180 résultats pour "sun"
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Sun - astronomy.
A The Sun’s Place in the Milky Way The Milky Way Galaxy contains about 400 billion stars. All of these stars, and the gas and dust between them, are rotating about a galactic center. Stars that arefarther away from the center move at slower speeds and take longer to go around it. The Sun is located in the outer part of the galaxy, at a distance of 2.6 × 10 17 km (1.6 × 10 17 mi) from the center. The Sun, which is moving around the center at a velocity of 220 km/s (140 mi/s), takes 250 million y...
- Sun Yat-sen ou Sun Zhongshan
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SUN YAT-SEN
"' -~ :::, Sun Vat-sen 2o3 dent de la République chinoise après le succès de la révolution en 1911. Sun Vat-sen dirige également le Kuo mintang (Parti national du peuple), qu'il a fondé en 1900. 4 Rapidement supplanté à la tête de I'Ëtat par son rival conservateur Yuan Shlh-k'al (que soutiennent les puissan ces européennes et les Ëtats-Unis), Sun Vat-sen (1913) est contraint à la clandestinité, jusqu'au moment où la forma tion d'un gouvernem...
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THE SUN AND ITS FAMILY
period of revolution round the Sun, a period we call a year. 2.The seasons The Earth does not spin upright in space as it travels around the Sun. That is, its axis is not perpendicular to the plane of its orbit. Its axis is tilted at an angle of 23 and a half degrees. The Earth's axis is always tilted in the same direction in space. This means that, as the Earth travels each year around the Sun, the axis is tilted alternately towards, then away from the Sun. Naturally, when the northern hemi...
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Les Etats-Unis: Le dynamisme de la « Sun Belt » ?
Francisco en 1989). 3. L'abondance des ressources du sous-solComme d'autres régions des États-Unis, la « Sun Belt » est dotée de ressources du sous-sol : l'or californien n'estsans doute plus qu'un mythe, mais l'or noir, c'est-à-dire le pétrole et le gaz naturel l'ont remplacé. Les gisementscaliforniens écoulent une production bien moindre que ceux du mid-continent et surtout des bords du golfe duMexique (Texas, Louisiane). Ils fournissent aussi le soufre dans les Etats-Unis ont besoin. D'...
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1925: Sun Yat-sen, le « père » de la révolution chinoise, est mort
Sun Vat-sen peu avant sa mort, en 1925 Sun Yat .. sen, le « père » de la révolution chinoise, est mort Le 12 mars 1925, Sun Vat-sen, docteur en médecine, savant et partisan d'une politique progressiste, meurt à l'âge de 58 ans. D'origine paysanne, il est le premier président de la Républ ique chinoise (1912). Après sa mort, la dislocation de son pays se poursuit. S un Yat-sen est influencé très tôt par les contacts qu'il noue avec le monde oc...
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Sun Yat-sen
troupes de mercenaires des seigneurs de la guerre chefs militaires puissants qui exercent leur pouvoir dans certaines provinces depuis la chute de la monarchie. Alors qu'il prépare une campagne militaire dans le Nord contre ces potentats, Sun Yat-sen succombe à un cancer du foie. 2
- Sun Yat-sen ou Sun Zhongshan, surnommé Souen wen Homme d'Etat chinois
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La «Sun Belt» des États-Unis ?
Francisco en 1989). 3. L'abondance des ressources du sous-solComme d'autres régions des États-Unis, la « Sun Belt » est dotée de ressources du sous-sol : l'or californien n'estsans doute plus qu'un mythe, mais l'or noir, c'est-à-dire le pétrole et le gaz naturel l'ont remplacé. Les gisementscaliforniens écoulent une production bien moindre que ceux du mid-continent et surtout des bords du golfe duMexique (Texas, Louisiane). Ils fournissent aussi le soufre dans les Etats-Unis ont besoin. D'...
- Sun Yat-sen o u Sun Zhongshan.
- Nicolaus Copernicus I INTRODUCTION Nicolaus Copernicus (1473-1543), Polish astronomer, best known for his astronomical theory that the sun is at rest near the center of the universe, and that the earth, spinning on its axis once daily, revolves annually around the sun.
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La Sun Belt
hydrocarbures, les industries pétrochimiques et de Techniques de pointe (biotechnologies, aérospatiale). De même, celle-ci est soutenue par un réseau dense d'universités. En plus, la culture du Texas reflète des influences et des héritages multiples : hispaniques, afro-Américains, anglo-saxons et amérindiens. Ainsi, l'identité de l'État repose sur un folklore vivant (country, rodéo, western). D’ailleurs, l’image mythique du cow-boy est préservée. Et, leurs parcs naturels sont connus...
- Sun Belt.
