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Mount Castro
Mount Castro () is a mountain, high, on the north side of Seller Glacier, southeast of Mount Gilbert, in the central Antarctic Peninsula. It was photographed from the air by the British Graham Land Expedition in 1937, and by the Ronne Antarctic Research Expedition in 1947. It was surveyed from the ground by the Falkland Islands Dependencies Survey in December 1958, and named by the UK Antarctic Place-Names Committee for João de Castro, a Portuguese navigator who made pioneer experimental investigations of the variation of the magnetic compass A compass is a device that shows the cardinal directions used for navigation and geographic orientation. It commonly consists of a magnetized needle or other element, such as a compass card or compass rose, which can pivot to align itself with .... References Mountains of Palmer Land {{PalmerLand-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Seller Glacier
Seller Glacier is a well-defined glacier, 20 nautical miles (37 km) long and 4 nautical miles (7 km) wide flowing westward into Forster Ice Piedmont, western Antarctic Peninsula, just north of Flinders Peak. Roughly surveyed by British Graham Land Expedition (BGLE), 1936–37, and resurveyed by Falkland Islands Dependencies Survey (FIDS) in December 1958. Named by United Kingdom Antarctic Place-Names Committee (UK-APC) after John Seller John Seller (1632–1697) was an English compiler, publisher, and seller of maps, charts, and geographical books. From 1671 he was hydrographer to the King. Early life Seller, son of Henry Seller, a cordwainer, was baptized in London on 29 Decemb ... (about 1630-1698), English hydrographer and compass maker who published the first sailing directions for England, 1671; his ''The variation of the compass, with rules for its determination''. References Glaciers of Fallières Coast {{FallièresCoast-glacier-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mount Gilbert (Antarctica)
Mount Gilbert () is a mountain, high, on the divide between Airy Glacier and Seller Glacier, northwest of Mount Castro, in the west-central Antarctic Peninsula. It was photographed from the air by the British Graham Land Expedition in February 1937, and the Ronne Antarctic Research Expedition in November 1947. It was surveyed from the ground by the Falkland Islands Dependencies Survey in December 1958, and was named by the UK Antarctic Place-Names Committee The UK Antarctic Place-Names Committee (or UK-APC) is a United Kingdom government committee, part of the Foreign and Commonwealth Office, responsible for recommending names of geographical locations within the British Antarctic Territory (BAT) and ... for William Gilbert, an English physician whose pioneer work '' De magnete, magneticisque corporibus'' (1600) laid the foundations for an understanding of earth magnetism and the variation of the compass. References Mountains of Graham Land Fallières Coast {{ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Antarctic Peninsula
The Antarctic Peninsula, known as O'Higgins Land in Chile and Tierra de San Martín in Argentina, and originally as Graham Land in the United Kingdom and the Palmer Peninsula in the United States, is the northernmost part of mainland Antarctica. The Antarctic Peninsula is part of the larger peninsula of West Antarctica, protruding from a line between Cape Adams (Weddell Sea) and a point on the mainland south of the Eklund Islands. Beneath the ice sheet that covers it, the Antarctic Peninsula consists of a string of bedrock islands; these are separated by deep channels whose bottoms lie at depths considerably below current sea level. They are joined by a grounded ice sheet. Tierra del Fuego, the southernmost tip of South America, is about away across the Drake Passage. The Antarctic Peninsula is in area and 80% ice-covered. The marine ecosystem around the western continental shelf of the Antarctic Peninsula (WAP) has been subjected to rapid climate change. Over the past 50 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ronne Antarctic Research Expedition
The Ronne Antarctic Research Expedition (RARE) was an expedition from 1947–1948 which researched the area surrounding the head of the Weddell Sea in Antarctica. Background Finn Ronne led the RARE which was the final privately sponsored expedition from the United States and explored and mapped the last unknown coastline on earth and determined that the Weddell Sea and the Ross Sea were not connected. The expedition included Isaac Schlossbach, as second in command, who was to have Cape Schlossbach named after him. The expedition, based out of Stonington Island was the first to take women to over-winter. Ronne's wife, Edith Ronne was correspondent for the North American Newspaper Alliance for expedition and the chief pilot Darlington took his wife. Partial Listing of Discoveries * Mount Abrams - Named for Talbert Abrams, noted photogrammetric engineer * Mount Becker - Named for Ralph A. Becker, legal counsel who assisted in the formation of RARE * Mount Brundage - Named ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Falkland Islands Dependencies Survey
