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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  Delaware Route 404 (DE 404) is a major state highway in Sussex County, Delaware that spans the east–west width of the state. DE 404's western terminus is at the Maryland border northwest of Bridgeville, where the road continues into that state as Maryland Route 404 (MD 404), and its eastern terminus is at the Five Points intersection with U.S. Route 9 (US 9), DE 1, and US 9 Business (US 9 Bus.) in Nassau. The route passes through rural areas as well as the towns of Bridgeville and Georgetown. DE 404 runs concurrent with DE 18 from east of Bridgeville to Georgetown and with US 9 from Georgetown to Five Points. DE 404 has a business route, DE 404 Bus., that passes through Bridgeville and a truck route, DE 404 Truck, that bypasses Georgetown. DE 404, along with MD 404, serves as a major route connecting the Chesapeake Bay Bridge and the Baltimore–Washington Metropolitan Area with the Delaware Beaches.
  
  DE 404 was first designated by 1936 to run from the Maryland border to DE 18 southeast of Bridgeville. The route was extended east to Five Points by 1987. By 1999, DE 404 was realigned to bypass Bridgeville, with DE 404 Bus. designated on the former route through the town. The new alignment of DE 404 around Bridgeville replaced DE 404 Alternate (DE 404 Alt.), which was designated by 1990. (Full article...)
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  The Conestoga Parkway, officially the Kitchener–Waterloo Expressway,
  is a controlled-access highway in the Canadian province of Ontario, located entirely within the Regional Municipality of Waterloo. The 20.7-kilometre (12.9 mi) route travels east and then north through the cities of Kitchener and Waterloo, and is connected to Highway 401 via Highway 8 and King Street East. The name Conestoga Parkway is not a formal designation, but rather a local name applied to the divided expressway portions of Highway 7, Highway 8 and Highway 85 through Kitchener and Waterloo. The Ministry of Transportation of Ontario (MTO), which built and maintains the route, refers to it as the Kitchener–Waterloo Expressway.
  
  Originally conceived as a ring road in the 1940s, the concept evolved into a pair of at-grade four lane boulevards known as Henry Sturm Boulevard (east–west) and Dryden Boulevard (north–south), for which land was gradually purchased through the 1950s and into the early 1960s. The completion of Highway 401 between Toronto and Highway 8 in 1960 resulted in businesses relocating closer to it; consequently, traffic planners redesigned the boulevards into a continuous four lane expressway in 1962. (Full article...)
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  King's Highway 55, commonly referred to as Highway 55 and historically as the Niagara Stone Road and Black Swamp Road, was a provincially maintained highway in the Canadian province of Ontario, which connected the Queen Elizabeth Way (QEW) with Niagara-on-the-Lake, following Niagara Stone Road. The route divided a swath of wineries at the foot of the Niagara Escarpment, passing at an oblique angle to the concession road grid.
  
  A former Highway 55 designation connected Highway 6 with Highway 53, passing through the Mountain district of Hamilton. The more recent designation was applied in 1970, following the establishment of the Regional Municipality of Niagara. On April 1, 1997, Highway 55 was transferred to Niagara and designated as Niagara Regional Road 55. (Full article...)
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  Metroliner in Pennsylvania Railroad livery before acceptance, circa 1968. All Metroliners, including this car, began revenue service with Penn Central markings.

  
  The Budd Metroliner was a class of American electric multiple unit (EMU) railcar designed for first-class, high-speed service between New York City and Washington, D.C., on the Northeast Corridor. They were designed for operation up to 150 miles per hour (240 km/h): what would have been the first high speed rail service in the Western Hemisphere. Although 164 mph (264 km/h) was reached during test runs, track conditions and electrical issues limited top speeds to 120 mph (190 km/h) in revenue service. The single-ended units were designed to be arranged in two-car sets, which were in turn coupled into four to eight-car trains.
  
