124 résultats pour "named"

• Uranus (planet) - astronomy.

  V COMPOSITION AND STRUCTURE A Interior of Uranus Uranus contains mostly rock and water, with hydrogen and helium (and trace amounts of methane) in its dense atmosphere. Astronomers believe that Uranus, likeNeptune, formed from the same material—principally frozen water and rock—that composes most of the planet’s moons. As the planet grew, pressures andtemperatures in the planet’s interior increased, heating the planet’s frozen water into a hot liquid. Uranus probably has a relatively small roc...

• Toys. I INTRODUCTION Toys, objects that serve as playthings for children. Although the

  clay. These readily available elements were also used to make more elaborate toys as human society advanced. Archaeologists have found primitive, handmade toys such as wooden or cloth dolls, clay marbles, and terracotta figures that date back thousands of years. In ancientEgypt, Greece, and Rome, people placed dolls or clay figures in the graves or tombs of children for them to play with in the afterlife. The yo-yo may seem like a 20th-century fad, but it actually dates back at least 2,500 years...

• Ancient Greece - history.

  Palace of KnossosThe ancient city of Knossos was a center of the Minoan civilization, an advanced society on Crete named after Minos, a legendaryCretan king. Skilled in such fields as engineering and architecture, the Minoans constructed the palace at Knossos in 1700 bc. Aserious fire at least three centuries later caused the collapse of the palace and foreshadowed the subsequent decline of the city.Wolfgang Kaehler Settlers had begun sailing from Asia Minor to Crete about 6000 BC because the i...

• Michael Jordan.

  playoffs the Bulls pushed the Pistons to seven games in the Eastern Conference Finals before losing again. As he grew older, Jordan made a concerted effort to help his teammates reach their own potential. The result of his renewed commitment to team-oriented play was theBulls’ first NBA championship title. After the 1990-91 season the Bulls swept the Pistons in the Eastern Conference Finals and then defeated the Los Angeles Lakers inthe NBA Finals. Jordan won the league MVP award for the second...

• Michael Jordan I INTRODUCTION Michael Jordan, born in 1963, American professional basketball player, considered by many to be the greatest player in basketball history.

  playoffs the Bulls pushed the Pistons to seven games in the Eastern Conference Finals before losing again. As he grew older, Jordan made a concerted effort to help his teammates reach their own potential. The result of his renewed commitment to team-oriented play was theBulls’ first NBA championship title. After the 1990-91 season the Bulls swept the Pistons in the Eastern Conference Finals and then defeated the Los Angeles Lakers inthe NBA Finals. Jordan won the league MVP award for the second...

• Asteroid - astronomy.

  Asteroids of the S type, related to the stony iron meteorites, make up about 15 percent of the total population of asteroids that can be seen from Earth. Much rarer arethe M-type objects, corresponding in composition to the meteorites known as “irons.” These objects are made up of an iron-nickel alloy and may represent the cores ofbodies that were large enough to differentiate into layers and to melt deep inside. Their rocky outer layers may have been removed by impacts with other asteroids . A...

• Space Exploration - astronomy.

  to produce 250,000 newtons (56,000 lb) of thrust. The Germans launched thousands of V-2s carrying explosives against targets in Britain and The Netherlands. Whilethey did not prove to be an effective weapon, V-2s did become the first human-made objects to reach altitudes above 80 km (50 mi)—the height at which outer spaceis considered to begin—before falling back to Earth. The V-2 inaugurated the era of modern rocketry. A2 Early Artificial Satellites During the years following World War II, the...

• James Monroe.

  In October 1786, Monroe resigned from Congress and settled with his bride in Fredericksburg, Virginia, where he began a law practice. His retirement from politics wasbrief. He was soon elected to the town council, and then once again to the Virginia legislature. However, Monroe never lost touch with national politics. He corresponded regularly with both Jefferson and Madison. In 1786 Monroe attended the AnnapolisConvention, which had been called to consider interstate commerce and other matters...

• James Monroe - USA History.

