1861 résultats pour "aïr"

• Artificial Satellite - astronomy.

  The first stage of a multistage rocket consists of rocket engines that provide a huge amount of force, or thrust. The first stage lifts the entire launch vehicle—with itsload of fuel, the rocket body, and the satellite—off the launch pad and into the first part of the flight. After its engines use all their fuel, the first stage portion of therocket separates from the rest of the launch vehicle and falls to Earth. The second stage then ignites, providing the energy necessary to lift the satellit...

• 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...

• Connecticut - geography.

  The state’s shoreline, when all the bays and inlets are taken into account, has a total length of 995 km (618 mi). The coastline is deeply indented by long estuaries androcky inlets, and there are many sandy beaches and stretches of tidal marsh. There are several good harbors along the coast, the most important of which is at NewHaven. A few small islands lie offshore in Long Island Sound. D Climate Connecticut has long, hot summers and cold winters. The climate does not vary greatly from place...

• Connecticut - USA History.

  The state’s shoreline, when all the bays and inlets are taken into account, has a total length of 995 km (618 mi). The coastline is deeply indented by long estuaries androcky inlets, and there are many sandy beaches and stretches of tidal marsh. There are several good harbors along the coast, the most important of which is at NewHaven. A few small islands lie offshore in Long Island Sound. D Climate Connecticut has long, hot summers and cold winters. The climate does not vary greatly from place...

• Asia - geography.

  the Himalayas, the world’s highest mountain system. The Pacific Ocean plate drifted westward, scraping along the Eurasian plate and slipping under its coastal edge. This created the islands of Japan, Taiwan, the Kurils, theRyūky ūs, and the Philippines. Southeast Asia lies at the intersection of the Eurasian, Pacific Ocean, and Indian Ocean plates. Over time the contact between these platescreated the mountain ranges of mainland Southeast Asia. The continued slow movement of the plates causes fr...

• Asia - history.

  the Himalayas, the world’s highest mountain system. The Pacific Ocean plate drifted westward, scraping along the Eurasian plate and slipping under its coastal edge. This created the islands of Japan, Taiwan, the Kurils, theRyūky ūs, and the Philippines. Southeast Asia lies at the intersection of the Eurasian, Pacific Ocean, and Indian Ocean plates. Over time the contact between these platescreated the mountain ranges of mainland Southeast Asia. The continued slow movement of the plates causes fr...

• Republic of Singapore - country.

  Singaporeans of Chinese and Indian ancestry live in small, nuclear families. Housing favors smaller families, as most units consist of small apartments in high-risebuildings. Western clothing is common, and foods reflect the Chinese, Malay, and Indian origins of the people. D Social Issues Since Singapore became an independent state in 1965, government policies have brought orderliness and efficiency to the country. Examples are supplanting slum andsquatter areas with high-rise public housing p...

• United Arab Emirates - country.

  III PEOPLE Most people living in the UAE (known as Emiris) are Arabs, a large majority of whom are city and town dwellers. A small number are nomadic (having no permanent home). The population has grown dramatically since the mid-1960s, largely due to the influx of oil workers to the country. Four-fifths of the UAE’s inhabitants areforeign workers and their families. The UAE also has a very youthful population, due to the large numbers of young foreign workers, a cultural preference for larg...

• Amphibian (animal) - biology.

  strong enough to kill potential predators. C Hearing, Vision, and Vocalizations Amphibians rely on their senses to find food and evade predators. Amphibians lack external ears but have well-developed internal ears. Hearing is most acute in frogs,which typically have a middle ear cavity for transferring sound vibrations from the eardrum, or tympanum, to the inner ear. Frogs and toads also use their keen hearingin communicating with one another. Using a true voice box, or larynx, and a large, exp...

• Kansas City (Missouri) - geography.

  Major institutions of higher education in Kansas City are a branch (established in 1929) of the University of Missouri, Avila College (1916), Rockhurst College (1910),DeVry Institute of Technology (Missouri) (1931), and the Kansas City Art Institute (1885). Schools in neighboring suburbs include Park University (1875), in Parkville,and William Jewell College (1849), in Liberty. Baptist, Nazarene, and Methodist theological schools are also located in the area. Midwest Research Institute, one of t...

• 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...

• Bahrain - country.

  A Religion Almost all Bahrainis and the majority of nonnatives are followers of Islam (Muslims). About 70 percent of all native Bahrainis belong to the Shia branch of Islam, whilethe remainder, including the ruling al-Khalifa clan, are adherents of the Sunni branch. Non-Muslims, including Hindus, Buddhists, Christians, and Jews, account for 15percent of the total population. High unemployment among the Shia population has caused considerable discontent on the part of this group toward the Sunni...

• 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...

• Lyndon B.

