|
Cape Naturaliste Lighthouse
Cape Naturaliste, in the south west of Western Australia, is the site of a lighthouse which was activated in 1904. It is a high cylindrical tower built of limestone that still uses its original first order Fresnel lens made by Chance Brothers. The light characteristic is "Fl. (2) 10 s", i.e. a group of two flashes every ten seconds, the focal plane is at above sea level. Another precious lens optic is displayed there, the second order Fresnel lens of the Jarman Island Light, as well as the original Great Sandy Islands beacon. Both items were originally used on the Pilbara coast further north. The lighthouse was constructed of limestone quarried from nearby Bunker Bay, which was also known as the "Quarries". See also * List of lighthouses in Australia This is a list of lighthouses and lightvessels in Australia. Australia has a coastline of , with over 350 lighthouses and navigational aids around the Australian coastline, and a single inland lighthouse, the Point Malcolm ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cape Naturaliste
Cape Naturaliste is a headland in the south western region of Western Australia at the western edge of the Geographe Bay. It is the northernmost point of the Leeuwin-Naturaliste Ridge which was named after the cape. Also the Leeuwin-Naturaliste National Park, Cape Naturaliste Lighthouse and the Cape to Cape hiking track were named after this location. Settlements The nearest settlement is Bunker Bay – a community that evolved from holiday shacks to very expensive housing for wealthy residents as well as featuring a popular beach resort. Further east, across the Bay, is Dunsborough, a much older settlement. Busselton is located still further east from there. History The first peoples in Cape Naturaliste were the Wardandi Aboriginals, who called it "Kwirreejeenungup", meaning "the place with the beautiful view". In 1801, the French navigator Nicolas Baudin stopped here on 30 May during his exploration of Australia. The French were mapping the coast of New Holland (Australia ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Limestone
Limestone ( calcium carbonate ) is a type of carbonate sedimentary rock which is the main source of the material lime. It is composed mostly of the minerals calcite and aragonite, which are different crystal forms of . Limestone forms when these minerals precipitate out of water containing dissolved calcium. This can take place through both biological and nonbiological processes, though biological processes, such as the accumulation of corals and shells in the sea, have likely been more important for the last 540 million years. Limestone often contains fossils which provide scientists with information on ancient environments and on the evolution of life. About 20% to 25% of sedimentary rock is carbonate rock, and most of this is limestone. The remaining carbonate rock is mostly dolomite, a closely related rock, which contains a high percentage of the mineral dolomite, . ''Magnesian limestone'' is an obsolete and poorly-defined term used variously for dolomite, for limes ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leeuwin-Naturaliste National Park
Leeuwin-Naturaliste National Park is a national park in the South West region of Western Australia, south of Perth. It is named after the two locations at either end of the park which have lighthouses, Cape Leeuwin and Cape Naturaliste. It is located in the Augusta-Margaret River and Busselton council areas, and is claimed to have the highest visiting numbers of any national park in Western Australia. The park received 2.33 million visitors through 2008–2009. Description The park extends over 100 miles, from Cape Naturaliste in the north to Cape Leeuwin in the south. It is composed of 28 separate reserves, which together have an area of about 15,600 ha. Despite the park's large size, the reserves are fragmented, and in many places the park consists only of a narrow coastal strip.Keighery, Greg & Lyons, Michael & Gibson, N. & Keighery, B.. (2011). Vascular flora of Leeuwin-Naturaliste National Park. ''Conservation Science Western Australia''. 2011, Vol. 8 Issue 1, p31-60. 30p. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Museums In Western Australia ...