  In October 1786, Monroe resigned from Congress and settled with his bride in Fredericksburg, Virginia, where he began a law practice. His retirement from politics wasbrief. He was soon elected to the town council, and then once again to the Virginia legislature. However, Monroe never lost touch with national politics. He corresponded regularly with both Jefferson and Madison. In 1786 Monroe attended the AnnapolisConvention, which had been called to consider interstate commerce and other matters...

• African American History - U.

  In their day-to-day lives, slaves and servants shared similar grievances and frequently formed alliances. Advertisements seeking the return of slaves and servants whohad run away together filled colonial newspapers. When a slave named Charles escaped in 1740, the Pennsylvania Gazette reported that two white servants, a 'Scotch man' and an Englishman, escaped with him. Sometimes interracial alliances involved violence. During Bacon's Rebellion in 1676, slaves and servants took up armsagainst Na...

• Japanese Art and Architecture I INTRODUCTION Otani Oniji as Eitoku Otani Oniji as Eitoku is one of a number of woodblock prints created by the artist T? sh ?sai Sharaku between 1794 and 1795 during the Edo period in Japan.

  Jō mon PotteryJapan’s J ōmon people, who thrived from 10,000 to 300 bc, made distinctive pottery for boiling, steaming, and storing food.The pots were made with coils of clay and then decorated by rolling carved sticks, plant fibers, or braided cords over theouter surface. This cord-marked (j ōmon) pottery gave the culture its name.Scala/Art Resource, NY The first settlers of Japan, the J ōmon people (10,000?-300? BC), named for the cord markings that decorated the surfaces of their clay vessel...

• Rhythm-and-Blues Music I INTRODUCTION Tina Turner American singer Tina Turner began performing rhythm-and-blues music in a band led by her former husband, Ike Turner, in the 1960s.

  thousands of black Americans migrated from the rural South to Midwest, Northeast, and West Coast cities. In popular music, new styles were created to meet thechanging tastes of this demographic group, leading to the development of the urbane sounds of R&B. The profound sociological changes of the World War II period were accompanied by two significant technological developments: the invention of the electric guitar in thelate 1930s and the discovery of the German-invented tape recorder by the mu...

• Eagle - biology.

  States, is a member of this group found only in North America. It is named for its snow-white head. However, the name bald does not refer to a lack of feathers but comes instead from an outdated word meaning marked with white, as in piebald. The adult bald eagle is blackish brown, with a white head and tail. Its bill, legs, and feet are bright yellow. The bill, which is longer and heavier than the gray bill of golden eagles, is useful for piercing the skin of fish. Bald eagles vary in size....

• Virgo (Virgin) Greek One of the constellations; sixth sign of the Zodiac, named for the maiden Erigone, who hanged herself from a tree after finding the grave of her murdered father, Icarius of Attica.

• Styx, River Greek The principle river, or system of rivers, in Hades, the Greek Underworld (1); named for the goddess who carried the same name, Styx.

• Animation I INTRODUCTION Finding Nemo A clown fish named Marlin, left, and his friend Dory search for Marlin's son in the computer-animated feature film Finding Nemo (2003).

  Animator at WorkAnimators use computers for every part of the animation process, from creating a storyboard (a scene-by-sceneillustration of the plot) to imitating camera movement. This animator is creating a scene for the motion picture Antz(1998).C. Lepetit/Liaison Agency If an animator is basing the animation project on drawings, one of the most common animation techniques, he or she will first create a series of rough sketches thatoften will be filmed in a pencil test (simple line drawings...

• The Teachings of Muhammad During the early 7th century, a trader named Muhammad was meditating in a cave near Mecca in what is now Saudi Arabia, when he experienced a vision of the archangel Gabriel who declared Muhammad to be a prophet of God.

• Turbine.

  steam turbine has supplanted the reciprocating engine as a prime mover in large electricity-generating plants and is also used as a means of jet propulsion. Steam turbines are used in the generation of nuclear power and in nuclear ship propulsion. They operate with fuel-fired boilers for power generation. In cogenerationapplications requiring both process heat (heat used in an industrial process) and electricity, steam is raised at high pressure in the boiler and extracted from the turbineat th...

• 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...

