Portal:Technology
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 prehistoric times, followed by the control of fire, which contributed to the growth of the human brain and the development of language during the Ice Age. 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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K-149 is a 6.098-mile-long (9.814 km) north–south state highway in the U.S. state of Kansas. Entirely within rural Morris County, K-149's southern terminus is at U.S. Route 56 (US-56) east of Herington and the northern terminus is at K-4 south of White City. The highway passes through grasslands characteristic of the Great Plains and is a two-lane road for its entire length.
K-149 was first designated as a state highway by the State Highway Commission of Kansas, now known as the Kansas Department of Transportation, on February 13, 1957. The highway's alignment has not changed since it was created. (Full article...) -
Lakselv Airport (Norwegian: Lakselv lufthavn; IATA: LKL, ICAO: ENNA) is an international airport located at Banak, 1.5 kilometers (1 mile) north of the village of Lakselv in Porsanger Municipality in Finnmark county, Norway. Co-located with the military Station Group Banak, the airport is owned and operated by the state-owned Avinor. The airport is also branded as North Cape Airport, although the North Cape is 190 km (120 mi) away, and the nearest airport is Honningsvåg Airport, Valan.
The runway is 2,788 meters (9,147 feet) long and aligned nearly north–south. The airport is served by Widerøe with daily direct flights to Tromsø. Weekly Scandinavian Airlines offer direct flights from Lakselv to Oslo, in addition to seasonal international charter services. The airport had 71,763 passengers in 2012. In addition to serving Porsanger, the airport's catchment area includes Karasjok Municipality, Måsøy Municipality, and Lebesby Municipality. (Full article...) -
K-98 is a 9.048-mile-long (14.561 km) state highway in the U.S. state of Kansas. Entirely within Meade County, K-98's western terminus is at K-23 north of Meade, and its eastern terminus is at U.S. Route 54 (US-54) south of Fowler. With the exception of the eastern end, the highway travels through flat farmland and is a two-lane road for its entire length.
The highway that is now K-98 was designated as K-56 on July 1, 1937. In 1953, the highway was extended south to a new alignment of US-54. K-56 was redesignated as K-98 between 1956 and 1957 to avoid confusion with US-56. The highway was paved by 1957. The original K-98 was designated on July 1, 1937, and went from K-23 west to Meade State Park. On March 8, 1961, K-23 was realigned to follow the former K-98 to Meade State Lake then south over a previously unnumbered roadway to the Oklahoma border, which eliminated that K-98. (Full article...) -
The 79th Street station is a local station on the IRT Broadway–Seventh Avenue Line of the New York City Subway. Located at the intersection of 79th Street and Broadway in the Upper West Side neighborhood of Manhattan, it is served by the 1 train at all times and the 2 train during late nights.
The 79th Street station was constructed for the Interborough Rapid Transit Company (IRT) as part of the city's first subway line, which was approved in 1900. Construction of the line segment that includes the 79th Street station began on August 22 of the same year. The station opened on October 27, 1904, as one of the original 28 stations of the New York City Subway. The station's platforms have been lengthened since opening. (Full article...)
The Organization of the Petroleum Exporting Countries (OPEC, /ˈoʊpɛk/ OH-pek) is an organization enabling the co-operation of leading oil-producing and oil-dependent countries in order to collectively influence the global oil market and maximize profit. It was founded on 14 September 1960 in Baghdad by the first five members (Iran, Iraq, Kuwait, Saudi Arabia, and Venezuela). The organization, which currently comprises 12 member countries, accounted for an estimated 30 percent of global oil production. A 2022 report further details that OPEC member countries were responsible for approximately 38 percent of it. Additionally, it is estimated that 79.5 percent of the world's proven oil reserves are located within OPEC nations, with the Middle East alone accounting for 67.2 percent of OPEC's total reserves.
