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Lefèvre-Utile Point
Lefèvre-Utile Point () is a point west of Curie Point along the north side of Doumer Island, in the Palmer Archipelago, Antarctica. It was discovered and named by the French Antarctic Expedition, 1903–05, under Jean-Baptiste Charcot Jean-Baptiste Étienne Auguste Charcot, better known in France as Commandant Charcot, (15 July 1867 in Neuilly-sur-Seine near Paris – 16 September 1936 at sea (30 miles north-west of Reykjavik, Iceland), was a French scientist, medical doctor .... References External links * Headlands of the Palmer Archipelago {{PalmerArchipelago-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Curie Point (Antarctica)
In physics and materials science, the Curie temperature (''T''C), or Curie point, is the temperature above which certain materials lose their magnet, permanent magnetic properties, which can (in most cases) be replaced by magnetization, induced magnetism. The Curie temperature is named after Pierre Curie, who showed that magnetism is lost at a critical temperature. The force of magnetism is determined by the magnetic moment, a dipole moment within an atom that originates from the angular momentum and Spin (physics), spin of electrons. Materials have different structures of intrinsic magnetic moments that depend on temperature; the Curie temperature is the critical point at which a material's intrinsic magnetic moments change direction. Permanent magnetism is caused by the alignment of magnetic moments, and induced magnetism is created when disordered magnetic moments are forced to align in an applied magnetic field. For example, the ordered magnetic moments (ferromagnetism, fer ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Doumer Island
Doumer Island is an island long and wide, surmounted by a snow-covered pyramidal peak, , lying between the south portions of Anvers Island and Wiencke Island in the Palmer Archipelago of Antarctica. It was first seen by the Belgian Antarctic Expedition, 1897–99, under Adrien de Gerlache. It was resighted and charted by the French Antarctic Expedition, 1903–05, under Jean-Baptiste Charcot, who named it for Paul Doumer, President of the French Chamber of Deputies and later President of France. Yelcho Station Chile's summer Yelcho Station, Yelcho research station, , administered by the Chilean Antarctic Institute, stands on the southern shore of South Bay (Doumer Island), South Bay. Features * Gauthier Point, the northern extremity of Doume ...[...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Palmer Archipelago
Palmer Archipelago, also known as Antarctic Archipelago, Archipiélago Palmer, Antarktiske Arkipel or Palmer Inseln, is a group of islands off the northwestern coast of the Antarctic Peninsula. It extends from Tower Island in the north to Anvers Island in the south. It is separated by the Gerlache Strait, Gerlache and Bismarck Strait, Bismarck straits from the Antarctic Peninsula and Wilhelm Archipelago, respectively. The archipelago is in the British Antarctic Territory, British, Chilean Antarctic Territory, Chilean, and Argentine Antarctica, Argentine Claims. Palmer Archipelago is located at . History Adrien de Gerlache, leader of the Belgian Antarctic Expedition (1897–1899), discovered the archipelago in 1898. He named it Archipelago Palmer for American Captain Nathaniel Palmer, who navigated these waters in 1820. Both Argentina and the United Kingdom have operated research stations there. Islands The archipelago includes: Gallery File:Gerlache Strait.png, Map of Ger ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Antarctica
Antarctica () is Earth's southernmost and least-populated continent. Situated almost entirely south of the Antarctic Circle and surrounded by the Southern Ocean (also known as the Antarctic Ocean), it contains the geographic South Pole. Antarctica is the fifth-largest continent, being about 40% larger than Europe, and has an area of . Most of Antarctica is covered by the Antarctic ice sheet, with an average thickness of . Antarctica is, on average, the coldest, driest, and windiest of the continents, and it has the highest average elevation. It is mainly a polar desert, with annual Climate of Antarctica#Precipitation, precipitation of over along the coast and far less inland. About 70% of the world's freshwater reserves are frozen in Antarctica, which, if melted, would raise global sea levels by almost . Antarctica holds the record for the Lowest temperature recorded on Earth, lowest measured temperature on Earth, . The coastal regions can reach temperatures over in the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
French Antarctic Expedition, 1903–05
The French Antarctic Expedition is any of several French expeditions in Antarctica. 1837–1840 In 1837, during an 1837–1840 expedition across the deep southern hemisphere, Captain Jules Dumont d'Urville sailed his ship ''Astrolabe'' along a coastal area of Antarctica which he later named Adélie Land, in honor of his wife. During the Antarctic part of this expedition, Dumont d'Urville team performed the first experiments to determine the approximate position of the South magnetic pole, and landed on Débarquement Rock in the Géologie Archipelago, () just 4 km from the mainland, where he took mineral and animal samples. On his return to France in 1840 he was made rear admiral. 1904–1907 Jean-Baptiste Charcot was appointed leader of a 1904–1907 French Antarctic Expedition, aboard the ship ''Français'', exploring the west coast of Graham Land portion of the Antarctic Peninsula. The expedition reached Adelaide Island in 1905 and took pictures of the Palmer ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jean-Baptiste Charcot
Jean-Baptiste Étienne Auguste Charcot, better known in France as Commandant Charcot, (15 July 1867 in Neuilly-sur-Seine near Paris – 16 September 1936 at sea (30 miles north-west of Reykjavik, Iceland), was a French scientist, medical doctor and polar scientist. His father was the neurologist Jean-Martin Charcot (1825–1893). As a sportsman, he was French rugby XV champion in 1896 and also won a double silver medal in sailing at the 1900 Summer Olympics. Life Jean-Baptiste Charcot was appointed leader of the French Antarctic Expedition with the ship ''Français'' exploring the west coast of Graham Land from 1904 until 1907. The expedition reached Adelaide Island in 1905 and took pictures of the Palmer Archipelago and Loubet Coast. From 1908 until 1910, another expedition followed with the ship '' Pourquoi Pas ?'', exploring the Bellingshausen Sea and the Amundsen Sea and discovering Loubet Land, Marguerite Bay, Mount Boland and Charcot Island, which was named after his ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