  The Pennsylvania Railroad (PRR) ordered 61 Metroliner cars from the Budd Company in 1966 as part of a collaboration with the federal government to improve railroad service between New York, Philadelphia, and Washington. After difficulties testing the cars, PRR successor Penn Central began its eponymous Metroliner service on January 16, 1969. Amtrak took over the service in 1971. (Full article...)
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  Route 172 is a short state highway in New Brunswick, New Jersey, United States. The designation runs along the southernmost leg of George Street, which is county and city-maintained the rest of the way. Route 172 is 0.69 miles (1.11 km) long, serving as a connector from an intersection with County Route 527 (CR 527) and Paul Robeson Boulevard to an interchange with Route 18. The highway was assigned in the 1950s, when nearby Route 18 was realigned onto a new freeway over Burnet Street in New Brunswick. Route 172 underwent a major upgrade during the reconstruction of Route 18, including a roundabout at an intersection with CR 617, and a brand-new interchange with the local lanes of Route 18. (Full article...)
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  Oregon Route 120 (OR 120) is a 2.71-mile-long (4.36 km) unsigned state highway in the U.S. state of Oregon. The highway is internally known by the Oregon Department of Transportation (ODOT) as Swift Highway No. 120. OR 120 runs from a Union Pacific railroad crossing near North Columbia Boulevard to an interchange with Interstate 5 (I-5) and OR 99E. The Swift Highway No. 120 was created in 1931, while the OR 120 designation was created in 2002. (Full article...)
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  Vernon before she sank

  
  SS Vernon was a wooden-hulled American passenger and package freighter that sank in a Lake Michigan storm on October 29, 1887, near Two Rivers, Wisconsin, with the loss of between 36 and 50 lives, making her one of the deadliest shipwrecks ever to have occurred in Wisconsin. Only one of the people on board survived.
  
  Vernon was built in 1886 in Chicago, Illinois by the James P. Smith shipyard. She was built for Alfred Booth, also of Chicago. That same year, she replaced the package freighter A. Booth (which sank on August 29, 1886, near Duluth, Minnesota) in the Duluth, Minnesota-Port Arthur, Ontario run on Lake Superior. For a time in 1887, Vernon was engaged in the iron ore trade, towing schooner barges between Lake Superior ports and Cleveland, Ohio. In July 1887, Vernon briefly came into the ownership of John Pridgeon of Detroit, Michigan, to whom she was sold as compensation for the damage done to his scow barges while they were being towed by Vernon. In August of that same year, Vernon once again became owned by Booth and was operated as part of his Booth Packing Company. Around the same time, she was chartered by the Northern Michigan Line in order to replace their steamer Champlain which had burned down in Charlevoix, Michigan. (Full article...)

Selected picture

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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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  Semi-submersible

  Photo: Agência Brasil

  The semi-submersible oil platform P-51, operated by Brazilian energy company Petrobras, being positioned by tugboats. Semisubs sit on pontoons located under the ocean surface, with the operating deck atop columns, above the sea level. In this manner, they are relatively protected from wave action.
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  Assut de l'Or Bridge

  Photograph: Diego Delso

  The 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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  Tugboat

  Image credit: Al2/Lycaon/Jeff Dahl

  A 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.
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  Wiesen Viaduct

  Photograph: David Gubler

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

  Photograph credit: Petar Milošević

  A thermoplastic-sheathed cable consists of a toughened outer thermoplastic sheath of polyvinyl chloride, covering one or more individual annealed copper conductors. Each of the current-carrying conductors in the "core" is insulated by an individual thermoplastic sheath, coloured to indicate the purpose of the conductor concerned. The protective earth conductor may also be covered with insulation, although, in some countries, this conductor may be left as bare copper. The type of thermoplastic, the dimensions of the conductors and the colour of their individual insulation are specified by the regulatory bodies in the various countries concerned.
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  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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  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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  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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  Nice tramway

