Portal:Technology And Applied Sciences
The Technology Portal
Technology is the application of conceptual knowledge to achieve practical goals, especially in a reproducible way. The word technology can also mean the products resulting from such efforts, including both tangible tools such as utensils or machines, and intangible ones such as software. Technology plays a critical role in science, engineering, and everyday life.
Technological advancements have led to significant changes in society. The earliest known technology is the stone tool, used during prehistory, followed by the control of fire—which in turn contributed to the growth of the human brain and the development of language during the Ice Age, according to the cooking hypothesis. The invention of the wheel in the Bronze Age allowed greater travel and the creation of more complex machines. More recent technological inventions, including the printing press, telephone, and the Internet, have lowered barriers to communication and ushered in the knowledge economy. (Full article...)
Recognized articles -
Entries here consist of Good and Featured articles, which meet a core set of high editorial standards.
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Teesside Energy from Waste plant (also known as Teesside WTE power station or Haverton Hill incinerator) is a municipal waste incinerator and waste-to-energy power station, which provides 29.2 megawatts (MW) of electricity for the National Grid by burning 390,000 tonnes of household and commercial waste a year. It is located on the River Tees at Haverton Hill, east of Billingham in North East England. Developed and built by NEM, a subsidiary of Northumbrian Water, the initial plant replaced the Portrack Incinerator and opened in 1998. Subsequently, the facility became part of SITA, now Suez.
The station is one of the most modern incinerators operating in England; it is noted for its innovative operation. In 2009, an extension was completed at the station, with the construction of an extra furnace line and a rail head. This increased the capacities of the plant from 19.2 MW and 250,000 tonnes of waste per year to its current levels. The plant initially received waste from Teesside and North Tyneside, but this was extended to include Northumberland with the 2009 extension. (Full article...)
M-106 is a state trunkline highway in the Lower Peninsula of the US state of Michigan in and near the city of Jackson. M-106 travels in a southwest-to-northeast direction from Jackson to Gregory at a junction with M-36 just a few miles northwest of Hell. The highway was first designated in 1928 running north out of downtown Jackson. It connected U.S. Highway 12 (US 12) to the state prison and Bunkerhill Road. A pair of changes in the early 1930s resulted in the extension eastward to Gregory. From the 1960s until the early years of the 21st century, a section of M-106 in downtown Jackson was routed along one-way streets. (Full article...)
The Gardermoen Line (Norwegian: Gardermobanen) is a high-speed railway line between Oslo and Eidsvoll, Norway, running past Lillestrøm and Oslo Airport, Gardermoen. The line is 64 kilometres (40 mi) long and replaced the older Hoved Line as the main line north-east of Oslo. The older Hoved Line now handles commuter and freight traffic, while the Gardermoen Line handles high-speed passenger trains and freight trains laden with jet fuel for the airport. Both lines are owned by Bane NOR.
The line was opened in 1998, at the same time as the airport that gave the line its name. It is used by the Flytoget airport express train service as well as express trains by Vy. It is the only high-speed railway in Norway, with a maximum permitted speed of 210 km/h (130 mph). Most of the line between Oslo and Lillestrøm is through the 14.580-kilometre-long (9.060 mi; 15,945 yd) Romeriksporten tunnel—the second longest railway tunnel in Norway. The decision to build the line was made in 1992; construction started two years later. The line was subjected to severe criticism during construction when the Romerike Tunnel sprung severe leaks due to hurried construction. As a result, the tunnel was opened a year after the rest of the line. (Full article...)
M-137 was a state trunkline highway in the US state of Michigan that served as a spur route to the Interlochen Center for the Arts and Interlochen State Park. It started south of the park and ran north between two lakes in the area and through the community of Interlochen to US Highway 31 (US 31) in Grand Traverse County. The highway was first shown without a number label on maps in 1930 and labeled after an extension the next year. The highway's current routing was established in the 1950s. Jurisdiction of the roadway was transferred from the Michigan Department of Transportation (MDOT) to the Grand Traverse County Road Commission in June 2020, and the highway designation was decommissioned in the process; signage was removed by August 2020 to reflect the changeover. (Full article...)
PS Keystone State (also spelled Key Stone State) was a wooden-hulled American paddle steamer in service between 1849 and 1861. She was built in 1848 in Buffalo, New York, by Bidwell & Banta for ship-owner Charles M. Reed of Erie, Pennsylvania, and operated as part of his "Chicago Line". A luxuriously furnished palace steamer, she operated between Buffalo and Chicago, Illinois, while also making stops at various other ports. She was built for the passenger and package freight trade, frequently carrying both wealthy passengers and European immigrants who desired to settle in the Midwestern United States. Due to the Panic of 1857, Keystone State and several other paddle steamers were laid up. When the American Civil War began in 1861; she was refurbished, and put back into service.
