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The Technology Portal
Technology is the result of accumulated knowledge and application of skills, methods, and processes used in industrial production and scientific research. Technology is embedded in the operation of all machines, with or without detailed knowledge of their function, for the intended purpose of an organization. The technologies of society consist of what is known as systems. Systems operate by obtaining an input, altering this input through what is known as a process, and then producing an outcome that achieves the intended purpose of the system.
The earliest and simplest form of technology is the development of knowledge that leads to the application of basic tools. The prehistoric invention of shaped stone tools and the discovery of how to control fire increased the sources of food that were available to human beings. The invention of the wheel led to the travelling technologies that helped humans to further increase the yield of food production, travel in less time, and exchange information and raw materials faster. Humanity then progressed to the development of the printing press, the telephone, the computer, and then the Internet. (Full article...)
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The Huolongjing (traditional Chinese: 火龍經; simplified Chinese: 火龙经; pinyin: Huǒ Lóng Jīng; Wade-Giles: Huo Lung Ching; rendered in English as Fire Drake Manual or Fire Dragon Manual), also known as Huoqitu (“Firearm Illustrations”), is a Chinese military treatise compiled and edited by Jiao Yu and Liu Bowen of the early Ming dynasty (1368–1683) during the 14th-century. The Huolongjing is primarily based on the text known as Huolong Shenqi Tufa (Illustrations of Divine Fire Dragon Engines), which no longer exists. (Full article...)
Frederick Travis Dibnah, MBE (29 April 1938 – 6 November 2004) was an English steeplejack and television personality, with a keen interest in mechanical engineering, who described himself as a "backstreet mechanic".
When Dibnah was born, Britain relied heavily upon coal to fuel its industry. As a child, he was fascinated by the steam engines which powered the many textile mills in Bolton, but he paid particular attention to chimneys and the men who worked on them. He began his working life as a joiner, before becoming a steeplejack. From age 22, he served for two years in the Army Catering Corps of the British Army, undertaking his National Service. Once demobilised, he returned to steeplejacking but met with limited success until he was asked to repair Bolton's parish church. The resulting publicity provided a boost to his business, ensuring he was almost never out of work. (Full article...)- British Airways (BA) is the flag carrier airline of the United Kingdom. It is headquartered in London, England, near its main hub at Heathrow Airport.
The airline is the second largest UK based carrier, based on fleet size and passengers carried, behind easyJet. In January 2011 BA merged with Iberia, creating the International Airlines Group (IAG), a holding company registered in Madrid, Spain. IAG is the world's third-largest airline group in terms of annual revenue and the second-largest in Europe. It is listed on the London Stock Exchange and in the FTSE 100 Index. British Airways is the first passenger airline to have generated more than US$1 billion on a single air route in a year (from 1 April 2017, to 31 March 2018, on the New York-JFK - London-Heathrow route). (Full article...)
Interstate 680 (I-680) is a north–south auxiliary Interstate Highway in Northern California. It curves around the eastern cities of the San Francisco Bay Area from San Jose to Interstate 80 at Fairfield, bypassing cities along the eastern shore of San Francisco Bay such as Oakland and Richmond while serving others more inland such as Pleasanton and Concord.
Built in the 1920s and designated in 1955, I-680 begins at a junction with I-280 and US 101 (Bayshore Freeway), and heads northeast and north-northwest through the northeast part of San Jose. After passing State Route 237 (SR 237) in Milpitas and SR 262 in Fremont, I-680 abruptly turns northeast (where a connection to a SR 238 freeway was planned) and enters the hills and valleys of the California Coast Ranges. The highway crosses over Mission Pass, also known as the Sunol Grade, and descends into the Sunol Valley, where it meets SR 84 near Sunol. From Sunol, I-680 again heads north-northwesterly through valleys, including the San Ramon Valley, along the Calaveras Fault. Junctions along this portion include I-580 in Dublin and SR 24 in Walnut Creek. Beyond the latter interchange, a three-way directional junction with the SR 24 freeway west to Oakland, I-680 heads north into Pleasant Hill, where SR 242 splits and I-680 again heads northwesterly. After the junction with SR 4 in Martinez, the highway crosses the Carquinez Strait on the Benicia-Martinez Bridge, immediately meeting the east end of I-780 on the Benicia end. The remainder of I-680, from Benicia to I-80 at Fairfield, lies between a hilly area to the west representing the southwestern tip of the Vaca Mountains, and a marshy area (along the Suisun Bay and Cordelia Slough) to the east. (Full article...)