  A1 First Years in Office Johnson quickly made a two-fold reputation. He was a firm supporter of Roosevelt’s program, both domestic and foreign, and he was also a tireless worker on behalf ofthe voters he represented. Often the two activities coincided, as was the case when he helped to bring public power into Texas through the Rural ElectrificationAdministration and the Lower Colorado River Authority. He also secured funds for the building of dams, roads, and other public improvements in his di...

• Telecommunications.

  commonly referred to as wireless communications, use technologies such as cordless telephones, cellular radio telephones, pagers, and satellites. Wirelesscommunications offer increased mobility and flexibility. In the future some experts believe that wireless devices will also offer high-speed Internet access. C Wires and Cables Wires and cables were the original medium for telecommunications and are still the primary means for telephone connections. Wireline transmission evolved fromtelegraph...

• Czech Republic - country.

  enforcement of environmental regulations. Environmental considerations have also led some government officials to promote nuclear energy as a key source of powerfor the country’s future. The Czech Republic produces most of its energy by burning domestic coal. Much of the coal burned is low quality with a high ash and sulfur content—a key componentof acid rain—producing high levels of air pollution. Forests in the Czech Republic are among the most seriously affected by acid rain in all of Europe....

• Manitoba - Geography.

  E Plant Life Forests cover 66 percent of Manitoba. The main forest area is divided into the boreal forest and the mixed-wood forest. The boreal, or northern, forest containsconiferous (cone-bearing) trees, especially white and black spruce, balsam fir, and jack pine. South of the boreal forest is the mixed-wood forest, which contains conifers as well as such deciduous trees as white birch, aspen, poplar, and Manitoba maple. Prairie land is found in the southwest, where the natural vegetation i...

• Manitoba - Canadian History.

  E Plant Life Forests cover 66 percent of Manitoba. The main forest area is divided into the boreal forest and the mixed-wood forest. The boreal, or northern, forest containsconiferous (cone-bearing) trees, especially white and black spruce, balsam fir, and jack pine. South of the boreal forest is the mixed-wood forest, which contains conifers as well as such deciduous trees as white birch, aspen, poplar, and Manitoba maple. Prairie land is found in the southwest, where the natural vegetation i...

• Spanish Empire.

  Spain’s royal government quickly imposed its own officials, first to collect taxes and then to administer the colony. Its goal was to assert royal control over both settlersand indigenous peoples. In Spain the government established a House of Trade to supervise colonial affairs and to oversee, license, and tax all trade and commerce. Asthe royal government asserted more authority over colonial activities, Columbus lost effective power, and was eventually replaced by other colonial governors. Wi...

• Spanish Empire .

  Spain’s royal government quickly imposed its own officials, first to collect taxes and then to administer the colony. Its goal was to assert royal control over both settlersand indigenous peoples. In Spain the government established a House of Trade to supervise colonial affairs and to oversee, license, and tax all trade and commerce. Asthe royal government asserted more authority over colonial activities, Columbus lost effective power, and was eventually replaced by other colonial governors. Wi...

• Basketball.

  rebound. Play continues as the teams score and possession changes. A time-out, when the game is stopped for a certain amount of time, allows coaches to instructplayers or to develop a new game strategy. A Offense Playing offense is perhaps the most prominent part of playing basketball, as it allows players to demonstrate and improve upon individual skills necessary to beingsuccessful. Many of basketball's best players have exceptional talents on offense. Basic offensive skills are passing, ball...

• Belgium - country.

  European Union (EU) directives aimed at improving Belgium’s environmental conditions concern water treatment and water quality, both significant issues in such anindustrial center. Before these directives were issued, the Meuse River, a major source of drinking water, had become polluted from steel production wastes. Otherrivers were polluted with animal wastes and fertilizers. However, Belgium failed to meet EU targets set for the early 2000s for protecting its rivers from farm pollutionand for...

• Newfoundland and Labrador - Geography.

  Precipitation averages about 1,120 mm (about 44 in) yearly in Newfoundland. In Labrador precipitation varies from about 1,020 mm (about 40 in) in the southeast toabout 510 mm (about 20 in) in the extreme north. Heavy winter snowfalls are common, especially in Newfoundland. D Plant Life About one-third of Newfoundland is forested, and most of the rest of the island is made up of barren areas of reindeer moss and lichens. The forests consist almostentirely of conifers. The most important species...

• Newfoundland and Labrador - Canadian History.

  Precipitation averages about 1,120 mm (about 44 in) yearly in Newfoundland. In Labrador precipitation varies from about 1,020 mm (about 40 in) in the southeast toabout 510 mm (about 20 in) in the extreme north. Heavy winter snowfalls are common, especially in Newfoundland. D Plant Life About one-third of Newfoundland is forested, and most of the rest of the island is made up of barren areas of reindeer moss and lichens. The forests consist almostentirely of conifers. The most important species...

