131 résultats pour "powerful"
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Imperialism
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INTRODUCTION
Imperialism, practice by which powerful nations or peoples seek to extend and maintain control or influence over weaker nations or peoples.
prudent to examine the economic impact of imperialism on a case-by-case basis. The political and psychological effects of imperialism are equally difficult to determine. Imperialism has proven both destructive and creative: For better or worse, it hasdestroyed traditional institutions and ways of thinking and has replaced them with the habits and mentality of the Western world. Contributed By:Michael MastandunoMicrosoft ® Encarta ® 2009. © 1993-2008 Microsoft Corporation. All rights reserved.
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Mesoamerica.
for cooking. In other regions, the earliest ceramics are more sophisticated technically and aesthetically. At around 1800 BC in the Pacific coastal region of Soconusco (in what is now southeastern Chiapas State, Mexico), the earliest pottery was very complex both in forms and decoration. It seems to have had a social function and beenused primarily for ritual feasting. III MAJOR CIVILIZATIONS Over a period of 3000 years, beginning in about 1500 BC, a number of important cultures emerged in M...
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Elizabeth I
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INTRODUCTION
Elizabeth I (1533-1603), queen of England and Ireland (1558-1603), daughter of Henry VIII and his second wife, Anne Boleyn.
Catholic challenges and plots persisted through much of Elizabeth’s reign, and Elizabeth reacted to them strongly. In 1569 a group of powerful Catholic nobles innorthern England rose in rebellion but were savagely repressed. The northern earls were executed, their property and those of their followers was confiscated, and theirheirs were deprived of their inheritance. In 1570 the pope excommunicated Elizabeth, sanctioning Catholic efforts to dethrone her. In 1571 an international conspiracywas u...
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Elizabeth I.
Catholic challenges and plots persisted through much of Elizabeth’s reign, and Elizabeth reacted to them strongly. In 1569 a group of powerful Catholic nobles innorthern England rose in rebellion but were savagely repressed. The northern earls were executed, their property and those of their followers was confiscated, and theirheirs were deprived of their inheritance. In 1570 the pope excommunicated Elizabeth, sanctioning Catholic efforts to dethrone her. In 1571 an international conspiracywas u...
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Elizabeth I .
Catholic challenges and plots persisted through much of Elizabeth’s reign, and Elizabeth reacted to them strongly. In 1569 a group of powerful Catholic nobles innorthern England rose in rebellion but were savagely repressed. The northern earls were executed, their property and those of their followers was confiscated, and theirheirs were deprived of their inheritance. In 1570 the pope excommunicated Elizabeth, sanctioning Catholic efforts to dethrone her. In 1571 an international conspiracywas u...
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Rocket.
the vacuum of space, however, demonstrated that this belief was not true. In fact, rockets produce more thrust in the vacuum of space than on Earth. Air pressure andfriction with the air reduce a rocket’s thrust by about 10 percent on Earth as compared to the rocket’s performance in space. B Thrust and Efficiency Thrust is a measurement of the force of a rocket, or the amount of “push” exerted backward to move a rocket forward. Thrusts vary greatly from rocket to rocket.Engineers measure thrust...
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Rocket - astronomy.
the vacuum of space, however, demonstrated that this belief was not true. In fact, rockets produce more thrust in the vacuum of space than on Earth. Air pressure andfriction with the air reduce a rocket’s thrust by about 10 percent on Earth as compared to the rocket’s performance in space. B Thrust and Efficiency Thrust is a measurement of the force of a rocket, or the amount of “push” exerted backward to move a rocket forward. Thrusts vary greatly from rocket to rocket.Engineers measure thrust...
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United Nations.
and programs to carry out its recommendations. It elects members to serve on certain agencies and programs, and it coordinates those programs through variouscommittees. B Security Council The Security Council is the most powerful body in the UN. It is responsible for maintaining international peace, and for restoring peace when conflicts arise. Its decisionsare binding on all UN members and have the force of international law. The Security Council has the power to define what is a threat to sec...
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Radio Astronomy - astronomy.
equivalent to the apparent angular dimensions of a basketball at the distance of the moon. In 1984, the U.S. government appropriated funds for the construction of aninstallation called the very long baseline array (VLBA), a network of 10 radio antennas spread from the U.S.-Canadian border to Puerto Rico and from Hawaii to the U.S.Atlantic coast. The VLBA is expected to provide angular resolutions in the range of 200-millionths of an arc second. Canada and Australia are both planning similarprogr...
