Portal:Technology
Wikipedia portal / From Wikipedia, the free encyclopedia
![]() | Portal maintenance status: (November 2018)
|
![](http://upload.wikimedia.org/wikipedia/commons/thumb/7/7d/Ur_chariot.jpg/640px-Ur_chariot.jpg)
Technology is the application of conceptual knowledge to achieve practical goals, especially in a reproducible way. The word technology can also mean the products resulting from such efforts, including both tangible tools such as utensils or machines, and intangible ones such as software. Technology plays a critical role in science, engineering, and everyday life.
Technological advancements have led to significant changes in society. The earliest known technology is the stone tool, used during prehistoric times, followed by the control of fire, which contributed to the growth of the human brain and the development of language during the Ice Age. The invention of the wheel in the Bronze Age allowed greater travel and the creation of more complex machines. More recent technological inventions, including the printing press, telephone, and the Internet, have lowered barriers to communication and ushered in the knowledge economy. (Full article...)
Recognized articles - load new batch
- Image 1State Route 98 (SR 98) is a state highway in the U.S. state of California. It is a loop of Interstate 8 (I-8) running west to east south of the Interstate through the border city of Calexico. It passes through the city of Calexico and ends east of Holtville. The highway was added to the state highway system in 1933, and signed as Route 98 by 1938. The highway was paved and rerouted to its current path during the 1950s. (Full article...)
- Image 2
Great Notch station was a small New Jersey Transit facility in the Great Notch section of Little Falls, New Jersey. The station was served seven times a day, three inbound morning trains to Hoboken Terminal and four outbound evening trains from Hoboken by the Montclair-Boonton Line from Monday to Friday. Located at the intersection of Notch Road and Long Hill Road, it was the second of three stations in Little Falls, the other two being Montclair State University and Little Falls and, after electrification, was the first on the line to be strictly served by diesel trains. However, most trains bypassed this station and continued on to Little Falls (westbound) and Montclair State University (eastbound). The station was served by a double track which ended west of the station. The last trains stopped at the station on January 15, 2010, at 7:41pm.
Train service at Great Notch originated in 1873, as part of the Montclair Railway. Service to Caldwell began in 1891, when the Caldwell Railway opened, serving Great Notch, Overbrook Hospital, Verona, and Caldwell. The station at Great Notch was first constructed in 1905 as a double station building for the Erie Railroad. The station was a green and red building serving the New York and Greenwood Lake Railway, along with the Caldwell Branch. The station also used an old boxcar as a tool shed for maintenance. By the early 1970s, the station had fallen into disrepair, and by 1974, was repainted Erie Railroad-style red with the tool shed box car removed. The station was abandoned when the Erie-Lackawanna Railroad went out of business and was later picked up by New Jersey Transit. After making deals with the mayor of Little Falls, New Jersey Transit gave the station a one-year "trial" to attract ridership. Ridership went down, however, and so the trial was canceled on December 18, 2009. The town of Little Falls was contacted by New Jersey Transit at that time, reporting that the Great Notch station would be closed on January 17, 2010 due to the "anemic" ridership at the station. (Full article...) - Image 3
Glen Parmelee Robinson, Jr. (September 10, 1923 – January 16, 2013), called the "father of high-tech industry in Georgia", was an American businessman and founder of Scientific Atlanta, now a subsidiary of Cisco Systems. Robinson was the first employee of Scientific Atlanta, where he remained CEO then Chairman of the company until he retired.
Initially a ham radio enthusiast and subsequently a graduate of the Georgia Institute of Technology (Georgia Tech) with both bachelor's and master's degrees in physics, Robinson worked at the Georgia Tech Research Institute and the Oak Ridge National Laboratory before founding Scientific Atlanta. Later in life, he founded and invested in numerous Atlanta-based science-related companies. Robinson was named an IEEE Fellow and held at least 39 patents in fields including solar energy devices and antenna systems. (Full article...) - Image 4State Route 70 (SR 70) is a state highway in the U.S. state of California, connecting SR 99 north of Sacramento with U.S. Route 395 (US 395) near Beckwourth Pass (lowest in the Sierra Nevada) via the Feather River Canyon. Through the Feather River Canyon, from SR 149 to US 395, SR 70 is the Feather River Scenic Byway, a Forest Service Byway that parallels the ex-Western Pacific Railroad's Feather River Route.
