Swan Reach, South Australia
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Swan Reach, South Australia
Swan Reach is a river port in South Australia 127 km north-east of Adelaide on the Murray River between Blanchetown, South Australia, Blanchetown and Mannum, South Australia, Mannum in South Australia. It is on the Bank (geography), left bank of the river. The Swan Reach Ferry is a cable ferry crossing operated by the Government of South Australia, state government as part of the state's road network. Swan Reach, with all parts below Lock #1, is also one of the lowest parts of the river. It is currently (2009–2010) about 1.5 metres below its normal level. At the , Swan Reach had a population of 283. History Swan Reach was first settled in the 1850s and was originally the largest of five sheep and cattle stations in the area. It soon became one of the first riverboat ports in South Australia and was a loading port for grain and wool. Swan Reach Mission was established by the United Aborigines Mission (UAM) in 1926 to provide a Christian education to Aboriginal Australia ...
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Electoral District Of Chaffey
An election is a formal group decision-making process by which a population chooses an individual or multiple individuals to hold public office. Elections have been the usual mechanism by which modern representative democracy has operated since the 17th century. Elections may fill offices in the legislature, sometimes in the executive and judiciary, and for regional and local government. This process is also used in many other private and business organisations, from clubs to voluntary associations and corporations. The global use of elections as a tool for selecting representatives in modern representative democracies is in contrast with the practice in the democratic archetype, ancient Athens, where the elections were considered an oligarchic institution and most political offices were filled using sortition, also known as allotment, by which officeholders were chosen by lot. Electoral reform describes the process of introducing fair electoral systems where they are n ...
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Stolen Generation
The Stolen Generations (also known as Stolen Children) were the children of Australian Aboriginal and Torres Strait Islander descent who were removed from their families by the Australian federal and state government agencies and church missions, under acts of their respective parliaments. The removals of those referred to as "half-caste" children were conducted in the period between approximately 1905 and 1967, although in some places mixed-race children were still being taken into the 1970s. Official government estimates are that in certain regions between one in ten and one in three Indigenous Australian children were forcibly taken from their families and communities between 1910 and 1970. Emergence of the child removal policy Numerous 19th and early 20th-century contemporaneous documents indicate that the policy of removing mixed-race Aboriginal children from their mothers related to an assumption that the Aboriginal peoples were dying off. Given their catastrophic popu ...
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River Murray International Dark Sky Reserve
Swan Reach is a river port in South Australia 127 km north-east of Adelaide on the Murray River between Blanchetown and Mannum in South Australia. It is on the left bank of the river. The Swan Reach Ferry is a cable ferry crossing operated by the state government as part of the state's road network. Swan Reach, with all parts below Lock #1, is also one of the lowest parts of the river. It is currently (2009–2010) about 1.5 metres below its normal level. At the , Swan Reach had a population of 283. History Swan Reach was first settled in the 1850s and was originally the largest of five sheep and cattle stations in the area. It soon became one of the first riverboat ports in South Australia and was a loading port for grain and wool. Swan Reach Mission was established by the United Aborigines Mission (UAM) in 1926 to provide a Christian education to Aboriginal children. It was closed in 1946 due to frequent flooding of the area, and the UAM opened the Gerard Mission ne ...
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Passive Radar
Passive radar systems (also referred to as passive coherent location, passive surveillance systems, and passive covert radar) encompass a class of radar systems that detect and track objects by processing reflections from non-cooperative sources of illumination in the environment, such as commercial broadcast and communications signals. It is a specific case of bistatic radar, the latter also including the exploitation of cooperative and non-cooperative radar transmitters. Introduction Conventional radar systems comprise a colocated transmitter and receiver, which usually share a common antenna to transmit and receive. A pulsed signal is transmitted and the time taken for the pulse to travel to the object and back allows the range of the object to be determined. In a passive radar system, there is no dedicated transmitter. Instead, the receiver uses third-party transmitters in the environment and measures the time difference of arrival between the signal arriving directly from ...
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Murray Mallee
The Murray Mallee is the grain-growing and sheep-farming area of South Australia bounded to the north and west by the Murray River (in South Australia, "River Murray"), to the east by the Victorian border, and extending about 50 km south of the Mallee Highway. The Murray Mallee area is predominantly a vast plain of low elevation, with sandhills and gentle undulating sandy rises, interspersed by flats. The annual rainfall ranges from approximately 250 mm in the north to 400 mm further south. The area was very lightly populated up until the beginning of the 20th century, with marginal pastoral runs of sheep at low stocking rates. Artesian water was discovered at moderate depth, and railways opened to make shipping of grain feasible. The first railway was the Pinnaroo line in 1906 from Tailem Bend on the main Melbourne–Adelaide railway. The success of this line led to construction further north of the Brown's Well railway line in 1913, and before that line had ...
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Satellite
A satellite or artificial satellite is an object intentionally placed into orbit in outer space. Except for passive satellites, most satellites have an electricity generation system for equipment on board, such as solar panels or radioisotope thermoelectric generators (RTGs). Most satellites also have a method of communication to ground stations, called Transponder (satellite communications), transponders. Many satellites use a Satellite bus, standardized bus to save cost and work, the most popular of which is small CubeSats. Similar satellites can work together as a group, forming Satellite constellation, constellations. Because of the high launch cost to space, satellites are designed to be as lightweight and robust as possible. Most communication satellites are radio Broadcast relay station, relay stations in orbit and carry dozens of transponders, each with a bandwidth of tens of megahertz. Satellites are placed from the surface to orbit by launch vehicles, high enough to ...