- Sun Yat-sen
- Sun Yat-sen
- Sun Yatsen - Geschichte.
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- Sun Microsystems, Inc.
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Louis XIV
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INTRODUCTION
Louis XIV (1638-1715), king of France (1643-1715), known as the Sun King.
he could defend against attack from his enemies. In the first instance, Louis worked to tighten central control over the array of departments, regions, and duchies that together made up France. To this end, he revivedthe use of regional intendants, officials who were sent to the provinces with instructions to establish order and effective royal justice. Although agents of the centralgovernment, intendants worked closely with the local nobility and legal institutions to establish efficient admini...
- Sun Yat-sen
- Sun Yat-sen - biography.
- Sun Ra - jazz.
- Sun (The).
- Sun Dance
- Sun, The - médias & information.
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- YANG SUN. Personnage de la Bonne Ame de Sé Tchouan
- Sun Ra (Herman Sonny Blount.
- Phaeton Greek Son of Helios, the sun god, and the Nymph Clymene.
- Sol Roman In the earliest Roman religion, a sun god worshiped by the Sabines, who introduced the cult of Sol to the Roman people when a Sabine king ruled over that city.
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Sun Yat-sen ou Sun Zhongshan, surnommé Souen wen
Homme d’Etat chinois
* 12.11.1866, Xiangshan, province du Guangdong
+ 12.3.1925, Pékin...
Sun Yat-sen ou Sun Zhongshan, surnommé Souen wen Homme d’Etat chinois * 12.11.1866, Xiangshan, province du Guangdong + 12.3.1925, Pékin Fils de paysan élevé dans le protestantisme, médecin de formation, Sun Yat-sen est l’un des chefs de file de l’opposition républicaine après la défaite de la Chine contre le Japon en 1894-1895. En 1894, il fonde l’Association pour le redressement de la Chine (Xingzohnghui), et tente sans succès une insurrection contre le pouvoir en place. Forcé de s’exiler, il f...
- Sun Yat-sen et le Kouomintang.
- Hyperion (The One Above) Greek One of the Titans; son of Uranus and Gaia; father with Theia of Helios, Selene, and Eos (the Sun, the Moon, and Dawn).
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L'art de la Guerre-Sun Tzu
guerres de Douglas Porch peut-on étendre sa thèse sur la bonne guerre coloniale à la bonne guerre ? Oui, selon Sun Tse. Ceux qui dominent les principes de la guerre gagnent rapidement, ne négligent rien, savent que rien ne fatigue plus l’état que la guerre. Toujours avoir plus de ressources (BEAUCOUP plus) que l’ennemi, « faites-le périr en détail » (presse pocket 1993, p. 20), l’irriter pour qu’il tombe dans un piège. Bien répartir les gains, bien traiter les prisonniers (pour...
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- People in the Sun - - art.
- People in the Sun [Edward Hopper] - étude du tableau.
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Sun Yat-sen
par Michel Cartier
Maître-assistant à l'École Pratique des Hautes Études
Personnage
par Michel Cartier Maître-assistant à l'École Pratique des Hautes Études
- Helios (Helius) (The sun god) Greek Helios was husband to Rhodos, the Nymph of the island of Rhodes, which he chose as his favored abode.
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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...
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Sun Yat-sen
étrangers qui pillaient le pays, fonder une ré publique et, enfin, redistribuer les terres aux paysans de façon plus équitable. Un an après, l'Alliance . révolutionnaire comptait dix mille membres en Asie du Sud-Est. Ex pulsé du Japon, Sun Yat-sen fit une tournée des communautés chinoises d'Asie, d'Euro pe et des Etats-Unis. Comme le peuple chi nois était de plus en plus favorable à une ré volution, le régime impérial, corrompu et in capable,...
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Comet - astronomy.
may exceed the planet Jupiter in size, however. Observations from telescopes on Earth and in space indicate that most of the gases in the coma and tail of a comet are fragmentary molecules, or radicals, of the mostcommon elements in space: hydrogen, carbon, nitrogen, and oxygen. The radicals, for example, of CH, NH, and OH may be broken away from the stable molecules CH 4 (methane), NH 3 (ammonia), and H 2O (water), which may exist as ices or more complex, very cold compounds in the nucleus. Al...
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Sun Yat-sen
UNE FOl SANS FAILLE DANS LE DESTIN NATIONAL L'Immense popularité dont jouit Sua Yllf-se. en Chine s'explique par le rôle primordial qu'Il a joué lors de la révolution de 1911 , qui a mis à terre un régime croulant sous les traditions millénaires . Ardent défenseu r de la cause nationale, de l'intégrité du pays et de sa souveraineté, Sun Vat-sen reste celui qui a contribué à renverser la dynastie mandchoue , régnant depuis 1644 sur un empire âgé d...
