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Grubb Glacier
Grubb Glacier () is a glacier flowing into Lester Cove, Andvord Bay, to the west of Bagshawe Glacier, on the west coast of Graham Land, Antarctica. The glacier appears on an Argentine government chart of 1952. It was named by the UK Antarctic Place-Names Committee in 1960 for Thomas Grubb, an Irish optician who designed and introduced the first aplanatic In optics, spherical aberration (SA) is a type of aberration found in optical systems that have elements with spherical surfaces. Lenses and curved mirrors are prime examples, because this shape is easier to manufacture. Light rays that strike a ... camera lens, in 1857. References Glaciers of Danco Coast {{DancoCoast-glacier-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mount Inverleith - Sunset Over Neko Harbor, Antarctic Peninsula
Mount is often used as part of the name of specific mountains, e.g. Mount Everest. Mount or Mounts may also refer to: Places * Mount, Cornwall, a village in Warleggan parish, England * Mount, Perranzabuloe, a hamlet in Perranzabuloe parish, Cornwall, England * Mounts, Indiana, a community in Gibson County, Indiana, United States People * Mount (surname) * William L. Mounts (1862–1929), American lawyer and politician Computing and software * Mount (computing), the process of making a file system accessible * Mount (Unix), the utility in Unix-like operating systems which mounts file systems Displays and equipment * Mount, a fixed point for attaching equipment, such as a hardpoint on an airframe * Mounting board, in picture framing * Mount, a hanging scroll for mounting paintings * Mount, to display an item on a heavy backing such as foamcore, e.g.: ** To pin a biological specimen, on a heavy backing in a stretched stable position for ease of dissection or display ** ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Glacier
A glacier (; ) is a persistent body of dense ice that is constantly moving under its own weight. A glacier forms where the accumulation of snow exceeds its Ablation#Glaciology, ablation over many years, often Century, centuries. It acquires distinguishing features, such as Crevasse, crevasses and Serac, seracs, as it slowly flows and deforms under stresses induced by its weight. As it moves, it abrades rock and debris from its substrate to create landforms such as cirques, moraines, or fjords. Although a glacier may flow into a body of water, it forms only on land and is distinct from the much thinner sea ice and lake ice that form on the surface of bodies of water. On Earth, 99% of glacial ice is contained within vast ice sheets (also known as "continental glaciers") in the polar regions, but glaciers may be found in mountain ranges on every continent other than the Australian mainland, including Oceania's high-latitude oceanic island countries such as New Zealand. Between lati ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lester Cove
Andvord Bay () is a bay-like fjord, long and wide, which lies between Beneden Head and Duthiers Point along the west coast of Graham Land. It was discovered by the Belgian Antarctic Expedition, 1897–99, under Adrien de Gerlache, and named by him for Rolf Andvord (consul), Rolf Andvord, Belgians, Belgian Consul (representative), consul at Oslo, Christiania (Oslo) at that time. A popular cruise-ship destination is Neko Harbour, which was discovered by Belgian explorer Adrien de Gerlache in the early 20th century. It was named for a Scotland, Scottish whaling boat, the ''Neko'', which operated in the area between 1911 and 1924. FjordEco Scientific Expedition "Fjord Ecosystem (FjordEco) Structure and Function on the West Antarctica Peninsula – Hotspots of Productivity and Biodiversity?" is an integrated field and modeling study which aims to evaluate physical oceanographic processes, glacial inputs, plankton dynamics, and benthic community structure and function in Andvord B ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Andvord Bay
Andvord Bay () is a bay-like fjord, long and wide, which lies between Beneden Head and Duthiers Point along the west coast of Graham Land. It was discovered by the Belgian Antarctic Expedition, 1897–99, under Adrien de Gerlache, and named by him for Rolf Andvord, Belgian consul at Christiania (Oslo) at that time. A popular cruise-ship destination is Neko Harbour, which was discovered by Belgian explorer Adrien de Gerlache in the early 20th century. It was named for a Scottish whaling boat, the ''Neko'', which operated in the area between 1911 and 1924. FjordEco Scientific Expedition "Fjord Ecosystem (FjordEco) Structure and Function on the West Antarctica Peninsula – Hotspots of Productivity and Biodiversity?" is an integrated field and modeling study which aims to evaluate physical oceanographic processes, glacial inputs, plankton dynamics, and benthic community structure and function in Andvord Bay. *Christensen, K., 2017. The Upper Layer Structure and Variability ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bagshawe Glacier