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William Faulkner
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INTRODUCTION
William Faulkner
Twentieth-century American novelist William Faulkner wrote novels that explored the tensions between the old and the
new in the American South.
Faulkner’s “powerful and artistically unique contribution to the modern American novel.” He also wrote numerous short stories, many of the best of which werepublished in book form in Go Down, Moses (1942) and The Collected Stories (1950; Pulitzer Prize, 1951). In-between his fiction works, which until late in his career did not always pay well, Faulkner wrote screenplays for Hollywood; two of his more prominent scripts were for the motion pictures To Have and Have Not (1944) and The Big S...
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Assyria - USA History.
villages and cities were ransacked and razed, but no attempt was made to annex their territories. In the course of time this pattern of conquest changed, and the Assyrian rulers began to make Assyria the center of a new empire by incorporating the conquered landsinto their domain, although probably not according to a conscious plan. Toward the end of the 10th century BC, for example, Adad-nirari II annexed the Aramaean state centering on Nisibis, east of the Habur River. His son, Tukulti-Ninurt...
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American Revolution.
C1 The South Southern agriculture was founded on the cultivation of tobacco, wheat, and corn in Virginia, Maryland, and North Carolina, and of rice and indigo (a blue dye) in SouthCarolina and Georgia. There was a large demand for these crops in Europe. These crops were cultivated with the help of black slaves imported from Africa. The whiteplanter class in the South was the most powerful, both politically and economically. C2 The North Wheat was the main cash crop of the mid-Atlantic colonies...
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American Revolution - U.
C1 The South Southern agriculture was founded on the cultivation of tobacco, wheat, and corn in Virginia, Maryland, and North Carolina, and of rice and indigo (a blue dye) in SouthCarolina and Georgia. There was a large demand for these crops in Europe. These crops were cultivated with the help of black slaves imported from Africa. The whiteplanter class in the South was the most powerful, both politically and economically. C2 The North Wheat was the main cash crop of the mid-Atlantic colonies...
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American Literature: Poetry
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INTRODUCTION
Phyllis McGinley
American poet and author Phyllis McGinley composed light, witty verse, much of which deals with family life.
Taylor, a poet of great technical skill, wrote powerful meditative poems in which he tested himself morally and sought to identify and root out sinful tendencies. In“God's Determinations Touching His Elect” (written 1680?), one of Taylor’s most important works, he celebrates God's power in the triumph of good over evil in thehuman soul. All of Taylor’s poetry and much of Bradstreet’s served generally personal ends, and their audience often consisted of themselves and their family andclosest frie...
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Shark - biology.
Sharks have two-chambered hearts that are relatively small compared to the rest of their bodies. Blood flows from the heart to the gills, where it collects oxygen fromwater and then distributes it to the other organs and tissues. The small heart produces weak blood pressure, and many sharks must swim continuously to create themuscular contractions needed to circulate blood throughout their bodies. Most sharks are cold-blooded—that is, they do not generate heat by digesting food. Instead, the bod...
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Scramble for Africa.
additional territorial grabs. The most significant of these rules stated that colonial powers were obligated to notify each other when they claimed African territory.Further, subsequent “effective occupation” of the claimed area was necessary for the claim to remain valid. Through it all, as Europeans negotiated their rights toAfrican territory, not a single African was present. Once the conference was over, it was clear that a European Scramble for African territories was underway. Southern Afr...
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Boxing.
C Offensive Techniques To be effective, boxers must have an assortment of punches that are coordinated with their footwork. Less powerful punches often serve the important role of settingup the fighter’s chief “weapons,” as boxing analysts sometimes call a boxer’s main offensive skills. C1 Feinting Moving the hands or head to confuse an opponent is called feinting. A smart boxer will first test the opponent by trying different feints, noting the reaction to each onebefore deciding which will b...
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Warfare.
organizations as the League of Nations in 1920 and the United Nations in 1945, and détente (suggested for scaling down the cold war). See Arms Control. Modern antiwar sentiment and organized peace movements are derived in large part from the beliefs of religious sects such as the Society of Friends and the MennoniteChurch. The first peace societies in history were established in the U.S. in 1815, and since then pacifists have actively opposed wars and conscription, and promoted thecause of con...
