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 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...)

Recognized articles -

Entries here consist of Good and Featured articles, which meet a core set of high editorial standards.

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  A Class 47 at Birmingham New Street in 1987

  
  The British Rail Class 47 or Brush Type 4 is a class of diesel-electric locomotive that was developed in the 1960s by Brush Traction. A total of 512 Class 47s were built at Brush's Falcon Works in Loughborough and at British Railways' Crewe Works between 1962 and 1968, which made them the most numerous class of British mainline diesel locomotive.
  
  They were fitted with the Sulzer 12LDA28C twin-bank twelve-cylinder unit producing 2,750 bhp (2,050 kW) – though this was later derated to 2,580 bhp (1,920 kW) to improve reliability – and have been used on both passenger and freight trains on Britain's railways for over 55 years. Despite the introduction of more modern types of traction, a significant number are still in use, both on the mainline and on heritage railways. (Full article...)
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  Front view of New London Union Station in July 2012

  
  New London Union Station is a railroad station on the Northeast Corridor located in downtown New London, Connecticut, United States. Union Station is a station stop for most Amtrak Northeast Regional trains and all CTrail Shore Line East commuter rail trains, making it the primary railroad station in southeastern Connecticut. It serves as the centerpiece of the Regional Intermodal Transit Center, with connections to local and intercity buses as well as ferries to Long Island and Fishers Island, New York, and Block Island, Rhode Island. The station has one side platform and one island platform serving the two-track Northeast Corridor; the latter platform also serves a siding track that connects to the New England Central Railroad mainline.
  
  Rail service to New London began with the New London, Willimantic, and Palmer Railroad in 1848 and the New Haven and New London Railroad in 1852. The original stations were each replaced in the 1860s; after several consolidations, they were served by the Central Vermont Railway (CV) and New York, New Haven and Hartford Railroad (New Haven) by the 1870s. After one of the stations burned in 1885, a new three-story brick union station was erected in 1887. It was the last and largest railroad station designed by famed architect H. H. Richardson, and his best according to biographer Henry-Russell Hitchcock. (Full article...)
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  View down southbound express track

  
  The Forest Hills–71st Avenue station (previously known as 71st–Continental Avenues station) is an express station on the IND Queens Boulevard Line of the New York City Subway, located on Queens Boulevard at 71st (Continental) Avenue in Forest Hills, Queens. It is served by the E and F trains at all times, the <F> train during rush hours in the reverse peak direction, and the R train at all times except late nights. It serves as the terminus for the latter service. (Full article...)
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  New York State Route 590 (NY 590) is a 4.98-mile (8.01 km) north–south state highway located in the eastern suburbs of Rochester, New York, in the United States. The route is a controlled-access northward extension of Interstate 590 (I-590) that begins at the Can of Worms, an interchange between I-490, I-590, and NY 590 on the boundary between the town of Brighton and the city of Rochester, and ends at a roundabout with Titus Avenue in the town of Irondequoit. NY 590 is known as the Sea Breeze Expressway, a name derived from the small community of Sea Breeze located near the highway's former northern terminus at Culver Road near the southern shore of Lake Ontario.
  
