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David Shearer (engineer)
J. & D. Shearer was an engineering and farm machinery manufacturer based in Mannum between 1882 and 1912, founded by John (1845–1932) and David Shearer (1850–1936), and continued separately as John Shearer & Sons of Kilkenny, South Australia, and David Shearer & Co. (later David Shearer Ltd.) of Mannum. History John and David Shearer were two of a family of six children born to Peter Shearer (c. 1808 – 31 July 1891) and his wife Mary (c. 1814 – 28 May 1908) in Orkney. The family migrated to South Australia in the ''Omega'', arriving in South Australia on 24 August 1852, living first at Port Adelaide, where their father pursued his trade of stonemason, then at Clare, where the youngest boys attended the local school. At the age of twelve David left to work on a property at Hoyleton, and after two years enrolled with J. S. Cole's Stanley Grammar School in Watervale for a year's tuition; the fees paid for out of his savings. He then worked for two years at his brother ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mannum, South Australia
Mannum is a historic town on the west bank of the Murray River in South Australia, east of Adelaide. Mannum is the seat of the Mid Murray Council, and is situated in the state electoral district of Hammond and the federal Division of Barker. History The Aboriginal inhabitants and traditional owners of the vicinity now called Mannum were the Nganguruku ( Nganguruga), part of the larger Ngayawung community. In 1830 the Sturt expedition passed through the area by boat. No Europeans visited again until 25 January 1838 when the expedition of Dr George Imlay and John Hill, on horseback from Adelaide, became the first to reach the Murray overland within South Australia. They noted that the thriving Indigenous population were very keen fisherfolk. The first European settlement in the area was in 1840. The first ship (a side-wheel paddle steamer) built on the Murray River was launched at Mannum by William Randell in 1852. A shipbuilding industry continued in Mannum until into th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stripper (agriculture)
Stripper is a type of harvesting machine designed for harvesting grain using the method of stripping standing crops. Unlike a conventional combine harvester, this machine collects grain by stripping the spikes only, without cutting the culms at their base. Harvesting grain by stripping was known as early as the 1st century AD but was later abandoned. Today, it is used on a small scale thanks to the implementation of specialized harvesting headers in combine harvesters. The stripper was common in Australia in the late 19th and early 20th century. John Ridley is now accepted as its inventor, though John Wrathall Bull argued strongly for the credit. Description Harvesting is the final stage of crop cultivation. It should be done as quickly as possible after the grain has reached maturity. Leaving the harvest in the field can lead to partial or even total loss of its value due to adverse weather conditions, fires, and wildlife. The speed of harvesting depends on the throughput o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Adelaide City Centre
Adelaide city centre () is the inner city locality of Adelaide, Greater Adelaide, the capital city of South Australia. It is known by locals simply as "the City" or "Town" to distinguish it from Greater Adelaide and from the City of Adelaide local government area (which also includes North Adelaide and from the Adelaide Park Lands, Park Lands around the whole city centre). The residential population was 18,202 in the , with a local worker population of 130,404. Adelaide city centre was planned in 1837 on a Greenfield land, greenfield site following a Grid plan, grid layout, with streets running at right angles to each other. It covers an area of and is surrounded by of park lands.The area of the park lands quoted is based, in the absence of an official boundary between the City and North Adelaide, on an east–west line past the front entrance of Adelaide Oval. Within the city are five parks: Victoria Square, Adelaide, Victoria Square in the exact centre and four other, smal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Steam Car
A steam car is a car (automobile) propelled by a steam engine. A steam engine is an external combustion engine (ECE), whereas the gasoline and diesel engines that eventually became standard are internal combustion engines (ICE). ECEs have a lower thermal efficiency, but carbon monoxide production is more readily regulated. The first experimental steam-powered cars were built in the 18th and 19th centuries, but it was not until after Richard Trevithick had developed the use of high-pressure steam around 1800 that mobile steam engines became a practical proposition. By the 1850s there was a flurry of new steam car manufacturers. Development was hampered by adverse legislation (the UK Locomotive Acts from the 1860s) as well as the rapid development of internal combustion engine technology in the 1900s, leading to the commercial demise of steam-powered vehicles. Relatively few remained in use after the Second World War. Many of these vehicles were acquired by enthusiasts for preser ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alfred Hannaford
Alfred Hannaford (1890 – 25 August 1969) was a South Australian inventor and industrialist, remembered for his wheat pickling machines. History Alfred Hannaford was a son of John (17 February 1849 – 25 May 1909) and Elizabeth Hannaford, née Shearer (1852 – c. 6 November 1924), and lived at "Wattle Vale" farm near Riverton, South Australia; she moved to 57 Fourth Avenue St. Peters before 1924. Her family relationship with J. & D. Shearer, if any, has not yet been determined. He was educated at Riverton Public School then worked on the family farm. Some time before 1915 he developed a wheat pickling machine, which found considerable acceptance among practical farmers. The machine was capable of treating eight to twelve bags of wheat with bluestone (copper sulphate) solution and separating smut and other contamination from whole grain prior to planting. The apparatus was based on a trough with a copper Archimedean screw to transport the grain from the input hopper to the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Henry Hay Mildred
