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Stobie Pole
A Stobie pole is a power line pole made of two steel joists held apart by a slab of concrete. It was invented by Adelaide Electric Supply Company engineer James Cyril Stobie (1895–1953). Stobie used readily available materials due to the shortage of suitably long, strong, straight and termite-resistant timber in South Australia. History In July 1924 the patent application for the pole design was submitted in both English and French, and accepted in November 1925. Stobie described his invention as"an improved pole adopted to be used for very many purposes, but particularly for carrying electric cables, telegraph wires... tconsists of two flanged beams of iron or steel, preferably rolled steel joist of 'H' or of channel sections, placed one beside the other with their flanges inward and preferably at a very slight angle one with the other and held together by means of tie bolts, the space between them being filled with cement concrete."Rob Linn, ''ETSA – The Story of Elec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Original 1924 Stobie Pole Next To Modern Pole - Wide Angle
Originality is the aspect of created or invented works that distinguish them from reproductions, clones, forgeries, or substantially derivative works. The modern idea of originality is according to some scholars tied to Romanticism, by a notion that is often called romantic originality.Smith (1924)Waterhouse (1926)Macfarlane (2007) The validity of "originality" as an operational concept has been questioned. For example, there is no clear boundary between "derivative" and "inspired by" or "in the tradition of." The concept of originality is both culturally and historically contingent. For example, unattributed reiteration of a published text in one culture might be considered plagiarism but in another culture might be regarded as a convention of veneration. At the time of Shakespeare, it was more common to appreciate the similarity with an admired classical work, and Shakespeare himself avoided "unnecessary invention". Royal Shakespeare Company (2007) ''The RSC Shakespeare - W ... [...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] |
Clifton Pugh
Clifton Ernest Pugh AO, (17 December 1924 – 14 October 1990) was an Australian artist and three-time winner of Australia's Archibald Prize. One of Australia's most renowned and successful painters, Pugh was strongly influenced by German Expressionism, and was known for his landscapes and portraiture. Important early group exhibitions include The Antipodeans, the exhibition for which Bernard Smith drafted a manifesto in support of Australian figurative painting, an exhibition in which Arthur Boyd, David Boyd, John Brack, Robert Dickerson, John Perceval and Charles Blackman showed; a joint exhibition with Barry Humphries, in which the two responded to Dadaism; and Group of Four at the Victorian Artists Society Gallery with Pugh, John Howley, Don Laycock and Lawrence Daws. Pugh was made an Officer of the Order of Australia in 1985 for service to Australian Art. In 1990 he was appointed as the Australian War Memorial's official artist at the 75th anniversary celebration ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ArtAsiaPacific
''ArtAsiaPacific'' is the longest running English-language periodical solely dedicated to covering contemporary art and culture from sixty-seven countries, territories, and Chinese Special Administrative Regions that it considers to be within Asia, the Pacific, and the Middle East. It is published six times a year and is distributed internationally. A regular issue includes feature-length articles on artists, themes or events; essays; profiles on artists or collectors; reviews of biennials, exhibitions, art publications and films; news including obituaries and appointments; auction and art fair reports; and previews of shows. ''ArtAsiaPacific'' produces an annual almanac edition, published in January, which surveys the past year in the 67 countries and territories covered in the magazine. In addition to news, exhibition, festival and country reports, the almanac includes reports on five outstanding artists from the previous year and one promising artist for the next year, and ess ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Prospect, South Australia
Prospect is the seat of the City of Prospect and an inner northern suburb of greater Adelaide. It is located north of Adelaide's centre. Surrounding suburbs include Kilburn, Fitzroy, Medindie and Devon Park. The suburb has boundaries of Main North Road to the East; Carter Street, Audley Avenue and Avenue Road to the South; The Gawler railway line to the west, and a line 400m north of Regency Road (Livingstone Avenue, Angwin Avenue and Henrietta Street) to the north. Prospect comprises a large majority of the land area (about five-sevenths, or 71%) of the City of Prospect council area. History The early Prospect Village was a private subdivision of sections 373 and 349 of the Hundred of Yatala, which intersected at the village centre (now St Helens Park and St Cuthbert's Anglican Church). To the new settlers, the undeveloped locality presented a "beautiful prospect", being described as "well timbered, with waving gum and shady trees". Thus the early township was dubbed ''Pr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ann Newmarch
Ann Foster Newmarch (9 June 1945 – 13 January 2022) , known as "Annie", was a South Australian painter, printmaker, sculptor and academic, with an international reputation, known for her community service to art, social activism and feminism. She co-founded the Progressive Art and the Women's Art Movement (WAM) in Adelaide, and is especially known for her iconic 1978 colour screenprint piece titled ''Women Hold Up Half the Sky!''. Early life and education Ann Foster Newmarch was born on 9 June 1945 in Adelaide, South Australia. She graduated with a teaching diploma from the Western Teachers College in 1966 after three years' attendance there, after which she studied philosophy and psychology at Flinders University in Adelaide for a year. She spent 1968 teaching art, at Croydon and Mitcham Girls High Schools, and became a lecturer at the South Australian School of Art in 1969, continuing there until 2000. In 1973 to 1974 Newmarch continued to study philosophy, and also to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wind Engineering
