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 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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  • ... that technology developed for use in inkjet printers helped make the automated white blood cell differential, a common blood test, possible?
  • ... that a researcher at the Electronic Frontier Foundation described Google's Federated Learning of Cohorts as "a technology that should not exist"?
  • ... that in 1948 and 1952, nuclear physicist Leslie Shepherd published scientific papers on the use of nuclear technology for interplanetary and interstellar space travel?
  • ... that Carlisle & Finch used carbon-arc technology in both toy trains and military searchlights?
  • ... 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 modified mRNA (mRNA translation depicted) is a key technology in the Moderna and BioNTech/Pfizer vaccines against COVID-19?
  • ... that Małgorzata Kalinowska-Iszkowska was awarded a Polish Gold Cross of Merit for her work in information technology?
  • ... that technology executive Scott A. McGregor was the lead developer of Windows 1.0?

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Icon from Nuvola icon theme for KDE 3.x.
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Iconic image for social science.
Icon for telecommunications
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Author/Creator: Divulgação Petrobras / ABr, Licence: CC BY 3.0 br
Brazil - The first 100% Brazilian oil platform, the P-51 will produce about 180 thousand barrels of oil and 6 million cubic meters of gas per day when operating at full load.
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Author/Creator: AstroBidules, Licence: CC BY-SA 4.0
The Soyuz MS spacecraft and its Soyuz FG rocket
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Eric Magnus Campbell Tigerstedt (1887-1925)
Lone House.jpg
(c) Mayqel, CC-BY-SA-3.0
A lone house. An image made using Blender 3D.
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Author/Creator: Pi.1415926535, Licence: CC BY-SA 4.0
An inbound train at Amory Street station in December 2021
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Walls of the Sacsayhuaman ruin at Cusco.
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Linecons by Designmodo
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Power lines, electricity pylons at Raitersaich substation, Roßtal, Germany
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XO, Children's Machine, OLPC, $100 laptop/ Beta 1 machine.
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GG1 number 4876 at the Baltimore Railroad Museum, August 2008
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Author/Creator: Fir0002, Licence: GFDL 1.2
An old cart in Australia
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John Herschel (1815-1879), photographed by Julia Margaret Cameron in April 1867. Image: 31.8 x 24.9 cm (12 1/2 x 9 13/16 in.) Mount: 39.9 x 32.9 cm (15 11/16 x 12 15/16 in.)
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Netflix 2015 logo
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Highway marker for a Washington state Scenic and Recreational Highway
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Google logo since September 1, 2015. The letters of "Google" are each purely colored (from left to right) with blue, red, yellow, blue, green, and red in Product Sans font. The e is slightly angled.
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Figuer, Louis "Merveilles de la science" Furne Jouvet et Cie, Paris 1868
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Author/Creator: Stig Nygaard from Copenhagen, Denmark, Licence: CC BY 2.0
Escalators at Amagerbro Metro Station in Copenhagen, Denmark.
RepRap (1029947513).jpg
Author/Creator: Steve Jurvetson from Los Altos, USA, Licence: CC BY 2.0

<a href="http://www.reprap.org">RepRap</a> is a self-replicating 3D printer. It builds its own gears and components. (<a href="http://reprap.org/bin/view/Main/ShowCase">detail photos</a>)

The coiled polymer feed looks like an IV bag bobbing over the working tip. The dual print head is affectionately called Zaphod.

Scattered about are sci foo camp tents… and the ubiquitous “foo bar” beckons in the background, serving variable drafts.
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The logo of New York City Subway – rapid transit system in New York City
(c) MesserWoland, CC-BY-SA-3.0
Abstract stick-figures gesticulating around a table.
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Конвейерная линия Генри Форда (фото 1913 года).
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(c) Font Awesome by Dave Gandy - https://fortawesome.github.com/Font-Awesome, CC BY-SA 3.0
Icon extracted from [fortawesome.github.com/Font-Awesome/ Font-Awesome]
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Author/Creator: Berthold Werner, Licence: CC BY-SA 3.0
Rotary dial telephone, probably from Belgium, the cricuit diagram inside is in dutch and french
Woodcut scanned from original work by Agricola
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Artificial intelligence and machine learning are increasingly big news. Want to write an article on AI or computers getting smarter? This image could suit it.