Henry Hay Mildred (17 August 1839 – 25 December 1920) was a lawyer and politician in the colony and State of South Australia. History Henry was born in Strangways Terrace, North Adelaide, just two years after the arrival in South Australia of his parents Elizabeth and Henry Mildred in the ''South Australian''. He was educated at Miss Hillier's School on South Terrace and from the age of nine at St. Peter's College, which was then conducted in rooms at the rear of Trinity Church. On leaving school he was employed at the law firm of Richman and Wigley in Hindley Street, at that time the centre of business activity in the city. Later he joined the firm of Belt, Cullen & Wigley, and was articled to W. C. Belt, a barrister of the Inner Temple, London. He was called to the South Australian Bar on 22 March 1862. During his legal career Mildred was associated with J. J. Beare, and later with a nephew, C. Herbert. He retired around 1912 He represented House of Assembly House of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Woodville, South Australia
Woodville is a suburb of Adelaide, situated about north-west of the Adelaide city centre. It lies within the City of Charles Sturt. The Postal code, postcode of Woodville is 5011. Woodville is bound by Cheltenham Parade to the west, Torrens Road to the north, Port Road to the south and Park Street to the east, excluding the area of the former Cheltenham Park Racecourse, now the suburb of St Clair, South Australia, St Clair. The population was 2,180 at the 2021 Australian census. The Church of St Margaret of Scotland, on the corner of Port and Woodville Roads, is a state heritage-listed building, and there are many other buildings of historical and architectural significance. History 19th century Before the colonisation of South Australia in 1836, the indigenous peoples, indigenous Kaurna people lived on the land now called Woodville. The Woodville area is believed to have been settled by Europeans because it was more or less halfway between the Adelaide city centre and Port Ad ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oodnadatta, South Australia
Oodnadatta is a small, remote outback town and locality in the Australian state of South Australia, located north-north-west of the state capital of Adelaide by road or direct, at an altitude of . The unsealed Oodnadatta Track, an outback road popular with tourists, runs through the town. Town facilities include a hotel, caravan park, post office, general stores, police station, hospital, fuel and minor mechanical repairs. The old railway station now serves as a museum. From the 1880s to the 1930s, Oodnadatta was a base for camel drivers and their animals, which provided cartage when the railway was under construction and along outback tracks before roads were established. After the railway line was lifted, Oodnadatta's role changed from that of a government service centre and supply depot for surrounding pastoral properties to a residential freehold town for Aboriginal families who, moving from cattle work, bought empty houses as their railway employee occupants left. Orig ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hergott Springs, South Australia
Marree ( , formerly Hergott Springs) is a small town located in the north of South Australia. It is located north of Adelaide at the junction of the Oodnadatta Track and the Birdsville Track, above sea level. Marree is an important service centre for the large sheep and cattle stations in north-east South Australia as well as a stopover destination for tourists travelling along the Birdsville or Oodnadatta Tracks. The area is the home of the Dieri Aboriginal people. The major areas of employment are mining, agriculture and accommodation services. The town was home to Australia's first mosque, which was made of mud brick and built by the Afghan cameleers employed at Marree's inception. At the turn of the 20th century the town was divided in two, with Europeans on one side and Afghans and Aboriginals on the other. History and etymology The first European to explore the area was Edward John Eyre, who passed through in 1840. In 1859, explorer John McDouall Stuart visited the are ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yongala, South Australia
Yongala is a small town located in the state of South Australia, Australia, and is located along on the Clare-Peterborough Road (B79), 238 km (148 mi) from Adelaide, the state capital. Etymology According to the Manning index, the name comes from an Aboriginal phrase ''yongla-cowie'' — "good water place", although he gives another reading as "brother". Suggestions that it could mean "broad water" may be discounted. History The Hundred of Yongala was proclaimed in the County of Dalhousie in 1871, one of the first of the twelve hundreds to be declared in that county, opening up the area for closer settlement and small-scale cultivation. The town was proclaimed on 23 May 1876. Within five years there was a population of 353 as developers anticipated the connection of a railway. Instead, the railway was built through the nearby town of Peterborough. The SS ''Yongala'' launched in 1903 and owned by the Adelaide Steamship Company was named after the town. It sank in a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Refractor
A refracting telescope (also called a refractor) is a type of optical telescope that uses a lens as its objective to form an image (also referred to a dioptric telescope). The refracting telescope design was originally used in spyglasses and astronomical telescopes but is also used for long-focus camera lenses. Although large refracting telescopes were very popular in the second half of the 19th century, for most research purposes, the refracting telescope has been superseded by the reflecting telescope, which allows larger apertures. A refractor's magnification is calculated by dividing the focal length of the objective lens by that of the eyepiece. Refracting telescopes typically have a lens at the front, then a long tube, then an eyepiece or instrumentation at the rear, where the telescope view comes to focus. Originally, telescopes had an objective of one element, but a century later, two and even three element lenses were made. Refracting telescopes use technology tha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Objective Glass
In optical engineering, an objective is an optical element that gathers light from an object being observed and focuses the light rays from it to produce a real image of the object. Objectives can be a single lens or mirror, or combinations of several optical elements. They are used in microscopes, binoculars, telescopes, cameras, slide projectors, CD players and many other optical instruments. Objectives are also called object lenses, object glasses, or objective glasses. Microscope objectives The objective lens of a microscope is the one at the bottom near the sample. At its simplest, it is a very high-powered magnifying glass, with very short focal length. This is brought very close to the specimen being examined so that the light from the specimen comes to a focus inside the microscope tube. The objective itself is usually a cylinder containing one or more lenses that are typically made of glass; its function is to collect light from the sample. Magnification One of the mo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