Class 73 on the Dovre Line
NSB Class 73 (Norwegian: NSB-type 73) is a class of 22 electric multiple units built by Adtranz for the Norwegian State Railways. The four-car trains were modifications of Class 71, which was again based on the Swedish X2. The A-series consists of 16 intercity trains; they were delivered in 1999 and 2000 and are used on the Bergen, Dovre and Sørland Lines. The intercity service was branded as Signatur until 2003. The B-series consists of six regional trains delivered in 2002 and used on the Østfold Line. The regional trains were originally part of the Agenda concept. The trains have a power output of 2,646 kilowatts (3,548 hp) and a maximum speed of 210 km/h (130 mph). They have an overall length of 108 meters (354 ft) and have a capacity for 208 seated passengers in the A-series and 250 in the B-series. The trains have a tilting mechanism allowing for faster travel through curves.
The trains were delivered late, and were put into service after the Norwegian Railway Inspectorate had given dispensation from parts of the safety regulation. On 17 June 2000, a train derailed at Nelaug Station after an axle broke. The class was grounded for a month, and the investigation showed both design errors, and lack of proper inspection and testing. After they were put back into service, they were not allowed to use the tilting mechanism—thus not being allowed to run faster than their predecessors. The construction was reinforced, and in 2004, the tilting mechanism was re-enabled along with higher speeds. In 2007, a train derailed on the Bergen Line, and questions were raised about the trains' ability to operate in snow, however the accident report showed that the trains' front axle load was just as able to cope with heavy snow conditions as the locomotives running on the line, and that the derailment would have been more severe if the same conditions would hit a normal train with less secure connections between carriages. On 16 June 2011, two units were destroyed when the train ran into a fire in a snow tunnel at Hallingskeid Station. (Full article...)
A Dyson sphere is a hypothetical megastructure that completely encompasses a star and captures a large percentage of its solar power output. The concept is a thought experiment that attempts to explain how a spacefaring civilization would meet its energy requirements once those requirements exceed what can be generated from the home planet's resources alone. Because only a tiny fraction of a star's energy emissions reaches the surface of any orbiting planet, building structures encircling a star would enable a civilization to harvest far more energy.
The first contemporary description of the structure was by Olaf Stapledon in his science fiction novel Star Maker (1937), in which he described "every solar system... surrounded by a gauze of light-traps, which focused the escaping solar energy for intelligent use". The concept was later popularized by Freeman Dyson in his 1960 paper "Search for Artificial Stellar Sources of Infrared Radiation". Dyson speculated that such structures would be the logical consequence of the escalating energy needs of a technological civilization and would be a necessity for its long-term survival. He proposed that searching for such structures could lead to the detection of advanced, intelligent extraterrestrial life. Different types of Dyson spheres and their energy-harvesting ability would correspond to levels of technological advancement on the Kardashev scale. (Full article...)
Petrodollar recycling is the international spending or investment of a country's revenues from petroleum exports ("petrodollars"). It generally refers to the phenomenon of major petroleum-exporting states, mainly the OPEC members plus Russia and Norway, earning more money from the export of crude oil than they could efficiently invest in their own economies. The resulting global interdependencies and financial flows, from oil producers back to oil consumers, can reach a scale of hundreds of billions of US dollars per year – including a wide range of transactions in a variety of currencies, some pegged to the US dollar and some not. These flows are heavily influenced by government-level decisions regarding international investment and aid, with important consequences for both global finance and petroleum politics. The phenomenon is most pronounced during periods when the price of oil is historically high.
The term petrodollar was coined in the early 1970s during the oil crisis, and the first major petrodollar surge (1974–1981) resulted in more financial complications than the second (2005–2014). (Full article...)
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Photograph: 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.
Photograph credit: Dllu
The N700 Series Shinkansen is a Japanese Shinkansen high-speed train with tilting capability developed jointly by JR Central and JR West. It has been used on the Tokaido and San'yō Shinkansen lines since 2007. This photograph shows the train travelling at approximately 300 km/h through Himeji Station, and was captured with a line scan camera using strip photography.
Photograph: 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.
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.
