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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  Nickel is a chemical element; it has symbol Ni and atomic number 28. It is a silvery-white lustrous metal with a slight golden tinge. Nickel is a hard and ductile transition metal. Pure nickel is chemically reactive, but large pieces are slow to react with air under standard conditions because a passivation layer of nickel oxide forms on the surface that prevents further corrosion. Even so, pure native nickel is found in Earth's crust only in tiny amounts, usually in ultramafic rocks, and in the interiors of larger nickel–iron meteorites that were not exposed to oxygen when outside Earth's atmosphere.
  
  Meteoric nickel is found in combination with iron, a reflection of the origin of those elements as major end products of supernova nucleosynthesis. An iron–nickel mixture is thought to compose Earth's outer and inner cores. (Full article...)
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  Aubin Grove bus station entrance in April 2017

  
  Aubin Grove railway station is a suburban railway station serving Atwell, Aubin Grove, Hammond Park and Success, which are suburbs of Perth, Western Australia. It is on the Mandurah line, which is part of the Transperth network, and is located immediately north of Russell Road in the median of the Kwinana Freeway. It has two platform faces on a singular island platform, which is linked to either side of the freeway by a pedestrian overpass. Services run every 10 minutes during peak and every 15 minutes between peak. The journey to Perth station is 23.8 kilometres (14.8 mi) and takes 21 minutes. The station has a bus interchange with four bus stands and seven regular bus routes.
  
  Construction of the station was promised by both major political parties ahead of the 2013 Western Australian state election. A tender was released for the station's construction in July 2014, with a projected cost of A$80 million for the whole project, including the purchase of two Transperth B-series trains. The design contract was awarded in February 2015 to a joint venture between Coniglio Ainsworth Architects and M. P. S. Architects. The scope of the project was broadened in April 2015 to include the widening of the Russell Road bridge over the freeway, which increased the project budget to $105 million. Construction on the station began in March 2016, and it was opened on 23 April 2017, with the final cost being $125 million. (Full article...)
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  K-87 is a 8.625-mile-long (13.881 km) north–south state highway in the U.S. state of Kansas. The highway runs from the end of state maintenance, where it continues as 26th Road, in the community of Vliets north to U.S. Route 36 (US 36) west of the community of Baileyville. The highway travels through farmlamd and is a two-lane highway its entire length.
  
  K-87 was first established in October 1932, as a short spur connecting Vliets to K-9. On July 9, 1947, the highway was approved to be extended north to US-36. The entire length of the highway was paved by 1958. Since it was extended north, its alignment has not changed. (Full article...)
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  Manhattan bound platform

  
  The Union Street station is a local station on the BMT Fourth Avenue Line of the New York City Subway. It is located at the corner of Fourth Avenue and Union Street in Brooklyn, New York City, serving the communities of Park Slope, Gowanus and Carroll Gardens. It is served by the R train at all times. The D and N trains also stop here during late nights, and some rush-hour W trains stop here in the peak direction.
  
  The Union Street station was constructed as part of the Fourth Avenue Line, which was approved in 1905. Construction on the segment of the line that includes Union Street started on December 20, 1909, and was completed in September 1912. The station opened on June 22, 1915, as part of the initial portion of the BMT Fourth Avenue Line to 59th Street. The station's platforms were lengthened in 1926–1927, and again during a renovation in 1968–1970. The station was also renovated in 1970 and in the mid-1990s. (Full article...)
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  A similar flight of five Grumman TBF Avengers

  
  Flight 19 was the designation of a group of five General Motors TBM Avenger torpedo bombers that disappeared over the Bermuda Triangle on December 5, 1945, after losing contact during a United States Navy overwater navigation training flight from Naval Air Station Fort Lauderdale, Florida. All 14 naval aviators on the flight were lost, as were all 13 crew members of a Martin PBM Mariner flying boat that subsequently launched from Naval Air Station Banana River to search for Flight 19.
  
  A report by Navy investigators concluded that flight leader Lt. Charles C. Taylor mistook small islands offshore for the Florida Keys after his compasses stopped working, resulting in the flight heading over open sea and away from land. The report was later amended by the Navy to read "cause unknown" to avoid blaming Taylor for the loss of five aircraft and 14 men. The report attributed the loss of the PBM search aircraft to an explosion in mid-air while searching for the flight. (Full article...)
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  Extended portion of southbound platform

  
  The 86th Street station is a local station on the IRT Broadway–Seventh Avenue Line of the New York City Subway. Located at the intersection of West 86th 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 86th 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 86th 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...)
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  State Route 308 (SR 308) is a 3.42-mile-long (5.50 km) state highway in the U.S. state of Washington, serving the community of Keyport in Kitsap County. The highway travels generally east from an interchange with SR 3 east of Naval Base Kitsap at Bangor to the main entrance of the Naval Undersea Warfare Center in Keyport. SR 308 was codified as the Keyport branch of State Road 21 in 1929 and continued as the Keyport branch of Primary State Highway 21 (PSH 21) in 1937. During the 1964 highway renumbering, the branch became a section of SR 303, which ran from Bremerton to Bangor and had a spur route serving Keyport. SR 308 was established in 1971 along the old route of SR 303 Spur and was extended in 1991 to the SR 3 freeway after SR 303 was re-routed onto a new freeway in Silverdale. (Full article...)