  The portion of NY 590 between the Can of Worms and NY 104 is part of the northeastern quadrant of the Rochester Outer Loop, a series of freeways that form a beltway around the city of Rochester. At NY 104, the Outer Loop turns west to follow NY 104 through Irondequoit. The Sea Breeze Expressway was built in stages from the 1950s to the 1960s and carried various designations until 1970, when the entirety of the Rochester – Sea Breeze highway was designated as part of NY 47. It was redesignated as NY 590 in 1980. In the late 2000s, the section of NY 590 north of Titus Avenue was reconfigured into a two-lane road named Sea Breeze Drive, and NY 590 was truncated to end at Titus Avenue. (Full article...)
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  M-114 was the designation of a former state trunkline highway and planned beltline in the US state of Michigan around the city of Grand Rapids. It was designated by the end of 1929 on various streets in adjoining cities and townships. By the 1940s, sections of it on the west and south sides of Grand Rapids were given new designations and the segment along the east side of town was finished. By late 1945 the highway designation was completely decommissioned in favor of other numbers. M-114 split into two branches, one running east–west and the other running north–south. The east–west spur routing is now local streets while the rest is part of state highways. (Full article...)
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  M-49 is a north–south state trunkline highway in the south-central portion of the US state of Michigan. It runs from the Ohio state line north to Litchfield through rural Hillsdale County. M-49 is the only Michigan highway in which the road crossing into another state has the same state highway number. M-49 continues as State Route 49 (SR 49), near the Indiana–Michigan–Ohio tripoint south of Camden. The highway dates back to 1930 and was only altered once in the 1940s. M-49 runs through Southern Michigan farmlands connecting several small towns along its path. At one point, M-49 briefly runs concurrently with US Highway 12 (US 12). (Full article...)
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  KiwiRail DL9020 on MetroPort train MP4 at Papakura, Auckland on 29 August 2011.

  
  Rail transport in New Zealand is an integral part of New Zealand's transport network, with a nationwide network of 4,375.5 km (2,718.8 mi) of track linking most major cities in the North and South Islands, connected by inter-island rail and road ferries. Rail transport in New Zealand has a particular focus on bulk freight exports and imports, with 19 million net tonnes moved by rail annually, and 99.5% of New Zealand's exports and imports being transported through the country's seaports.
  
  Rail transport played an important role in the opening up and development of the hinterland outside of New Zealand's predominantly dispersed and coastal settlements. Starting with the Ferrymead Railway in 1863, most public railway lines were short, built by provincial governments and connected major centres to their nearest seaport (such as Christchurch and its port at Lyttelton Harbour). From the 1870s, the focus shifted to building a nationwide network linking major centres, especially during the Vogel Era of railway construction following the abolition of the provinces. Narrow gauge of 3ft 6in (1,067mm) was adopted nationally. Bush tramways or light industrial railways sprang up connecting to the national network as it expanded. Railways became centrally controlled as a government department under the names New Zealand Government Railways or New Zealand Railways Department (NZR), and land transport was heavily regulated from 1931 onwards. NZR eventually expanded into other transport modes, especially with the Railways Road Services, inter-island ferries and Rail Air service. NZR also had an extensive network of workshops. By 1981, NZR employed 22,000 staff. (Full article...)

Selected picture

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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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  George Washington Carver

  Photo: Arthur Rothstein; Restoration: Lise Broer

  A portrait of George Washington Carver, American scientist, botanist, educator and inventor, from 1942. Much of Carver's fame is based on his research into and promotion of alternative crops to cotton, such as peanuts and sweet potatoes. In addition to his work on agricultural extension education for purposes of advocacy of sustainable agriculture and appreciation of plants and nature, Carver's important accomplishments also included improvement of racial relations, mentoring children, poetry, painting, and religion. One of his most important roles was in undermining, through the fame of his achievements and many talents, the widespread stereotype of the time that the black race was intellectually inferior to the white race.
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  Pin tumbler lock

  Photo credit: Eric Pierce

  The 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).
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  Caliper

  Image credit: Joaquim Alves Gaspar

  An animation showing how to use a vernier caliper, which is a caliper that uses a vernier scale to interpolate linear measurements. Vernier calipers can measure internal and external dimensions using, respectively, the uppermost and lower jaws, and also depths, using the depth probe (located at the right end). In this example, the first two digits (2.4) are decided by the location of the zero of the vernier scale in the centimeter scale, and the last digit (0.07), by the first line of the vernier scale that exactly matches a line of the centimeter scale above.
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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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  GameCube

  Photo: Evan Amos

  The GameCube is a sixth generation video game console released by Nintendo beginning in 2001. Meant as a successor to the Nintendo 64, the GameCube sold approximately 22 million units worldwide. It was the third most-successful console of its generation, behind Sony's PlayStation 2 and Microsoft's Xbox. The GameCube was succeeded by the Wii in 2006.
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  Empire State Building

