, as he too looked towards thedoor: “ Ay, ay, you knew him, brother, you knew him. But who'd suppose to look at that chap now, that he could be the man he is! Isn't it a thousand cruel pities, brother,that instead of taking his nat'ral rest and qualifying himself for further exertions in this here honourable cause, he should be playing at soldiers like a boy?...

• Autism.

  may also repeat body movements, such as spinning, rocking, or flapping hands. When upset or excited, they may also harm themselves by skin-biting or head-banging. They may also show significant aggression toward other people or inanimateobjects, or may have episodes of extreme anger or frustration. D Associated Symptoms Some children with autism show other symptoms that do not contribute to the diagnosis of autism itself. Sensory sensitivity is quite common, especially to some textures, sounds,...

• Butterflies and Moths - biology.

  The smallest butterflies are certain blues that have wingspans of a mere 0.7 cm (0.25 in). The largest are the female giant birdwings of Papua New Guinea, whichmeasure up to 30 cm (12 in) across. Moths range in size from tiny Microlepidoptera, several groups of small moths with wings no more than 0.16 cm (0.06 in) across, togiant silk moths, such as the atlas moth, which may exceed 30 cm (12 in) in wingspan. IV REPRODUCTION AND LIFE CYCLE Butterflies locate potential mates by sight, identifyin...

• Western Music I INTRODUCTION Bizet's Carmen Georges Bizet's Carmen, first performed in Paris in 1875, was a milestone in the history of French opera.

  church ceremonies during the period from the 5th to the 7th century. Roman chant became known as Gregorian chant after Pope Gregory I, the Great, who may havecomposed some of the melodies and who actively encouraged an orderly, ritualized use of music by the church. Because Gregory and later popes preferred Gregorianchant to the varieties that had developed elsewhere in Europe, Gregorian chant eventually superseded most of the others. Gregorian and other chant styles arepreserved in many manuscr...

• Molecule - chemistry.

  attracted to the negatively charged electrons between them. The electrons belong to the molecule as a whole. However, each hydrogen atom now has a complete outershell of two electrons. The formula H 2 describes a hydrogen molecule, a discrete unit. When a molecule contains just two atoms, such as the hydrogen molecule does, it is called a diatomic molecule. Some atoms can form covalent bonds with more than one other atom and thus create a larger molecule. Atoms form molecules with covalent bo...

• Capital Punishment.

  deterrent effect. Capital punishment advocates note that because the death penalty is reserved for the most aggravated murders, the deterrent effect of capitalpunishment on such crimes may not be apparent in data on homicide rates in general. Supporters also urge that the conflicting results of various studies indicate thatthe deterrent effect of the death penalty cannot not be proven or disproven with any certainty. They maintain that in the absence of conclusive proof that the threat ofexecuti...

• Canadian Forces.

  As the Land Force Command component of the CF, the Canadian army is responsible for land combat and for physically protecting people and land-based resources. Itis the component of the CF most often called on to support international military operations and peacekeeping missions and to maintain order in times of civil unrest. A Organization The 20,900 personnel who comprise the army’s regular force are organized into four geographically based areas. Land Force Atlantic includes the provinces of...

• Estonia - country.

  protest the expansion of open-pit phosphorite mining in northeastern Estonia. Their success in stopping the expansion prompted further demonstrations as part of thecountry’s independence movement. Since independence Estonia has taken measures to protect the environment. The government has ratified international agreementsto reduce emissions of hazardous wastes and greenhouse gases, as well as to protect biodiversity, wetlands, and endangered species. Estonians cherish thecountryside, and 31 perc...

• Japanese Literature I INTRODUCTION Japanese Literature, literature of Japan, in written form from at least the 8th century AD to the present.

  The Man’yō’sh ū contains about 4,500 poems, most of them composed in the Nara period (710-784). Some of the poems are far older, however, and some of the verses date to earlier collections that have not survived. The work demonstrates a gradual change from basic verses on simple subjects to more sophisticated expressions with a broad range of subject matter. This text also shows the development of poetic forms such as the tanka (short poem), a form structured around alternating lines of 5 an...