• Fiji Islands - country.

  the early 1990s. Fishing is done mainly at a subsistence level, but commercial fishing is increasing. The country also receives income from the sale of licenses to foreignvessels to fish in Fiji’s exclusive economic zone. Industry, including mining, manufacturing, and construction, employs 34 percent of Fiji’s wage earners and, in 2006, contributed 26 percent of GDP. The governmentinstituted tax-free incentives in 1988 that created a flourishing garment industry. Ready-made garments are now the...

• 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...

• Solar System - astronomy.

  dwarf planets according to the IAU because they have rounded shapes from their own gravity but have not cleared their neighborhoods in space of other objects—bothorbit through the Kuiper Belt, a region beyond Neptune containing thousands of small icy bodies. Pluto and Eris are composed of layers of ice around a rocky core.Ceres qualifies as a dwarf planet because it is spherical but is found in the asteroid belt, a zone between the orbits of Mars and Jupiter that contains thousands of smallrocky...

• Athens (Greece) - geography.

  At the heart of the modern city is Syntagma (Constitution) Square, located east of the Acropolis. The square is bordered by the national Parliament Building, originally aroyal palace completed in 1842 for King Otto I. Nearby is the Tomb of the Unknown Soldier, which features a daily changing of the guard. Several of the city’s principalhotels as well the offices of major banks and airline companies also face the square. Behind the Parliament Building is the National Gardens, a public park that i...

• Madrid - geography.

  stores and offices on the first one or two levels. While many people rent their apartments, most own them and participate in cooperatives that maintain the building.Because living spaces are small by American standards, madrileños do most of their socializing in the streets, bars, restaurants, and parks of their neighborhoods. Onlya few very wealthy areas north of the city have single family houses with gardens and yards similar to those in American suburbs. Many of the newest neighborhoodsare c...

• United States History - U.

  and improved upon the designs of Arab sailing ships and learned to mount cannons on those ships. In the 15th century they began exploring the west coast ofAfrica—bypassing Arab merchants to trade directly for African gold and slaves. They also colonized the Madeira Islands, the Azores, and the Cape Verde Islands andturned them into the first European slave plantations. The European explorers were all looking for an ocean route to Asia. Christopher Columbus sailed for the monarchs of Spain in 149...

• United States History - U.

  and improved upon the designs of Arab sailing ships and learned to mount cannons on those ships. In the 15th century they began exploring the west coast ofAfrica—bypassing Arab merchants to trade directly for African gold and slaves. They also colonized the Madeira Islands, the Azores, and the Cape Verde Islands andturned them into the first European slave plantations. The European explorers were all looking for an ocean route to Asia. Christopher Columbus sailed for the monarchs of Spain in 149...

• Andrew Jackson.

  against a resolution praising President George Washington’s administration. Jackson claimed that Washington’s policy toward Native Americans was too lenient and thatJay’s Treaty, concluded with the British under Washington’s administration, was too damaging to American interests. After one year in the House, Jackson was elected to fill out an unexpired term in the U.S. Senate, the other chamber of the Congress of the United States. He servedfrom September 1797 to April 1798 and then retired to p...

• Andrew Jackson

  against a resolution praising President George Washington’s administration. Jackson claimed that Washington’s policy toward Native Americans was too lenient and thatJay’s Treaty, concluded with the British under Washington’s administration, was too damaging to American interests. After one year in the House, Jackson was elected to fill out an unexpired term in the U.S. Senate, the other chamber of the Congress of the United States. He servedfrom September 1797 to April 1798 and then retired to p...

• Andrew Jackson - USA History.

  against a resolution praising President George Washington’s administration. Jackson claimed that Washington’s policy toward Native Americans was too lenient and thatJay’s Treaty, concluded with the British under Washington’s administration, was too damaging to American interests. After one year in the House, Jackson was elected to fill out an unexpired term in the U.S. Senate, the other chamber of the Congress of the United States. He servedfrom September 1797 to April 1798 and then retired to p...

• Benjamin Harrison (1833-1901).

  homesteaders against pressure from the powerful railroads. He fought vigorously for Civil War veterans, supported high taxes on imports (called tariffs), payments todisabled and opposed the Chinese Exclusion Act, which stopped Chinese immigration to the U.S. for 10 years ( see Immigration: From 1840 to 1900 ). He also introduced 101 special pension and relief bills in six years. Harrison's name was well known by the Republican National Convention in 1884. In spite of this, Congressman and forme...