  Image credit: Lewis Hine

  A 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).
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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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  STS-119

  Photo: NASA

  This photo of the International Space Station (ISS) was taken during STS-119, a Space Shuttle mission that delivered and assembled the fourth starboard Integrated Truss Segment, and the final set of solar arrays and batteries to the station. Construction of the ISS is still ongoing and is scheduled to complete in December 2011.
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  Micrometer

  Photograph: Lucasbosch

  A micrometer is a device incorporating a calibrated screw, widely used for precise measurement of components in mechanical engineering and machining. Micrometers are usually, but not always, in the form of calipers (opposing ends joined by a frame). The spindle is a very accurately machined screw and the object to be measured is placed between the spindle and the anvil. The spindle is moved by turning the ratchet knob or thimble until the object to be measured is lightly touched by both the spindle and the anvil.
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  MS Majesty of the Seas

  Photo credit: UpstateNYer

  MS Majesty of the Seas is a Sovereign class cruise ship owned and operated by Royal Caribbean International, a cruise line based in Miami, Florida. Her sister ship MS Sovereign of the Seas was the largest cruise ship in the world at the time of its completion in 1988.
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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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  Commodore 64

  Photo: Evan Amos

  The Commodore 64 is an 8-bit home computer introduced in 1982 by Commodore International. Its low retail price and easy availability led to the system becoming the market leader for three years. It remains the best-selling single personal computer model of all time.
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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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  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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  SOCATA TBM

  Photograph credit: Michael Mainiero

  The 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.
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  Paddle steamer

  Daguerreotype credit: Unknown

  A daguerreotype from the 1850s of the Ben Campbell, a paddle steamer—a ship or boat driven by a steam engine that uses one or more paddle wheels to develop thrust for propulsion. The paddle wheel was the first form of mechanical propulsion for a boat, but has now been almost entirely superseded by more modern forms of marine propulsion.
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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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  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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  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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  Artificial intelligence (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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  Design for a flying machine (c.1488) by da Vinci (from History of technology)
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  A water-powered mine hoist used for raising ore, ca. 1556 (from History of technology)
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  The compartmented water wheel, here its overshot version (from History of technology)
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  Self-replicating 3D printer (from Emerging technologies)
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  Newcomen steam engine for pumping mines (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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  Dome of Florence Cathedral (from History of technology)
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  NASA Fuel cell stack
  Direct-methanol cell. (from Emerging technologies)
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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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  Clock from Salisbury Cathedral, ca. 1386 (from History of technology)
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  3D printer (from Emerging technologies)
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  Edison electric light bulbs 1879–80 (from History of technology)
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  A late Bronze Age sword or dagger blade (from History of technology)
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  Top 30 AI patent applicants in 2016 (from Emerging technologies)
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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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  Agriculture preceded writing in the history of technology. (from History of technology)
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  Solid-state air batteries
  Li-Air composition (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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  Alessandro Volta with the first electrical battery. Volta is recognized as an influential inventor. (from Invention)
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  The Mars Exploration Rovers provided huge amounts of information by functioning well beyond NASA's original lifespan estimates. (from History of technology)
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  The Gutenberg press was voted the most important invention of the second millennium. (from Invention)
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  An axehead made of iron, dating from the Swedish Iron Age (from History of technology)
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  A variety of stone tools (from History of technology)
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  The preserved Rocket (from History of technology)
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  Ford assembly line, 1913. The magneto assembly line was the first. (from History of technology)

Did you know (auto-generated) -

• ... that Kosrae State Museum used virtual reality technology to inspire interest in the state's heritage from local stakeholders and members of the Kosraean diaspora?
• ... that touch-screen technology, pay-at-the-pump, car phones, and Coca-Cola Cherry were shown at the 1982 World's Fair?
• ... that Pamela McCorduck, who chronicled the evolution of artificial intelligence, regretted not recognizing the technology's potential for misuse?
• ... that OPTi Inc. won a patent suit against Apple for unauthorized use of "predictive snooping" technology?
• ... that a researcher at the Electronic Frontier Foundation described Google's Federated Learning of Cohorts as "a technology that should not exist"?
• ... that Turkey's Anadolu Shipyard signed a contract with India's Hindustan Shipyard to transfer technology for the building of five fleet support ships for the Indian Navy?
• ... that Research Policy is regarded as the leading journal in the field of innovation studies?
• ... that when Chorus Systèmes SA was founded in 1986, French technology start-up companies were rare?

