Thewheel, 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 Sumerianchariot
The docks occupy the formersound betweenBarry Island and the mainland. The contractors built dams to connect each end of the island to the mainland, drained or pumped the water from the site and excavated it. They used the material to level the area around the docks and for the core ofbreakwaters to protect the entrance. The works included a basin with gates at each end, which served as a lock between the sea entrance and the docks, the dock walls and quays, coal loading equipment and railways to deliver coal from the mines to the docks. A second dock and second entrance lock were added in 1898. TheBarry Dock Offices were built in 1897–1900 by Arthur E. Bell, architect, of Cardiff and Barry, whose father, James Bell, was resident engineer of The Barry Railway Co. (Full article...)
Completed as a woodenaerial reconnaissance flying boat, the Swan first flew on 25 March 1924. It was on display at Woolston during a visit bythe Prince of Wales in June 1924. In 1926, it was registered asG-EBJY, having been converted for use as a passenger carrier, and was loaned toImperial Airways to supplement their commercial fleet. The Swan's accommodation was modified to allow for up 10 passengers. After being used for a passenger service between England and France, the Swan was returned to theAir Ministry in March 1927. It was scrapped the following year. (Full article...)
A cow is analogous to anA unit, i.e. a locomotive with a cab, and a calf to aB unit, i.e. a powered, cablessroad locomotive. That is, the cow and calf are each equipped with at least oneprime mover for propulsion. A cow–calf set is distinct from aslug-and-mother set in that a cow and a calf are each independently powered while aslug has no prime mover and instead is dependent on power from itsmother unit. Like the earlyEMD FT locomotives, cow–calf sets were typically built as mated pairs, with the cow and calf sharing a number. However this was not always the case, as over time many of the sets were broken up and couplers added to aid with versatility. (Full article...)
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The old coal mining sheave wheel, now featured in the centre ofRadstock, in front of theRadstock Museum TheSomerset Coalfield in northernSomerset, England is an area wherecoal was mined from the 15th century until 1973. It is part of a largercoalfield which stretched into southernGloucestershire. The Somerset coalfield stretched fromCromhall (Gloucestershire) in the north to theMendip Hills in the south, and fromBath in the east toNailsea in the west – a total area of about 240 square miles (622 km2). Most of thepits on the coalfield were concentrated in theCam Brook,Wellow Brook andNettlebridge Valleys and aroundRadstock andFarrington Gurney. The pits were grouped geographically, with clusters of pits close together working the same coal seams often under the same ownership. Many pits shared the trackways and tramways which connected them to theSomerset Coal Canal or railways for distribution.
The early pits wereadits where coal outcropped orbell pits where coal was close to the surface. These methods were abandoned when deep seams were mined. The deepest shaft on the coalfield was at the Strap mine at Nettlebridge which reached 1,838 feet (560 m). Flooding and coal dust explosions in some mines required improved ventilation and pumping engines. Several pits closed in the 19th century as the coal was worked out. Those that survived until 1947 became part of theNational Coal Board, but the expense of improving equipment and working conditions meant that these became uneconomical and the last pit closed in 1973. There is still evidence of the mine workings, with the remains of buildings, spoil heaps and tramways in the area. (Full article...)
John Herschel was an English mathematician, astronomer, chemist, inventor, and experimental photographer. He named sevenmoons of Saturn and fourmoons of Uranus, invented thecyanotype andactinometer, and wrote extensively on topics including meteorology, physical geography and the telescope.
A 'K6' modelred telephone box outside ofSt Paul's Cathedral inLondon. Thesekiosks for apublic telephone were designed bySir Giles Gilbert Scott and painted "currant red" for easy visibility. Although such telephone boxes ceased production when theKX series was introduced in 1985, they remain a common sight in Britain and some of its colonies, and are considered a British cultural icon.
"Big Pete" Ramagos,rigger at work onDouglas Dam,Tennessee, June 1942. A rigger is a person or company which specializes in the lifting and/or moving of extremely large and/or heavy objects. Riggers use equipment expressly designed for moving and lifting objects where ordinarymaterial handling equipment cannot go.
A diagram showing a side and underside view of an 18-wheelersemi-trailer truck with an enclosed cargo space. The underside view shows the arrangement of the wheels, and in blue, the axles, drive shaft, and differentials.
The numbered parts are:
'"`UNIQ--templatestyles-0000001F-QINU`"'
#tractor unit #semi-trailer (detachable) #engine compartment #cabin #sleeper (not present in all trucks) #air dam #fuel tanks #fifth-wheel coupling #enclosed cargo space #landing gear (legs for when semi-trailer is detached) #tandem axles
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 along-exposure photograph taken in darkness in the late evening; during the exposure, the photographer, John Masterson, walked around the dishes firing off over 130flashes using a hand-held flash gun.