In a series of steps in the 1960s and 1970s, OPEC restructured the global system of oil production in favor of oil-producing states and away from an oligopoly of dominant Anglo-American oil firms (the "Seven Sisters"). In the 1970s, restrictions in oil production led to a dramatic rise in oil prices with long-lasting and far-reaching consequences for the global economy. Since the 1980s, OPEC has had a limited impact on world oil-supply and oil-price stability, as there is frequent cheating by members on their commitments to one another, and as member commitments reflect what they would do even in the absence of OPEC. However, since 2020, OPEC countries along with non-OPEC participants had helped in stabilising oil markets after the COVID-19 pandemic resulted in a collapse in oil demand. This has allowed oil markets to remain stable relative to other energy markets that experienced unprecedented volatility. (Full article...)
Little Boy is the name of the type of atomic bomb used in the bombing of the Japanese city of Hiroshima on 6 August 1945 during World War II, making it the first nuclear weapon used in warfare. The bomb was dropped from the Boeing B-29 Superfortress Enola Gay piloted by Colonel Paul W. Tibbets Jr., commander of the 509th Composite Group, and Captain Robert A. Lewis. It exploded with an energy of approximately 15 kilotons of TNT (63 TJ) and had an explosion radius of approximately 1.3 kilometers which caused widespread death across the city. The Hiroshima bombing was the second nuclear explosion in history, after the Trinity nuclear test.
Little Boy was developed by Lieutenant Commander Francis Birch's group at the Manhattan Project's Los Alamos Laboratory during World War II, a reworking of their abandoned Thin Man nuclear bomb. Like Thin Man, it was a gun-type fission weapon. It derived its explosive power from the nuclear fission of uranium-235, whereas Thin Man was based on fission of plutonium-239. Fission was accomplished by shooting a hollow cylinder (the "bullet") onto a solid cylinder of the same material (the "target") by means of a charge of nitrocellulose propellant powder. Little Boy contained 64 kilograms (141 lb) of highly enriched uranium, although less than a kilogram underwent nuclear fission. Its components were fabricated at three different plants so that no one would have a copy of the complete design. Unlike the implosion design, which required sophisticated coordination of shaped explosive charges, the gun-type design was considered almost certain to work so it was never tested before its first use at Hiroshima. (Full article...)
M-156 is a state trunkline highway in the US state of Michigan. The highway is entirely within Lenawee County and begins in Morenci at the Ohio state line with State Route 108 (SR 108) and runs north to M-34 at Clayton. The highway runs through farm land along Lime Creek outside of the two communities, providing access to the Lake Hudson State Recreation Area. The trunkline dates back to the early 1930s, and has been unchanged since a realignment in 1980. (Full article...)
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Photograph credit: Petar MiloševićA thermoplastic-sheathed cable consists of a toughened outer thermoplastic sheath of polyvinyl chloride, covering one or more individual annealed copper conductors. Each of the current-carrying conductors in the "core" is insulated by an individual thermoplastic sheath, coloured to indicate the purpose of the conductor concerned. The protective earth conductor may also be covered with insulation, although, in some countries, this conductor may be left as bare copper. The type of thermoplastic, the dimensions of the conductors and the colour of their individual insulation are specified by the regulatory bodies in the various countries concerned. -
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). -
Photograph credit: Dllu
The N700 Series Shinkansen is a Japanese Shinkansen high-speed train with tilting capability developed jointly by JR Central and JR West. It has been used on the Tokaido and San'yō Shinkansen lines since 2007. This photograph shows the train travelling at approximately 300 km/h through Himeji Station, and was captured with a line scan camera using strip photography. -
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. -
Credit: Mike McGregorThe OLPC XO-1 is an inexpensive subnotebook laptop computer intended to be distributed to children in developing countries. -
Photograph credit: Diego DelsoThe Walchensee Hydroelectric Power Station is a storage power station in Bavaria, Germany. The turbines, seen here, are fed by water from the Walchensee which is then released into the Kochelsee. The power station uses the hydraulic head of about 200 metres (660 ft) between the two natural lakes, and water from the Rißbach river is also used to augment the supply. The installed capacity is 124 MW with an annual production of 300 GWh; this is one of the largest of such power plants in Germany. -
Photograph: Evan AmosThe Apple Bandai Pippin is a multimedia technology console designed by Apple Computer based on the Apple Pippin platform, and produced by Bandai. Only 100,000 of the consoles were produced between its 1996 release and 1997 discontinuation. The Bandai Pippin was intended to create an inexpensive computer aimed mostly at playing CD-based multimedia software, especially games, but also functioning as a thin client. -
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. -