The Beckwourth Trail was the earliest predecessor of SR 70, which was a spur of the California Trail. This was followed by the railroad, mostly built on the route of the trail; a dirt road was needed for construction that was later converted into part of the present state highway. Construction on the highway began in 1928, which involved the boring of three tunnels. Previously, the road was signed as U.S. Route 40 Alternate, crossing the Sierra Nevada at a lower elevation than Donner Pass on US 40, now Interstate 80 (I-80). The road was renumbered SR 70 in the 1964 state highway renumbering. Today, portions of SR 70 have been upgraded to a four-lane expressway, and even a freeway in a few locations. (Full article...) - Image 5
Turkish Airlines Flight 301 was a passenger flight operated by a Fokker F28-1000 Fellowship of Turkish Airlines registered as TC-JAO that crashed during takeoff at İzmir Cumaovası Airport on 26 January 1974 while en route to Istanbul Yeşilköy Airport, killing 67 of its 73 passengers and crew.
The aircraft spent the night prior to the accident outside in freezing temperatures, causing frost accumulation on the wings, which was unnoticed by the crew before departure. During takeoff, the pilots over-rotated the plane, causing it to stall, which together with the frost caused the aircraft to climb to just 8–10 metres (26–33 ft) before pitching down and veering left, crashing into the ground and subsequently catching fire. (Full article...) - Image 6
Trans World Airlines (TWA) Flight 159 was a regularly scheduled passenger flight from New York City to Los Angeles, California, with a stopover in Cincinnati/Northern Kentucky International Airport, Kentucky, that crashed after an aborted takeoff from Cincinnati on November 6, 1967. The Boeing 707 attempted to abort takeoff when the copilot became concerned that the aircraft had collided with a disabled DC-9 on the runway. The aircraft overran the runway, struck an embankment and caught fire. One passenger died as a result of the accident.
The NTSB concluded that the crash occurred due to the TWA flight crew's inability to successfully abort takeoff due to the speed of the aircraft, and that a runway overrun was unavoidable at the 707's speed. The disabled DC-9, a Delta Air Lines flight which had reported that it had cleared the runway when in fact it had not, was a contributing factor in the crash. The NTSB recommended that the FAA establish and publicize standards of safe clearance from runway edges for both aircraft and ground vehicles which also take into account the exhaust fumes of jet engines. The board also recommended a reevaluation of training manuals and aircraft procedures in regard to abort procedures. (Full article...) - Image 7The IND 63rd Street Line and BMT 63rd Street Line, also referred to as the 63rd Street Crosstown, Crosstown Route, or Route 131-A, are two rapid transit lines of the B Division of the New York City Subway system. The two lines run under 63rd Street in the Upper East Side of Manhattan, with a cross-platform interchange at the Lexington Avenue–63rd Street station.
Each line consists of two tracks in a stacked configuration, with the southbound tracks of each line parallel to each other on the upper level, while the northbound tracks are parallel on the lower level. Crossover connections between each line's respective tracks are located just to the west of the Lexington Avenue station. The IND line, the southern of the two lines, is served by F trains at all times; it connects the IND Sixth Avenue Line in Manhattan to the IND Queens Boulevard Line in Queens. It uses the upper level of the bi-level 63rd Street Tunnel to travel under the East River between Manhattan and Queens. The northern, BMT, line is served by the Q train at all times, although a limited number of N and R trains also serve the line during rush hours. Also known as the Second Avenue Connection, it links the BMT Broadway Line to the Second Avenue Subway, both in Manhattan. The crossover between the lines has been used in the past during service disruptions as well as during the Manhattan Bridge closures in the late 1990s. (Full article...)
Selected picture
- Image 1Photo: Bachrach Studios; Restoration: Michel VuijlstekeThomas 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.
- Image 2Photograph credit: Langley Research Center; restored by Adam CuerdenMary Jackson (1921–2005) was an African American mathematician and aerospace engineer at the National Advisory Committee for Aeronautics, which was succeeded by NASA in 1958. For most of her career, she worked at Langley Research Center in Hampton, Virginia; starting as a computer at the segregated West Area Computing division, she later took advanced engineering classes and, in 1958, became NASA's first black female engineer.
After 34 years at NASA, Jackson had earned the most senior engineering title available. Realizing that she could not earn further promotions without becoming a supervisor, she accepted a demotion to become a manager of the Federal Women's Program in the NASA Office of Equal Opportunity Programs, as well as of the Affirmative Action Program. In this role, she worked to influence both the hiring and promotion of women in NASA's science, engineering and mathematics careers. She was portrayed by Janelle Monáe as a lead character in the 2016 film Hidden Figures. This picture, taken in 1980, shows Jackson working at NASA Langley. - Image 4Photo: Drew Jacksich; edit: Bruce1eeUnion 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.