Bagshawe Glacier () is a glacier which drains the northeast slopes of Mount Theodore and discharges into Lester Cove, Andvord Bay west of Mount Tsotsorkov, on the west coast of Graham Land, Antarctica. History The mouth of the glacier was first seen and sketched by the Belgian Antarctic Expedition in February 1898, and the glacier was first roughly surveyed by Kenneth V. Blaiklock of the Falkland Islands Dependencies Survey from the ship in April 1955. It was named by the UK Antarctic Place-Names Committee after Thomas W. Bagshawe who, with Maxime C. Lester, wintered at Waterboat Point near Andvord Bay in 1921. See also * List of glaciers in the Antarctic * Glaciology Glaciology (; ) is the scientific study of glaciers, or more generally ice and natural phenomena that involve ice. Glaciology is an interdisciplinary Earth science that integrates geophysics, geology, physical geography, geomorphology, climato ... References Glaciers of Danco Coast {{Dan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Graham Land
Graham Land is the portion of the Antarctic Peninsula that lies north of a line joining Cape Jeremy and Cape Agassiz. This description of Graham Land is consistent with the 1964 agreement between the British Antarctic Place-names Committee and the US Advisory Committee on Antarctic Names, in which the name "Antarctic Peninsula" was approved for the major peninsula of Antarctica, and the names Graham Land and Palmer Land for the northern and southern portions, respectively. The line dividing them is roughly 69 degrees south. Graham Land is named after Sir James R. G. Graham, First Lord of the Admiralty at the time of John Biscoe's exploration of the west side of Graham Land in 1832. It is claimed by Argentina (as part of Argentine Antarctica), Britain (as part of the British Antarctic Territory) and Chile (as part of the Chilean Antarctic Territory). Graham Land is the closest part of Antarctica to South America. Thus it is the usual destination for small ships taking paying ... [...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] |
Thomas Grubb
Thomas Grubb (4 August 1800 – 19 September 1878) was an Irish optician and founder of the Grubb Telescope Company. He was born near Portlaw, County Waterford, Ireland, the son of William Grubb Junior, a prosperous Quaker farmer and his second wife, Eleanor Fayle. Thomas started out in 1830 in Dublin as a metal billiard-table manufacturer. He diversified into making telescopes and erected a public observatory near his factory at 1 Upper Charlemont Street, Portobello, Dublin. As makers of some of the largest and best-known telescopes of the Victorian era, the company was at the forefront of optical and mechanical engineering. His innovations for large telescopes included clock-driven polar mounts, whiffletree mirror mounting cells and Cassegrain reflector optics. Grubb helped build the famous telescope for William Parsons, 3rd Earl of Rosse, at Parsonstown (now known as Birr), County Offaly, Ireland. One of his earliest instruments - the telescope for Markree Observatory ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aplanatic
In optics, spherical aberration (SA) is a type of aberration found in optical systems that have elements with spherical surfaces. Lenses and curved mirrors are prime examples, because this shape is easier to manufacture. Light rays that strike a spherical surface off-centre are refracted or reflected more or less than those that strike close to the centre. This deviation reduces the quality of images produced by optical systems. Overview A spherical lens has an aplanatic point (i.e., no spherical aberration) only at a radius that equals the radius of the sphere divided by the index of refraction of the lens material. A typical value of refractive index for crown glass is 1.5 (see list), which indicates that only about 43% of the area (67% of diameter) of a spherical lens is useful. It is often considered to be an imperfection of telescopes and other instruments which makes their focusing less than ideal due to the spherical shape of lenses and mirrors. This is an important ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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