Image credit: WikipedianProlificAn animated cut-away diagram of a typical fuel injector, which is used to spray controlled amounts of petrol (gasoline) into an internal combustion engine. A solenoid is activated when fuel is intended to be delivered to the engine, causing the plunger to become pulled toward the solenoid by magnetic force. This uncovers the valve opening, allowing fuel to flow into the atomiser and out the spray tip. The route of fuel is shown in orange; grey/blue indicates no fuel present. -
Photograph: Christoph BraunA 'K6' model red telephone box outside of St Paul's Cathedral in London. These kiosks for a public telephone were designed by Sir Giles Gilbert Scott and painted "currant red" for easy visibility. Although such telephone boxes ceased production when the KX series was introduced in 1985, they remain a common sight in Britain and some of its colonies, and are considered a British cultural icon. -
Photograph: UberprutserA windmill is a mill that converts the energy of wind into rotational energy by means of vanes called sails or blades. Traditional windmills were often used to mill grain, pump water, or both. Most modern windmills take the form of wind turbines used to generate electricity, or windpumps used to pump water, either for land drainage or to extract groundwater.
Here, the smock mill Goliath is viewed in front of the wind farm Growind in Eemshaven in the Netherlands. -
Photograph credit: Unknown; restored by Adam CuerdenGeorge Washington Carver (1860s–1943) was an American agricultural scientist and inventor. Born into slavery in Diamond, Missouri, he was raised by his master Moses Carver after being emancipated, having been separated from his parents as an infant during a kidnapping incident. After college, Carver became a professor at Tuskegee Institute, where he developed techniques to improve soils depleted by repeated plantings of cotton. He wanted poor farmers to grow alternative crops, such as peanuts and sweet potatoes, as a source of their own food and to improve their quality of life. Carver spent years developing and promoting products made from peanuts, although none became commercially successful. Apart from his work to improve the lives of farmers, he was also a leader in promoting environmentalism. Carver received numerous honors for his work, including the NAACP's Spingarn Medal. In an era of very high racial polarization, his fame reached beyond the black community; he was widely recognized and praised in the white community for his many achievements and talents. In 1941, Time magazine dubbed Carver a "black Leonardo".
This picture of Carver was taken around 1910 and is in the collection of the Tuskegee University archives. -
Photograph: Katsuhiko Tokunaga/SuperJet InternationalThe Sukhoi Superjet 100 is a modern fly-by-wire twin-engine regional jet with 8 to 108 passenger seats. Development began in 2000; the aircraft had its maiden flight on 19 May 2008 and entered commercial service on 21 April 2011. This aircraft is seen flying off the coast of Italy near Sanremo. -
Image credit: Joaquim Alves GasparAn animation showing how to use a vernier caliper, which is a caliper that uses a vernier scale to interpolate linear measurements. Vernier calipers can measure internal and external dimensions using, respectively, the uppermost and lower jaws, and also depths, using the depth probe (located at the right end). In this example, the first two digits (2.4) are decided by the location of the zero of the vernier scale in the centimeter scale, and the last digit (0.07), by the first line of the vernier scale that exactly matches a line of the centimeter scale above. -
The Let L-410 Turbolet is a twin-engined short-range transport aircraft, manufactured by the Czech aircraft manufacturer LET, mostly used for passenger transport. The L-410 first flew in 1969, and with more than 1100 produced, is the most popular 19-seat plane in history. -
Photo: Arthur Rothstein; Restoration: Lise BroerA portrait of George Washington Carver, American scientist, botanist, educator and inventor, from 1942. Much of Carver's fame is based on his research into and promotion of alternative crops to cotton, such as peanuts and sweet potatoes. In addition to his work on agricultural extension education for purposes of advocacy of sustainable agriculture and appreciation of plants and nature, Carver's important accomplishments also included improvement of racial relations, mentoring children, poetry, painting, and religion. One of his most important roles was in undermining, through the fame of his achievements and many talents, the widespread stereotype of the time that the black race was intellectually inferior to the white race. -
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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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 credit: Stefan KrauseThe BMW S1000RR is a sport bike made by BMW Motorrad. It was introduced in 2008, initially for competition in the 2009 Superbike World Championship, and has been in commercial production since then. Powered by a 999 cc (61.0 cu in) four-cylinder engine, redlined at 14,200 rpm, it delivers 133.6 kW (179.2 hp; 181.6 PS) to the rear wheel, making it the most powerful motorcycle in the class. Rubén Xaus and Troy Corser rode the bike for its inaugural Superbike World Championship in 2009, gaining highest finishes of fifth and seventh respectively, but it achieved greater success in the 2010 FIM Superstock 1000 championship season, with rider Ayrton Badovini winning every single race but one on the S1000RR. -
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General images -
The following are images from various technology-related articles on Wikipedia.