  Photograph: Myrabella

  The Nice tramway crossing Place Garibaldi, Nice, where it lowers its pantograph and is powered by batteries. This 8.7-kilometre (5.4 mi), single-line tramway is operated by Veolia Transdev. It opened on 24 November 2007, replacing bus lines 1, 2, 5 and 18.
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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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  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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  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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  Jet engine

  Diagram: Jeff Dahl

  A diagram of a typical turbojet engine. Air is compressed as it enters the engine, and is mixed with fuel that burns in the combustion section. Released through the exhaust, the resulting hot gases provide forward thrust and turn the turbines that drive the fan blades of the compressor.
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  Curiosity (rover)

  Photograph: NASA

  A 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.
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  Keypunch

  Picture: Unknown; restoration: Mmxx

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

  Photograph: David Iliff

  An 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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  Laptop computer

  Credit: Mike McGregor

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

Main topics

General images -

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

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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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  An axehead made of iron, dating from the Swedish Iron Age (from History of technology)
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  3D printer (from Emerging technologies)
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  Ford assembly line, 1913. The magneto assembly line was the first. (from History of technology)
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  A late Bronze Age sword or dagger blade (from History of technology)
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  Dome of Florence Cathedral (from History of technology)
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  Pont du Gard in France, a Roman aqueduct (from History of technology)
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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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  Johannes Gutenberg's printing press was voted the most important invention of the second millennium. (from Invention)
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  A rare 1884 photo showing the experimental recording of voice patterns by a photographic process at the Alexander Graham Bell Laboratory in Washington, D.C. Many of their experimental designs panned out in failure. (from Invention)
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  Thomas Edison with his second phonograph, photographed by Levin Corbin Handy in Washington, April 1878 (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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  'BUILD YOUR OWN TELEVISION RECEIVER.' Science and Invention magazine cover, November 1928 (from Invention)
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  Top 30 AI patent applicants in 2016 (from Emerging technologies)
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  Design for a flying machine (c.1488) by da Vinci (from History of technology)
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  Walls at Sacsayhuaman (from History of technology)
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  The preserved Rocket (from History of technology)
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  Self-replicating 3D printer (from Emerging technologies)
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  Solid-state air batteries
  Li-Air composition (from Emerging technologies)
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  Alessandro Volta with the first electrical battery. Volta is recognized as an influential inventor. (from Invention)
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  Agriculture preceded writing in the history of technology. (from History of technology)
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  NASA Fuel cell stack
  Direct-methanol cell (from Emerging technologies)
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  The compartmented water wheel, here its overshot version (from History of technology)
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  Edison electric light bulbs 1879–80 (from History of technology)
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  A variety of stone tools (from History of technology)
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  The wheel, invented sometime before the 4th millennium BC, is one of the most ubiquitous and important technologies. This detail of the "Standard of Ur", c. 2500 BCE., displays a Sumerian chariot. (from History of technology)

Did you know (auto-generated) -

• ... that Criccieth Castle combined the "latest advances in military technology" with the "haphazard Welsh castle building style"?
• ... that Thomas Hall made an electric train that received power from the rails on which it travelled instead of onboard batteries, a new technology at the time?
• ... 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 several science fiction critics praised "Rock Diver", the first short story by American writer Harry Harrison, for its compelling take on technology for passing through matter?
• ... that touch-screen technology, pay-at-the-pump, car phones, and Coca-Cola Cherry were shown at the 1982 World's Fair?
• ... that Flathead Lake Biological Station can detect invasive aquatic species in real-time using eDNA technology?
• ... that Suresh Jadhav led the development of the COVID-19 vaccine marketed as Covishield?
• ... that it was Caltech experimental physicist Rana X. Adhikari's idea to build a gravitational-wave observatory in India?

Top 10 WikiProject Technology popular articles of the month

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  Musk in 2018

  
  Elon Reeve Musk FRS (/ˈiːlɒn/; born June 28, 1971) is a businessman 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 social media and 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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