Photograph: LucasboschA 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.
Credit: Mike McGregorThe OLPC XO-1 is an inexpensive subnotebook laptop computer intended to be distributed to children in developing countries.- 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.
Photo: Sergey KrivchikovThe Sukhoi Su-30 is a twin-engine, two-seat supermanoeuverable fighter aircraft developed by Russia's Sukhoi Aviation Corporation. It is a multirole fighter for all-weather, air-to-air and air-to-surface deep interdiction missions. Its primary users are Russia, India, China, Venezuela, and Malaysia.- 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.
Image 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.
Photo: Benh Lieu SongThe Eiffel Tower as seen from the Champ de Mars. At 324 metres (1,063 ft) tall, the tower, an iron lattice tower, is the tallest building in Paris, the most-visited paid monument in the world, as well as one of the most recognizable structures in the world. Named after its designer, Gustave Eiffel, it was built as an entrance arch for the 1889 Exposition Universelle and has since become the most prominent symbol of both Paris and France.
Image 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).
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.
Image credit: Søren Peo PedersenTwo TRS connectors (also known as jack plugs or phone plugs), a common audio connector. They are cylindrical in shape, with two or more contacts. Originally invented for use in telephone switchboards, jack plugs are still widely used, both in the original ¼-inch (6.3 mm) size and in miniaturized versions. The top plug in this image is for stereo connections, while the bottom is for mono.
Photo: Evan AmosThe 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.
Photograph: 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.
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.
Credit: 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.
Photo: 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.
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General images -
The following are images from various technology-related articles on Wikipedia.
An axehead made of iron, dating from the Swedish Iron Age (from History of technology)
Walls at Sacsayhuaman (from History of technology)
Clock from Salisbury Cathedral ca. 1386 (from History of technology)
Design for a flying machine (c.1488) by da Vinci (from History of technology)
3D Printer (from Emerging technologies)
A variety of stone tools (from History of technology)
The compartmented water wheel, here its overshot version. (from History of technology)
Pont du Gard in France, a Roman aqueduct (from History of technology)
Ford assembly line, 1913. The magneto assembly line was the first. (from History of technology)
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)
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)
Alessandro Volta with the first electrical battery. Volta is recognized as an influential inventor. (from Invention)
'BUILD YOUR OWN TELEVISION RECEIVER.' Science and Invention magazine cover, November 1928 (from Invention)
Self-replicating 3D printer (from Emerging technologies)
Artificial intelligence (from Emerging technologies)
Agriculture preceded writing in the history of technology. (from History of technology)
Edison electric light bulbs 1879–80. (from History of technology)
A late Bronze Age sword or dagger blade (from History of technology)
Dome of Florence Cathedral (from History of technology)
Eric M. C. Tigerstedt (1887–1925) was known as a pioneer of sound-on-film technology. Tigerstedt in 1915. (from Invention)
The preserved Rocket (from History of technology)
Newcomen steam engine for pumping mines (from History of technology)
NASA Fuel cell stack
Direct-methanol cell. (from Emerging technologies)
The Mars Exploration Rovers provided huge amounts of information by functioning well beyond NASA's original lifespan estimates. (from History of technology)
Top 30 AI patent applicants in 2016 (from Emerging technologies)
A water-powered mine hoist used for raising ore, ca. 1556 (from History of technology)
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Did you know (auto-generated) -
- ... that Guy Parmelin, now President of Switzerland, opened the study program of cyber security of the Lucerne School of Information Technology in 2018?
- ... that modified mRNA (mRNA translation depicted) is a key technology in the Moderna and BioNTech/Pfizer vaccines against COVID-19?
- ... that Munster Technological University, scheduled to open in 2021, will be only the second university of its type in Ireland?
- ... that the Society for the History of Technology gave Canadian historian Joy Parr a medal for lifetime achievement in technology history and awarded her book Sensing Changes the Edelstein Prize?
- ... 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 Suresh Jadhav led the development of the COVID-19 vaccine marketed as Covishield?
- ... that minimalist city-building game Islanders deliberately omits features such as resource accumulation and technology research in order to focus on the core mechanic of building placement?
- ... that technology executive Scott A. McGregor was the lead developer of Windows 1.0?