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Observatory
An observatory is a location used for observing terrestrial, marine, or celestial events. Astronomy, climatology/meteorology, geophysical, oceanography and volcanology are examples of disciplines for which observatories have been constructed. Historically, observatories were as simple as containing an astronomical sextant (for measuring the distance between stars) or Stonehenge (which has some alignments on astronomical phenomena). Astronomical observatories Astronomical observatories are mainly divided into four categories: space-based, airborne, ground-based, and underground-based. Ground-based observatories Ground-based observatories, located on the surface of Earth, are used to make observations in the radio and visible light portions of the electromagnetic spectrum. Most optical telescopes are housed within a dome or similar structure, to protect the delicate instruments from the elements. Telescope domes have a slit or other opening in the roof that can be opened during ...
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Space Domain Awareness
Space domain awareness is the study and monitoring of satellites orbiting the earth. It involves the detection, tracking, cataloging and identification of artificial objects, i.e. active/inactive satellites, spent rocket bodies, or fragmentation debris. Aims Space domain awareness accomplishes the following: * Predicting when and where a decaying space object will re-enter the Earth's atmosphere; * Preventing a returning space object, which to radar looks like a missile, from triggering a false alarm in missile-attack warning sensors; * Charting the present position of space objects and plot their anticipated orbital paths; * Detecting new man-made objects in space; * Producing a running catalogue of man-made space objects; * Determining which country owns a re-entering space object; * Informing countries whether or not objects may interfere with satellites and International Space Station orbits; * Providing data for future anti-satellite weapons systems. Systems Systems in ...
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Western Sydney University
Western Sydney University, formerly the University of Western Sydney, is an Australian multi-campus university in the Greater Western region of Sydney, Australia. The university in its current form was founded in 1989 as a federated network university with an amalgamation between the Nepean College of Advanced Education and the Hawkesbury Agricultural College. The Macarthur Institute of Higher Education was incorporated in the university in 1989. In 2001, the University of Western Sydney was restructured as a single multi-campus university rather than as a federation. In 2015, the university underwent a rebranding which resulted in a change in name from the University of Western Sydney to Western Sydney University. It is a provider of undergraduate, postgraduate, and higher research degrees with campuses in Bankstown, Blacktown, Campbelltown, Hawkesbury, Liverpool, Parramatta, and Penrith. In 2022, it was ranked in the top 201–250 in the world and jointly 11th in Austral ...
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Silentium Defence
Silentium is a Finnish gothic metal band. The band was formed in 1995 and it originates from Jämsänkoski, Finland. Keyboardist Sami Boman and original vocalist Matti Aikio created Silentium by adding violin player Jani Laaksonen, guitar players Toni Lahtinen and Juha Lehtioksa and drummer Jari Ojala into the line-up of their previous band Funeral. Silentium's first demos and EPs were released in tape format, and their albums have only been released in Europe and some Asian countries, although Silentium's last single "Dead Silent" has been uploaded to some legal Finnish music websites for worldwide download. The addition of singer Riina Rinkinen to the band in 2006 was welcomed by Canadian and German reviewers. Members Current members * Juha Lehtioksa - guitars (1995–present) * Sami Boman - keyboards, add. brass samples, backing vocals (1995–present) * Riina Rinkinen - female vocals (2004–present) * Janne Ojala - drums (1999–2004, 2014–present) * Aapeli Kivimäki ...
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Light Pollution
Light pollution is the presence of unwanted, inappropriate, or excessive use of artificial Visible spectrum, lighting. In a descriptive sense, the term ''light pollution'' refers to the effects of any poorly implemented lighting, during the day or night. Light pollution can be understood not only as a phenomenon resulting from a specific source or kind of pollution, but also as a contributor to the wider, collective impact of various sources of pollution. Although this type of pollution can exist throughout the day, its effects are magnified during the night with the contrast of darkness. It has been estimated that 83 percent of the world's people live under light-polluted skies and that 23 percent of the world's land area is affected by skyglow. The area affected by artificial illumination continues to increase. A major side-effect of urbanization, light pollution is blamed for compromising health, disrupting ecosystems, and spoiling aesthetic environments. Globally, it has incr ...
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International Dark-Sky Association
The International Dark-Sky Association (IDA) is a United States-based non-profit organization incorporated in 1988 by founders David Crawford, a professional astronomer, and Tim Hunter, a physician/amateur astronomer. The mission of the IDA is "to preserve and protect the night time environment and our heritage of dark skies through quality outdoor lighting." Light pollution is the result of outdoor lighting that is not properly shielded, allowing light shine into the eyes and night sky. Direct light that shines into the eyes is called glare, and light directed into the night sky above the horizon causes skyglow. Lighting can also cause light trespass when it enters areas where unwanted (e.g. a neighbor's yard and windows). IDA was the first organization in the dark-sky movement, and is currently the largest. Principal approach IDA's principal approach is to raise awareness about the value of dark, star-filled night skies and encourage their protection and restoration through e ...
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