597 résultats pour "sam"

• Poetry I INTRODUCTION Phyllis McGinley American poet and author Phyllis McGinley composed light, witty verse, much of which deals with family life.

  repetition of certain lines and the rhyming of certain lines. The Provençal sestina features a set of six words that end lines (end-words), repeated in a dizzyingly complexpattern. The range of effects created by the poetic line varies tremendously depending on its length, its patterns of repetition, and whether the sentence stops at the end of theline (end-stopped) or carries over the end of the line (enjambed). Many of the earliest examples of Old English poetry feature an accentual line with...

• Mercury (planet) - astronomy.

  In 1991 powerful radio telescopes on Earth revealed signs of possible deposits of ice in the polar regions of Mercury. These ice deposits occur in areas where sunlightnever falls, such as crater bottoms near both of the planet’s poles. Similar ice deposits may have been found during the 1990s near the poles of the Moon by theClementine and Lunar Prospector spacecrafts. The ice on Mercury likely comes from comets or water-bearing meteorites that have hit Mercury over the planet’s historyup throug...

• Excerpt from The Pickwick Papers - anthology.

  “Two or three veeks,” replied the man. “Weeks!” said Mr. Pickwick in astonishment—and out came the note-book again. “He lives at Pentonwil when he's at home,” observed the driver, coolly, “but we seldom takes him home, on account of his veakness.” “On account of his weakness!” reiterated the perplexed Mr. Pickwick. “He always falls down when he's took out o' the cab,” continued the driver, “but when he's in it, we bears him up werry tight, and takes him in werry short, so as heca...

• Chess.

  There are two standard methods of recording chess moves: the algebraic system and the descriptive system. In both systems, the pieces are designated by capitalinitials: K for king, Q for queen, R for rook, B for bishop, and N for knight. The initial P for pawn is used in the descriptive system only. Castling is noted as either 0-0(“short” castling on the king’s side) or 0-0-0 (“long” castling on the queen’s side). Each square is part of both a file and a rank, and in the algebraic system, that u...

• Moon - astronomy.

  B Volcanic Features Maria, domes, rilles, and a few craters display indisputable characteristics of volcanic origin. Maria are plains of dark-colored rock that cover approximately 40 percent ofthe Moon's visible hemisphere. The maria formed when molten rock erupted onto the surface and solidified between 3.16 billion and 3.96 billion years ago. This rockresembles terrestrial basalt, a volcanic rock type widely distributed on Earth, but the rock that formed the maria has a higher iron content an...

• Learning.

  B1 Acquisition The acquisition phase is the initial learning of the conditioned response—for example, the dog learning to salivate at the sound of the bell. Several factors can affect the speed of conditioning during the acquisition phase. The most important factors are the order and timing of the stimuli. Conditioning occurs most quickly when theconditioned stimulus (the bell) precedes the unconditioned stimulus (the food) by about half a second. Conditioning takes longer and the response is...

• Terrorism.

  exploitation, ethnic discrimination, and religious persecution. Perceived inequities in the distribution of wealth and political power have led some terrorists to attempt tooverthrow democratically elected governments. To achieve a fairer society, they would replace these governments with socialist or communist regimes. Left-wingterrorist groups of the 1960s and 1970s with such aims included Germany’s Baader-Meinhof Gang, Italy’s Red Brigades, and the Weather Underground ( see Weathermen) in the...

• World War II .

  the Nazi-Soviet Pact was signed. In the part published the next day, Germany and the Soviet Union agreed not to go to war against each other. A secret protocol gaveStalin a free hand in Finland, Estonia, Latvia, eastern Poland, and eastern Romania. See also German-Soviet Nonaggression Pact. III MILITARY OPERATIONS In the early morning hours of September 1, 1939, the German armies marched into Poland. On September 3 the British and French surprised Hitler by declaring war onGermany, but they...

• Neutron Star - astronomy.

  about three times the full mass of the sun, the gravitational force will exceed the strength of the material, and the core will collapse until it disappears from the visibleuniverse altogether. This extreme state of gravitational collapse is known as a black hole. Astronomers speculate that neutron stars in interacting binary star systemscan become black holes by accumulating mass in the same way that white dwarf stars in interacting binary star systems become more massive. Contributed By:Dennis...