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Pont du Gard in France, a Roman aqueduct (from History of technology) -
Eric M. C. Tigerstedt (1887–1925) was known as a pioneer of sound-on-film technology. Tigerstedt in 1915. (from Invention) -
Self-replicating 3D printer (from Emerging technologies) -
A variety of stone tools (from History of technology) -
3D printer (from Emerging technologies) -
A rare 1884 photo showing the experimental recording of voice patterns by a photographic process at the Alexander Graham Bell Laboratory in Washington, D.C. Many of their experimental designs panned out in failure. (from Invention) -
Edison electric light bulbs 1879–80 (from History of technology) -
Dome of Florence Cathedral (from History of technology) -
A late Bronze Age sword or dagger blade (from History of technology) -
The preserved Rocket (from History of technology) -
Newcomen steam engine for pumping mines (from History of technology) -
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Alessandro Volta with the first electrical battery. Volta is recognized as an influential inventor. (from Invention) -
Top 30 AI patent applicants in 2016 (from Emerging technologies) -
Walls at Sacsayhuaman (from History of technology) -
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Johannes Gutenberg's printing press was voted the most important invention of the second millennium. (from Invention) -
A water-powered mine hoist used for raising ore, ca. 1556 (from History of technology) -
Ford assembly line, 1913. The magneto assembly line was the first. (from History of technology) -
The compartmented water wheel, here its overshot version (from History of technology) -
The wheel, invented sometime before the 4th millennium BC, is one of the most ubiquitous and important technologies. This detail of the "Standard of Ur", c. 2500 BCE., displays a Sumerian chariot. (from History of technology) -
Clock from Salisbury Cathedral, ca. 1386 (from History of technology) -
Agriculture preceded writing in the history of technology. (from History of technology) -
Design for a flying machine (c.1488) by da Vinci (from History of technology) -
'BUILD YOUR OWN TELEVISION RECEIVER.' Science and Invention magazine cover, November 1928 (from Invention) -
Thomas Edison with his second phonograph, photographed by Levin Corbin Handy in Washington, April 1878 (from History of technology) -
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Did you know (auto-generated) -
- ... that Justin Yu, the current Classic Tetris World Champion, is also a cellist in MIT's video game orchestra?
- ... that Criccieth Castle combined the "latest advances in military technology" with the "haphazard Welsh castle building style"?
- ... that Suresh Jadhav led the development of the COVID-19 vaccine marketed as Covishield?
- ... that Kathanar – The Wild Sorcerer is being shot on a custom-built studio spanning 45,000 square feet (4,200 m), utilizing the virtual production technology?
- ... that Guy Parmelin, now President of Switzerland, opened the study program of cyber security of the Lucerne School of Information Technology in 2018?
- ... that OPTi Inc. won a patent suit against Apple for unauthorized use of "predictive snooping" technology?
- ... that it was Caltech experimental physicist Rana X. Adhikari's idea to build a gravitational-wave observatory in India?
- ... that several science fiction critics praised "Rock Diver", the first short story by American writer Harry Harrison, for its compelling take on technology for passing through matter?
