Portal:Technology
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The Technology Portal

Technology is the application of conceptual knowledge for achieving practical goals, especially in a reproducible way. The word technology can also mean the products resulting from such efforts, including both tangible tools such as utensils or machines, and intangible ones such as software. Technology plays a critical role in science, engineering, and everyday life.
Technological advancements have led to significant changes in society. The earliest known technology is the stone tool, used during prehistoric times, followed by the control of fire, which contributed to the growth of the human brain and the development of language during the Ice Age. The invention of the wheel in the Bronze Age allowed greater travel and the creation of more complex machines. More recent technological inventions, including the printing press, telephone, and the Internet, have lowered barriers to communication and ushered in the knowledge economy. (Full article...)
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The Ålgård Line (Norwegian: Ålgårdbanen) is a closed, but not abandoned, railway line between Ganddal and Ålgård in Rogaland, Norway. The 12.24-kilometer (7.61 mi) line was built as a narrow gauge branch line of the Jæren Line by the Norwegian State Railways (NSB) and opened in 1924. It runs through the villages of Foss-Eikeland and Figgjo in Sandnes to Ålgård in Gjesdal. Several proposals were made for the Ålgård Line to become the first part of the main line from Stavanger to Oslo, but instead the Sørlandet Line was connected to the Jæren Line in 1944. At the same time, the Ålgård Line was upgraded to standard gauge.
The line had up to ten daily round trips with diesel multiple units, until passenger traffic was terminated in 1955. Freight traffic remained until 1988, when most of the line was abandoned in 1988, although 3 kilometers (2 mi) was used until 2001. The line is owned by the Norwegian National Rail Administration. The station at Figgjo has been converted to a museum, and the 3-kilometer (2 mi) section from there to Ålgård is used for recreational draisines. There have been proposals to reopen the line either as part of the Jæren Commuter Rail or the planned light rail for Greater Stavanger. (Full article...) - Image 2
Upper Thomson MRT station is an underground Mass Rapid Transit (MRT) station on the Thomson–East Coast line (TEL) in Thomson, Singapore. As the name suggests, it is located along Upper Thomson Road. The five entrances of the station serve various developments such as Soo Chow Estate, Thomson Plaza and the Church of the Holy Spirit.
First announced in August 2012 as part of the Thomson line (TSL), the station was constructed as part of TEL Phase 2 (TEL2) with the merger of the TSL and the Eastern Region line (ERL). The station's construction required multiple traffic diversions along Upper Thomson Road along with a canal. Opening on 28 August 2021 along with the TEL2 stations, Upper Thomson station features Lost In Our (Concrete) Jungle by Troy Chin as part of the Art-in-Transit programme. (Full article...) - Image 3Minnesota State Highway 610 (MN 610) is an east–west freeway in the Twin Cities region of Minnesota. The freeway connects Interstate 94 (I-94), County Road 81 (CR 81), and CR 130 in northern Hennepin County to U.S. Highway 10 (US 10) in southern Anoka County. MN 610 crosses the Mississippi River on the Richard P. Braun Bridge between suburban Brooklyn Park and Coon Rapids. The highway is 12.3 miles (19.8 km) long.
The freeway was authorized in 1975, and most of the sections were completed by 2000 (7.2 mi or 11.6 km); the 2.6-mile (4.2 km) section westward to CR 81 in Maple Grove was completed and opened in 2011. The Minnesota Department of Transportation (MnDOT) opened the last segment extending to I-94 on December 9, 2016. (Full article...) - Image 4Interstate 370 (I-370) is a 2.54-mile (4.09 km) Interstate Highway spur route off I-270 in Gaithersburg, Maryland, to the western end of the Maryland Route 200 (MD 200, Intercounty Connector) toll road at an interchange that provides access to the park and ride lot at the Shady Grove station on the Red Line of the Washington Metro. Despite the number, I-370 does not connect to I-70 itself. The road continues to the west of I-270 as Sam Eig Highway, a surface road. Along the way, I-370 has interchanges with MD 355 and Shady Grove Road. The freeway was completed in the late 1980s to connect I-270 to the Shady Grove station. I-370 was always part of the planned Intercounty Connector but was the only segment to be built at the time. The opening of MD 200 east of I-370 resulted in the truncation of I-370 to the interchange with MD 200 and the redesignation of the road leading into the Shady Grove station as MD 200A. (Full article...)
