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Cape Spencer (South Australia)
Cape Spencer is a headland in the Australian state of South Australia located on the south west tip of Yorke Peninsula in the gazetted locality of Inneston. It was named after George Spencer, 2nd Earl Spencer by Matthew Flinders during March 1802. It has been the site of an operating navigation aid since 1950 and has been located within the Innes National Park since 1970. Description Cape Spencer is located about south west of the municipal seat of Maitland in the gazetted locality of Inneston. It is the most south westerly point of the Yorke Peninsula coast and defined by Flinders as being the eastern side of the mouth of Spencer Gulf. It is the termination for a pair of coastlines - the western coastline extending from Corny Point in the nouth and the southern coastline extending from Troubridge Point in the east. It is described as appearing ‘as a cone with a ledge of rocks at its base’ when viewed from the south. Cape Spencer is accessible via a walking trail ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yorke Peninsula Council
The Yorke Peninsula Council is a local government area in South Australia. Its boundaries include most of the Yorke Peninsula. The council seat is at Maitland; the council also maintains branch offices at Minlaton and Yorketown. History It came into existence on 10 February 1997 as a result of the amalgamation of the District Council of Central Yorke Peninsula, the District Council of Minlaton, the District Council of Warooka and the District Council of Yorketown. It was named as the District Council of Yorke Peninsula at its inception, but was renamed to Yorke Peninsula Council in 2013. Extent Yorke Peninsula Council includes the towns and localities of: * Agery *Ardrossan * Arthurton * Balgowan * Black Point * Bluff Beach * Brentwood * Chinaman Wells * Clinton * Clinton Centre * Coobowie * Corny Point * Couch Beach *Cunningham *Curramulka * Dowlingville *Edithburgh *Foul Bay * Hardwicke Bay *Honiton * Inneston * James Well * Kainton * Koolywurtie *Maitland * Marion Bay * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wave-cut Platform
A wave-cut platform, shore platform, coastal bench, or wave-cut cliff is the narrow flat area often found at the base of a sea cliff or along the shoreline of a lake, bay, or sea that was created by erosion. Wave-cut platforms are often most obvious at low tide when they become visible as huge areas of flat rock. Sometimes the landward side of the platform is covered by sand, forming the beach, and then the platform can only be identified at low tides or when storms move the sand. __TOC__ Formation Wave-cut platforms form when destructive waves hit against the cliff face, causing an undercut between the high and low water marks, mainly as a result of abrasion, corrosion and hydraulic action, creating a wave-cut notch. This notch then enlarges into a cave. The waves undermine this portion until the roof of the cave cannot hold due to the pressure and freeze-thaw or biological weathering acting on it, and collapses, resulting in the cliff retreating landward. The base of the ca ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cape Spencer (other)
Cape Spencer can refer to * Cape Spencer (Alaska) * Cape Spencer (South Australia) * Cape Spencer (Antarctica) See also *Cape Spencer-Smith Cape Spencer-Smith is the northernmost cape of White Island, in the Ross Archipelago. Named by the New Zealand Geological Survey Antarctic Expedition (NZGSAE) (1958–59) for the Rev. Arnold Spencer-Smith, chaplain with the Ross Sea Party of the Imp ..., cape in Antarctica * Cape Spencer Light (other) {{geodis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Southern Spencer Gulf Marine Park
Southern may refer to: Businesses * China Southern Airlines, airline based in Guangzhou, China * Southern Airways, defunct US airline * Southern Air, air cargo transportation company based in Norwalk, Connecticut, US * Southern Airways Express, Memphis-based passenger air transportation company, serving eight cities in the US * Southern Company, US electricity corporation * Southern Music (now Peermusic), US record label * Southern Railway (other), various railways * Southern Records, independent British record label * Southern Studios, recording studio in London, England * Southern Television, defunct UK television company * Southern (Govia Thameslink Railway), brand used for some train services in Southern England Media * ''Southern Daily'' or ''Nanfang Daily'', the official Communist Party newspaper based in Guangdong, China * ''Southern Weekly'', a newspaper in Guangzhou, China * Heart Sussex, a radio station in Sussex, England, previously known as "Southern FM" * 88 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Radar
Radar is a detection system that uses radio waves to determine the distance (''ranging''), angle, and radial velocity of objects relative to the site. It can be used to detect aircraft, ships, spacecraft, guided missiles, motor vehicles, weather formations, and terrain. A radar system consists of a transmitter producing electromagnetic waves in the radio or microwaves domain, a transmitting antenna, a receiving antenna (often the same antenna is used for transmitting and receiving) and a receiver and processor to determine properties of the objects. Radio waves (pulsed or continuous) from the transmitter reflect off the objects and return to the receiver, giving information about the objects' locations and speeds. Radar was developed secretly for military use by several countries in the period before and during World War II. A key development was the cavity magnetron in the United Kingdom, which allowed the creation of relatively small systems with sub-meter resolution. Th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
High Frequency
High frequency (HF) is the ITU designation for the range of radio frequency electromagnetic waves (radio waves) between 3 and 30 megahertz (MHz). It is also known as the decameter band or decameter wave as its wavelengths range from one to ten decameters (ten to one hundred meters). Frequencies immediately below HF are denoted medium frequency (MF), while the next band of higher frequencies is known as the very high frequency (VHF) band. The HF band is a major part of the shortwave band of frequencies, so communication at these frequencies is often called shortwave radio. Because radio waves in this band can be reflected back to Earth by the ionosphere layer in the atmosphere – a method known as "skip" or " skywave" propagation – these frequencies are suitable for long-distance communication across intercontinental distances and for mountainous terrains which prevent line-of-sight communications. The band is used by international shortwave broadcasting stations ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lighthouse