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Author/Creator: TristanBomb, Licence: CC0
A dark green flag.
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Author/Creator: mikemacmarketing / photo on flickr, Licence: CC BY 2.0
Common Visualization of Artificial Neural Network with Chip
Prusa i3 3D Printer - Reprap - Completed.jpg
Author/Creator: John Abella, Licence: CC BY 2.0
it's a 3d printer
Overshot water wheel schematic.svg

The original uploader was DanMS at English Wikipedia.

(Original text: Daniel M. Short), Licence: CC BY-SA 2.5
Schematic diagram of an overshot water wheel.
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Author/Creator: Original: AllenMcC.Vector: KES47, Licence: CC BY-SA 3.0
Exact mathematical plot of a Lorentzian wormhole (Schwarzschild wormhole).
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Photograph of a Workman on the Framework of the Empire State Building. Many structural workers are above middle-age.
Prehistoric Tools - Les Combarelles - Les Eyzies de Tayac - MNP.jpg
Author/Creator: Sémhur, Licence: CC BY-SA 4.0
Prehistoric tools: scraper (up left); little blades (up); godet, a cup for painting (down). Found in Les Combarelles cave, Les Eyzies-de-Tayac, Dordogne, France. Upper Magdalenian, near 12,000 - 10,000 BP. These tools can be seen in the National Prehistory Museum in Les Eyzies-de-Tayac.
Science and Invention Nov 1928 Cover 2.jpg

The television image would be viewed through the cone. The image was 1.5 inches square (4 by 4 cm) and had 48 scan lines at 7.5 frames per second. (This was a low definition "48p" display.) The man is using a 125 hertz tuning fork to adjust the scanning wheel to 450 RPM. By looking through the tuning fork at the line pattern on the hub, he could see when the wheel was at the correct speed.

"How to build the S&I Television Receiver" starts on page 618.