Anescalator is a moving staircase for carrying people between floors of a building. The device consists of amotor-driven chain of individual, linked steps that move up or down on tracks, allowing the step treads to remain horizontal.
The rotor of a modernsteam turbine , which convertssteam (heat)energy intokinetic (mechanical) energy. The steam path is from the smallest blade, expanding through progressively larger blade elements. Steam turbines are used inpower plants to extractmechanical work frompressurized steam and benefit from their high efficiency and high power-to-weight ratio compared to other technologies, leading to their widespread deployment fromelectricity generation tomarine propulsion.
After 34 years at NASA, Jackson had earned the most senior engineering title available. Realizing that she could not earn further promotions without becoming a supervisor, she accepted a demotion to become a manager of the Federal Women's Program in the NASA Office of Equal Opportunity Programs, as well as of the Affirmative Action Program. In this role, she worked to influence both the hiring and promotion of women in NASA's science, engineering and mathematics careers. She was portrayed byJanelle Monáe as a lead character in the 2016 filmHidden Figures. This picture, taken in 1980, shows Jackson working at NASA Langley.
TheCommodore 64 is an8-bit home computer introduced in 1982 byCommodore 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.
Atelephone, orphone, is atelecommunications device that convertssound, typically thehuman voice, into electronic signals suitable fortransmission via cables or other transmission media over long distances through satellite.
TheBMW S1000RR is asport bike made byBMW Motorrad. It was introduced in 2008, initially for competition in the 2009Superbike World Championship, and has been in commercial production since then. Powered by a 999 cc (61.0 cu in)four-cylinder engine,redlined at 14,200 rpm, it delivers 133.6 kW (179.2 hp; 181.6 PS) to the rear wheel, making it the most powerful motorcycle in the class.Rubén Xaus andTroy Corser rode the bike for its inaugural Superbike World Championship in 2009, gaining highest finishes of fifth and seventh respectively, but it achieved greater success in the2010 FIM Superstock 1000 championship season, with riderAyrton Badovini winning every single race but one on the S1000RR.
Union Pacific 844 at Painted Rocks, Nevada, on a run fromElko toSparks, on September 15, 2009. Built in 1944, it was the last steam locomotive delivered toUnion Pacific and is the only steam locomotive never retired by a North AmericanClass I railroad.
The following are images from various technology-related articles on Wikipedia.
Image 1A rare 1884 photo showing the experimental recording of voice patterns by a photographic process at theAlexander Graham Bell Laboratory in Washington, D.C. Many of their experimental designs panned out in failure. (fromInvention)
Image 21The 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 Sumerianchariot. (fromHistory of technology)
... that astrophysicistAlan C. Cummings has led more than 1,700 weekly birdwatching walks atCaltech since 1986?
... that several science fiction critics praised "Rock Diver", the first short story by American writerHarry Harrison, for its compelling take on technology for passing through matter?
... that, after an attempt to sell theTokamak de Varennes to Iran failed, it became a display at the Canada Science and Technology Museum?
... thatCarmel Naughton, having been told that girls were "stupid and couldn't do maths", sponsored aSTEM scholarship fund?
... thatAileen Davies sang roles on the first two D'Oyly Carte Opera Company recordings using the new electrical-recording technology?
... thatByrnihat was ranked by an air technology company as the world's most polluted city in 2024?
AQR code, short forquick-response code, is a type of two-dimensionalmatrix barcode invented in 1994 byMasahiro Hara of theJapanese companyDenso Wave for labelling automobile parts. It features white and black squares within a square grid featuringfiducial markers on the corners, readable by imaging devices like cameras, and processed usingReed–Solomon error correction until the image can be appropriately interpreted. The required data is then extracted from patterns that are present in both the horizontal and the vertical components of the QR image. (Full article...)
WhatsApp Messenger, commonly known simply asWhatsApp, is an Americansocial media,instant messaging (IM), andVoice over IP (VoIP) service accessible via desktop andmobile app. Owned byMeta Platforms, the service allows users to sendtext messages,voice messages, and video messages, make voice and video calls, and shareimages,documents,user locations, and other content. The service requires acellular mobiletelephone number to register. WhatsApp was launched in May 2009. In January 2018, WhatsApp released a standalone business app called WhatsApp Business which can communicate with the standard WhatsApp client. As of May 2025, the service had 3 billion monthly active users, making it the most used messenger app. The name of the app is meant to sound like "what's up". (Full article...)
South Korea enacts alaw that requires human oversight of high-impactartificial intelligence (AI) systems, mandates disclosure and labeling of certain AI uses, and institutes fines of up to₩30 million (aroundUS$20,400) for violations.(Reuters)
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