A lighthouse is a tower, building, or other type of physical structure designed to emit light from a system of lamps and lenses and to serve as a beacon for navigational aid, for maritime pilots at sea or on inland waterways. Lighthouses mark dangerous coastlines, hazardous shoals, reefs, rocks, and safe entries to harbors; they also assist in aerial navigation. Once widely used, the number of operational lighthouses has declined due to the expense of maintenance and has become uneconomical since the advent of much cheaper, more sophisticated and effective electronic navigational systems. History Ancient lighthouses Before the development of clearly defined ports, mariners were guided by fires built on hilltops. Since elevating the fire would improve the visibility, placing the fire on a platform became a practice that led to the development of the lighthouse. In antiquity, the lighthouse functioned more as an entrance marker to ports than as a warning signal for reefs a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Baudin Expedition To Australia
The Baudin expedition of 1800 to 1803 was a French expedition to map the coast of New Holland (now Australia). Nicolas Baudin was selected as leader in October 1800. The expedition started with two ships, '' Géographe'', captained by Baudin, and ''Naturaliste'' captained by Jacques Hamelin, and was accompanied by nine zoologists and botanists, including Jean-Baptiste Leschenault de la Tour, François Péron and Charles-Alexandre Lesueur as well as the geographer Pierre Faure. Expedition Napoléon Bonaparte, as First Consul, formally approved the expedition "to the coasts of New Holland", after receiving a delegation consisting of Baudin and eminent members of thInstitut National des Sciences et Artson 25 March 1800. The explicit purpose of the voyage was to be "observation and research relating to Geography and Natural History." The Baudin expedition departed Le Havre, France, on 19 October 1800. Because of delays in receiving his instructions and problems encountered in Is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
A Voyage To Terra Australis
''A Voyage to Terra Australis: Undertaken for the Purpose of Completing the Discovery of that Vast Country, and Prosecuted in the Years 1801, 1802, and 1803, in His Majesty's Ship the Investigator'' was a sea voyage journal written by English mariner and explorer Matthew Flinders. It describes his circumnavigation of the Australian continent in the early years of the 19th century, and his imprisonment by the French on the island of Mauritius from 1804–1810. Circumnavigation The book told in great detail of his explorations and included maps and drawings of the profiles of unknown coastline areas of what Flinders called " Terra Australis Incognita". By this, he was referring to the great unknown Southern continent that had been sighted and partly mapped by prominent earlier mariners such as Captain James Cook. The ship Flinders commanded, , was a 334-ton sloop. Up until this time the circumnavigation of Australia which was necessary to prove it was a single continent land mass ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Terra Australis
(Latin: '"Southern Land'") was a hypothetical continent first posited in antiquity and which appeared on maps between the 15th and 18th centuries. Its existence was not based on any survey or direct observation, but rather on the idea that continental land in the Northern Hemisphere should be balanced by land in the Southern Hemisphere.John Noble Wilford: The Mapmakers, the Story of the Great Pioneers in Cartography from Antiquity to Space Age, p. 139, Vintage Books, Random House 1982, This theory of balancing land has been documented as early as the 5th century on maps by Macrobius, who uses the term ' on his maps. Names Other names for the hypothetical continent have included ''Terra Australis Ignota'', ''Terra Australis Incognit ("the unknown land of the south") or ''Terra Australis Nondum Cognita'' ("the southern land not yet known"). Other names were ''Brasiliae Australis'' ("the southern Brazil"), and ''Magellanica'' ("the land of Magellan"). Matthias Ringmann calle ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
New Holland (Australia)
''New Holland'' ( nl, Nieuw-Holland) is a historical European name for mainland Australia. The name was first applied to Australia in 1644 by the Dutch seafarer Abel Tasman. The name came for a time to be applied in most European maps to the vaunted "Southern land" or ''Terra Australis'' even after its coastline was finally explored. The continent of Antarctica, later named in the 1890s, was still in largely speculative form; it resumed the name ''Terra Australis'' (sometimes suffixed ''Non Cognita'', unknown). Its existence had been speculated on in some maps since the 5th century, under the theory of "balancing hemispheres". Lieutenant James Cook, captain of HMS ''Endeavour'', claimed the eastern portion of the Australian continent for the British Crown in 1770, naming it New South Wales. The British settlement of Sydney as a colony in 1788 prompted Britain to formally claim the east coast as New South Wales, leading to a search for a new collective name. New Holland ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lords Commissioners Of The Admiralty
The Board of Admiralty (1628–1964) was established in 1628 when Charles I put the office of Lord High Admiral into commission. As that position was not always occupied, the purpose was to enable management of the day-to-day operational requirements of the Royal Navy; at that point administrative control of the navy was still the responsibility of the Navy Board, established in 1546. This system remained in place until 1832, when the Board of Admiralty became the sole authority charged with both administrative and operational control of the navy when the Navy Board was abolished. The term Admiralty has become synonymous with the command and control of the Royal Navy, partly personified in the Board of Admiralty and in the Admiralty buildings in London from where operations were in large part directed. It existed until 1964 when the office of First Lord of the Admiralty was finally abolished and the functions of the Lords Commissioners were transferred to the new Admiralty Boar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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