• « Nob, espèce de nigaud à la caboche laineuse ! s’écria-t-il. Ne peux-tu

  « Personne ne nous a inquiétés, en tout cas, dit Pippin, et nous circulions lentement, sans faire garde. Nous pensions avoir laissé tous les ennuis derrière nous. » « Ah, pour ça, non, Maître, c’est d’autant plus regrettable, dit Poiredebeurré. Mais il n’ est pas étonnant qu’ils vous aient laissés tranquilles. Ils ne se lanceraient pas contre des gens armés, munis d’épées, de casques, de boucliers et de tout ça. Ça leur donnerait à réfléchir. Et je dois dire que ça m’a un peu interloqué...

• Neutron I INTRODUCTION Neutron, electrically neutral elementary particle that is part of the nucleus of the atom.

  Beta DecayBeta decay can occur in two ways. As shown on the left, a neutron turns into a proton by emitting an antineutrino and anegatively charged beta particle. As shown on the right, a proton turns into a neutron by emitting a neutrino and apositively charged beta particle. Positive beta particles are called positrons and negative beta particles are called electrons.After the decay, the nucleus of the atom contains either one less or one more proton. Beta decay changes an atom of oneelement i...

• Natural Satellite - astronomy.

  Titan, Saturn’s largest moon, also has few impact craters. Although icy volcanism from water and ammonia may occur along with some tectonic activity, Titan’s youngsurface is most likely the result of weather processes. Titan’s dense, cold atmosphere precipitates particles of complex organic molecules that accumulate as dunes andmountains. Methane rain erodes the surface and creates lakes at the moon’s poles. Triton’s young surface also may result from processes in its atmosphere, as well aserupt...

• Machine I INTRODUCTION Machine, simple device that affects the force, or effort, needed to do a certain amount of work.

  to decrease the amount of force needed to do work or to change the direction of the force. The wheel and axle and some levers can also be used to increase the speedof performance of a task, but doing so always increases the amount of force needed. A Inclined Plane NutsNuts are pieces of metal with a hole in the middle. They are screwed on the end of a bolt as a fastening. Nuts come invarying shapes, depending on their intended use.© Microsoft Corporation. All Rights Reserved. Ramps and staircas...

• Folk Dance I INTRODUCTION Traditional Irish Dancing Irish dancing comprises mainly reels and jigs and may be accompanied by lively folk music played on the fiddle, harp, or bagpipes.

  Highland Games and DancesHighland dances are part of the Highland Games, a series of events held annually in various parts of Scotland, Canada,and the United States. Dance historians point out that warriors from the Scottish Highlands once went into battle dancingand playing the bagpipes. Highland dances, performed to music played on bagpipes or fiddles, remain an important part ofScottish culture.Courtesy of BBC Worldwide Americas. All Rights Reserved. Folk dances are usually thought to be simp...

• Hydrogen - chemistry.

  Hydrogen gas does not usually react with other chemicals at room temperature. That is, it does not split into two hydrogen atoms to combine with other chemicals. Thebond between the hydrogen atoms is very strong and can only be broken with a large amount of energy. However, when heated with a flame or a spark, hydrogen gaswill react violently with oxygen in the air to produce water in the following reaction: 2H2 + O 2 → 2H 2O This chemical equation shows that two hydrogen molecules (H 2) and o...

• Map - Geography.

  Often only southeast slopes are hachured or shaded, giving somewhat the effect of a bird's-eye view of the area illuminated by light from the northwest. Shadings orcarefully drawn hachures, neither of which give elevations, are more easily interpreted than contour lines and are sometimes used in conjunction with them for greaterclarity. IV MAP PROJECTIONS For the representation of the entire surface of the earth without any kind of distortion, a map must have a spherical surface; a map of this...

