Portal:Technology

 The Technology Portal 

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

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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  The 1761 Milestone is a mile marker located at 640 South Main Street in Woonsocket, Rhode Island. The stone originally marked the junction of a Colonial highway from Great Road and an east-west route from Boston, Massachusetts to Connecticut. It was rediscovered during the installation of an electrical road (likely a tram). In 1898, it was restored to its original location by the local chapter of the Daughters of the American Revolution. The stone is embedded in a low retaining wall at the corner of South Main Street and Smithfield Road. It was added to the National Register of Historic Places on November 24, 1982, and is historically significant as a Colonial-era highway marker. (Full article...)
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  Lillesand Station in 1902

  
  The Lillesand–Flaksvand Line (Norwegian: Lillesand–Flaksvandbanen) or LFB was a 16.59-kilometer (10.31 mi) railway between Flaksvand (now called Flaksvatn) and Lillesand in Agder, Norway. The private line was built with 1,067 mm (3 ft 6 in) narrow gauge and was not connected to the national railway network. The line opened on 4 June 1896, and remained in use until 15 June 1953. It was built to carry lumber, but also featured a passenger service and other cargo transport. After 1908, the line was unprofitable and only had a limited service. Plans to connect it to the Sørland Line were proposed but rejected. The line had four stations and four halts, and was served with two 75 kilowatts (100 hp) steam locomotives, Lillesand and Flaksvand. The line was owned and operated by the private company, A/S Lillesand–Flaksvandbanen, although nearly all the shares were held by local municipalities, the county and the national government. (Full article...)
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  State Route 169 (SR 169) is a state highway in the U.S. state of Washington, located entirely within King County. It runs 25 miles (40 km) from Enumclaw to Renton, passing through Black Diamond and Maple Valley. The highway, also known as the Maple Valley Highway, functions as a major rural and suburban route for the southeastern Seattle metropolitan area and connects several highways, including SR 410, SR 18, and Interstate 405 (I-405).
  
  The Enumclaw–Maple Valley–Renton highway was built in 1914 and expanded in the early 1930s by the county government. It was absorbed into the state highway system in 1937 and designated as a branch of Primary State Highway 5 and renumbered to SR 169 in 1964. Recent residential development in Maple Valley and surrounding areas has increased traffic congestion on the highway, leading to a series of widening and improvement projects funded primarily by city governments. (Full article...)
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  The Port of Constanța is located in Constanța, Romania, on the western coast of the Black Sea, 179 nautical miles (332 km) from the Bosphorus Strait and 85 nmi (157 km) from the Sulina Branch, through which the Danube river flows into the sea. It covers 3,926 ha (9,700 acres), of which 1,313 ha (3,240 acres) is land and the rest, 2,613 ha (6,460 acres) is water. The two breakwaters located northwards and southwards shelter the port, creating the safest conditions for port activities. The present length of the north breakwater is 8,344 m (5.185 mi) and the south breakwater is 5,560 m (3.45 mi). The Port of Constanța is the largest on the Black Sea and the 17th largest in Europe.
  
  The favourable geographical position and the importance of the Port of Constanța is emphasized by the connection with two Pan-European transport corridors: IV (high speed railway&highway) and the Pan-European Corridor VII (Danube). The two satellite ports, Midia and Mangalia, located not far from Constanța Port, are part of the Romanian maritime port system under the coordination of the Maritime Ports Administration SA. (Full article...)
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  Pennsylvania Route 363 (PA 363) is a state highway located in Montgomery County, Pennsylvania that is a spur of PA 63. The route, which is signed north-south, runs 11.96 mi (19.25 km) from an interchange with U.S. Route 422 (US 422) in Audubon northeast to an intersection with PA 63 in Lansdale. The route runs mostly through suburban areas of central Montgomery County, passing some farmland in Worcester Township. PA 363 is designated along Trooper Road, Ridge Pike, Park Avenue, and Valley Forge Road. In the community of Worcester, the route crosses PA 73.
  