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History of United States Business.
their lives. But the rewards were worth it; a few lucrative voyages and a merchant could buy a townhouse, a carriage, perhaps a summer retreat. The merchant couldclimb the social ladder and circulate among the powerful in this highly materialistic society. This prospect of riches and the honor that accompanied them made Americancolonists willing to engage in highly speculative enterprises, such as shipping flour to the West Indies or importing goods from England by the thousands without beingcer...
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Genghis Khan
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INTRODUCTION
Genghis Khan (1167?
died in August 1227, in his summer quarters in the district of Qingshui south of the Liupan Shan (Liupan Mountains) in Gansu, China. IV THE MONGOL FORCES Genghis Khan unleashed a seemingly invincible military force. Although usually outnumbered, his forces prevailed on the battlefield through absolute discipline, a well-understood chain of command, superior mobility, and innovative military tactics. The Mongol forces were organized into several formations of 10,000 horse-mounted soldiers, the...
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Genghis Khan.
died in August 1227, in his summer quarters in the district of Qingshui south of the Liupan Shan (Liupan Mountains) in Gansu, China. IV THE MONGOL FORCES Genghis Khan unleashed a seemingly invincible military force. Although usually outnumbered, his forces prevailed on the battlefield through absolute discipline, a well-understood chain of command, superior mobility, and innovative military tactics. The Mongol forces were organized into several formations of 10,000 horse-mounted soldiers, the...
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Genghis Khan - History.
died in August 1227, in his summer quarters in the district of Qingshui south of the Liupan Shan (Liupan Mountains) in Gansu, China. IV THE MONGOL FORCES Genghis Khan unleashed a seemingly invincible military force. Although usually outnumbered, his forces prevailed on the battlefield through absolute discipline, a well-understood chain of command, superior mobility, and innovative military tactics. The Mongol forces were organized into several formations of 10,000 horse-mounted soldiers, the...
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Mfecane.
The Kololo, a Sotho people, entered the same region in the early 1820s after being driven from their homeland south of the Vaal River by the Ngwane-Hlubi wars. In1823 the Kololo clashed with the Griqua and turned north into the Kalahari Desert. They eventually crossed the Zambezi and finally settled in what is now westernZambia after overthrowing the powerful Lozi Kingdom in 1840. D Founding of the Sotho Nation The Ngwane-Hlubi wars also drove loosely organized Sotho communities north into the...
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Laser.
their atoms into laser light. Consequently, they are the most powerful continuous wave (CW) lasers—that is, lasers that emit light continuously rather than in pulses. C Liquid Lasers The most common liquid laser media are inorganic dyes contained in glass vessels. They are pumped by intense flash lamps in a pulse mode or by a separate gas laserin the continuous wave mode. Some dye lasers are tunable, meaning that the color of the laser light they emit can be adjusted with the help of a prism lo...
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Feudalism
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INTRODUCTION
Feudalism, contractual system of political and military relationships existing among members of the nobility in Western Europe during the High Middle Ages.
lord”; thus, it was not rebellion for a subvassal to fight against his lord’s lord. In England, however, William the Conqueror and his successors required their vassals’vassals to take oaths of fealty to them. B Duties of a Vassal Military service in the field was basic to feudalism, but it was far from all that the vassal owed to his lord. When the lord had a castle, he might require his vassals togarrison it, a service called castle-guard. The lord also expected his vassals to attend his cour...
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Coral Reef.
sensitive to particles of mud or sediment settling on them, which means that corals rarely grow close to rivers or other sources of sediment. In the sea, light is filteredout by depth, so reef-building corals can only grow in relatively shallow water. Even in the clearest oceans few reef-building corals grow below a depth of 80 to 100 m(260 to 328 ft). Although corals need nutrients, they cannot thrive in areas where there are large amounts of nutrients. Typically, microscopic organisms in the p...
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Reformation .
