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Ursynów M-6
Ursynów M-6 was a prototype hovercraft designed for farming exploitation between 1967 and 1971 at the Warsaw University of Life Sciences. The project was cancelled following numerous issues noted during its testing. History In the 1960s, at Warsaw University of Life Sciences, as part of project to develop a hovercraft for farming exploitation, the team led by professor Nowacki, and with engineer Andrzej Moldenhawer, begun designing concepts for Ursynów M-6.Andrzej Moldenhawer: "Poduszkowiec rolniczy 'Ursynów M-6'". ''Młody Technik'', no. 3/1967. Warsaw: Instytut Wydawniczy Nasza Księgarnia, 1967, p. 44–53. (in Polish) Its specifications and functional model were then made by a team at the Warsaw Institute of Aviation, and later with further development and constructed at the university. Its tests begun in 1971. The machine was noted to have numerous issues, including bad stearing, low speed, and blew large quantities of dust in the air.Andrzej Moldenhawer: "'Ursynów M-6' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ursynów M6 Hovercraft
Ursynów () is a List of districts and neighbourhoods of Warsaw, district of the city of Warsaw, Poland. It has an area of 43.79 km2 (16.88 sq mi), and in 2023, it was inhabited by 149,775 people, making it the 5th most populous and 3rd largest district of the city. Located in its western part, it is its southernmost district, bordering Włochy to the west, Mokotów to the north, Wilanów, to the east, with its southern and part of western border forming the city boundary. There, it borders municipalities of Gmina Lesznowola, Lesznowola in Piaseczno County, and Gmina Raszyn, Raszyn in Pruszków County. The district is dominated by residential areas, with its east predominantly featuring high-rise multifamily housing such as in neighbourhoods of Jary, Warsaw, Jary, and Stokłosy in central north, Imielin, Warsaw, Imielin, Na Skraju, and Stary Imielin, West Ursynów in the northeast, and Natolin and Kabaty in the central east. The west is dominated by low-rise single-family hous ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Warsaw University Of Life Sciences
The Warsaw University of Life Sciences (, SGGW) is the largest agricultural university in Poland, established in 1816 in Warsaw. It employs over 2,600 staff including over 1,200 academic educators. The University is since 2005 a member of the Euroleague for Life Sciences (ELLS) which was established in 2001. The SGGW offers some 37 different fields of study, 13 faculties in Agricultural Sciences, Economic Sciences, Humanities, Technical as well as Life Sciences. Its Agriculture and Forestry and Veterinary Medicine have been ranked as top 41 and 51-70 in the world on QS top university ranking 2023. History On 23 September 1816 the School of Agronomy was founded at Marymont and was accommodated in the palace of Marie Casimire Louise de La Grange d'Arquien. Branches were established at Bielany, Ruda, Wawrzyszew and Buraków. An Institute of Veterinary Medicine was established at Rządowa, followed by the Institute of Rural Economy and Forestry in 1840. As Poland was ruled by t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hovercraft
A hovercraft (: hovercraft), also known as an air-cushion vehicle or ACV, is an amphibious craft capable of travelling over land, water, mud, ice, and various other surfaces. Hovercraft use blowers to produce a large volume of air below the Hull (watercraft), hull, or air cushion, that is slightly above atmospheric pressure. The pressure difference between the higher-pressure air below the hull and lower pressure ambient air above it produces lift, which causes the hull to float above the running surface. For stability reasons, the air is typically blown through slots or holes around the outside of a disk- or oval-shaped platform, giving most hovercraft a characteristic rounded-rectangle shape. The first practical design for hovercraft was derived from a British invention in the 1950s. They are now used throughout the world as specialised transports in disaster relief, coastguard, military and survey applications, as well as for sport or passenger service. Very large version ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Centrifugal Fan
A centrifugal fan is a mechanical device for moving air or other gases in a direction perpendicular to the axis of rotation of the fan. Centrifugal fans often contain a ducted fan, ducted housing to direct outgoing air in a specific direction or across a heat sink; such a fan is also called a blower, blower fan, or squirrel-cage fan (because it looks like a hamster wheel). Tiny ones used in computers are sometimes called biscuit blowers. These fans move air from the rotating inlet of the fan to an outlet. They are typically used in ducted applications to either draw air through ductwork/heat exchanger, or push air through similar impellers. Compared to standard axial fans, they can provide similar air movement from a smaller fan package, and overcome higher Fluid dynamics, resistance in air streams. Centrifugal fans use the kinetic energy of the impellers to move the air stream, which in turn moves against the resistance caused by ducts, dampers and other components. Centrifu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wartburg (marque)
Wartburg was an East German automotive brand used for cars manufactured at VEB Automobilwerk Eisenach. Origins of the brand date back to 1898. The name derives from the Wartburg on one of the hills overlooking the town of Eisenach where the cars were made. From the 1950s until the late 1980s, Wartburgs featured a three-cylinder two-stroke engine with only seven major moving parts (three pistons, three connecting rods and one crankshaft). Production ended in April 1991, and the factory was acquired by Opel. History First usage of name The marque dates back to 1898 when a car made by Automobilwerk Eisenach was named the Wartburgwagen. It consisted of a cane chair to seat two people, four mudguards, two headlamps and a two-cylinder, 765-cc engine. Its top speed was . The name was dropped in 1904 when the company changed hands but re-appeared briefly in the early 1930s on the BMW 3/15 DA-3 Wartburg, which was BMW's first sports car.BMW 3/15 PS, 315/1 and 319/1 - early roads ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hovercraft
