Portal:Technology
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Technology is the application of conceptual knowledge for achieving 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...)
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Conservapedia (/kənˌsɜː(r)vəˈpiːdiə/; kən-SU(R)-və-PEE-di-ə) is an English-language, wiki-based, online encyclopedia written from a self-described American conservative and fundamentalist Christian point of view. The website was established in 2006 by American homeschool teacher and attorney Andrew Schlafly, son of the conservative activist Phyllis Schlafly, to counter what he perceived as a liberal bias in Wikipedia. It uses editorials and a wiki-based system for content generation.
Examples of Conservapedia's ideology include its accusations against and strong criticism of former US President Barack Obama—including advocacy of Barack Obama citizenship conspiracy theories—along with criticisms of atheism, feminism, homosexuality, the Democratic Party, and evolution. Conservapedia views Albert Einstein's theory of relativity as promoting moral relativism, falsely claims that abortion increases risk of breast cancer, praises Republican politicians, supports celebrities and artistic works it believes represent moral standards in line with Christian family values, and espouses fundamentalist Christian doctrines such as Young Earth creationism. Conservapedia's "Conservative Bible Project" is a crowd-sourced retranslation of the English-language Bible which the site says to be "free of corruption by liberal untruths." (Full article...) -
Image 2New York City Subway service
The G Brooklyn-Queens Crosstown is an 11.4-mile-long (18.3 km) rapid transit service in the B Division of the New York City Subway. Its route emblem, or "bullet", is colored light green since it uses the IND Crosstown Line.Northern end Court Square Southern end Church Avenue Stations 21 Depot Jamaica Yard Started service August 19, 1933; 90 years ago (1933-08-19) Route mapLegend
Lines used by the Other services sharing tracks with the Unused lines, connections, or service patterns Termini of services
Cross-platform interchange
Platforms on different levels
The G operates at all times between Court Square in Long Island City, Queens, and Church Avenue in Kensington, Brooklyn. It is the only non-shuttle service in the system that does not run within the borough of Manhattan. The G serves two stations in Queens—Court Square and 21st Street, both in Long Island City. Prior to 2010, it served all stations on the IND Queens Boulevard Line between Court Square and 71st Avenue in Forest Hills. In 1939 and 1940, the then-designated GG also used the now-demolished IND World's Fair Line to access the 1939 New York World's Fair. The GG, which became the G in 1985, had its southern terminal at Smith–Ninth Streets from 1976 to 2009. (Full article...) -
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The Norwood–205th Street station (formerly 205th Street station) is the northern terminal station on the IND Concourse Line of the New York City Subway. Located in Norwood, Bronx, it is served by the D train at all times. Due to changes in the street grid of the neighborhood, the station has exits to East 205th Street and Perry Avenue, as well as to East 206th Street and Bainbridge Avenue.
This station was constructed as part of the Independent Subway System, and opened in 1933, along with the rest of the Concourse Line. This station was not intended to be the terminus of the Concourse Line or the D train; the tracks were supposed to have been extended east past Bronx Park and the IRT White Plains Road Line along Burke Avenue to serve the northeast section of the Bronx. But, with the city's acquisition of the New York, Westchester and Boston Railway and subsequent conversion into the IRT Dyre Avenue Line, such an extension was deemed unnecessary. In the early 1950s, vacant land above the east end of the station was given to the New York Public Library and to the New York City Department of Parks and Recreation. (Full article...) -
Image 4New York State Route 146 (NY 146) is a state highway in the Capital District of New York in the United States. It extends for 43 miles (69 km) from Gallupville at NY 443 to near Mechanicville at U.S. Route 4 (US 4) and NY 32. NY 146 is a major thoroughfare in the city of Schenectady, just outside Albany. Most of the route follows an east–west alignment; however, the middle third of the route between Guilderland and Clifton Park runs in a more north–south manner in order to serve Schenectady. At one time, NY 146 had three spur routes; only one—NY 146A—still exists.
NY 146 was assigned as part of the 1930 renumbering of state highways in New York. At the time, NY 146 began at modern NY 443 in Berne and followed what is now NY 156 northeast to Altamont while modern NY 146 west of Altamont was part of NY 156. The alignments of the two routes were flipped in the late 1930s. Other minor realignments have occurred since, most notably near Mechanicville. (Full article...) -
Image 5King's Highway 412, or simply Highway 412, is a controlled-access highway and former tolled highway in the Canadian province of Ontario. The route is 8.9 km (5.5 mi) long, connecting Highway 401 with the eastern extension of Highway 407. The route lies entirely within Whitby in the Regional Municipality of Durham, travelling within one kilometre of the border between Whitby and Ajax and Pickering (Lake Ridge Road).