• Bill of Rights.

  accused has the right to “confront”—that is, to cross-examine witnesses who testify against him or her at trial. Those accused also have a right to subpoena (compel)supporting witnesses to testify in court and to have a lawyer assist in their legal defense. G Seventh Amendment In Suits at common law, where the value in controversy shall exceed twenty dollars, the right of trial by jury shall be preserved, and no fact tried by a jury, shall beotherwise re-examined in any Court of the United Stat...

• Bill of Rights - U.

  accused has the right to “confront”—that is, to cross-examine witnesses who testify against him or her at trial. Those accused also have a right to subpoena (compel)supporting witnesses to testify in court and to have a lawyer assist in their legal defense. G Seventh Amendment In Suits at common law, where the value in controversy shall exceed twenty dollars, the right of trial by jury shall be preserved, and no fact tried by a jury, shall beotherwise re-examined in any Court of the United Stat...

• Skiing.

  Safety is very important to all skiers, and all Alpine resorts have a ski patrol. The ski patrol’s responsibility is to take care of injured skiers, to mark hazardous spots ontrails, to make sure that trails are in good condition before opening them, and, at times, to act as traffic police in congested areas. Skiers are also responsible for takingtheir own safety into consideration, as well as that of others. Anyone who participates in the sport should be aware of the Skier’s Responsibility Code...

• Cat Family - biology.

  cats have coats that are mainly brown, yellow, or gray, often with white underbellies. The cubs of many species of cats have spotted coats, which helps hide them ingrass and underbrush from predators. Adult cats that have mainly spotted patterns in their fur include cheetahs, leopards, clouded leopards, jaguars, ocelots, margays, Geoffroy’s cat, and servals. Singlecolor coats are found in lions, pumas, and jaguarundis. Some individuals among leopards and jaguars, and more rarely in other species...

• Economics.

  Malthus, nature's check was “positive”: “The power of population is so superior to the power of the earth to produce subsistence for man, that premature death must insome shape or other visit the human race.” The shapes it took included war, epidemics, pestilence and plague, human vices, and famine, all combining to level theworld's population with the world's food supply. The only escape from population pressure and the horrors of the positive check was in voluntary limitation of population, no...

• Criminal Procedure.

  B State Criminal Procedure A person prosecuted in the courts of a particular state on a charge of violating the criminal laws of that state is subject to state criminal procedure. State criminalprocedure is found in the constitution, statutes, rules, and judicial decisions of that state. Furthermore, portions of the U.S. Constitution are applicable to state criminaldefendants. State constitutions generally guarantee a state criminal defendant most of the same rights that a federal defendant is...

• First Americans.

  bones and artifacts helped 19th-century archaeologists establish the age of ancient human encampments in Europe. Yet, search as they might, American archaeologists found no comparable evidence of a Pleistocene-era human presence. But several sites revealed stone artifacts thatsome scholars believed looked similar to the ancient stone tools found in Europe. On the basis of this similarity, these experts claimed the American artifacts must be asold. By the 1890s, however, other scholars had challe...

• First Americans - Canadian History.

  bones and artifacts helped 19th-century archaeologists establish the age of ancient human encampments in Europe. Yet, search as they might, American archaeologists found no comparable evidence of a Pleistocene-era human presence. But several sites revealed stone artifacts thatsome scholars believed looked similar to the ancient stone tools found in Europe. On the basis of this similarity, these experts claimed the American artifacts must be asold. By the 1890s, however, other scholars had challe...

• Bicycle.

  narrow as possible to minimize weight and interference with pedaling. F Specialty Bicycles Many other types of bicycles are designed for special purposes. Although not as common as standard single-rider racing, touring, mountain, or recreational bicycles,they nonetheless have significant niches. Recumbent bicycles are bicycles on which the rider sits upright as if in a chair, with legs and feet stretched out in front. Because they support the rider’s lower back,recumbents allow the rider far mo...

• Saskatchewan (province) - Geography.