This list of museums in Western Australia contains museums which are defined for this context as institutions (including nonprofit organizations, government entities, and private businesses) that collect and care for objects of cultural, artistic, scientific, or historical interest and make their collections or related exhibits available for public viewing. Also included are non-profit art galleries and university art galleries. Defunct museums * Museum of Western Australia Sportshttp://www.historycouncilwa.org.au/advocacy/cultural-infrastructure/sports-museum Sports Museum, History Council of Western Australia See also * List of museums in Australia References {{reflist Western Australia * Museums Museums A museum ( ; plural museums or, rarely, musea) is a building or institution that cares for and displays a collection of artifacts and other objects of artistic, cultural, historical, or scientific importance. Many public museums make these ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lighthouse Museums In Australia
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] |
Cape Naturaliste, Western Australia
Cape Naturaliste is a headland in the south western region of Western Australia at the western edge of the Geographe Bay. It is the northernmost point of the Leeuwin-Naturaliste Ridge which was named after the cape. Also the Leeuwin-Naturaliste National Park, Cape Naturaliste Lighthouse and the Cape to Cape hiking track were named after this location. Settlements The nearest settlement is Bunker Bay – a community that evolved from holiday shacks to very expensive housing for wealthy residents as well as featuring a popular beach resort. Further east, across the Bay, is Dunsborough, a much older settlement. Busselton is located still further east from there. History The first peoples in Cape Naturaliste were the Wardandi Aboriginals, who called it "Kwirreejeenungup", meaning "the place with the beautiful view". In 1801, the French navigator Nicolas Baudin stopped here on 30 May during his exploration of Australia. The French were mapping the coast of New Holland (Austral ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lighthouses In Western Australia
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] |
List Of Lighthouses In Australia
This is a list of lighthouses and lightvessels in Australia. Australia has a coastline of , with over 350 lighthouses and navigational aids around the Australian coastline, and a single inland lighthouse, the Point Malcolm lighthouse. The first lighthouse was Macquarie Lighthouse, which was lit in 1793 as a tripod mounted wood and coal fired beacon. The last staffed lighthouse was Maatsuyker Island Lighthouse, off the south coast of Tasmania, which was automated in 1996. Listing The lighthouses and lightvessels of Australia are listed in the National Geospatial-Intelligence Agency ''List of Lights'' publication 111. They are listed by the United Kingdom Hydrographic Office on volume K of the ''Admiralty List of Lights & Fog Signals''. The ''ARLHS World List of Lights'' lists them with the prefix "AUS". On ''The Lighthouse Directory'', the lighthouses of Australia are listed according to their location: * Coral Sea Islands Territory * New South Wales, including Cape St George ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bunker Bay
A bunker is a defensive military fortification designed to protect people and valued materials from falling bombs, artillery, or other attacks. Bunkers are almost always underground, in contrast to blockhouses which are mostly above ground. They were used extensively in World War I, World War II, and the Cold War for weapons facilities, command and control centers, and storage facilities. Bunkers can also be used as protection from tornadoes. Trench bunkers are small concrete structures, partly dug into the ground. Many artillery installations, especially for coastal artillery, have historically been protected by extensive bunker systems. Typical industrial bunkers include mining sites, food storage areas, dumps for materials, data storage, and sometimes living quarters. When a house is purpose-built with a bunker, the normal location is a reinforced below-ground bathroom with fiber-reinforced plastic shells. Bunkers deflect the blast wave from nearby explosions to prevent ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pilbara Coast
The Pilbara Coast is the coastline of Western Australia's Pilbara region. It is often referred to as the North West Coast of Western Australia. It is a complex array of river mouths, ports, peninsulas, and islands. Geography North West Cape forms the western end of the Pilbara Coast. According to the ICMRA, the Pilbara Coast ends at Cape Keraudren, a rocky headland that forms the western end of Eighty Mile Beach. Others end it further east at Wallal. Lagoons protected by barrier islands, embayments, river deltas, and rocky headlands are the main coastal features. The Pilbara's intermittent rivers, including the Ashburton, Fortescue, Yule, and De Grey, have deposited sediment to form river deltas. There are many coastal islands, including the near-shore Dampier Archipelago, a cluster of rocky islands and reefs. The larger offshore islands include Barrow Island and the Montebello Islands.Thackway R, Cresswell ID. 1998. Interim Marine and Coastal Regionalisation for Austral ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Western Australia
Western Australia (commonly abbreviated as WA) is a state of Australia occupying the western percent of the land area of Australia excluding external territories. It is bounded by the Indian Ocean to the north and west, the Southern Ocean to the south, the Northern Territory to the north-east, and South Australia to the south-east. Western Australia is Australia's largest state, with a total land area of . It is the second-largest country subdivision in the world, surpassed only by Russia's Sakha Republic. the state has 2.76 million inhabitants percent of the national total. The vast majority (92 percent) live in the south-west corner; 79 percent of the population lives in the Perth area, leaving the remainder of the state sparsely populated. The first Europeans to visit Western Australia belonged to the Dutch Dirk Hartog expedition, who visited the Western Australian coast in 1616. The first permanent European colony of Western Australia occurred following the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Focal Plane
In Gaussian optics, the cardinal points consist of three pairs of points located on the optical axis of a rotationally symmetric, focal, optical system. These are the '' focal points'', the principal points, and the nodal points. For ''ideal'' systems, the basic imaging properties such as image size, location, and orientation are completely determined by the locations of the cardinal points; in fact only four points are necessary: the focal points and either the principal or nodal points. The only ideal system that has been achieved in practice is the plane mirror, however the cardinal points are widely used to ''approximate'' the behavior of real optical systems. Cardinal points provide a way to analytically simplify a system with many components, allowing the imaging characteristics of the system to be approximately determined with simple calculations. Explanation The cardinal points lie on the optical axis of the optical system. Each point is defined by the effect the opti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
