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Point Danger (Tweed Heads)
Point Danger is a headland, located at Coolangatta on the southern end of the Gold Coast on the east coast of Australia. Separated by Snapper Rocks and Rainbow Bay to the west, with Duranbah Beach and the Tweed River mouth to the south, present-day Point Danger has also indicated the border between New South Wales and Queensland, Australia, since 1863. The point is the location of the Captain Cook memorial and lighthouse, the Centaur Memorial and Walk of Remembrance, the Marine Rescue NSW Point Danger station, and the southern end of the Gold Coast Oceanway. The Centaur Memorial remembers the sinking of Australian Hospital Ship ''Centaur'' by a Japanese submarine on 14 May 1943. The Walk of Remembrance commemorates other ships lost to Japanese and German action during World War II and takes the form of plaques arranged in a semicircle around the lookout fence. History Captain James Cook, upon encountering the eastern Australian coast and naming Ram Head, today's Rame Head ( ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Coolangatta, Queensland
Coolangatta is a coastal suburb in the City of Gold Coast, Queensland, Australia. It is the Gold Coast's southernmost suburb and it borders New South Wales. In the , Coolangatta had a population of 5,948 people. Geography Coolangatta and its immediate neighbouring "Twin Town" Tweed Heads in New South Wales have a shared economy. The Tweed River supports a thriving fishing fleet, and the seafood is a local specialty offered in the restaurants and clubs of the holiday and retirement region on both sides of the state border. There are three hills in Coolangatta: * Kirra Hill ( ) at above sea level on the coast, which was named in 1883 by surveyor Schneider (1883) using an Aboriginal word which might mean ''white cockatoo'' or ''fire'' * Greenmount Hill ( ) at above sea level on the coast, which was named for the Greenmount Guest House, operated from 1905 by Patrick J. Fagan, and named after his birthplace in County Meath, Ireland * Murraba ( ) at above sea level on the bord ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
World War II
World War II or the Second World War, often abbreviated as WWII or WW2, was a world war that lasted from 1939 to 1945. It involved the vast majority of the world's countries—including all of the great powers—forming two opposing military alliances: the Allies and the Axis powers. World War II was a total war that directly involved more than 100 million personnel from more than 30 countries. The major participants in the war threw their entire economic, industrial, and scientific capabilities behind the war effort, blurring the distinction between civilian and military resources. Aircraft played a major role in the conflict, enabling the strategic bombing of population centres and deploying the only two nuclear weapons ever used in war. World War II was by far the deadliest conflict in human history; it resulted in 70 to 85 million fatalities, mostly among civilians. Tens of millions died due to genocides (including the Holocaust), starvation, ma ... [...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] |
Laser
A laser is a device that emits light through a process of optical amplification based on the stimulated emission of electromagnetic radiation. The word "laser" is an acronym for "light amplification by stimulated emission of radiation". The first laser was built in 1960 by Theodore H. Maiman at Hughes Research Laboratories, based on theoretical work by Charles Hard Townes and Arthur Leonard Schawlow. A laser differs from other sources of light in that it emits light which is ''coherent''. Spatial coherence allows a laser to be focused to a tight spot, enabling applications such as laser cutting and lithography. Spatial coherence also allows a laser beam to stay narrow over great distances (collimation), enabling applications such as laser pointers and lidar (light detection and ranging). Lasers can also have high temporal coherence, which allows them to emit light with a very narrow spectrum. Alternatively, temporal coherence can be used to produce ultrashort pulses of ligh ... [...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] |
Australian National Maritime Museum
The Australian National Maritime Museum (ANMM) is a Australian government, federally operated maritime museum in Darling Harbour, Sydney. After considering the idea of establishing a maritime museum, the federal government announced that a national maritime museum would be constructed at Darling Harbour, tied into the Government of New South Wales, New South Wales state government's redevelopment of the area for the Australian bicentenary in 1988. The museum building was designed by Philip Cox, and although an opening date of 1988 was initially set, construction delays, cost overruns, and disagreements between the state and federal governments over funding responsibility pushed the opening to 1991. One of six museums directly operated by the federal government, the ANMM is the only one located outside of the Australian Capital Territory. The museum is structured around seven main galleries, focusing on the relationships between Indigenous Australians and the sea, the navigation of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Port Curtis