Top 10 WikiProject Technology popular articles of the month
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YouTube (YT) is an American online video sharing platform owned by Google. Accessible worldwide, YouTube was launched on February 14, 2005, by Steve Chen, Chad Hurley, and Jawed Karim, three former employees of PayPal. Headquartered in San Bruno, California, United States, it is the second-most visited website in the world, after Google Search. As of January 2024, YouTube has more than 2.7 billion monthly users, who collectively watch more than one billion hours of videos every day. As of May 2019, videos were being uploaded to the platform at a rate of more than 500 hours of content per minute, and as of 2021, there were approximately 14 billion videos in total. (Full article...)
Elon Reeve Musk FRS (/ˈiːlɒn/; born June 28, 1971) is a businessman and investor known for his key roles in the space company SpaceX and the automotive company Tesla, Inc. Other involvements include ownership of X Corp., the company that operates the social media platform X (formerly known as Twitter), and his role in the founding of The Boring Company, xAI, Neuralink, and OpenAI. He is one of the wealthiest individuals in the world; as of August 2024 Forbes estimates his net worth to be US$247 billion. (Full article...)
WhatsApp (officially WhatsApp Messenger) is an instant messaging (IM) and voice-over-IP (VoIP) service owned by technology conglomerate Meta. It allows users to send text, voice messages and video messages, make voice and video calls, and share images, documents, user locations, and other content. WhatsApp's client application runs on mobile devices, and can be accessed from computers. The service requires a cellular mobile telephone number to sign up. In January 2018, WhatsApp released a standalone business app called WhatsApp Business which can communicate with the standard WhatsApp client. (Full article...)
Facebook is a social media and social networking service owned by American technology conglomerate Meta. Created in 2004 by Mark Zuckerberg with four other Harvard College students and roommates Eduardo Saverin, Andrew McCollum, Dustin Moskovitz, and Chris Hughes, its name derives from the face book directories often given to American university students. Membership was initially limited to Harvard students, gradually expanding to other North American universities. Since 2006, Facebook allows everyone to register from 13 years old, except in the case of a handful of nations, where the age limit is 14 years. As of December 2022, Facebook claimed almost 3 billion monthly active users. As of October 2023, Facebook ranked as the third-most-visited website in the world, with 22.56% of its traffic coming from the United States. It was the most downloaded mobile app of the 2010s. (Full article...)
ChatGPT is a chatbot and virtual assistant developed by OpenAI and launched on November 30, 2022. Based on large language models (LLMs), it enables users to refine and steer a conversation towards a desired length, format, style, level of detail, and language. Successive user prompts and replies are considered at each conversation stage as context. (Full article...)
Google LLC (/ˈɡuːɡəl/ GOO-ghəl) is an American multinational corporation and technology company focusing on online advertising, search engine technology, cloud computing, computer software, quantum computing, e-commerce, consumer electronics, and artificial intelligence (AI). It has been referred to as "the most powerful company in the world" and is one of the world's most valuable brands due to its market dominance, data collection, and technological advantages in the field of AI. Google's parent company, Alphabet Inc., is one of the five Big Tech companies, alongside Amazon, Apple, Meta, and Microsoft. (Full article...)
Amazon.com, Inc., doing business as Amazon (/ˈæməzɒn/, AM-ə-zon; UK also /ˈæməzən/, AM-ə-zən), is an American multinational technology company, engaged in e-commerce, cloud computing, online advertising, digital streaming, and artificial intelligence. It is considered one of the Big Five American technology companies; the other four being Alphabet (parent company of Google), Apple, Meta (parent company of Facebook), and Microsoft. (Full article...)
Artificial intelligence (AI), in its broadest sense, is intelligence exhibited by machines, particularly computer systems. It is a field of research in computer science that develops and studies methods and software that enable machines to perceive their environment and use learning and intelligence to take actions that maximize their chances of achieving defined goals. Such machines may be called AIs. (Full article...)
Netflix is an American subscription video on-demand over-the-top streaming service. The service primarily distributes original and acquired films and television shows from various genres, and it is available internationally in multiple languages. (Full article...)