  PA 363 was first designated by the Pennsylvania Department of Highways in 1928 to run from PA 23 in Port Kennedy to PA 63 in Lansdale. In the 1940s, PA 363 was extended west on present-day PA 23 to end near Valley Forge. The route was extended south from Valley Forge to US 30 in Devon in 1961. In the 1960s, the route was redirected to follow Gulph Road southeast to US 202 in King of Prussia. By 1989, the south end of PA 363 was relocated to the US 422 interchange. The Betzwood Bridge, which had carried PA 363 over the Schuylkill River, was removed in 1995. The partial interchange with US 422 became a full interchange in 2015. (Full article...)
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  New York State Route 20SY (NY 20SY) was a state highway in the vicinity of the city of Syracuse, New York, in the United States. It connected U.S. Route 20 (US 20) to downtown Syracuse via Skaneateles, Camillus, Manlius, and Cazenovia in Onondaga County and Madison County. The highway began at an intersection with US 20 and NY 321 in the village of Skaneateles and ended at a junction with US 20, NY 20N, and NY 92 near the village of Cazenovia. Most of NY 20SY overlapped another route; however, two sections of NY 20SY—one in the town of Camillus and another near the village of Fayetteville—were not concurrent with another highway.
  
  NY 20SY was assigned in 1951, overlapping parts of the pre-existing NY 321, NY 5, NY 92, and NY 20N, a more southerly alternate route of US 20 in the Syracuse area. Both NY 20N and NY 20SY were removed in 1961. The two independent sections of NY 20SY near Camillus and Fayetteville eventually became part of NY 321 and NY 92, respectively. (Full article...)
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  New York State Route 391 (NY 391) is a short state highway in Erie County, New York, in the United States. The route is signed as north–south; however, it follows more of a southeast–northwest alignment between NY 277 in the hamlet of North Boston and U.S. Route 62 (US 62) in the village of Hamburg. NY 391 meets the Southern Expressway (US 219) just north of North Boston. Both ends of NY 391 are located in residential areas; however, the middle section of the route passes through more rural areas of the towns of Boston and Hamburg.
  
  The routing of NY 391 has been part of several routes over the years, beginning with NY 62 in 1930. NY 62 was mostly renumbered to NY 75 c. 1932, and all of NY 75 south of Hamburg became concurrent to US 219 when it was extended into New York c. 1935. NY 75 was cut back to Hamburg by 1940, leaving just US 219 on modern NY 391. US 219 was realigned north of North Boston in the early 1970s to follow other routes north to meet the first completed piece of the Southern Expressway near Orchard Park. NY 391 was assigned to US 219's former routing into Hamburg at this time. The route originally ended two blocks to the west at the junction of NY 75 and US 62; however, this extension was eliminated c. 2004. (Full article...)

Selected picture

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  Wiesen Viaduct

  Photograph: David Gubler

  The Wiesen Viaduct is a single-track railway viaduct (concrete blocks with dimension stone coverage) which spans the Landwasser southwest of the hamlet of Wiesen, Switzerland. Designed by Henning Friedrich, then the chief engineer of the Rhaetian Railway, it was built between 1906 and 1909 by the contractor G. Marasi (Westermann & Cie, Zürich) under the supervision of P. Salaz and Hans Studer (RhB). The Rhaetian Railway still owns and uses the viaduct today for regular service with 29 passenger trains per day. An important element of the Davos–Filisur railway, the viaduct is 88.9 metres (292 ft) high, 210 metres (690 ft) long, and has a main span of 55 metres (180 ft). In 1926, the viaduct was the inspiration for Ernst Ludwig Kirchner's painting Brücke bei Wiesen.
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  New York City Subway

  Map: CountZ

  A transit map of the New York City Subway, one of the oldest and most extensive public transportation systems in the world. Operated by the Metropolitan Transportation Authority of the State of New York, it has 468 stations in operation on 209 mi (337 km) of routes, with 842 miles (1,355 km) of track. It is the busiest rapid transit rail system by annual ridership in the Western Hemisphere, and fifth busiest in the world. Its stations are located throughout the boroughs of Manhattan, Brooklyn, Queens and the Bronx. Staten Island has its own rail line which is not part of the system, but is included in the map as well.
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  Wheel

  Credit: fir0002

  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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  Laptop computer

  Credit: Mike McGregor

  The OLPC XO-1 is an inexpensive subnotebook laptop computer intended to be distributed to children in developing countries.
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  Thermoplastic-sheathed cable

  Photograph credit: Petar Milošević

  A 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.
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  Nesjavellir

  Photo credit: Gretar Ívarsson

  The 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.
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  Hybrid-propellant rocket

  Photograph credit: Matt Steiner and Kees08

  A hybrid-propellant rocket is a rocket with an engine that uses propellants in two different phases, one solid and the other gaseous or liquid. The concept can be traced back to at least the 1930s.
  