• Benjamin Harrison (1833-1901) - Histoire

  homesteaders against pressure from the powerful railroads. He fought vigorously for Civil War veterans, supported high taxes on imports (called tariffs), payments todisabled and opposed the Chinese Exclusion Act, which stopped Chinese immigration to the U.S. for 10 years ( see Immigration: From 1840 to 1900 ). He also introduced 101 special pension and relief bills in six years. Harrison's name was well known by the Republican National Convention in 1884. In spite of this, Congressman and forme...

• Sybolism of the Streetcar in a streetcar named desire

  Symbolism of the Streetcar It's tragically clear from the start of the play that Blanche Dubois' sexual history will be the cause of her downfall. And the names of the streetcars which she's ridden to find her way to Stella and Stanley's place have deeply symbolic meanings which reflect the trajectory of Blanche's unhappy life. First of all, Blanche hops aboard a streetcar headed for Desire. This is entirely appropriate, as Blanche's sexual desire is the governing emotion in her life, an...

• Inorganic Chemistry - chemistry.

  two electrically charged plates (positively charged top plate and negatively charged bottom plate). By measuring the difference in how fast these electron-laden oildrops fell when the metal plates were charged and uncharged, Millikan was able to calculate the total charge on each oil drop. Because each measurement was a wholenumber multiple of -1.60 × 10 -19 coulombs, Millikan concluded this was the charge carried by a single electron. Using Thomson’s electron charge-to-mass ratio, Millikan then...

• John Adams.

  the British authorities. The royal governor, aware of Adams's ability and growing influence, offered him the post of advocate general in the admiralty court. Adams declined the appointment,recognizing it as a bribe to bring him over to the side of the British government. A3 Adams and the Boston Massacre Adams generally supported the popular resistance to the British government, but he did not condone violence or mob action. Adams was greatly disturbed by theBoston Massacre of 1770, an incident...

• John Adams

  the British authorities. The royal governor, aware of Adams's ability and growing influence, offered him the post of advocate general in the admiralty court. Adams declined the appointment,recognizing it as a bribe to bring him over to the side of the British government. A3 Adams and the Boston Massacre Adams generally supported the popular resistance to the British government, but he did not condone violence or mob action. Adams was greatly disturbed by theBoston Massacre of 1770, an incident...

• John Adams - U.

  the British authorities. The royal governor, aware of Adams's ability and growing influence, offered him the post of advocate general in the admiralty court. Adams declined the appointment,recognizing it as a bribe to bring him over to the side of the British government. A3 Adams and the Boston Massacre Adams generally supported the popular resistance to the British government, but he did not condone violence or mob action. Adams was greatly disturbed by theBoston Massacre of 1770, an incident...

• Mars (planet) - astronomy.

  The Martian core is probably much like Earth’s, consisting mostly of iron, with a small amount of nickel. If other light elements, particularly sulfur, exist there as well, thecore may be larger than presently thought. From studying Earth’s magnetic field and core, scientists theorize that the motions of the liquid rock in Earth’s core generateits magnetic field. Mars does not have a significant magnetic field, so scientists believe that Mars’s core is probably solid. However, spacecraft data in...

• Ancient Greece.

  The first culture of Aegean civilization on the Greek mainland is named Mycenaean for the palace at Mycenae on the Pelopónnisos. Scholars call the Mycenaeans the“earliest Greeks” because they are the first people known to have spoken Greek. Mycenaean culture developed later than Minoan. The ancestors of the Mycenaean people wandered onto the mainland from the north and the east from about 4000 to2000 BC, mixing with the people already there, and by about 1400 BC the Mycenaeans had become very...

• Ancient Greece .

  The first culture of Aegean civilization on the Greek mainland is named Mycenaean for the palace at Mycenae on the Pelopónnisos. Scholars call the Mycenaeans the“earliest Greeks” because they are the first people known to have spoken Greek. Mycenaean culture developed later than Minoan. The ancestors of the Mycenaean people wandered onto the mainland from the north and the east from about 4000 to2000 BC, mixing with the people already there, and by about 1400 BC the Mycenaeans had become very...