Science and Invention, November 1928. Volume 16 Number 7.
Published by Experimenter Publishing. New York, NY.
Editor-in-Chief and Publisher: Hugo Gernsback
Cover Art by R. E. Pattiani.
The page numbers were on an annual basis, not per issue. This issue had pages 577 to 672. The magazine is 8.5 by 11.5 inches.
Author/Creator: unknown, Licence: CC BY-SA 1.0
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Author/Creator: WIPO, Licence: CC BY 3.0
Top 30 AI patent applicants by number of patent families. Source : WIPO Technology Trends 2019 - Artificial Intelligence
Author/Creator: Na9234, Licence: CC BY 3.0
Schematic of a fully solid-state type Lithium-air battery design
Photographing Sound in 1884. A rare photograph taken at Volta Laboratory by J. Harris Rogers, a friend of Bell and Tainter (Smithsonian photo 44312-E) i009.jpg
A description of the procedure used is found on page 67, of Tainter's unpublished autobiography. There, Tainter quotes Chichester Bell as follows: "A jet of bichromate of potash solution, vibrated by the voice, was directed against a glass plate immediately in front of a slit, on which light was concentrated by means of a lens. The jet was so arranged that the light on its way to the slit had to pass through the nappe and as the thickness of this was constantly changing, the illumination of the slit was also varied. By means of a lens ... an image of this slit was thrown upon a rotating gelatine-bromide plate, on which accordingly a record of the voice vibrations was obtained."
Sword bronze age (2nd version).jpg
Author/Creator: User:Calame, Licence: CC-BY-SA-3.0
Epée, bronze, âge du bronze, vers 800 av. JC ???, musée des antiquités nationales, Saint-Germain-en-Laye
Pont du Gard BLS.jpg
Author/Creator: Benh LIEU SONG (Flickr), Licence: CC BY-SA 3.0
Pont du Gard, in Vers-Pont-du-Gard, Gard department, South France. The Pont du Gard is the most famous part of the roman aqueduct which carried water from Uzès to Nîmes until roughly the 9th century when maintenance was abandoned. The monument is 49m high and now 275m long (it was 360m when intact) at its top. It's the highest roman aqueduct, but also one of the best preserved (with the aqueduct of Segovia). The Pont du Gard has been a UNESCO world heritage site since 1985.
Axe of iron from Swedish Iron Age, found at Gotland, Sweden.jpg
Axe of iron from Swedish Iron Age, found at Gotland, Sweden
A Commodore 64, 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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edited by User:Noodle snacks, Licence: CC BY-SA 3.0
MS Majesty of the Seas, one of Royal Caribbean International's Sovereign class cruise ships, anchored off Coco Cay, Royal Caribbean's name for Little Stirrup Cay, an island the company leases in the Bahamas.
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Wordmark of Apple’s macOS operating system
NASA Mars Rover.jpg
An artist's concept portrays a NASA Mars Exploration Rover on the surface of Mars. Rovers Opportunity and Spirit were launched a few weeks apart in 2003 and landed in January 2004 at two sites on Mars. Each rover was built with the mobility and toolkit to function as a robotic geologist.
Elon Musk Royal Society (crop2).jpg
Author/Creator: Debbie Rowe, Licence: CC BY-SA 4.0
Elon Musk is a technology entrepreneur, investor, and engineer.
Salisbury Cathedral, medieval clock.JPG
Author/Creator: Rwendland, Licence: CC BY-SA 3.0
Medieval clock in Salisbury Cathedral, operating a bell in the tower. Supposedly dating from about 1386, restored 1956.
(c) I, EncycloPetey, CC BY-SA 3.0
Pronunciation of the term in US English
Sandakan Sabah Shell-Station-Labuk Road-01.jpg
Photo by CEphoto, Uwe Aranas or alternatively © CEphoto, Uwe Aranas, CC BY-SA 3.0
Sandakan, Sabah, Malaysia: Shell Station Labuk Road
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Windows logo and wordmark - 2021
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YouTube logo (2017)
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(c) Michael Mainiero, CC BY-SA 3.0
A Socata TBM 900 photographed in flight. The photo was taken in 2015 during the EAA AirVenture Oshkosh event. It was shot mid-air from a Beechcraft A36 Bonanza.
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Author/Creator: Petar Milošević, Licence: CC BY-SA 4.0
Electric guide (electric wire) 3×2.5 mm (diameter)
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(c) WikipedianProlific, CC-BY-SA-3.0
An animated cut away diagram of a typical fuel injector. Fuel injectors are used to spray controlled amounts of fuel into an internal combustion engine. A solenoid is activated when fuel is intended to be delivered to the engine, causing the plunger to become pulled toward the solenoid by magnetic force. This uncovers the valve opening, allowing fuel to flow into the atomiser and out the spray tip, as it is under pressure. A valve spring attached to the plunger returns the plunger to its original position when the solenoid is switched off. The route of fuel is shown in orange; grey/blue indicates no fuel present.
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Square root of x formula. Symbol of mathematics.
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YouTube Premium logo
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Botanist George Washington Carver. The image has been restored, with dust spots removed, and with levels adjusted to better File:George_Washington_Carver,_ca._1902.jpg match his actual skin tone. It was quite common for photographers to overexpose images of darker-skinned people to bring out details, but this was often fixed for publication, and, if uncorrected, has problematic consequences for how history is imagined.
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The corporate logo of Amazon.
Ur chariot.jpg
detail of the Standard of Ur, ca. 2500 BC.
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Design for a Flying Machine
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Author/Creator: Quentin Stafford-Fraser, Licence: CC-BY-SA-3.0
A picture of the Trojan Room coffee pot, displayed in the XCoffee viewer.
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