• South Dakota - geography.

  C1 Temperatures Average January temperatures are everywhere less than -4° C (24° F) and decrease to less than -12° C (10° F) in some northern sections. The January temperaturesin Sioux Falls range from -16° to -4° C (3° to 24° F). Nightime lows of -29° C (-20° F) occur during most winters. July averages are in the low and middle 20°s C (lowand middle 70°s F) throughout most of the state, and are somewhat lower in the Black Hills. The average temperature range in Sioux Falls in July is 17° to 30...

• South Dakota - USA History.

  C1 Temperatures Average January temperatures are everywhere less than -4° C (24° F) and decrease to less than -12° C (10° F) in some northern sections. The January temperaturesin Sioux Falls range from -16° to -4° C (3° to 24° F). Nightime lows of -29° C (-20° F) occur during most winters. July averages are in the low and middle 20°s C (lowand middle 70°s F) throughout most of the state, and are somewhat lower in the Black Hills. The average temperature range in Sioux Falls in July is 17° to 30...

• Chile - country.

  D Plant and Animal Life The indigenous plant life of Chile varies according to climatic zone. Plant life in the northern region includes brambles and cactus and has little variety. Here, theAtacama provides one of the best examples on Earth of an absolute desert. The more humid Central Valley supports several species of cacti, espino (a thorny shrub),grasses, and the Chilean pine, which bears edible nuts. Dense rain forests are located south of Valdivia with laurel, magnolia, false beech, and v...

• Idaho - geography.

  Idaho-Montana state line in the southern part of the Bitterroot Mountains. Consequently, nearly all the rivers in the state drain toward the Pacific. Most of Idaho lieswithin the drainage basin of the Columbia River system. The Snake River, which is the chief river in southern and central Idaho, follows a crescent-shaped course forabout 790 km (about 490 mi) across southern Idaho. It then swings northward along the Idaho state line and joins the Columbia River in Washington. Major tributariesof...

• Idaho - USA History.

  Idaho-Montana state line in the southern part of the Bitterroot Mountains. Consequently, nearly all the rivers in the state drain toward the Pacific. Most of Idaho lieswithin the drainage basin of the Columbia River system. The Snake River, which is the chief river in southern and central Idaho, follows a crescent-shaped course forabout 790 km (about 490 mi) across southern Idaho. It then swings northward along the Idaho state line and joins the Columbia River in Washington. Major tributariesof...

• 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...

• Les aires de civilisation

  citoyen du monde, d ' un pays , d ' une région n'est pas parado x al. Une même culture mondiale et une fascination grandissante pour le monde occidental se dégagent. Si le chinois est la langue la plus parlée, du fait du nombre, l'anglais arrive en deuxième place avec 470 millions de locuteur s. Langue diplomatique et adminis­ trative, elle devient un outil indispensable. • Les réseaux de communication (Internet) et la puissance de diffu...

• Les aires culturelles ?

• Les aires de civilisation ?

• Que symbolise l'Air ?

• Pôle et aires de puissance : Centre d' impulsion et inégalité de développement

  Définitions: Mégalopole: Population de plus de 10 millions d'habitants;. Ensemble de métropole est de ville étiré sur des centaines de km. Ces villes on des liensmajeurs grâce au réseaux de communication.Métropole: est une grande ville de plus d'1 million d'habitants, avec de grande fonction économique, financière d'innovation et de commandement. La métropole, doitamélioré dans un territoire de plus en plus vaste. 2.Des centres d'impulsion majeures. Pour qu'une métropole soit dynamique il faut 4...

• Chapitre XXII : Comment Gargantua employait le temps quand l'air était pluvieux ? (Rabelais)

  artisan est unique par la richesse unique qu'il possède. Ensuite, une communication avec la nature, par l'observation des plantes (l. 26 à 31), des animaux (l. 60-61),mais aussi des phénomènes physiques et chimiques (l 30-31 et 70 à 74). Puis, une communication avec l'art de la rhétorique, puisque les mots font aussi partie du réel: il s'agit alors d'être éloquent (et donc de connaître par exemple les spécialités des différents orateurs, avec l'énumération l. 20 à 25). D'autre part, les mots per...

• Gargantua – Chapitre XXII : Comment Gargantua employait le temps quand l’air était pluvieux

  permettent à l'enfant de mieux se construire. III. L'écriture du narrateur révèle sa joie de vivre, d'apprendre en s'amusant et d'instruire son lecteur en le divertissant a) Une espèce de sortilège de la parole Son amour de la vie et son exubérance se révèlent par les énumérations qui abondent tout le long du texte : avec les noms de métiers (l. 14 à 18), des espècesvégétales (l. 29-30), mais aussi des participes présents (l. 57 à 61), qui décrivent les activités de Gargantua en plein air. C'est...