• Ancient Greece - USA History.

  The first culture of Aegean civilization on the Greek mainland is named Mycenaean for the palace at Mycenae on the Pelopónnisos. Scholars call the Mycenaeans the“earliest Greeks” because they are the first people known to have spoken Greek. Mycenaean culture developed later than Minoan. The ancestors of the Mycenaean people wandered onto the mainland from the north and the east from about 4000 to2000 BC, mixing with the people already there, and by about 1400 BC the Mycenaeans had become very...

• George Bush.

  1986 it was folded into Harken Energy Corporation, another Texas petroleum company. Bush served as a consultant and a member of Harken’s board of directors. In 1987 Bush relocated his family to Washington, D.C., to assist his father in his bid to become president. He worked as a campaign adviser at his father’s nationalcampaign headquarters, serving as a liaison to the media and to conservative and Christian leaders. He was a trusted confidant of his father and mother, whosometimes dispatched Bu...

• George Bush - USA History.

  1986 it was folded into Harken Energy Corporation, another Texas petroleum company. Bush served as a consultant and a member of Harken’s board of directors. In 1987 Bush relocated his family to Washington, D.C., to assist his father in his bid to become president. He worked as a campaign adviser at his father’s nationalcampaign headquarters, serving as a liaison to the media and to conservative and Christian leaders. He was a trusted confidant of his father and mother, whosometimes dispatched Bu...

• California - geography.

  The Basin and Range province is an arid area of mountain ranges, basins, and deserts. In California it is represented primarily by parts of the Great Basin and SonoranDesert sections. Within the Great Basin lies Death Valley, whose lowest elevation, 86 m (282 ft) below sea level, is the lowest point in the Western Hemisphere. TheSonoran Desert section is characterized by numerous flat plains separated by low but rugged ranges. It includes the extensive Mojave, or Mohave, Desert. Also in thisprov...

• California - USA History.

  The Basin and Range province is an arid area of mountain ranges, basins, and deserts. In California it is represented primarily by parts of the Great Basin and SonoranDesert sections. Within the Great Basin lies Death Valley, whose lowest elevation, 86 m (282 ft) below sea level, is the lowest point in the Western Hemisphere. TheSonoran Desert section is characterized by numerous flat plains separated by low but rugged ranges. It includes the extensive Mojave, or Mohave, Desert. Also in thisprov...

• 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...

• Roman Mythology.

  Her temple on the Aventine Hill in Rome was a center for organizations of skilled craftspeople. According to tradition, in 509 BC the dynasty of Etruscan kings ended and the Roman Republic was founded. The republic was ruled by two chief magistrates, called consuls, who were elected by the people to one-year terms. During the time of the republic, the Capitoline temple became the most important public shrine of theRoman people and the focus of public worship. Each January, the new consuls offer...

• Optics I INTRODUCTION Mirage Mirages appear because differences in air temperature cause light rays from an object to take different paths to a viewer's eye.

  Refraction of Light by DiamondsThe brilliance of diamonds is due to their high refractive index, a measure of how strongly a transparent material bendslight rays. The skill of the gem-cutter lies in angling the facets of the stone so that each light ray entering it is reflectedmany times before it emerges again.Spencer Grant/Photo Researchers, Inc. The amount of light reflected depends on the ratio of the refractive indexes for the two media. The plane of incidence contains the incident ray and...

• William Shakespeare I INTRODUCTION William Shakespeare English playwright and poet William Shakespeare, who lived in the late 1500s and early 1600s, is regarded as the greatest dramatist in the history of English literature.

  Avon, Warwickshire, a prosperous town in the English Midlands. Based on this record and on the fact that children in Shakespeare’s time were usually baptized two orthree days after birth, April 23 has traditionally been accepted as his date of birth. The third of eight children, William Shakespeare was the eldest son of John Shakespeare, a locally prominent glovemaker and wool merchant, and Mary Arden, thedaughter of a well-to-do landowner in the nearby village of Wilmcote. The young Shakespeare...