The British Antarctic Survey (BAS) is the United Kingdom's national polar research institute. It has a dual purpose, to conduct polar science, enabling better understanding of global issues, and to provide an active presence in the Antarctic on behalf of the UK. It is part of the Natural Environment Research Council (NERC). With over 400 staff, BAS takes an active role in Antarctic affairs, operating five research stations, one ship and five aircraft in both polar regions, as well as addressing key global and regional issues. This involves joint research projects with over 40 UK universities and more than 120 national and international collaborations. Having taken shape from activities during World War II, it was known as the Falkland Islands Dependencies Survey until 1962. History Operation Tabarin was a small British expedition in 1943 to establish permanently occupied bases in the Antarctic. It was a joint undertaking by the Admiralty and the Colonial Office. At the end of t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
UK Antarctic Place-Names Committee
The UK Antarctic Place-Names Committee (or UK-APC) is a United Kingdom government committee, part of the Foreign and Commonwealth Office, responsible for recommending names of geographical locations within the British Antarctic Territory (BAT) and the South Georgia and the South Sandwich Islands (SGSSI). Such names are formally approved by the Commissioners of the BAT and SGSSI respectively, and published in the BAT Gazetteer and the SGSSI Gazetteer maintained by the Committee. The BAT names are also published in the international Composite Gazetteer of Antarctica maintained by Scientific Committee on Antarctic Research, SCAR. The Committee may also consider proposals for new place names for geographical features in areas of Antarctica outside BAT and SGSSI, which are referred to other Antarctic place-naming authorities, or decided by the Committee itself if situated in the unclaimed sector of Antarctica. Names attributed by the committee * Anvil Crag, named for descriptive featu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
João De Castro
Dom João de Castro (27 February 1500 – 6 June 1548) was a Portuguese nobleman, scientist, writer, and the fourth viceroy of Portuguese India. He was called ''Castro Forte'' ("Stronghold" or "Strong Castle") by the poet Luís de Camões. De Castro was the second son of Álvaro de Castro, the civil governor of Lisbon. His wife was Leonor de Coutinho. Early life As the younger son of Álvaro de Castro, João was destined for the church. He studied mathematics under Pedro Nunes, along with Luis, Duke of Beja, son of King Manuel I of Portugal, with whom he formed a lifelong friendship. At eighteen, he went to Tangier for several years, where he was knighted by Dom Duarte de Menezes, the governor. Voyages to India and the expedition to Egypt In 1535 de Castro accompanied Dom Luis to the siege of Tunis, where he refused knighthood and rewards from Emperor Charles V. When de Castro returned to Lisbon, the king awarded him the commendation of São Paulo de Salvaterra in the O ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Magnetic Compass
A compass is a device that shows the cardinal directions used for navigation and geographic orientation. It commonly consists of a magnetized needle or other element, such as a compass card or compass rose, which can pivot to align itself with magnetic north. Other methods may be used, including gyroscopes, magnetometers, and GPS receivers. Compasses often show angles in degrees: north corresponds to 0°, and the angles increase clockwise, so east is 90°, south is 180°, and west is 270°. These numbers allow the compass to show azimuths or bearings which are commonly stated in degrees. If local variation between magnetic north and true north is known, then direction of magnetic north also gives direction of true north. Among the Four Great Inventions, the magnetic compass was first invented as a device for divination as early as the Chinese Han Dynasty (since c. 206 BC),Li Shu-hua, p. 176 and later adopted for navigation by the Song Dynasty Chinese during the 11th century. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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