On November 8, 1861, Keystone State left Detroit for Milwaukee, Wisconsin, under the command of Captain Wilkes Travers. Although her cargo manifest listed her cargo as farm machinery, it was rumored that this was a cover for military supplies and gold. She was last seen off Port Austin, Michigan, struggling in a storm, and eventually sank with the loss of all 33 people on board. Keystone State's fate was unknown for over a week, until pieces of wreckage washed ashore. (Full article...)
Winschoten (Dutch pronunciation: [ˈʋɪnsxoːtə(n)] ; abbreviation: Ws) is an unstaffed railway station in Winschoten in the Netherlands. It is located on the Harlingen–Nieuweschans railway between Scheemda and Bad Nieuweschans in the province of Groningen.
The station building, designed by Karel Hendrik van Brederode, was completed in 1865 and expanded in 1904. Train services started on 1 May 1868 and have since been provided by Maatschappij tot Exploitatie van Staatsspoorwegen (1868–1937), Nederlandse Spoorwegen (1938–2000), NoordNed (2000–2005), and Arriva (2005–present). During World War II, 500 Jews were transported from the station via the Westerbork transit camp to Nazi concentration camps, where most of them were killed. (Full article...)
Blade Runner 2049 is a 2017 American epic neo-noir science fiction film directed by Denis Villeneuve from a screenplay by Hampton Fancher and Michael Green, based on a story by Fancher. A sequel to Blade Runner (1982), the film stars Ryan Gosling and Harrison Ford, with Ana de Armas, Sylvia Hoeks, Robin Wright, Mackenzie Davis, Dave Bautista, and Jared Leto in supporting roles. Ford and Edward James Olmos reprise their roles from the previous film as Rick Deckard and Gaff, respectively. Gosling plays K, a "blade runner" who uncovers a secret that threatens to destabilize society and the course of civilization.
Ideas for a Blade Runner sequel were first proposed in the 1990s, but licensing issues stalled their development. Andrew Kosove and Broderick Johnson obtained the film rights from Bud Yorkin. Ridley Scott stepped down as the film's initial director and worked as an executive producer, while Villeneuve was later appointed to direct. Blade Runner 2049 was financed through a partnership between Alcon Entertainment and Sony Pictures, as well as a Hungarian government-funded tax rebate. Warner Bros., who had distributed its predecessor, released the film on behalf of Alcon in North America, while Sony handled distribution in international markets. Principal photography took place mostly at two soundstages in Budapest over four months from July to November 2016. (Full article...)
Ideas for a Blade Runner sequel were first proposed in the 1990s, but licensing issues stalled their development. Andrew Kosove and Broderick Johnson obtained the film rights from Bud Yorkin. Ridley Scott stepped down as the film's initial director and worked as an executive producer, while Villeneuve was later appointed to direct. Blade Runner 2049 was financed through a partnership between Alcon Entertainment and Sony Pictures, as well as a Hungarian government-funded tax rebate. Warner Bros., who had distributed its predecessor, released the film on behalf of Alcon in North America, while Sony handled distribution in international markets. Principal photography took place mostly at two soundstages in Budapest over four months from July to November 2016. (Full article...)
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The semi-submersible oil platform P-51, operated by Brazilian energy company Petrobras, being positioned by tugboats. Semisubs sit on pontoons located under the ocean surface, with the operating deck atop columns, above the sea level. In this manner, they are relatively protected from wave action. -
Photograph: Donald Y TongBurj Khalifa is a skyscraper in Dubai, United Arab Emirates, and currently the tallest man-made structure in the world, at 829.8 m (2,722 ft). It was designed to be the centerpiece of a large-scale, mixed-use development known as Downtown Dubai. Construction took over five years, and the skyscraper was officially opened in January 2010. -
Diagram: Jeff Dahl -
An overhead power line is a structure used in electric power transmission and distribution to transmit electrical energy along large distances. It consists of one or more conductors suspended by towers or utility poles.
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Credit: Berthold WernerA telephone, or phone, is a telecommunications device that converts sound, typically the human voice, into electronic signals suitable for transmission via cables or other transmission media over long distances through satellite. -
Credit: Mike McGregorThe OLPC XO-1 is an inexpensive subnotebook laptop computer intended to be distributed to children in developing countries. -
Photograph: David ShankboneDavid Faiman is an Israeli engineer and physicist recognized for his expertise on solar power. He is the director of the Ben-Gurion National Solar Energy Center and Chairman of the Department of Solar Energy & Environmental Physics at Ben-Gurion University's Jacob Blaustein Institutes for Desert Research in Sde Boker. -
A wheel is a circular component that is intended to rotate on an axial bearing. The wheel is one of the main components of the wheel and axle which is one of the six simple machines.