A hovercraft (: hovercraft), also known as an air-cushion vehicle or ACV, is an amphibious craft capable of travelling over land, water, mud, ice, and various other surfaces. Hovercraft use blowers to produce a large volume of air below the Hull (watercraft), hull, or air cushion, that is slightly above atmospheric pressure. The pressure difference between the higher-pressure air below the hull and lower pressure ambient air above it produces lift, which causes the hull to float above the running surface. For stability reasons, the air is typically blown through slots or holes around the outside of a disk- or oval-shaped platform, giving most hovercraft a characteristic rounded-rectangle shape. The first practical design for hovercraft was derived from a British invention in the 1950s. They are now used throughout the world as specialised transports in disaster relief, coastguard, military and survey applications, as well as for sport or passenger service. Very large version ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Institute Of Aviation, Warsaw
An institute is an organizational body created for a certain purpose. They are often research organisations (research institutes) created to do research on specific topics, or can also be a professional body. In some countries, institutes can be part of a university or other institutions of higher education, either as a group of departments or an autonomous educational institution without a traditional university status such as a "university institute", or institute of technology. In some countries, such as South Korea and India, private schools are sometimes referred to as institutes; also, in Spain, secondary schools are referred to as institutes. Historically, in some countries, institutes were educational units imparting vocational training and often incorporating libraries, also known as mechanics' institutes. The word "institute" comes from the Latin word ''institutum'' ("facility" or "habit"), in turn derived from ''instituere'' ("build", "create", "raise" or "educat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Epoxy
Epoxy is the family of basic components or Curing (chemistry), cured end products of epoxy Resin, resins. Epoxy resins, also known as polyepoxides, are a class of reactive prepolymers and polymers which contain epoxide groups. The epoxide functional group is also collectively called ''epoxy''. The IUPAC name for an epoxide group is an oxirane. Epoxy resins may be reacted (cross-linked) either with themselves through catalytic homopolymerisation, or with a wide range of co-reactants including polyfunctional amines, acids (and acid anhydrides), phenols, alcohols and thiols (sometimes called mercaptans). These co-reactants are often referred to as hardeners or curatives, and the cross-linking reaction is commonly referred to as Curing (chemistry), curing. Reaction of polyepoxides with themselves or with polyfunctional hardeners forms a thermosetting polymer, often with favorable mechanical properties and high thermal and chemical resistance. Epoxy has a wide range of application ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Glass Fiber
Glass fiber ( or glass fibre) is a material consisting of numerous extremely fine fibers of glass. Glassmakers throughout history have experimented with glass fibers, but mass manufacture of glass fiber was only made possible with the invention of finer machine tooling. In 1893, Edward Drummond Libbey exhibited a dress at the World's Columbian Exposition incorporating glass fibers with the diameter and texture of silk fibers. Glass fibers can also occur naturally, as Pele's hair. Glass wool, which is one product called "fiberglass" today, was invented some time between 1932 and 1933 by Games Slayter of Owens-Illinois, as a material to be used as thermal building insulation. It is marketed under the trade name Fiberglas, which has become a genericized trademark. Glass fiber, when used as a thermal insulating material, is specially manufactured with a bonding agent to trap many small air cells, resulting in the characteristically air-filled low-density "glass wool" family of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Horse Power
Horsepower (hp) is a unit of measurement of power, or the rate at which work is done, usually in reference to the output of engines or motors. There are many different standards and types of horsepower. Two common definitions used today are the imperial horsepower as in "hp" or "bhp" which is about , and the metric horsepower as in "cv" or "PS" which is approximately . The electric horsepower "hpE" is exactly , while the boiler horsepower is 9809.5 or 9811 watts, depending on the exact year. The term was adopted in the late 18th century by Scottish engineer James Watt to compare the output of steam engines with the power of draft horses. It was later expanded to include the output power of other power-generating machinery such as piston engines, turbines, and electric motors. The definition of the unit varied among geographical regions. Most countries now use the SI unit watt for measurement of power. With the implementation of the EU Directive 80/181/EEC on 1 January 2010, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gear Train
A gear train or gear set is a machine element of a mechanical system formed by mounting two or more gears on a frame such that the teeth of the gears engage. Gear teeth are designed to ensure the pitch circles of engaging gears roll on each other without slipping, providing a smooth transmission of rotation from one gear to the next. Features of gears and gear trains include: * The gear ratio of the pitch circles of mating gears defines the speed ratio and the mechanical advantage of the gear set. * A planetary gear train provides high gear reduction in a compact package. * It is possible to design gear teeth for gears that are non-circular, yet still transmit torque smoothly. * The speed ratios of chain and belt drives are computed in the same way as gear ratios. See bicycle gearing. The transmission of rotation between contacting toothed wheels can be traced back to the Antikythera mechanism of Greece and the south-pointing chariot of China. Illustrations by the Renaissan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vehicles Introduced In 1971
A vehicle () is a machine designed for self-propulsion, usually to transport people, cargo, or both. The term "vehicle" typically refers to land vehicles such as human-powered vehicles (e.g. bicycles, tricycles, velomobiles), animal-powered transports (e.g. horse-drawn carriages/wagons, ox carts, dog sleds), motor vehicles (e.g. motorcycles, cars, trucks, buses, mobility scooters) and railed vehicles (trains, trams and monorails), but more broadly also includes cable transport (cable cars and elevators), watercraft (ships, boats and underwater vehicles), amphibious vehicles (e.g. screw-propelled vehicles, hovercraft, seaplanes), aircraft (airplanes, helicopters, gliders and aerostats) and space vehicles (spacecraft, spaceplanes and launch vehicles). This article primarily concerns the more ubiquitous land vehicles, which can be broadly classified by the type of contact interface with the ground: wheels, tracks, rails or skis, as well as the non-contact technologies such as ma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