  This picture shows a transparent 3D-printed hybrid-rocket fuel grain with dual helical fuel ports, a post-combustion chamber, and a de Laval nozzle, photographed prior to the hot-fire test. The motor used nitrous oxide as the oxidizer and Pyrodex pellets for the igniter.
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  Escalator

  Credit: Stig Nygaard

  An escalator is a moving staircase for carrying people between floors of a building. The device consists of a motor-driven chain of individual, linked steps that move up or down on tracks, allowing the step treads to remain horizontal.
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  Aerospike engine

  Photo credit: Marshall Space Flight Center

  A test firing of twin linear XRS-2200 aerospike engines, originally built for the Lockheed Martin X-33, a next-generation, commercially operated reusable launch vehicle. The aerospike engine is a type of rocket engine that maintains its efficiency across a wide range of altitudes through the use of an aerospike nozzle. A vehicle with an aerospike engine uses 25-30% less fuel at low altitudes, where most missions have the greatest need for thrust.
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  AgustaWestland AW109

  Photo: Ikiwaner

  An 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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  Filling station

  Photograph: Uwe Aranas

  A filling station in Sabah, Malaysia, operated by Royal Dutch Shell. Filling stations, also known under a wide variety of names, are facilities that sell fuel and engine lubricants for motor vehicles. They include one or more fuel dispensers, which distribute fuels such as gasoline and diesel into the tanks within vehicles and calculate the financial cost of the fuel transferred. Filling stations may also include air compressors and electricity sockets, which may inflate tyres or offer charging stations. Many filling stations also incorporate a convenience store, where customers can purchase snacks and other goods.
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  Keypunch

  Picture: Unknown; restoration: Mmxx

  A woman using a Hollerith pantograph, a machine developed by Herman Hollerith for the punching of cards, providing data which could then be processed. Such tools were used in the 1890 United States Census, the first time the country's census was tabulated by machine.
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  Overhead power line

  Credit: Simon Koopmann

  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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  Mazda RX-8

  Photo credit: Fir0002

  The Mazda RX-8 sports car is a front mid-engine, rear-wheel drive four-seat coupé manufactured by Mazda Motor Corporation. It is the successor to the RX-7 and, like its predecessors in the RX range, it is powered by a rotary engine. The RX-8 began North American sales in the 2004 model year.
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  Mechanical advantage

  Image credit: Prolineserver/Tomia

  This diagram of four pulley systems illustrates how increasing the number of pulleys increases the mechanical advantage, making the load easier to lift. MA is the factor by which a mechanism multiplies the force put into it. In this diagram, 100 newtons is required to lift the weight off the ground. Each additional pulley increases the MA such that the four-pulley system only needs 25 newtons to accomplish the same task, but the rope must be pulled four times as far.
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  Let L-410 Turbolet

  Photo: Łukasz Golowanow

  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.
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  Red telephone box

  Photograph: Christoph Braun

  A '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.
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  Thomas Edison

  Photo: Bachrach Studios; Restoration: Michel Vuijlsteke

  Thomas Edison (1847–1931) was an American inventor, scientist and businessman who developed many devices that greatly influenced life around the world, including the phonograph, the motion picture camera, and a long-lasting, practical electric light bulb. Dubbed "The Wizard of Menlo Park" (now Edison, New Jersey) by a newspaper reporter, he was one of the first inventors to apply the principles of mass production and large teamwork to the process of invention, and therefore is often credited with the creation of the first industrial research laboratory. Edison is considered one of the most prolific inventors in history, holding 1,093 U.S. patents in his name, as well as many patents in the United Kingdom, France and Germany.
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  Kitty Joyner

  Photograph: NACA

  Kitty 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.
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  Telephone

  Credit: Berthold Werner

  A 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.

Main topics

General images -

The following are images from various technology-related articles on Wikipedia.

