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Napier Island
Napier Island is an island, long, in the southeastern part of Marguerite Bay, west-northwest of Mount Balfour on the Fallières Coast. Following survey and mapping as an ice rise in the Wordie Ice Shelf by the Falklands Islands Dependencies Survey in 1958, this feature was named ''Napier Ice Rise'' by the UK Antarctic Place-names Committee (UK-APC). The name was amended to Napier Island by the UK-APC after a general eastward recession of the Wordie Ice Front (around 1999) revealed it was an island. In association with the names of pioneers of navigation grouped in this area, it was named after John Napier (1550-1617), the Scottish mathematician who invented logarithm In mathematics, the logarithm is the inverse function to exponentiation. That means the logarithm of a number to the base is the exponent to which must be raised, to produce . For example, since , the ''logarithm base'' 10 o ...s and published his first tables in 1614. References Fallièr ... [...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, 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 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 measured temperature on Earth, . The coastal regions can reach temperatures over in summer. Native species of animals include mites, nematodes, penguins, seals and tardigrades. Where vegetation o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Antarctic Treaty System
russian: link=no, Договор об Антарктике es, link=no, Tratado Antártico , name = Antarctic Treaty System , image = Flag of the Antarctic Treaty.svgborder , image_width = 180px , caption = Flag of the Antarctic Treaty System , type = Condominium , date_drafted = , date_signed = December 1, 1959"Antarctic Treaty" in ''The New Encyclopædia Britannica''. Chicago: Encyclopædia Britannica Inc., 15th edn., 1992, Vol. 1, p. 439. , location_signed = Washington, D.C., United States , date_sealed = , date_effective = June 23, 1961 , condition_effective = Ratification of all 12 signatories , date_expiration = , signatories = 12 , parties = 55 , depositor = Federal government of the United States , languages = English, French, Russian, and Spanish , wikisource = Antarctic Treaty The Antarctic Treaty an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Marguerite Bay
Marguerite Bay or Margaret Bay is an extensive bay on the west side of the Antarctic Peninsula, which is bounded on the north by Adelaide Island and on the south by Wordie Ice Shelf, George VI Sound and Alexander Island. The mainland coast on the Antarctic Peninsula is Fallières Coast. Islands within the bay include Pourquoi Pas Island, Horseshoe Island, Terminal Island, and Lagotellerie Island. Marguerite Bay was discovered in 1909 by the French Antarctic Expedition under Jean-Baptiste Charcot, who named the bay for his wife. Named features Toadstool Rocks are a group of insular, ice-covered rocks that rise to about 250 cm above sea level in the southwest part of Marguerite Bay, east-southeast of Terminal Island. The rocks were roughly charted from RRS association with Mushroom Island and Puffball Islands. Endurance Reef is a reef in Marguerite Bay, lying west of Red Rock Ridge. The name is after HMS ''Endurance'' which at this position in February 1972 struck a ro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mount Balfour (Antarctica)
Mount Balfour () is a bastion-like rocky mountain, high, which lies at the mouth of Fleming Glacier, close to the junction with the Wordie Ice Shelf on the west side of the Antarctic Peninsula. First roughly surveyed in 1936 by the British Graham Land Expedition under Rymill, and resurveyed by the Falklands Islands Dependencies Survey in 1948. It was named for Henry Balfour, President of the Royal Geographical Society The Royal Geographical Society (with the Institute of British Geographers), often shortened to RGS, is a learned society and professional body for geography based in the United Kingdom. Founded in 1830 for the advancement of geographical scien ... from 1936 to 1938. References Mountains of Palmer Land {{PalmerLand-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fallières Coast
The Fallières Coast is that portion of the west coast of the Antarctic Peninsula between the head of Bourgeois Fjord and Cape Jeremy and lies on Marguerite Bay and the Wordie Ice Shelf. On the south it is joined by Rymill Coast, and in the north by Loubet Coast. Fallières Coast was first explored in January 1909 by the French Antarctic Expedition under J.B. Charcot, who named it for Armand Fallières, then President of France The president of France, officially the president of the French Republic (french: Président de la République française), is the executive head of state of France, and the commander-in-chief of the French Armed Forces. As the presidency i .... References Coasts of Graham Land {{FallièresCoast-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wordie Ice Shelf
The Wordie Ice Shelf () was a confluent glacier projecting as an ice shelf into the SE part of Marguerite Bay between Cape Berteaux and Mount Edgell, along the western coast of Antarctic Peninsula. In March 2008, the British Antarctic Survey reported that it appeared ready to break away from the Antarctic Peninsula. By April 2009 it had done so, vanishing completely. Discovered by the British Graham Land Expedition (BGLE) under Rymill, 1934–37, who named this feature for Sir James Wordie, Honorary Secretary (later President) of the Royal Geographical Society, member of the Discovery Committee, and chairman of the Scott Polar Research Institute. He also had been geologist and Chief of the Scientific Staff of the British expedition, 1914–16, under Ernest Shackleton. See also * List of Antarctic ice shelves This is a list of Antarctic ice shelves. Ice shelves are attached to a large portion of the Antarctic coastline. Their total area is 1,541,700 km2. Names are ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Falklands 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] |
John Napier
John Napier of Merchiston (; 1 February 1550 – 4 April 1617), nicknamed Marvellous Merchiston, was a Scottish landowner known as a mathematician, physicist, and astronomer. He was the 8th Laird of Merchiston. His Latinized name was Ioannes Neper. John Napier is best known as the discoverer of logarithms. He also invented the so-called "Napier's bones" and made common the use of the decimal point in arithmetic and mathematics. Napier's birthplace, Merchiston Tower in Edinburgh, is now part of the facilities of Edinburgh Napier University. There is a memorial to him at St Cuthbert's at the west side of Edinburgh. Life Napier's father was Sir Archibald Napier of Merchiston Castle, and his mother was Janet Bothwell, daughter of the politician and judge Francis Bothwell, and a sister of Adam Bothwell who became the Bishop of Orkney. Archibald Napier was 16 years old when John Napier was born. There are no records of Napier's early education, but many believe that he was ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Logarithm
In mathematics, the logarithm is the inverse function to exponentiation. That means the logarithm of a number to the base is the exponent to which must be raised, to produce . For example, since , the ''logarithm base'' 10 of is , or . The logarithm of to ''base'' is denoted as , or without parentheses, , or even without the explicit base, , when no confusion is possible, or when the base does not matter such as in big O notation. The logarithm base is called the decimal or common logarithm and is commonly used in science and engineering. The natural logarithm has the number as its base; its use is widespread in mathematics and physics, because of its very simple derivative. The binary logarithm uses base and is frequently used in computer science. Logarithms were introduced by John Napier in 1614 as a means of simplifying calculations. They were rapidly adopted by navigators, scientists, engineers, surveyors and others to perform high-a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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