Saxony, he made war against the Schmalkaldic League, a defensive association of Protestant princes. The Roman Catholic forces were successful at first. Later,however, Duke Maurice went over to the Protestant side, and Charles V was obliged to make peace. The religious civil war ended with the religious Peace of Augsburg in1555. Its terms provided that each of the rulers of the German states, which numbered about 300, choose between Roman Catholicism and Lutheranism and enforcethe chosen faith up...
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Native American Art.
folding, braiding or weaving, could also be sewn onto the hide. The production of decorated clothing and bags increased after contact with Europeans as a greater variety of textiles and other materials became available throughtrade. Imported glass beads inspired native women, who quickly adapted quillwork techniques for the creation of beaded apparel. European curvilinear and floraldesigns of the 19th century proved as meaningful for the native women who worked with them as they were for the non...
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Whale - biology.
III BEHAVIOR OF WHALES Studies of whales in captivity have taught scientists much about the complex social behavior of whales. Since the late 1980s, advances in the use of satellite trackingsystems have also broadened opportunities for scientists to observe how whales behave in the wild. A Swimming and Diving Whales swim by making powerful up-and-down movements of the tail flukes, which provide thrust. The power comes from body muscles that flex the lower spine upand down in a wavelike motion...
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Global Warming.
some of the warming influence of increasing greenhouse gases. A1 Carbon Dioxide Carbon dioxide is the second most abundant greenhouse gas, after water vapor. Carbon dioxide constantly circulates in the environment through a variety of naturalprocesses known as the carbon cycle. It is released into the atmosphere from natural processes such as eruptions of volcanoes; the respiration of animals, whichbreathe in oxygen and exhale carbon dioxide; and the burning or decay of plants and other organic...
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Congress of the United States.
senator, a person must be at least 30 years old, a citizen for nine years, and a resident of the state from which he or she is elected. Most members of Congress haveserved in state legislatures, city councils, or other elected bodies. See United States Senate: Campaigning for the Senate ; United States House of Representatives: Campaigning for the House. The 435 House seats are divided among the states in proportion to each state’s population. Every state is guaranteed at least one seat. State...
- pantheon Greek and Roman In mythology, pantheon refers to all the gods of a people, particularly those considered to be the most prominent or most powerful.
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Adolf Hitler
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INTRODUCTION
Adolf Hitler (1889-1945), German political and military leader and one of the 20th century's most powerful dictators.
A Economic Collapse At the end of World War I, the Allies (those countries who had fought against Germany) had demanded that Germany pay reparations—that is, payments for wardamages. The government refused to pay all that was demanded by the Allies. When Germany failed to pay enough, France and Belgium occupied the coal mines in theRuhr industrial area in west central Germany in January 1923. In protest, the German government halted all reparation payments and called for passive resistance by a...
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Arab Music
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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...
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Central Processing Unit.
Development of the computer chip started in 1958 when Jack Kilby of Texas Instruments demonstrated that it was possible to integrate the various components of aCPU onto a single piece of silicon. These computer chips were called integrated circuits (ICs) because they combined multiple electronic circuits on the same chip.Subsequent design and manufacturing advances allowed transistor densities on integrated circuits to increase tremendously. The first ICs had only tens of transistorsper chip com...
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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...
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Public Education in the United States.
opportunities for them to break out from whatever social or economic circumstances constrained their development. IV HIGHER EDUCATION During the 20th century participation in higher or postsecondary education in the United States increased as dramatically as it did in American high schools. At thebeginning of the century about 2 percent of Americans from the ages of 18 to 24 were enrolled in a college. There were fewer than 1,000 colleges then, with enrollmenttotaling about 157,000 students. N...
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Swimming.
the swimmer and the pinky finger should enter the water first. At the same time, the swimmer moves the left arm through the water below the left side of the body.Once in the water, the right arm begins pulling the swimmer forward by bending at the elbow. At the same time the swimmer holds the left arm straight as it reachesthe hip and lifts it out of the water. As the right arm continues to pull, the swimmer rotates slightly onto the right side and swings the left arm up above the head. As the s...
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United States Government.
Article II establishes an executive department headed by a president and vice president. The article further describes the powers of the offices, the manner of election,and the qualifications for office. Of special significance is the president’s constitutional role as commander of the nation’s armed forces, which assures civilian controlover the military. Because the president is the head of the armed forces and only Congress can declare war, the authority of the military is diffused and its po...
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Archaeology.
