11 résultats pour "mantle"

• Mickey Mantle.

• Plate Tectonics.

  ridges. The Mid-Atlantic Ridge is an underwater mountain range created at a divergent plate boundary in the middle of the Atlantic Ocean. It is part of a worldwidesystem of ridges made by seafloor spreading. The Mid-Atlantic Ridge is currently spreading at a rate of 2.5 cm per year (1 in per year). The mid-ocean ridges today are60,000 km (about 40,000 mi) long, forming the largest continuous mountain chain on earth. Earthquakes, faults, underwater volcanic eruptions, and vents, oropenings, along...

• Maris Breaks Home Run Record.

  Bothered by an injured hip, Mantle was removed from the lineup in mid-September with 54 long balls, leaving Maris alone in the home-run derby. The pressureincreased as a result of a July 17 ruling by Major League Baseball Commissioner Fred Frick that the record would have to be matched or bettered within 154 games,the number of games played in the 1927 season. In 1961, for the first time, American League teams played 162 games. Frick, a friend of Ruth's, said that if therecord was broken after 1...

• Volcano.

  before eruption. Very violent explosive eruptions are called Plinian eruptions, after Roman naturalist Pliny the Elder. These eruptions can last for several hours to daysand eject a large amount of pyroclastic material. Some volcanoes can produce much more energetic eruptions that eject materials farther from the vents because oftheir andesitic and dacitic composition. Andesitic and dacitic lava is generally thicker than basaltic lava. Stiff lava generally produces more-explosive eruptions. B No...

• 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...

• 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...

• É tude du comportement musical dans toutes les sociétés dites

  Les corrélats Dictionnaire de musique ethnologie ethnologie - Fondation de l'ethnologie scientifique Fétis François Joseph Sachs Curt Anthropologie ou musicologie Le concept d'ethnomusicologie associe deux termes, ethnologie et musicologie ; la spécificité de la discipline tient véritablement à la synthèse des deux approches. De l'histoire sont nés, sinon des « écoles », du moins trois grands foyers : Berlin, l'Amérique et l'Europe de l'Est. À Berlin, les études ethnomusicologiques se so...

• From Julius Caesar - anthology.

  Let but the commons hear this testament—Which, pardon me, I do not mean to read—And they would go and kiss dead Caesar's wounds,And dip their napkins in his sacred blood,Yea, beg a hair of him for memory,And, dying, mention it within their wills,Bequeathing it as a rich legacyUnto their issue.FIFTH PLEBEIAN : We'll hear the will. Read it, Mark Antony. ALL THE PLEBEIANS : The will, the will! We will hear Caesar's will. ANTONY : Have patience, gentle friends, I must not read it. It is not meet you...

• 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...

• Mazeroski's Home Run Wins the Series.

  Capitalizing on a break of their own the Yankees tied the score in the top of the ninth inning. With one run in and one out, smart baserunning by Mantle robbedPittsburgh of a double play and allowed pinch-runner Gil McDougald to score. The bottom of the ninth brought the Forbes faithful to its feet and Mazeroski to the plate. A steady but not spectacular hitter, the 24-year-old West Virginian hadearned more of a reputation for his sparkling fielding. Years later a noted statistician gave Maz...

• Igneous Rock.

  As a magma cools, the first crystals to form will be of minerals that become solid at relatively high temperatures (usually olivine and a type of feldspar known asanorthite). The composition of these early-formed mineral crystals will be different from the initial composition of the magma. Consequently, as these growing crystalstake certain elements out of the magma in certain proportions, the composition of the remaining liquid changes. This process is known as magmatic differentiation.Sometime...