- Image 5Photograph: UberprutserA windmill is a mill that converts the energy of wind into rotational energy by means of vanes called sails or blades. Traditional windmills were often used to mill grain, pump water, or both. Most modern windmills take the form of wind turbines used to generate electricity, or windpumps used to pump water, either for land drainage or to extract groundwater.
Here, the smock mill Goliath is viewed in front of the wind farm Growind in Eemshaven in the Netherlands. - Image 6Image credit: Lewis HineA structural worker bolts beams on the framework during the construction of the Empire State Building in New York City. The 1,250-foot (380 m) building opened on May 1, 1931, at the time the tallest building in the world, overtaking the Chrysler Building (seen to the right), which had just been completed the year before. The addition of a pinnacle and antennas later increased its overall height to 1,472 feet (449 m).
- Image 7A diagram showing the parts of a tugboat, a boat used to maneuver large ships in harbours, over the open sea, or through rivers and canals. They also tow barges, disabled ships, and oil rigs. Equipped with powerful engines producing thousands of horsepower, extensive rigging equipment, and a fender of tires for protection, tugboats can push or tow large vessels with high precision and speed.
- Image 8The OLPC XO-1 is an inexpensive subnotebook laptop computer intended to be distributed to children in developing countries.
- Image 9A 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.
- Image 10Photo: IkiwanerAn Agusta A109 rescue helicopter leaves Mount Pilatus, near Lucerne, Switzerland, after recovering a patient. Later renamed AgustaWestland AW109, the A109 is a helicopter manufactured by Agusta (now AgustaWestland) of Italy. It is a light-weight, twin-engine, eight-seat multi-purpose craft.
- Image 11Photo credit: Richard BartzA parabolic antenna, a high-gain reflector antenna used for radio, television and data communications, at Erdfunkstelle Raisting, the largest facility for satellite communication in the world, based in Raisting, Bavaria, Germany. Parabolic antennas work by reflecting electromagnetic radiation off the paraboloid dish to or from the feed horn (center), for reception or transmission respectively.
- 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.
- Image 13Image credit: Michael OttoA pastoral scene of a lone house, composed using Blender, an open source 3D computer graphics software. Blender can be used for a number of applications and is available for a wide variety of operating systems.
- Image 14Photograph credit: Michael MainieroThe SOCATA TBM (now Daher TBM) is a family of high-performance single-engine turboprop business and utility light aircraft manufactured by Daher. This SOCATA TBM 900 was photographed in flight during the 2015 EAA AirVenture Oshkosh airshow in the U.S. state of Wisconsin. The aircraft features a Pratt & Whitney Canada PT6A-64 engine, and a five-blade carbon-fiber propeller, which increases performance and decreases cabin noise. In a passenger configuration, the pressurized cabin is typically fitted with highly finished interiors, featuring luxury materials such as leather and wood veneers.
- Image 15The 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. - Image 16A 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.
- Image 17Animation: Mike1024The 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.
- Image 18Photograph: NASAA self-portrait by the Mars rover Curiosity on October 31, 2012. The mosaic is stitched from a set of 55 images taken by the Mars Hand Lens Imager at "Rocknest," the spot in Gale crater where the mission's first scoop sampling took place. Self-portraits such as this help NASA document the state of the rover and track changes, such as dust accumulation and wheel wear.
- Image 19Photograph: 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.
- Image 20A 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 - load new batch
- Image 1'BUILD YOUR OWN TELEVISION RECEIVER.' Science and Invention magazine cover, November 1928 (from Invention)
- Image 3Walls at Sacsayhuaman (from History of technology)
- Image 4Eric M. C. Tigerstedt (1887–1925) was known as a pioneer of sound-on-film technology. Tigerstedt in 1915. (from Invention)
- Image 5Top 30 AI patent applicants in 2016 (from Emerging technologies)
- Image 10The preserved Rocket (from History of technology)
- Image 11Agriculture preceded writing in the history of technology. (from History of technology)
- Image 12Self-replicating 3D printer (from Emerging technologies)
- Image 13Alessandro Volta with the first electrical battery. Volta is recognized as an influential inventor. (from Invention)
- Image 14Edison electric light bulbs 1879–80 (from History of technology)
- Image 15Thomas Edison with his second phonograph, photographed by Levin Corbin Handy in Washington, April 1878 (from History of technology)
- Image 16A variety of stone tools (from History of technology)
- Image 21Ford assembly line, 1913. The magneto assembly line was the first. (from History of technology)
- Image 22The 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)
- Image 233D printer (from Emerging technologies)
- Image 26A 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)
- Image 27Newcomen steam engine for pumping mines (from History of technology)
Did you know (auto-generated) - load new batch
![](http://upload.wikimedia.org/wikipedia/commons/thumb/4/44/Nuvola_apps_filetypes.svg/47px-Nuvola_apps_filetypes.svg.png)
- ... that Justin Yu, the current Classic Tetris World Champion, is also a cellist in MIT's video game orchestra?