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Photograph: NACAKitty Joyner (1916–1993) was an American electrical engineer with the National Advisory Committee for Aeronautics (NACA), and then the National Aeronautics and Space Administration (NASA). She was hired in 1939 as the organization's first woman engineer, shortly after she had become the first woman to graduate from the University of Virginia's engineering program. -
A disc of copper made by continuous casting, the process whereby molten metal is solidified into a "semifinished" state for subsequent rolling in the finishing mills. Continuous casting replaced the creation of ingots using stationary moulds. The process allows lower-cost production of metal sections with better quality, due to the inherently lower costs of continuous, standardised production of a product, as well as providing increased control over the process through automation. After casting, this disc was then etched to achieve its final state. -
Photo credit: L Cpl. Samantha L. Jones, USMCNine Marines from Mike Battery, 4th Battalion, 14th Marines operate the 155mm M198 howitzer in November 2004. The battery was based at Camp Fallujah, Iraq and was supporting Operation Phantom Fury. All nine members of the M198 crew are present. -
Photo credit: Gretar ÍvarssonThe Nesjavellir geothermal power plant, located near Þingvellir, Iceland is the largest of five such plants in the country. Because of the high concentration of volcanoes in Iceland, geothermal energy is so inexpensive that in the wintertime, some pavements in Reykjavík and Akureyri are heated. -
Photograph: ULPower Aero EnginesThe ULPower UL260i, a flat-four engine produced by ULPower Aero Engines of Belgium. Flat-four engines are flat engines with four cylinders arranged horizontally in two banks of two cylinders on each side of a central crankcase; they can be used in cars, motorcycles, or aircraft. This type of engine tends to be well-balanced and have efficient cooling, but is expensive to manufacture and considerably wider than other engines. -
Ruby Loftus Screwing a Breech Ring is a 1943 painting by the British painter Laura Knight depicting a young woman, Ruby Loftus (1921–2004), working at an industrial lathe as part of the British war effort in World War II. The painting was commissioned by the War Artists' Advisory Committee, and is now part of the Imperial War Museum's art collection. The painting brought instant fame to Loftus, and has been likened to the American figure of "Rosie the Riveter". -
Image credit: FastfissionSchematic representation of the two methods with which to assemble an atomic bomb. An A-bomb produces its explosive energy through nuclear fission reactions alone. A mass of fissile material (enriched uranium or plutonium) is assembled into a supercritical mass—the amount of material needed to start an exponentially growing nuclear chain reaction—either by shooting one piece of sub-critical material into another (the "gun" method, shown on top here), or by compressing a sub-critical sphere of material using chemical explosives to many times its original density (the "implosion" method, at bottom). -
The Australia Telescope Compact Array is a radio telescope operated by the Commonwealth Scientific and Industrial Research Organisation (CSIRO) at the Paul Wild Observatory, 25 km (16 mi) west of the town of Narrabri in New South Wales, Australia. The telescope is an array of six identical dishes each 22 metres (72 ft) in diameter, which commonly operate in aperture synthesis mode to produce images from radio waves. Five of the dishes can be moved along a 3-kilometre (2 mi) railway track; the sixth is situated three kilometres west of the end of the main track. Each dish weighs about 270 tonnes (270 long tons; 300 short tons).
This photograph, showing five of the Australia Telescope Compact Array's dishes, was taken around 1984, in the late phase of the construction process. It is a long-exposure photograph taken in darkness in the late evening; during the exposure, the photographer, John Masterson, walked around the dishes firing off over 130 flashes using a hand-held flash gun. -
The Trojan Room coffee pot was the inspiration for the world's first webcam. The coffee pot was located in the corridor just outside the so-called Trojan Room within the old Computer Laboratory of the University of Cambridge. The webcam was created in 1991 to help people working in other parts of the building avoid pointless trips to the coffee pot by providing, on the user's desktop computer, a live 128×128 pixel greyscale picture of the state of the coffee pot. The webcam was shut down on 22 August 2001, following the Computer Laboratory's move to the William Gates Building. -
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Photo credit: Eric PierceThe pin tumbler lock is a lock mechanism that utilizes a group of pins of varying lengths to prevent opening the lock without the correct key. Pin tumblers are most commonly employed in cylinder locks, but may also be found in tubular or radial locks.
When the correct key is inserted, the gaps between the key pins (red) and driver pins (blue) align with the edge of the plug (yellow). -
Photo: IkiwanerAn Agusta A109 rescue helicopter leaves Mount Pilatus, near Lucerne, Switzerland, after recovering a patient. Later renamed AgustaWestland AW109, the A109 is a helicopter manufactured by Agusta (now AgustaWestland) of Italy. It is a light-weight, twin-engine, eight-seat multi-purpose craft.
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