Port Curtis is a suburb of Rockhampton in the Rockhampton Region, Queensland, Australia. In the , Port Curtis had a population of 281 people. Geography The Fitzroy River bounds the suburb to the north-east. Gavial Creek, a tributary of the Fitzroy River, flows through the locality with their confluence at the north of the suburb. The land is flat and low-lying (less than 10 metres above sea level). The North Coast railway line passes along the western edge of the locality with the junction with the Central Western railway line at Rocklands railway station () within Port Curtis. As at January 2021, very little of the land has been developed with only a few small pockets of residential and industrial use. History Port Curtis Road State School opened on 23 March 1875. In 1912, a Baptist church opened in Port Curtis Road close to the state school. It was a "rapid erection" with construction of pre-fabricated sections commencing at 3pm to be completed in time for an officia ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
John Oxley
John Joseph William Molesworth Oxley (1784 – 25 May 1828) was an explorer and surveyor of Australia in the early period of British colonisation. He served as Surveyor General of New South Wales and is perhaps best known for his two expeditions into the interior of New South Wales and his exploration of the Tweed River and the Brisbane River in what is now the state of Queensland. Early life John Oxley was born at Kirkham Abbey near Westow in Yorkshire, Great Britain. He was baptised at Bulmer on 6 July 1784, his parents recorded as John and Arabella Oxley. Naval career In 1799 (aged 15), he entered the Royal Navy as a midshipman on the . He travelled to Australia in October 1802 as master's mate of the naval vessel , which carried out coastal surveying (including the survey of Western Port), and this first stay in the Colonies would last for five years. In 1805, Oxley became acting lieutenant of the ''Buffalo'' and traveled to Van Diemen's Land the following yea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mount Warning
Mount Warning ( Bundjalung: ''Wollumbin''), a mountain in the Tweed Range in the Northern Rivers region of New South Wales, Australia, was formed from a volcanic plug of the now-gone Tweed Volcano. The mountain is located west-south-west of Murwillumbah, near the border between New South Wales and Queensland. Lieutenant James Cook saw the mountain from the sea and named it Mount Warning. Shield volcano Mount Warning is the central volcanic remnant of an ancient shield volcano, the Tweed Volcano, which would have been about above sea level or just under twice the height of the current mountain.The Caldera of the Mount Warning Shield Volcano. rochureNew South Wales National Parks and Wildlife Service. 1990. This volcano last erupted around 23 million years ago. As the mountain's central vent cooled it shrank, forming a depression at the top that has greatly eroded. Today the vast areas that were part of the volcano include many mountains and ranges at some distance ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cook Island (New South Wales)
__NOTOC__ Cook Island, formerly Cooks Island, Turtle Island and Joong-urra-narrian, is an island in the Australian state of New South Wales located on the state's north coast about north-east of Fingal Head and south-east of the town of Tweed Heads. Description Geology and topography Cook Island is formed of “rocks from the Lismore Basalt Group, formed by lava flows from the Mount Warning Shield Volcano approximately 20 million years ago.” The Island is a “protrusion of eroded basalt” of a maximum height of above sea level and topped with a plateau. The western side of the island has a “gentle” slope while the remaining sides are “sheer cliffs” dropping to “low-lying rock shelves”. The top of the island and its western side are overlaid by a “shallow cover of topsoil.” A “semi-permanent freshwater basin” is located in the island's northern side. Climate In 2011, the average annual rainfall was reported as being . Access Access to the island is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fingal Head
Fingal Head is a village on the Tasman Sea coast in the far northeast of New South Wales, Australia, about 5 km south of the New South Wales and Queensland border. The village is often just called Fingal. The headland and the small off-shore Island ( Cook Island) were first sighted by James Cook about 17:00 on 16 May 1770 (log date and time). At the time of the 2016 census, Fingal Head had a population of 592 people. Geography The Tweed River, (named by John Oxley in October 1823) on the north coast of New South Wales runs northwards close to the coast for about 6 km before reaching its mouth just south of present-day Point Danger. A spit about 500–800 metres wide called "Letitia Spit" (named after the first ship to enter the river in July 1840) runs south for 2 km to Fingal Head. Longshore drift moves 500,000 cubic metres of sand per year northwards past Letitia Spit. The sand would fill the Tweed River entrance unpredictably and sometimes completely. In ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