Selected picture

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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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  Australia Telescope Compact Array

  Photograph credit: John Masterson, CSIRO; restored by Bammesk

  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.
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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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  Eiffel Tower

  Photo: Benh Lieu Song

  The Eiffel Tower as seen from the Champ de Mars. At 324 metres (1,063 ft) tall, the tower, an iron lattice tower, is the tallest building in Paris, the most-visited paid monument in the world, as well as one of the most recognizable structures in the world. Named after its designer, Gustave Eiffel, it was built as an entrance arch for the 1889 Exposition Universelle and has since become the most prominent symbol of both Paris and France.
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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.
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  Flat-four engine

  Photograph: ULPower Aero Engines

  The 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.
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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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  BMW S1000RR

  Photograph credit: Stefan Krause

  The 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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  Rigger

  Photo credit: Alfred T. Palmer

  "Big Pete" Ramagos, rigger at work on Douglas Dam, Tennessee, June 1942. A rigger is a person or company which specializes in the lifting and/or moving of extremely large and/or heavy objects. Riggers use equipment expressly designed for moving and lifting objects where ordinary material handling equipment cannot go.
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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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  Trojan Room coffee pot

  Picture: Quentin Stafford-Fraser

  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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  Windmills

  Photograph: Uberprutser

  A 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.
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  Geneva drive

  Animation: Mike1024

  The Geneva drive is a gear mechanism that translates a continuous rotation into an intermittent rotary motion. The rotating drive wheel has a pin that reaches into a slot of the driven wheel advancing it by one step. The drive wheel also has a raised circular blocking disc that locks the driven wheel in position between steps. Such a mechanism is used in film projectors, watches, and indexing tables, among others.
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  Windmill

  Photo credit: Michael Reeve

  Pitstone Windmill, believed to be the oldest windmill in the British Isles
  
  A windmill is an engine powered by wind energy. In Europe, windmills have been used since the Middle Ages. They were developed from the 12th century, apparently from technology gained by crusaders who came into contact with windmills in the Middle East. Persian sources indicate windmill use as early as the 7th century BC. In the United States, the development of water-pumping windmills was a major factor in allowing the farming of vast areas of North America.
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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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  Union Pacific 844

  Photo: Drew Jacksich; edit: Bruce1ee

  Union Pacific 844 at Painted Rocks, Nevada, on a run from Elko to Sparks, on September 15, 2009. Built in 1944, it was the last steam locomotive delivered to Union Pacific and is the only steam locomotive never retired by a North American Class I railroad.
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  Nuclear weapon

  Image credit: Fastfission

  Schematic 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).
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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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  Movable type

  Photo credit: Willi Heidelbach

  A composing stick and movable type, the system of printing and typography using pieces of metal type, made by casting from matrices struck by letterpunches. The text on the stick reads, "The quick brown fox jumps over the lazy dog and feels as if he were in the seventh heaven of typography together with Hermann Zapf, the most famous artist of the" [sic].

Main topics

General images -

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

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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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  Thomas Edison with his second phonograph, photographed by Levin Corbin Handy in Washington, April 1878 (from History of technology)
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  Walls at Sacsayhuaman (from History of technology)
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  Pont du Gard in France, a Roman aqueduct (from History of technology)
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  Edison electric light bulbs 1879–80 (from History of technology)
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  Solid-state air batteries
  Li-Air composition (from Emerging technologies)
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  The compartmented water wheel, here its overshot version (from History of technology)
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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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  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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  Top 30 AI patent applicants in 2016 (from Emerging technologies)
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  A water-powered mine hoist used for raising ore, ca. 1556 (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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  Agriculture preceded writing in the history of technology. (from History of technology)
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  Newcomen steam engine for pumping mines (from History of technology)
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  Clock from Salisbury Cathedral, ca. 1386 (from History of technology)
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  The preserved Rocket (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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  'BUILD YOUR OWN TELEVISION RECEIVER.' Science and Invention magazine cover, November 1928 (from Invention)
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  A variety of stone tools (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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  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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  An axehead made of iron, dating from the Swedish Iron Age (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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  3D printer (from Emerging technologies)
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  Dome of Florence Cathedral (from History of technology)
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  NASA Fuel cell stack
  Direct-methanol cell (from Emerging technologies)

Did you know (auto-generated) -

• ... that Kathanar – The Wild Sorcerer is being shot on a custom-built studio spanning 45,000 square feet (4,200 m²), utilizing the virtual production technology?
• ... that ice XVII (structure shown) potentially has a use in green technology as a medium for storing hydrogen?
• ... that OPTi Inc. won a patent suit against Apple for unauthorized use of "predictive snooping" technology?
• ... that Flathead Lake Biological Station can detect invasive aquatic species in real-time using eDNA technology?
• ... that Criccieth Castle combined the "latest advances in military technology" with the "haphazard Welsh castle building style"?
• ... that it was Caltech experimental physicist Rana X. Adhikari's idea to build a gravitational-wave observatory in India?
• ... that Mary Earle was born near Ben Nevis, and although she became a professor of food technology in New Zealand, she never forgot her Scottish roots?
• ... 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 (/ˈiːlɒn/; born June 28, 1971) is a businessman known for his key roles in the space company SpaceX and the automotive company Tesla, Inc. His 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. In November 2024, United States president-elect Donald Trump appointed Musk as the co-chair of the proposed Department of Government Efficiency (DOGE) in the second Trump administration. Musk 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 search results

  
  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 2023, 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. Founded in 1994 by Jeff Bezos in Bellevue, Washington, the company originally started as an online marketplace for books but gradually expanded its offerings to include a wide range of product categories, referred to as "The Everything Store". Today, Amazon is considered one of the Big Five American technology companies, the other four being Alphabet, Apple, Meta, 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 non-profit 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

November 16, 2024 – 2024 Wuxi stabbing attack

Eight people are killed and 17 others are injured in a stabbing spree at the Wuxi Institute of Technology in Yixing, Jiangsu, China. The suspect, a 21-year-old student, is arrested. (CNN) (Reuters)

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)

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