- ... 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 racing driver James Sofronas worked as a salesman for a technology company to buy the Nissan NX 2000 required for his first competitive race?
- ... that Małgorzata Kalinowska-Iszkowska was awarded a Polish Gold Cross of Merit for her work in information technology?
- ... that OPTi Inc. won a patent suit against Apple for unauthorized use of "predictive snooping" technology?
- ... that Guy Parmelin, now President of Switzerland, opened the study program of cyber security of the Lucerne School of Information Technology in 2018?
- ... that Flathead Lake Biological Station can detect invasive aquatic species in real-time using eDNA technology?
- ... that Peter Corby's electric trouser press used technology designed for Concorde?
Top 10 WikiProject Technology popular articles of the month
- Image 1
YouTube is an American online video sharing platform owned by Google. Accessible worldwide, YouTube was launched on February 14, 2005, by Steve Chen, Chad Hurley, and Jawed Karim, three former employees of PayPal. Headquartered in San Bruno, California, United States, it is the second most visited website in the world, after Google Search. As of January 2024, YouTube has more than 2.7 billion monthly users, who collectively watch more than one billion hours of videos every day. , 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 2ChatGPT is a chatbot and virtual assistant developed by OpenAI and launched on November 30, 2022. Based on large language models (LLMs), it enables users to refine and steer a conversation towards a desired length, format, style, level of detail, and language. Successive user prompts and replies are considered at each conversation stage as context. (Full article...)
- Image 3
Elon Reeve Musk FRS (/ˈiːlɒn/; born June 28, 1971) is a businessman and investor known for his key roles in space company SpaceX and automotive company Tesla, Inc. Other involvements include ownership of X Corp., formerly Twitter, and his role in the founding of The Boring Company, xAI, Neuralink and OpenAI. He is one of the wealthiest people in the world; , Forbes estimates his net worth to be US$221 billion. (Full article...) - Image 4Facebook 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. , 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...)
- Image 5Headquarters in Santa Clara, California, in 2023
Nvidia Corporation (/ɛnˈvɪdiə/, en-VID-ee-ə) is an American multinational corporation and technology company headquartered in Santa Clara, California, and incorporated in Delaware. It is a software and fabless company which designs and supplies graphics processing units (GPUs), application programming interfaces (APIs) for data science and high-performance computing, as well as system on a chip units (SoCs) for the mobile computing and automotive market. Nvidia is also a dominant supplier of artificial intelligence (AI) hardware and software. (Full article...) - Image 6
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...) - Image 7The Google logo used since 2015
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 8
Video views per week of a viral video (Gangnam Style), illustrating viral growth to peak weekly viewership, in this case, in the eleventh week after it was posted.
A viral video is a video that becomes popular through a viral process of Internet sharing, typically through video sharing websites such as YouTube as well as social media and email. For a video to be shareable or spreadable, it must focus on the social logics and cultural practices that have enabled and popularized these new platforms. (Full article...) - Image 9
X, commonly referred to by its former name Twitter, is a social networking service. It is one of the world's largest social media websites and the seventh-most visited website in the world. Users can share short text messages, images, and videos in posts (formerly "tweets") and like or repost/retweet other users' content. 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...) - Image 10OpenAI is an American artificial intelligence (AI) research organization founded in December 2015 and headquartered in San Francisco, California. Its mission is to develop "safe and beneficial" artificial general intelligence, which it defines as "highly autonomous systems that outperform humans at most economically valuable work". As a leading organization in the ongoing AI boom, OpenAI is known for the GPT family of large language models, the DALL-E series of text-to-image models, and a text-to-video model named Sora. Its release of ChatGPT in November 2022 has been credited with catalyzing widespread interest in generative AI. (Full article...)
Categories
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)
Related portals
WikiProjects
- Parent project
- Related projects
Things you can do
![]() |
|
Associated Wikimedia
The following Wikimedia Foundation sister projects provide more on this subject:
-
Commons
Free media repository -
Wikibooks
Free textbooks and manuals -
Wikidata
Free knowledge base -
Wikinews
Free-content news -
Wikiquote
Collection of quotations -
Wikisource
Free-content library -
Wikiversity
Free learning tools -
Wikivoyage
Free travel guide -
Wiktionary
Dictionary and thesaurus