• Le sacre (sur l'air de Malbrouck) Jersey, juillet 1853 - Victor HUGO

  Paris tremble, ô douleur, ô misère !Ainsi, dans leur poussière,Parlent les chenapans. - Ça, dit Robert Macaire,Paris tremble, ô douleur, ô misère !- Ça, dit Robert Macaire,Pourquoi ces cris de paons ? Pourquoi cette colère ?Paris tremble, ô douleur, ô misère !Pourquoi cette colère ?Ne sommes-nous pas rois ? Regardez, le saint-père,Paris tremble, ô douleur, ô misère !Regardez, le saint-père,Portant sa grande croix, Nous sacre tous ensemble,Ô misère, ô douleur, Paris tremble !Nous sacre tous ensem...

• AIR1, substantif masculin.

• Corrigé disponible Malgré ses airs de conte fantastique cette légende est vraie d'un bout à l'autre. Que pensez vous de...

  Corrigé disponible Malgré ses airs de conte fantastique cette légende est vraie d'un bout à l'autre. Que pensez vous de cette remarque ? Vérité ou leçon => pouvoir de persuasion. Par quels moyens les auteurs peuvent-ils convaincre leur lecteur, le faire adhérer à leur thèse ? Les œuvres de fictions peuvent-elles influencer le lecteur ? L’auteur peut-il avoir recours à la fiction pour toucher son lecteur, l’influencer ? Comment convaincre et comment la fiction peut-elle influencer le lecteur ? I...

• brouillard.

• Une tentative pour privatiser la compagnie Air Comores avec l'aide du financier mauricien Rowland Ashley à la réputation sulfureuse, en...

  Une tentative pour privatiser la compagnie Air Comores avec l'aide du financier mauricien Rowland Ashley à la réputation sulfureuse, en juin 1994, a précipité une crise gouvernementale. Contesté par l'opposition, par les députés du Rassemblement pour le renouveau démocratique (RDR, au pouvoir) et par le président de l'Assemblée nationale, Mohamed M'Changama, ce projet avait reçu le soutien du président Saïd Mohamed Djohar et du Premier ministre Mohamed Abdou Madi. Mais, soumis à de fortes pressi...

• Pierrots C'est, sur un cou qui, raide, émerge D'une fraise empesée idem, Urie face imberbe au cold-cream (1) Un air...

  Pierrots C'est, sur un cou qui, raide, émerge D'une fraise empesée idem, Urie face imberbe au cold-cream (1) Un air d'hydrocéphale (2)...

• Les baromètres (Sciences & Techniques)

• Définition: AÉROTHÉRAPIE, substantif féminin.

• Uruguay (1983-1984) Avec le retour des civils au pouvoir à Buenos Aires en décembre 1983, l'Uruguay a considéré que l'heure...

  Uruguay (1983-1984) Avec le retour des civils au pouvoir à Buenos Aires en décembre 1983, l'Uruguay a considéré que l'heure de la démocratie avait sonné: les Uruguayens voulaient faire sauter les derniers verrous imposés par le gouvernement du général Alvarez, qui entendait restaurer une démocratie au rabais à l'occasion des élections de novembre 1984. Depuis le rejet de la Constitution présentée par les militaires lors du referendum de novembre 1980, l'opposition au régime n'a cessé de s'ampli...

• LE MONDE OCCIDENTAL Issue de la Seconde Guerre mondiale, la notion de « monde occidental» s'applique à une aire géographique...

  LE MONDE OCCIDENTAL Issue de la Seconde Guerre mondiale, la notion de « monde occidental» s'applique à une aire géographique vaste et diverse.· Europe occidentale, Amérique du Nord, mais aussi des pays de Pacifique, japon ou Australie. L LES INSTITUTIONS AMÉRICAINES une fédéradon de 50 États L'HÉRITAGE HISTORIQUE ► le poids de l'Europe ■ Un rôle essentiel au XIX• siècle : berceau de la révolution industrielle· l'Europe peuple l'Amérique du Nord ou l'Australie et domine le m� (expansion colo...

• Sir Arthur Coningham

• Sujet d'invention - l'étranger, Albert Camus

• Article encyclopédique Pays enclavé d’Afrique, le Niger est constitué d’un vaste plateau cristallin (l’Aïr) et de deux bassins sédimentaires (vallée...

  Article encyclopédique Pays enclavé d’Afrique, le Niger est constitué d’un vaste plateau cristallin (l’Aïr) et de deux bassins sédimentaires (vallée du Niger et dépression du lac Tchad). L’essentiel du territoire relève du climat désertique, la population étant surtout concentrée au Sud, dans la zone sahélienne. L’ethnie principalement présente est celle des Haoussa, sédentaires, tandis qu’au Nord vivent des Touaregs, des Toubous et des Arabes pour une grande partie nomades. Les Peuls sont plus...