  The length of the frost-free season varies within the province. In the southwest, particularly in the valley lands along the South Saskatchewan River, the frost-freeperiod ranges from 150 to 160 days. Regina enjoys about 123 frost-free days, and Saskatoon has about 111. The far north has only from 85 to 95 frost-free days. One important characteristic of Saskatchewan’s climate is the great variability in temperature and precipitation from year to year, which is often critical for agriculture.The...

• Saskatchewan (province) - Canadian History.

  The length of the frost-free season varies within the province. In the southwest, particularly in the valley lands along the South Saskatchewan River, the frost-freeperiod ranges from 150 to 160 days. Regina enjoys about 123 frost-free days, and Saskatoon has about 111. The far north has only from 85 to 95 frost-free days. One important characteristic of Saskatchewan’s climate is the great variability in temperature and precipitation from year to year, which is often critical for agriculture.The...

• Heart.

  situation. A Cardiac Cycle Although the right and left halves of the heart are separate, they both contract in unison, producing a single heartbeat. The sequence of events from the beginning ofone heartbeat to the beginning of the next is called the cardiac cycle. The cardiac cycle has two phases: diastole, when the heart’s chambers are relaxed, and systole,when the chambers contract to move blood. During the systolic phase, the atria contract first, followed by contraction of the ventricles. T...

• Advertising.

  Advertising agencies make money in a variety of ways. When the agency uses the client’s advertising budget to buy time for an ad on the radio or on television or whenit buys space for an ad in a newspaper or magazine, the media outlet allows the agency to keep 15 percent of the cost of the space or the time as a commission. The15 percent commission has become an advertising industry standard and usually accounts for the largest portion of the agency’s income. Agencies also charge clientsfor the...

• Theodore Roosevelt.

  in Oyster Bay, Long Island. The couple had five children, Theodore Jr., Kermit, Ethel Carow, Archibald Bullock, and Quentin. They also raised Alice, Roosevelt’s daughterfrom his first marriage. Discouraged with politics, Roosevelt enjoyed family life and literary pursuits. He wrote Essays on Practical Politics in 1888. The same year he also wrote an opinionated biography of Gouverneur Morris, an American statesman who helped draft the Constitution of the United States. The book revealed far mo...

• Theodore Roosevelt

  in Oyster Bay, Long Island. The couple had five children, Theodore Jr., Kermit, Ethel Carow, Archibald Bullock, and Quentin. They also raised Alice, Roosevelt’s daughterfrom his first marriage. Discouraged with politics, Roosevelt enjoyed family life and literary pursuits. He wrote Essays on Practical Politics in 1888. The same year he also wrote an opinionated biography of Gouverneur Morris, an American statesman who helped draft the Constitution of the United States. The book revealed far mo...

• Anthropology.

  humans, such as tools, pottery, and buildings) and human fossils (preserved bones). They also examine past environments to understand how natural forces, such as climate and available food, shaped the development of human culture. Some archaeologists study cultures that existed before the development of writing, a time knownas prehistory . The archaeological study of periods of human evolution up to the first development of agriculture, about 10,000 years ago, is also called paleoanthropology....

• Modern Art I INTRODUCTION American Gothic American Gothic was painted by the 20th-century American artist Grant Wood in 1930.

  while at the other side a woman in black appears to mourn the end of her participation in the dance. Click on the buttonsto learn more.© Microsoft Corporation. All Rights Reserved. In view of this diversity, it is difficult to define modern art in a way that includes all of 20th-century Western art. For some critics, the most important characteristic ofmodern art is its attempt to make painting and sculpture ends in themselves, thus distinguishing modernism from earlier forms of art that had con...

• Albania - country.

  Joining the international community in its concern over the degradation of the environment, Albania is party to international agreements concerning biodiversity, climatechange, and wetlands. III THE PEOPLE OF ALBANIA In 2008 Albania’s population estimate was 3,619,778, resulting in an average density of 132 persons per sq km (342 per sq mi). More and more people have left ruralareas for urban ones, particularly in the northern districts, such that in 2005 some 45 percent of the population live...

• Wisconsin (state) - geography.