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  An axehead made of iron, dating from the Swedish Iron Age (from History of technology)
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  Top 30 AI patent applicants in 2016 (from Emerging technologies)
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  Newcomen steam engine for pumping mines (from History of technology)
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  Walls at Sacsayhuaman (from History of technology)
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  Alessandro Volta with the first electrical battery. Volta is recognized as an influential inventor. (from Invention)
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  The compartmented water wheel, here its overshot version (from History of technology)
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  The preserved Rocket (from History of technology)
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  Edison electric light bulbs 1879–80 (from History of technology)
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  Thomas Edison with his second phonograph, photographed by Levin Corbin Handy in Washington, April 1878 (from History of technology)
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  Design for a flying machine (c.1488) by da Vinci (from History of technology)
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  Pont du Gard in France, a Roman aqueduct (from History of technology)
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  Clock from Salisbury Cathedral, ca. 1386 (from History of technology)
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  NASA Fuel cell stack
  Direct-methanol cell (from Emerging technologies)
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  Eric M. C. Tigerstedt (1887–1925) was known as a pioneer of sound-on-film technology. Tigerstedt in 1915. (from Invention)
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  A water-powered mine hoist used for raising ore, ca. 1556 (from History of technology)
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  'BUILD YOUR OWN TELEVISION RECEIVER.' Science and Invention magazine cover, November 1928 (from Invention)
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  A late Bronze Age sword or dagger blade (from History of technology)
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  Self-replicating 3D printer (from Emerging technologies)
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  Dome of Florence Cathedral (from History of technology)
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  A variety of stone tools (from History of technology)
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  Ford assembly line, 1913. The magneto assembly line was the first. (from History of technology)
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  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)
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  Johannes Gutenberg's printing press was voted the most important invention of the second millennium. (from Invention)
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  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)
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  Solid-state air batteries
  Li-Air composition (from Emerging technologies)
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  3D printer (from Emerging technologies)
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  Agriculture preceded writing in the history of technology. (from History of technology)

Did you know (auto-generated) -

• ... that OPTi Inc. won a patent suit against Apple for unauthorized use of "predictive snooping" technology?
• ... that Henry E. Sigerist felt "depressed" after reading A History of Science, Technology, and Philosophy in the 16th and 17th Centuries?
• ... that Suresh Jadhav led the development of the COVID-19 vaccine marketed as Covishield?
• ... 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?
• ... that Criccieth Castle combined the "latest advances in military technology" with the "haphazard Welsh castle building style"?
• ... that Justin Yu, the current Classic Tetris World Champion, is also a cellist in MIT's video game orchestra?
• ... that Peter Corby's electric trouser press used technology designed for Concorde?
• ... that Guy Parmelin, now President of Switzerland, opened the study program of cyber security of the Lucerne School of Information Technology in 2018?

Top 10 WikiProject Technology popular articles of the month

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  Musk in 2018

  
  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 Twitter), and his role in the founding of the Boring Company, xAI, Neuralink, and OpenAI. He is the wealthiest individual in the world; as of November 2024 Forbes estimates his net worth to be US$304 billion. (Full article...)
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  YouTube is an American online video sharing platform owned by Google. YouTube was founded 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. In January 2024, YouTube had more than 2.7 billion monthly active users, who collectively watched 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...)
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  ChatGPT is a generative artificial intelligence (AI) chatbot developed by OpenAI and launched in 2022. It is based on the GPT-4o large language model (LLM). ChatGPT can generate human-like conversational responses, and enables users to refine and steer a conversation towards a desired length, format, style, level of detail, and language. It is credited with accelerating the AI boom, which has led to ongoing rapid investment in and public attention to the field of artificial intelligence. Some observers have raised concern about the potential of ChatGPT and similar programs to displace human intelligence, enable plagiarism, or fuel misinformation. (Full article...)
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  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...)
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  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...)
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  The Google logo used since 2015

  
  Google LLC (/ˈɡuːɡəl/ GOO-gəl) is an American-based 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...)
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  The Doppler building in Seattle,
  Amazon's headquarters

  
  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...)
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  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...)
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  Logo used since 2014

  
  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...)
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  Since late 2009, the headquarters of the Internet Archive has been the building that formerly housed the Fourth Church of Christ, Scientist in San Francisco, California.

  
  
  The Internet Archive is an American nonprofit organization founded in 1996 by Brewster Kahle that runs a digital library website, archive.org. It provides free access to collections of digitized media including websites, software applications, music, audiovisual, and print materials. The Archive also advocates a free and open Internet. Its mission is committing to provide "universal access to all knowledge". (Full article...)

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See also: 2024 in science and technology

September 23, 2024 –

Swedish lithium-ion technology developer Northvolt announces revised company operational scopes and its intention to layoff 1,600 workers in the country. (CBC)

September 13, 2024 – Russian invasion of Ukraine

Reuters reports that Russia has begun production of thousands of Garpiya-A1 long-range combat drones used against Ukrainian civilian and military targets, that incorporate engines, parts, and technology from China. (Reuters)

August 21, 2024 –

With regards to the rapid growth of the artificial intelligence market, Bloomberg alleges that technology companies are "concealing their actual carbon footprints" by invoking outdated emissions accounting rules. (Bloomberg)

August 18, 2024 – Libyan crisis

The Central Bank of Libya suspends all operations following the kidnapping of the head of its information technology department by an unknown party. (Reuters)

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