During planning, the route was known as the West Durham Link. Its designation as Highway 412, the first new 400-series designation in several decades, was confirmed along with Highway 418 on February 6, 2015.
Although initially planned to open in October 2015, the opening was delayed until June 20, 2016. Highway 412 opened alongside the extension of Highway 407 (Highway 407E) from Brock Road in Pickering to Harmony Road in Oshawa. The Ministry of Transportation of Ontario (MTO) thus decided to compensate for delays by waiving all tolls until February 1, 2017. On April 5, 2022, Highway 412 became toll-free. (Full article...) -
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The 14th Street Tunnel shutdown (also referred to as the L Project, the L train shutdown, or the Canarsie Tunnel reconstruction) was the partial closure and reconstruction of the New York City Subway's 14th Street Tunnel that took place from April 2019 to April 2020. The tunnel carries the BMT Canarsie Line (serving the L train) under the East River in New York City, connecting the boroughs of Brooklyn and Manhattan, and is used by an average of 225,000 passengers per weekday. A key segment of the 14th Street Tunnel, between the Bedford Avenue station in Brooklyn and the First Avenue station in Manhattan, would be partially closed for 15 to 20 months to allow for necessary and extensive repairs to the underwater tubes after it was flooded and severely damaged during Hurricane Sandy in 2012.
Two options were proposed in 2016: a three-year construction period where one tube at a time would be closed or an 18-month closure where both tubes would be worked on simultaneously. The Metropolitan Transportation Authority ultimately chose the 18-month closure option because it would be less disruptive to passenger service. The shutdown period was later reduced to 15 months to reduce service disruption. To accommodate displaced passengers, new or expanded bus, subway, and ferry service was to be added, and a 14th Street busway would have been implemented. The shutdown plan was criticized by riders who use the L train and people living along or near 14th Street in Manhattan, as it would have had adverse effects on other subway routes and on vehicular traffic. In January 2019, it was announced that the shutdown would not be a full-time closure, but a night and weekend closure. Ultimately, the line was not closed; night and weekend service was merely reduced. (Full article...) -
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The Flushing–Main Street station (signed as Main Street on entrances and pillars, and Main St–Flushing on overhead signs) is the eastern (railroad north) terminal on the IRT Flushing Line of the New York City Subway, located at Main Street and Roosevelt Avenue in Downtown Flushing, Queens. It is served by the 7 local train at all times and the <7> express train during rush hours in the peak direction.
The Flushing–Main Street station was originally built as part of the Dual Contracts between the Interborough Rapid Transit Company (IRT) and the Brooklyn–Manhattan Transit Corporation (BMT). It opened on January 21, 1928, completing the segment of the Flushing Line in Queens. Although plans existed for the line to be extended east of the station, such an extension was never built. The station was renovated in the 1990s. The Metropolitan Transportation Authority (MTA) began constructing additional staircases, including four new entrances, at the station in 2022. (Full article...)
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Image 1Photograph: 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.
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Image 2Photo 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). -
Image 3Photograph: NASATwo Jet Propulsion Laboratory engineers stand with three vehicles, providing a size comparison of three generations of Mars rovers. Front and center is the flight spare for the first Mars rover, Sojourner, which landed on Mars in 1997 as part of the Mars Pathfinder Project. On the left is a Mars Exploration Rover test vehicle, a working sibling to Spirit and Opportunity, which landed on Mars in 2004. On the right is a test rover for the Mars Science Laboratory, which landed Curiosity on Mars in 2012.
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Image 4Photo 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.
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Image 5Photograph: Diego DelsoThe Assut de l'Or Bridge is a white single-pylon cable-stayed bridge in the City of Arts and Sciences, Valencia, Spain. Completed in 2008, it was designed by Valencian architect and civil engineer Santiago Calatrava as a variant of his cantilever spar cable-stayed bridge in Seville.
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Image 6Photo 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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Image 8Credit: 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.
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Image 9Photograph credit: Matt Steiner and Kees08A 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. -
Image 10Credit: Mike McGregorThe OLPC XO-1 is an inexpensive subnotebook laptop computer intended to be distributed to children in developing countries.
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Image 11Photograph: David GublerThe 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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Image 12An 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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Image 13A 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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Image 14Diagram: Jeff Dahl
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Image 15Photograph: David IliffAn interior view of Stockwell Garage, a large bus garage in Stockwell, London, designed by Adie, Button and Partners and opened in 1952. The 393-foot-long (120 m) roof structure, seen here, is supported by ten very shallow "two-hinged" arched ribs, between which are cantilevered barrel vaults topped by large skylights. The garage, which could originally hold 200 buses, has been a Grade II* Listed Building since 1988.