  -6° C (22° F) in the southeast, along the Lake Michigan shore. During winter extremely cold weather persists for several weeks at a time. C2 Precipitation Average annual precipitation ranges from 700 to 800 mm (28 to 32 in). Rainfall is generally heaviest during the spring and summer, and snowfall is generally moderatein the south, but can be quite heavy in the north. Thunderstorms, sometimes accompanied by devastating tornadoes, are common in spring and summer, particularly inthe southern part...

• Wisconsin (state) - USA History.

  -6° C (22° F) in the southeast, along the Lake Michigan shore. During winter extremely cold weather persists for several weeks at a time. C2 Precipitation Average annual precipitation ranges from 700 to 800 mm (28 to 32 in). Rainfall is generally heaviest during the spring and summer, and snowfall is generally moderatein the south, but can be quite heavy in the north. Thunderstorms, sometimes accompanied by devastating tornadoes, are common in spring and summer, particularly inthe southern part...

• Sweden - country.

  mi) and is Sweden’s second largest lake, after Vänern. The two lakes, together with several smaller lakes, rivers, and canals, form an internal water route called theGöta Canal. Built in the early 19th century, the Göta Canal extends for about 386 km (about 240 mi) and provides a scenic transportation link between the Baltic Sea,at Stockholm, and the Kattegat. Sweden’s other large lakes in the district include Mälaren, Hjälmaren, and the famously picturesque Siljan. D Climate Although one-seven...

• Wyoming (state) - geography.

  The basins, which lie in the rain shadow of mountains, are very dry, with an average annual precipitation of about 250 mm (about 10 in) or less; the Great Plains regionhas an annual average of about 380 mm (about 15 in), and the Black Hills region receives slightly more. Thunderstorms and hailstorms are relatively frequent insummer. The annual snowfall ranges from about 500 mm (about 20 in) in the Bighorn Basin to well over 5,100 mm (over 200 in) in the higher mountains, where annualprecipitatio...

• Wyoming (state) - USA History.

  The basins, which lie in the rain shadow of mountains, are very dry, with an average annual precipitation of about 250 mm (about 10 in) or less; the Great Plains regionhas an annual average of about 380 mm (about 15 in), and the Black Hills region receives slightly more. Thunderstorms and hailstorms are relatively frequent insummer. The annual snowfall ranges from about 500 mm (about 20 in) in the Bighorn Basin to well over 5,100 mm (over 200 in) in the higher mountains, where annualprecipitatio...

• Encyclopedia of Philosophy: The Theaetetus and the Sophist of Plato

  channels through which we see colours and hear sounds. The objects of one sense cannot be perceived withanother: we cannot hear colours or see sounds. But in that case, the thought that a sound and a colour are notthe same as each other, but two different things, cannot be the product of either sight or hearing. Theaetetus hasto concede that there are no organs for perceiving sameness and difference or unity and multiplicity; the mind itselfcontemplates the common terms which apply to eve...

•   Chapitre XXXVII Le mois de février à Salinas amène toujours un cortège d'humidité, de froid et de détresse.

  conservez danslaglacière ? – Différentes choses. – Avez-vous l’intentiondeles vendre ? Certaines sententtrèsmauvais. – C’est uneidée quimetrotte danslatête, ditAdam. Jene peux pasm’en débarrasser. Je suis persuadé quel’on peut conserver n’importe quoi,àcondition d’obtenirunfroid suffisant. – Evitons degarder dumammouth dansnotre glacière », ditLee. Si Adam avaiteudes milliers d’idées,commeSamHamilton, ellesauraient pu s’évaporer. Maisiln’en avait qu’une. Ilne cessait depenser aumammouth gelé.Il...

• Namibie (1999-2000) Un troisième mandat pour Sam Nujoma Les élections générales de décembre 1999 ont abouti à la réélection du...

  Namibie (1999-2000) Un troisième mandat pour Sam Nujoma Les élections générales de décembre 1999 ont abouti à la réélection du président Sam Nujoma (avec 70 % des suffrages) et accordé 52 des 72 sièges à son parti, l'Organisation du peuple du Sud-Ouest africain (SWAPO). S. Nujoma a bénéficié d'un amendement constitutionnel l'autorisant à briguer un troisième mandat, mais la participation (62 % contre 74 % en 1994) a laissé transparaître un début de désaffection envers le processus électoral. L'...