- Image 5Manresa Island is a former island located in Norwalk, Connecticut, at the mouth of Norwalk Harbor in the Long Island Sound. The earliest name for the landform was Boutons Island, which dates to 1664. By the 19th century, the island had been purchased by John H. Keyser, who lived there and cultivated rare vegetation. He built a causeway in 1860, connecting the island to the mainland of South Norwalk. This gave rise to the name Keyser Island, which was sold to the Jesuits toward the end of the century.
On the island, the Jesuits established the Manresa Institute, which was the only dedicated retreat center in the United States. It hosted both prominent Catholic prelates as well as laymen, as part of a growing lay retreat movement in the United States. The institute was named for the Spanish town of Manresa, in which Saint Ignatius of Loyola, the founder of the Society of Jesus, wrote his Spiritual Exercises. In 1911, the Jesuits sold Keyser Island, which became known as Manresa Island in the mid-twentieth century. (Full article...) - Image 6State Route 16 (SR 16) is a 27.16-mile-long (43.71 km) state highway in the U.S. state of Washington, connecting Pierce and Kitsap counties. The highway, signed as east–west, begins at an interchange with Interstate 5 (I-5) in Tacoma and travels through the city as a freeway towards the Tacoma Narrows. SR 16 crosses the narrows onto the Kitsap Peninsula on the partially tolled Tacoma Narrows Bridge and continues through Gig Harbor and Port Orchard before the freeway ends in Gorst. The designation ends at an intersection with SR 3 southwest of the beginning of its freeway through Bremerton and Poulsbo. SR 16 is designated as a Strategic Highway Network (STRAHNET) corridor within the National Highway System as the main thoroughfare connecting Tacoma to Naval Base Kitsap and a part of the Highways of Statewide Significance program.
SR 16 was created during the 1964 state highway renumbering as the successor to Primary State Highway 14 (PSH 14). PSH 14, which had itself been the successor to State Road 14, traveled northeast from Shelton to Gorst and south to Gig Harbor. PSH 14 was extended over the Tacoma Narrows in 1939 on the unfinished Tacoma Narrows Bridge, which would later collapse months after opening in 1940, into Tacoma over Secondary State Highway 14C (SSH 14C). SR 16 has been expanded into a freeway in stages beginning with the original Nalley Valley Viaduct in Tacoma in 1971, and ending with the opening of an interchange near Port Orchard in 2009. Later improvements to the corridor include the installation of high-occupancy vehicle lanes that connect to I-5 and the rest of the freeway network in Pierce County, which were completed in 2019. (Full article...) - Image 7M-115 is a state trunkline highway in the northwestern part of the Lower Peninsula of the US state of Michigan. The highway takes a generally southeast-to-northwest direction between Frankfort on Lake Michigan and Clare in the central part of the state. The northwestern end is at M-22 next to Betsie Lake; the southeastern end in downtown Clare is at an intersection with Business US Highway 127 (Bus. US 127) and Bus. US 10. In between, the trunkline runs about 96+1⁄2 miles (155.3 km) through woodlands, including areas that are a part of either the Manistee National Forest or the Pere Marquette State Forest. The highway also passes agricultural areas, several lakes in the region and a state park near Cadillac.
M-115 was first designated in the 1920s on the northwestern end near Frankfort. Additional, disconnected sections were designed as part of the trunkline in the 1930s near Cadillac, Farwell and Mesick. All but one of these gaps (Cadillac–Mesick) was eliminated by the end of that decade. The remaining segment was built in the 1950s to unite M-115 into a single highway. The last change came in 1989 when the highway was extended into Clare to its current southern terminus. (Full article...)
Selected picture
- Image 1Image credit: Joaquim Alves GasparAn 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.
- Image 3A disc of copper made by continuous casting, the process whereby molten metal is solidified into a "semifinished" state for subsequent rolling in the finishing mills. Continuous casting replaced the creation of ingots using stationary moulds. The process allows lower-cost production of metal sections with better quality, due to the inherently lower costs of continuous, standardised production of a product, as well as providing increased control over the process through automation. After casting, this disc was then etched to achieve its final state.
- Image 4Photograph credit: Diego DelsoThe Walchensee Hydroelectric Power Station is a storage power station in Bavaria, Germany. The turbines, seen here, are fed by water from the Walchensee which is then released into the Kochelsee. The power station uses the hydraulic head of about 200 metres (660 ft) between the two natural lakes, and water from the Rißbach river is also used to augment the supply. The installed capacity is 124 MW with an annual production of 300 GWh; this is one of the largest of such power plants in Germany.