Wind engineering is a subset of mechanical engineering, structural engineering, meteorology, and applied physics that analyzes the effects of wind in the natural and the built environment and studies the possible damage, inconvenience or benefits which may result from wind. In the field of engineering it includes strong winds, which may cause discomfort, as well as extreme winds, such as in a tornado, hurricane or heavy storm, which may cause widespread destruction. In the fields of wind energy and air pollution it also includes low and moderate winds as these are relevant to electricity production and dispersion of contaminants. Wind engineering draws upon meteorology, fluid dynamics, mechanics, geographic information systems, and a number of specialist engineering disciplines, including aerodynamics and structural dynamics. The tools used include atmospheric models, atmospheric boundary layer wind tunnels, and computational fluid dynamics models. Wind engineering involves, among ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Structural Load
A structural load or structural action is a force, deformation, or acceleration applied to structural elements. A load causes stress, deformation, and displacement in a structure. Structural analysis, a discipline in engineering, analyzes the effects of loads on structures and structural elements. Excess load may cause structural failure, so this should be considered and controlled during the design of a structure. Particular mechanical structures—such as aircraft, satellites, rockets, space stations, ships, and submarines—are subject to their own particular structural loads and actions. Engineers often evaluate structural loads based upon published regulations, contracts, or specifications. Accepted technical standards are used for acceptance testing and inspection. Types Dead loads are static forces that are relatively constant for an extended time. They can be in tension or compression. The term can refer to a laboratory test method or to the normal usage of a material ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tensile Strength
Ultimate tensile strength (UTS), often shortened to tensile strength (TS), ultimate strength, or F_\text within equations, is the maximum stress that a material can withstand while being stretched or pulled before breaking. In brittle materials the ultimate tensile strength is close to the yield point, whereas in ductile materials the ultimate tensile strength can be higher. The ultimate tensile strength is usually found by performing a tensile test and recording the engineering stress versus strain. The highest point of the stress–strain curve is the ultimate tensile strength and has units of stress. The equivalent point for the case of compression, instead of tension, is called the compressive strength. Tensile strengths are rarely of any consequence in the design of ductile members, but they are important with brittle members. They are tabulated for common materials such as alloys, composite materials, ceramics, plastics, and wood. Definition The ultimate tensile streng ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shear Strength
In engineering, shear strength is the strength of a material or component against the type of yield or structural failure when the material or component fails in shear. A shear load is a force that tends to produce a sliding failure on a material along a plane that is parallel to the direction of the force. When a paper is cut with scissors, the paper fails in shear. In structural and mechanical engineering, the shear strength of a component is important for designing the dimensions and materials to be used for the manufacture or construction of the component (e.g. beams, plates, or bolts). In a reinforced concrete beam, the main purpose of reinforcing bar (rebar) stirrups is to increase the shear strength. Equations For shear stress \tau applies :\tau = \frac , where :\sigma_1 is major principal stress and :\sigma_3 is minor principal stress. In general: ductile materials (e.g. aluminum) fail in shear, whereas brittle materials (e.g. cast iron) fail in tension. See ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Buckling
In structural engineering, buckling is the sudden change in shape (deformation) of a structural component under load, such as the bowing of a column under compression or the wrinkling of a plate under shear. If a structure is subjected to a gradually increasing load, when the load reaches a critical level, a member may suddenly change shape and the structure and component is said to have ''buckled''. Euler's critical load and Johnson's parabolic formula are used to determine the buckling stress in slender columns. Buckling may occur even though the stresses that develop in the structure are well below those needed to cause failure in the material of which the structure is composed. Further loading may cause significant and somewhat unpredictable deformations, possibly leading to complete loss of the member's load-carrying capacity. However, if the deformations that occur after buckling do not cause the complete collapse of that member, the member will continue to support the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Angle Park, South Australia
Angle Park is a north-western suburb of Adelaide 10 km from the CBD, in the state of South Australia, Australia and falls under the City of Port Adelaide Enfield. It is adjacent to Wingfield, Mansfield Park, Ferryden Park, and Regency Park. The post code for Angle Park is 5010. It is bounded to the north by Grand Junction Road, west by Trafford Street, and to the east by Days Road and the North-South Motorway. History Angle Park was original a subdivision of sections 401 and 402 of the Hundred of Yatala. It was divided into 16 allotments by Henry Cowan (son of James Cowan) in the 1920s. Prior to the Second World War, Angle Park mainly consisted of pastures and open land. Its development as a residential area coincided with the post-war boom in the 1950s. The suburb was named in 1950 by the South Australian Housing Trust, after Angle Road, which traversed the suburb at a 45-degree angle north west from South Road, near Kateena Street, to the north west corner o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