• Compositionality

  sentence construction, an operation on meanings, such that the meaning of any sentence is mechanically determined by applying the operations on meanings (given by the rules used in constructing the sentence) to the meanings of the simple parts. (Often a host of extra restrictions are incorporated. For example: the operations may be limited to applying function to argument; the order in which operations are applied may be settled by the structure of the sentence.) Some see such principles as prov...

• Steam Engine.

  wear caused by this pressure, steam-engine valves are frequently made in a cylindrical form entirely enclosing the piston, so that the pressure is equal all around thevalve and friction is minimized. The development of this type of valve is attributed to the American inventor and manufacturer George Henry Corliss. In other types ofslide valves, the moving portion of the valve is designed so that steam does not press directly on the back of the valve. The linkage between the piston of the engine...

• FRANCIS Sam : Rouge n° 1

  FRANCIS Sam Rouge no 1 Né à San Mateo, Californie , 1923 Blessé pendant la Seconde Guerre mondiale , il commence à peindre pendant sa convalescence. décide de se consacrer à la peinture et se rend à Paris pour suivre les cours de l'académie Fer· nand Léger. Francis cherche à exprimer dans sa peinture l'équivalent de ses sensations les plus intimes. mais parallèlement il fait de l'acte de peindre le sujet même de son tableau . Il e...

• Metabolism (chemistry) - biology.

  nearly perfect balance. Although much remains to be revealed about metabolic processes, biochemists now agree that regulatory, or rate-limiting, enzymes figure largely in the reactionsinvolved ( see Enzyme). Affecting metabolic pathways at the earliest steps, each enzyme molecule has a specific, or active, site that matches, or “fits,” its particular substrate—the compound with which the enzyme forms a product. The precision with which rate-limiting enzymes and substrates join to set off a parti...

• Arab Music I INTRODUCTION Umm Kulthum Egyptian singer Umm Kulthum was revered throughout Egypt, North Africa, and the Near East for her powerful voice and improvisational skill.

  The rhythmic structure of Arab music is similarly complex. Rhythmic patterns have up to 48 beats and typically include several downbeats (called dums ) as well as upbeats (called taks) and silences, or rests. To grasp a rhythmic mode, the listener must hear a relatively long pattern. Moreover, the performers do not simply play the pattern; they elaborate upon and ornament it. Often the pattern is recognizable by the arrangement of downbeats. The Rhythm in Arab Music illustration demonstratesa...

• Cuban Missile Crisis.

  inspect ships to determine whether they were carrying weapons. Kennedy warned that if Khrushchev fired missiles from Cuba, the result would be “a full retaliatoryresponse upon the Soviet Union.” Because international law defines a blockade as an act of war, Kennedy and his advisers decided to refer to the blockade as a quarantine. The United States wassupported by other members of the Organization of American States, an organization of nations in the western hemisphere that seek to cooperate on...

• Cuban Missile Crisis - U.

  inspect ships to determine whether they were carrying weapons. Kennedy warned that if Khrushchev fired missiles from Cuba, the result would be “a full retaliatoryresponse upon the Soviet Union.” Because international law defines a blockade as an act of war, Kennedy and his advisers decided to refer to the blockade as a quarantine. The United States wassupported by other members of the Organization of American States, an organization of nations in the western hemisphere that seek to cooperate on...

• Aristotle I INTRODUCTION Aristotle (384-322 BC), Greek philosopher and scientist, who shares with Plato and Socrates the distinction of being the most famous of ancient philosophers.

  succession of individuals. These processes are therefore intermediate between the changeless circles of the heavens and the simple linear movements of the terrestrialelements. The species form a scale from simple (worms and flies at the bottom) to complex (human beings at the top), but evolution is not possible. C Aristotelian Psychology For Aristotle, psychology was a study of the soul. Insisting that form (the essence, or unchanging characteristic element in an object) and matter (the commonu...