- Image 5An 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 6Photograph: ULPower Aero EnginesThe ULPower UL260i, a flat-four engine produced by ULPower Aero Engines of Belgium. Flat-four engines are flat engines with four cylinders arranged horizontally in two banks of two cylinders on each side of a central crankcase; they can be used in cars, motorcycles, or aircraft. This type of engine tends to be well-balanced and have efficient cooling, but is expensive to manufacture and considerably wider than other engines.
- Image 7A 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 8Photo: 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.
- Image 9Photograph credit: Unknown; restored by Adam CuerdenGeorge Washington Carver (1860s–1943) was an American agricultural scientist and inventor. Born into slavery in Diamond, Missouri, he was raised by his master Moses Carver after being emancipated, having been separated from his parents as an infant during a kidnapping incident. After college, Carver became a professor at Tuskegee Institute, where he developed techniques to improve soils depleted by repeated plantings of cotton. He wanted poor farmers to grow alternative crops, such as peanuts and sweet potatoes, as a source of their own food and to improve their quality of life. Carver spent years developing and promoting products made from peanuts, although none became commercially successful. Apart from his work to improve the lives of farmers, he was also a leader in promoting environmentalism. Carver received numerous honors for his work, including the NAACP's Spingarn Medal. In an era of very high racial polarization, his fame reached beyond the black community; he was widely recognized and praised in the white community for his many achievements and talents. In 1941, Time magazine dubbed Carver a "black Leonardo".
This picture of Carver was taken around 1910 and is in the collection of the Tuskegee University archives. - Image 10The 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.
- Image 11This 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.
- Image 12A 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.
- Image 13Diagram: Jeff Dahl
- 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 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.
- Image 16Photograph: David GublerThe Wiesen Viaduct is a single-track railway viaduct (concrete blocks with dimension stone coverage) which spans the Landwasser southwest of the hamlet of Wiesen, Switzerland. Designed by Henning Friedrich, then the chief engineer of the Rhaetian Railway, it was built between 1906 and 1909 by the contractor G. Marasi (Westermann & Cie, Zürich) under the supervision of P. Salaz and Hans Studer (RhB). The Rhaetian Railway still owns and uses the viaduct today for regular service with 29 passenger trains per day. An important element of the Davos–Filisur railway, the viaduct is 88.9 metres (292 ft) high, 210 metres (690 ft) long, and has a main span of 55 metres (180 ft). In 1926, the viaduct was the inspiration for Ernst Ludwig Kirchner's painting Brücke bei Wiesen.
- Image 17The OLPC XO-1 is an inexpensive subnotebook laptop computer intended to be distributed to children in developing countries.
- Image 18The Bernina Express passing over the Brusio spiral viaduct. Located near Brusio, Graubünden, Switzerland, the single track nine-arched stone spiral railway viaduct was opened in 1908. It is part of the World Heritage-listed Bernina railway.
- Image 19Photograph: Donald Y TongBurj Khalifa is a skyscraper in Dubai, United Arab Emirates, and currently the tallest man-made structure in the world, at 829.8 m (2,722 ft). It was designed to be the centerpiece of a large-scale, mixed-use development known as Downtown Dubai. Construction took over five years, and the skyscraper was officially opened in January 2010.
- Image 20Photograph: Diego DelsoThe Assut de l'Or Bridge is a white single-pylon cable-stayed bridge in the City of Arts and Sciences, Valencia, Spain. Completed in 2008, it was designed by Valencian architect and civil engineer Santiago Calatrava as a variant of his cantilever spar cable-stayed bridge in Seville.