Top 10 WikiProject Technology popular articles of the month

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  Logo used since 2017

  
  YouTube is an American online video sharing and social media platform owned by Google. Accessible worldwide, it 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. 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. (Full article...)
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  Facebook is a social media and social networking service owned by American technology conglomerate Meta Platforms. 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 (or older), except in the case of a handful of nations, where the age limit is 14 years. , Facebook claimed 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 (Chat Generative Pre-trained Transformer) is a chatbot developed by OpenAI and launched on November 30, 2022. Based on a large language model, it enables users to refine and steer a conversation towards a desired length, format, style, level of detail, and language. Successive prompts and replies, known as prompt engineering, are considered at each conversation stage as a context. (Full article...)
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  Musk in 2022

  
  Elon Reeve Musk (/ˈiːlɒn/ EE-lon; born June 28, 1971) is a businessman and investor. He is the founder, chairman, CEO, and chief technology officer of SpaceX; angel investor, CEO, product architect and former chairman of Tesla, Inc.; owner, 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 the wealthiest person in the world, with an estimated net worth of US$232 billion , according to the Bloomberg Billionaires Index, and $254 billion according to Forbes, primarily from his ownership stakes in Tesla and SpaceX. (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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  Logo used since July 2023

  
  X, commonly known 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. Users can share and post text messages, images, and videos known historically as "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. Although the service is now called X, the primary URL remains twitter.com , with the x.com domain name redirecting to that address. (Full article...)
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  The Google logo used since 2015

  
  Google LLC (/ˈɡuːɡəl/ ^ⓘ) is an American multinational technology company focusing on artificial intelligence, online advertising, search engine technology, cloud computing, computer software, quantum computing, e-commerce, and consumer electronics. It has been referred to as "the most powerful company in the world" and as one of the world's most valuable brands due to its market dominance, data collection, and technological advantages in the field of artificial intelligence. Alongside Amazon, Apple Inc., Meta, and Microsoft, Google's parent company Alphabet Inc. is one of the five Big Tech companies. (Full article...)
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  Artificial intelligence (AI) is the intelligence of machines or software, as opposed to the intelligence of humans or animals. It is a field of study in computer science that develops and studies intelligent machines. 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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  Logo used since 1998

  
  Apple Inc. (formerly Apple Computer, Inc) is an American multinational technology company headquartered in Cupertino, California. , Apple is the world's largest company by market capitalization, and with US$394.3 billion the largest technology company by 2022 revenue. , Apple is the fourth-largest personal computer vendor by unit sales; the largest manufacturing company by revenue; and the second-largest mobile phone manufacturer in the world. It is considered one of the Big Five American information technology companies, alongside Alphabet (parent company of Google), Amazon, Meta (parent company of Facebook), and Microsoft. (Full article...)

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See also: 2024 in science and technology

December 21, 2023 –

The International Trade Commission rejects Apple’s appeal to a order blocking the company from using technology underlying the Blood oxygen measurement feature on its smart watches. In response, Apple suspends sales of the products. (AP)

November 17, 2023 – APEC United States 2023

The Philippines and the United States sign a deal for the latter to export nuclear technology and materials to the former. (Reuters)

October 24, 2023 –

The Standing Committee of the National People's Congress of China votes to remove several state council members from their positions, including defense minister Li Shangfu, finance minister Liu Kun, and science minister Wang Zhigang. (Reuters via CNA)

October 16, 2023 –

Australia's internet safety commissioner fines American technology company X Corp. for AU$610,500 (US$385,000) for inadequately addressing child sexual abuse content on Twitter. (AFP via The Manila Times)

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