Top 10 WikiProject Technology popular articles of the month
Elon Reeve Musk FRS (/ˈiːlɒn/ EE-lon; born June 28, 1971) is a business magnate and investor. He is the founder, CEO, and Chief Engineer at SpaceX; angel investor, CEO, and Product Architect of Tesla, Inc.; founder of The Boring Company; and co-founder of Neuralink and OpenAI. With an estimated net worth of around US$221.4 billion as of July 2022, Musk is the wealthiest person in the world according to both the Bloomberg Billionaires Index and Forbes' real-time billionaires list. (Full article...)
YouTube is an American online video sharing and social media platform headquartered in San Bruno, California. It was launched on February 14, 2005, by Steve Chen, Chad Hurley, and Jawed Karim. It is owned by Google, and is the second most visited website, after Google Search. YouTube has more than 2.5 billion monthly users who collectively watch more than one billion hours of videos each day. , videos were being uploaded at a rate of more than 500 hours of content per minute. (Full article...)
Google LLC (/ˈɡuːɡəl/ (
listen)) is an American multinational technology company that focuses on artificial intelligence, search engine technology, online advertising, 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 one of the world's most valuable brands due to its market dominance, data collection, and technological advantages in the area of artificial intelligence. It is considered one of the Big Five American information technology companies, alongside Amazon, Apple, Meta, and Microsoft. (Full article...)
YouTube Premium (formerly Music Key and YouTube Red) is a subscription service offered by the video platform YouTube. The service provides ad-free access to content across the service, as well as access to premium YouTube Originals programming produced in collaboration with the site's creators, downloading videos and background playback of videos on mobile devices, and access to the YouTube Music music streaming service. (Full article...)
Facebook is an online social media and social networking service owned by American company Meta Platforms. Founded in 2004 by Mark Zuckerberg with fellow Harvard College students and roommates Eduardo Saverin, Andrew McCollum, Dustin Moskovitz, and Chris Hughes, its name comes 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 and, since 2006, anyone over 13 years old. As of 2020, Facebook claimed 2.8 billion monthly active users, and ranked fourth in global internet usage. It was the most downloaded mobile app of the 2010s. (Full article...)
Windows is a group of several proprietary graphical operating system families developed and marketed by Microsoft. Each family caters to a certain sector of the computing industry. Active Windows families include Windows NT and Windows IoT; these may encompass subfamilies, (e.g. Windows Server or Windows Embedded Compact) (Windows CE). Defunct Windows families include Windows 9x, Windows Mobile and Windows Phone. (Full article...)
WhatsApp Messenger, or simply WhatsApp, is an internationally available freeware, cross-platform centralized instant messaging (IM) and voice-over-IP (VoIP) service owned by American company Meta Platforms. It allows users to send text messages and voice messages, make voice and video calls, and share images, documents, user locations, and other content. WhatsApp's client application runs on mobile devices but is also accessible from desktop computers. The service requires a cellular mobile telephone number to sign up. In January 2018, WhatsApp released a standalone business app targeted at small business owners, called WhatsApp Business, to allow companies to communicate with customers who use the standard WhatsApp client. (Full article...)
Amazon.com, Inc. (/ˈæməzɒn/ AM-ə-zon) is an American multinational technology company which focuses on e-commerce, cloud computing, digital streaming, and artificial intelligence. It has been referred to as "one of the most influential economic and cultural forces in the world", and is one of the world's most valuable brands. It is one of the Big Five American information technology companies, alongside Alphabet, Apple, Meta, and Microsoft. (Full article...)
macOS (/ˌmækoʊˈɛs/; previously Mac OS X and later OS X) is a Unix operating system developed and marketed by Apple Inc. since 2001. It is the primary operating system for Apple's Mac computers. Within the market of desktop and laptop computers it is the second most widely used desktop OS, after Microsoft Windows and ahead of Chrome OS. (Full article...)
Twitter is a microblogging and social networking service on which users post and interact with messages known as "tweets", owned by American company Twitter, Inc. Registered users can post, like, and retweet tweets, however, unregistered users have the ability to only read tweets that are publicly available. Users interact with Twitter through browser or mobile frontend software, or programmatically via its APIs. Prior to April 2020, services were accessible via SMS. Tweets were originally restricted to 140 characters, but the limit was doubled to 280 for non-CJK languages in November 2017. Audio and video tweets remain limited to 140 seconds for most accounts. (Full article...)
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