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History of Astronomy - astronomy.
Egypt, the Sun was directly overhead at noon. On the same date and time in Alexandria, Egypt, the Sun was about 7 degrees south of zenith. With simple geometryand knowledge of the distance between the two cities, he estimated the circumference of the Earth to be 250,000 stadia. (The stadium was a unit of length, derivedfrom the length of the racetrack in an ancient Greek stadium. We have an approximate idea of how big an ancient Greek stadium was, and based on that approximationEratosthenes was...
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Star (astronomy) - astronomy.
absorbing the missing colors of light. For example, the set of dark lines made by hydrogen includes a dark red line, the set of dark lines made by sodium includes a pairof dark yellow lines, and the set of dark lines made by iron includes lines of nearly every color. Each element in the gaseous outer layer of a star produces its ownparticular pattern of dark spectrum lines, depending on the temperature and pressure of the gas. Astronomers have observed spectrum lines, or spectra, for hundredsof...
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Earth (planet).
Milky Way to complete one revolution around the Galaxy’s center. Earth’s axis of rotation is inclined (tilted) 23.5° relative to its plane of revolution around the Sun. This inclination of the axis creates the seasons and causes the height of the Sun in the sky at noon to increase and decrease as the seasons change. The Northern Hemisphere receives the most energy from the Sun when it is tiltedtoward the Sun. This orientation corresponds to summer in the Northern Hemisphere and winter in the S...
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Earth (planet) - astronomy.
Milky Way to complete one revolution around the Galaxy’s center. Earth’s axis of rotation is inclined (tilted) 23.5° relative to its plane of revolution around the Sun. This inclination of the axis creates the seasons and causes the height of the Sun in the sky at noon to increase and decrease as the seasons change. The Northern Hemisphere receives the most energy from the Sun when it is tiltedtoward the Sun. This orientation corresponds to summer in the Northern Hemisphere and winter in the S...
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Relativity - astronomy.
beta, for example, might be as large as 0.5, and the mass of the electron doubled. The mass of a rapidly moving electron could be easily determined by measuring thecurvature produced in its path by a magnetic field; the heavier the electron, the greater its inertia and the less the curvature produced by a given strength of field ( see Magnetism). Experimentation dramatically confirmed Einstein's prediction; the electron increased in mass by exactly the amount he predicted. Thus, the kinetic ener...
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Ulysses (spacecraft) - astronomy.
Ulysses was also used to study comet Hale-Bopp, which was first seen in 1995. Hale-Bopp travels an unusual path at a large angle to the ecliptic, and the trajectory ofUlysses was well suited to capture images of Hale-Bopp as it made its way around the Sun. Astronomers paid particular attention to Hale-Bopp’s plasma tail—a plume ofionized, or electrically charged, gas within the main tail that streams away from the comet when it approaches within about 1.5 AU from the Sun. They found that theplas...
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Jupiter (planet) - astronomy.
Beneath the supercritical fluid zone, the pressure reaches 3 million Earth atmospheres. At this depth, the atoms collide so frequently and violently that the hydrogenatoms are ionized—that is, the negatively charged electrons are stripped away from the positively charged protons of the hydrogen nuclei. This ionization results in asea of electrically charged particles that resembles a liquid metal and gives rise to Jupiter’s magnetic field. This liquid metallic hydrogen zone is 30,000 to 40,000 k...
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Bear - biology.
programs sponsored by zoos or other breeding centers have attempted to breed giant pandas in captivity, although most of these programs have proved unsuccessful.Among the difficulties faced by captive breeders has been the problem of encouraging a female giant panda to mate with a selected male during the two to three daysof the year when she is most fertile, a period known as estrus. B Spectacled Bear Creamy-white rings surrounding the eyes give the spectacled bear its name. Its shaggy coat of...
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Egyptian Art and Architecture - USA History.
The kings of the 1st Dynasty (2920 BC-2770 BC) were buried in the cemetery of their ancestors at Abydos in southern Egypt. Their burial sites were built of mud brick (bricks baked in the sun) and consisted of two parts: a tomb in the desert where the king was buried, and a rectangular funerary enclosure at the desert's edge, whererituals were performed. A pair of stone slabs called stelae marked the tombs and bore the name of the royal occupant. In the 2nd Dynasty (2770 BC-2649 BC), most r...
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Venus (planet) - astronomy.
level winds circle the planet at 360 km/h (225 mph), making a complete rotation in only four days. These winds are said to super-rotate because they travel muchfaster than the rotation of the planet itself. These high-speed winds cover the planet completely, blowing toward the west at virtually every latitude from equator topole. The motions of descending probes, however, have shown that the bulk of Venus’s tremendously dense atmosphere, closer to the planet’s surface, is almoststagnant. From th...