Prehistoric archaeology is practiced by archaeologists known as prehistorians and deals with ancient cultures that did not have writing of any kind. Prehistory, a term coined by 19th-century French scholars, covers past human life from its origins up to the advent of written records. History—that is, the human past documented insome form of writing—began 5000 years ago in parts of southwestern Asia and as recently as the late 19th century AD in central Africa and parts of the Americas. Becaus...
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Middle Ages .
Saints were very important in Late Antiquity. They were considered both models of virtue and powerful miracle workers. One of the most well-known saints of the periodwas Saint Anthony. Anthony gave away all his possessions and left his hometown in Egypt to live alone in the desert and pray. Anthony was one of the first Christianmonks. The word monk comes from a term meaning 'alone.' Gradually Anthony attracted followers, and he eventually became the center of a whole community of monks who wis...
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World War I .
and troops to Europe from the United States and other overseas sources. In 1914 Britain implemented a sea blockade of Germany to prevent the delivery of importssuch as food and war materials. The same year, Germany began using submarines to disrupt Allied seaborne traffic and prevent supplies from reaching Britain. In 1915Germany instituted a submarine blockade around Britain. From February 1915 to September 1915 and again in 1917, Germany used unrestricted submarine warfare,sinking ships withou...
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France - country.
In both the Paris and Aquitaine basins, fertile soils derived from limestone and wind-deposited dust, called loess, have supported prosperous agriculture since ancienttimes. Other lowlands in France are scattered and relatively small. They include the Alsace Plain in the east, bordering Germany, the valley of the Rhône River in thesoutheast, and the Languedoc Plain along the Mediterranean coast. A2 Uplands France contains several regions of uplands, the worn down remains of ancient mountain sys...
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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...
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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...
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English Literature
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INTRODUCTION
English Literature, literature produced in England, from the introduction of Old English by the Anglo-Saxons in the 5th century to the present.
evident. That feature is typical of other Old English literature, for almost all of what survives was preserved by monastic copyists. Most of it was actually composed byreligious writers after the early conversion of the people from their faith in the older Germanic divinities. Sacred legend and story were reduced to verse in poems resembling Beowulf in form. At first such verse was rendered in the somewhat simple, stark style of the poems of Caedmon, a humble man of the late 7th century who w...
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Jaguar (animal) - biology.
scientists have speculated that the jaguar’s robust canine teeth and enormously powerful bite developed specifically to pierce the armor of these reptiles. After killing a large animal, a jaguar will usually drag the carcass into dense cover before beginning to eat. If the kill is made in an open area, jaguars often drag theirprey for considerable distances. On one occasion, a jaguar killed a cow on the edge of a river and swam 790 m (2,600 ft) across the river carrying the cow. Unlike the other...
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Michelangelo
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INTRODUCTION
Michelangelo (1475-1564), Italian painter, sculptor, architect, and poet whose artistic accomplishments exerted a tremendous influence on his contemporaries and on
subsequent European art.
(17 ft) tall, was carved from a block of stone that another sculptor had left unfinished. Michelangelo drew on the classical tradition in depicting David as a nude,standing with his weight on one leg, the other leg at rest ( see contrapposto). This pose suggests impending movement, and the entire sculpture shows tense waiting, as David sizes up his enemy and considers his course of action. While David reveals Michelangelo's expert knowledge of anatomy (he had been dissecting corpses for about...
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Michelangelo.
(17 ft) tall, was carved from a block of stone that another sculptor had left unfinished. Michelangelo drew on the classical tradition in depicting David as a nude,standing with his weight on one leg, the other leg at rest ( see contrapposto). This pose suggests impending movement, and the entire sculpture shows tense waiting, as David sizes up his enemy and considers his course of action. While David reveals Michelangelo's expert knowledge of anatomy (he had been dissecting corpses for about...
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Cambodia - country.
The population of Cambodia is 14,241,640 (2008 estimate). Population growth per year is estimated at 1.8 percent, one of the highest rates in Asia. The rate of infantmortality is also high. The population density is 81 persons per sq km (209 per sq mi), with the densest concentrations on the heavily cultivated central plain. Themountainous regions of the country, where malaria is widespread, are thinly populated, as are the poorly watered northern provinces. During the late 1970s, under thebruta...