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Image 16Photograph 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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Image 17The 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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Image 18Photograph: David GublerRail transport is a means of conveyance of passengers and goods by way of wheeled vehicles running on rail tracks. The oldest, man-hauled railways date to the 6th century B.C.; the method grew more popular after the introduction of steam locomotives in the 19th century. Here we can see four BNSF GE C44-9W diesel locomotives hauling a mixed freight train along the Columbia River in the US.
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Image 19A 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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Image 20Photograph 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.
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Image 2Ford assembly line, 1913. The magneto assembly line was the first. (from History of technology)
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Image 5The 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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Image 7Self-replicating 3D printer (from Emerging technologies)
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Image 8Top 30 AI patent applicants in 2016 (from Emerging technologies)
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Image 9Edison electric light bulbs 1879–80 (from History of technology)
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Image 11A 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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Image 12'BUILD YOUR OWN TELEVISION RECEIVER.' Science and Invention magazine cover, November 1928 (from Invention)
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Image 13Eric M. C. Tigerstedt (1887–1925) was known as a pioneer of sound-on-film technology. Tigerstedt in 1915. (from Invention)
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Image 14Alessandro Volta with the first electrical battery. Volta is recognized as an influential inventor. (from Invention)
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Image 15A variety of stone tools (from History of technology)
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Image 16Thomas Edison with his second phonograph, photographed by Levin Corbin Handy in Washington, April 1878 (from History of technology)
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Image 183D printer (from Emerging technologies)
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Image 20The preserved Rocket (from History of technology)
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Image 22Agriculture preceded writing in the history of technology. (from History of technology)
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Image 24Newcomen steam engine for pumping mines (from History of technology)
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Image 26Walls at Sacsayhuaman (from History of technology)
Did you know (auto-generated) - load new batch
- ... that Criccieth Castle combined the "latest advances in military technology" with the "haphazard Welsh castle building style"?
- ... 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 ice XVII (structure shown) potentially has a use in green technology as a medium for storing hydrogen?
- ... 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 it was Caltech experimental physicist Rana X. Adhikari's idea to build a gravitational-wave observatory in India?
- ... that OPTi Inc. won a patent suit against Apple for unauthorized use of "predictive snooping" technology?
- ... that Research Policy is regarded as the leading journal in the field of innovation studies?
- ... that racing driver James Sofronas worked as a salesman for a technology company to buy the Nissan NX 2000 required for his first competitive race?
Top 10 WikiProject Technology popular articles of the month
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YouTube is an American online video sharing platform owned by Google. Accessible worldwide, YouTube 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. YouTube has more than 2.5 billion monthly users, who collectively watch more than one billion hours of videos every day. , 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...) -
Image 2Facebook is a social media and social networking service owned by the 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. , Facebook claimed almost 3 billion monthly active users. As of October 2023, Facebook ranked as the 3rd 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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ChatGPT is a chatbot 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...) -
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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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Elon Reeve Musk (/ˈiːlɒn/ EE-lon; born June 28, 1971) is a businessman and investor. He is the founder, chairman, CEO, and CTO of SpaceX; angel investor, CEO, product architect, and former chairman of Tesla, Inc.; owner, executive chairman, and CTO of X Corp.; founder of the Boring Company and xAI; co-founder of Neuralink and OpenAI; and president of the Musk Foundation. He is one of the wealthiest people in the world; , Forbes estimates his net worth to be $196 billion. (Full article...) -
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X, commonly referred to by its former name Twitter, is a social media website based in the United States. With over 500 million users, it is one of the world's largest social networks and the fifth-most visited website in the world. Users can share text messages, images, and videos through posts (originally called "tweets"). X also includes direct messaging, video and audio calling, bookmarks, lists and communities, and Spaces, a social audio feature. Users can vote on context added by approved users using the Community Notes feature. (Full article...) -
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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...) -
Image 8Artificial 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 uses 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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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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Samuel Benjamin Bankman-Fried (born March 5, 1992), commonly known as SBF, is an American entrepreneur who was convicted of fraud and related crimes in November 2023. Bankman-Fried founded the FTX cryptocurrency exchange and was celebrated as a "poster boy" for crypto. At the peak of his net worth, he was ranked the 41st-richest American in the Forbes 400. (Full article...)
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News
- May 10, 2024 – Israel–Hamas war protests
- Police dismantle encampments and arrest dozens of students protesting at the Massachusetts Institute of Technology in Cambridge, Massachusetts, and the University of Pennsylvania in Philadelphia, Pennsylvania. (Reuters)
- February 27, 2024 –
- Japanese technology company Sony announces it will cut 900 jobs across its global workforce and has also proposed the closure of London Studio as part of the restructuring. (Sony Interactive Entertainment press release)
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