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General images - load new batch
- Image 3Top 30 AI patent applicants in 2016 (from Emerging technologies)
- Image 4A 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 5Eric M. C. Tigerstedt (1887–1925) was known as a pioneer of sound-on-film technology. Tigerstedt in 1915. (from Invention)
- Image 6Newcomen steam engine for pumping mines (from History of technology)
- Image 10Agriculture preceded writing in the history of technology. (from History of technology)
- Image 11Self-replicating 3D printer (from Emerging technologies)
- Image 12Walls at Sacsayhuaman (from History of technology)
- Image 16The preserved Rocket (from History of technology)
- Image 18Edison electric light bulbs 1879–80 (from History of technology)
- Image 19The 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 20Alessandro Volta with the first electrical battery. Volta is recognized as an influential inventor. (from Invention)
- Image 22The Mars Exploration Rovers provided huge amounts of information by functioning well beyond NASA's original lifespan estimates. (from History of technology)
- Image 24Ford assembly line, 1913. The magneto assembly line was the first. (from History of technology)
- Image 25'BUILD YOUR OWN TELEVISION RECEIVER.' Science and Invention magazine cover, November 1928 (from Invention)
- Image 263D printer (from Emerging technologies)
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Did you know (auto-generated) - load new batch

- ... 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 when Chorus Systèmes SA was founded in 1986, French technology start-up companies were rare?
- ... that Suresh Jadhav led the development of the COVID-19 vaccine marketed as Covishield?
- ... 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 a researcher at the Electronic Frontier Foundation described Google's Federated Learning of Cohorts as "a technology that should not exist"?
- ... that Małgorzata Kalinowska-Iszkowska was awarded a Polish Gold Cross of Merit for her work in information technology?
- ... 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 Theresa M. Korn turned down a scholarship to the Carnegie Institute of Technology in order to become the institute's first female engineer?
Top 10 WikiProject Technology popular articles of the month
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YouTube is an online video sharing and social media platform headquartered in San Bruno, California, United States. Accessible worldwide, 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 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...) - Image 2
ChatGPT, which stands for Chat Generative Pre-trained Transformer, is a large language model-based chatbot developed by OpenAI and launched on November 30, 2022, that 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...) - Image 3Facebook is an online social media and social networking service owned by American technology giant 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, and ranked third worldwide among the most visited websites. It was the most downloaded mobile app of the 2010s. (Full article...)
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Elon Reeve Musk (/ˈiːlɒn/ EE-lon; born June 28, 1971) is a businessman and investor. Musk 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; 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$207 billion , according to the Bloomberg Billionaires Index, and $231 billion according to Forbes, primarily from his ownership stakes in Tesla and SpaceX. (Full article...) - Image 5
X, formerly known as Twitter, is an online social media and social networking service operated by the American company X Corp., the successor of Twitter, Inc. On X, registered users can post text, images and videos. Users can also "like", repost, quote repost, comment on posts, direct message, video and audio call, bookmark, join lists and communities, and join public Spaces with other registered users. Registered users can also leave Community Notes to add context to posts by other registered users. Posting information to the site is often referred to as tweeting, retweeting and quote tweeting. Although the service was renamed to "X", its primary website address remains twitter.com , with the x.com domain name redirecting to that address. (Full article...) - Image 6The 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...) - Image 7
WhatsApp (officially WhatsApp Messenger) is a freeware, cross-platform, centralized instant messaging (IM) and voice-over-IP (VoIP) service owned by United States tech conglomerate Meta Platforms. 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 8
Apple Inc. is an American multinational technology company headquartered in Cupertino, California. , Apple is the world's biggest 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, and Microsoft. (Full article...) - Image 9Artificial intelligence (AI) is the intelligence of machines or software, as opposed to the intelligence of humans or animals. It is also the field of study in computer science that develops and studies intelligent machines. "AI" may also refer to the machines themselves. (Full article...)
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Amazon.com, Inc. (/ˈæməzɒn/ AM-ə-zon, UK also /ˈæməzən/ AM-ə-zən) is an American multinational technology company focusing on e-commerce, cloud computing, online advertising, digital streaming, and artificial intelligence. It has been often referred to as "one of the most influential economic and cultural forces in the world", and is often regarded as one of the world's most valuable brands. It is considered to be one of the Big Five American technology companies, alongside Alphabet (parent company of Google), Apple, Meta and Microsoft. (Full article...)
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News
- 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$385,000) for inadequately addressing child sexual abuse content on Twitter. (AFP via The Manila Times)
- October 2, 2023 – 2023 Nobel Prize in Physiology or Medicine
- Katalin Karikó and Drew Weissman are awarded the Nobel Prize in Physiology or Medicine for developing technology that resulted in mRNA vaccines for COVID-19. (BBC News)
- August 23, 2023 –
- Southwark Crown Court in London, United Kingdom, rules that two teenagers were part of the hacking group Lapsus$ and participated in a blackmail campaign against technology companies, including Rockstar Games, the maker of the Grand Theft Auto video game series. (AP)
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