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 road had become built up by the 19th century and is now a main shopping district in the Whitechapel area. Along the road, there is an establishedmarket,Whitechapel station and theRoyal London Hospital. It remains an important road and is marked withbus lanes, with limited parking. (Full article...)
Conduit Avenue and Conduit Boulevard were conceived in 1921 as part of the Conduit Highway, later theSunrise Highway, with the original highway opening in 1929. The highway was expanded in 1940 as part of the construction of theBelt Parkway. The Brooklyn section was originally supposed to hostInterstate 78 within its median, but this section was ultimately not built. (Full article...)
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Iowa Highway 1 (Iowa 1) is astate highway in theU.S. state ofIowa that extends fromKeosauqua toAnamosa. It travels nearly 120 miles (190 km), mainly through rich farmland and small communities. Iowa 1 provides an important link toIowa City and theUniversity of Iowa as it passes through campus. Portions of the route today date back to the late 1830s, whenMartin Van Buren waspresident, making Iowa 1 one of the oldest routes in the state, pre-dating the current primary highway system by nearly eighty years. The highway was seriously damaged by theCedar River in theIowa flood of 2008, which closed the highway for seven weeks. (Full article...)
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Black iPhone 4S
TheiPhone 4s is asmartphone that was developed and marketed byApple. It is thefifth generation of theiPhone, succeeding theiPhone 4 and preceding theiPhone 5. It was announced on October 4, 2011, at Apple's Cupertino campus, and was the final Apple product announced in the lifetime of former AppleCEO and co-founderSteve Jobs, whodied the following day.
Orders could be placed on October 7, 2011, and mainstream availability in retail stores began on October 14, 2011, in the United States, Australia, Canada, the United Kingdom, France, Germany, and Japan. Sales peaked over its predecessor with more than a million sales in the first twenty-four hours of order availability and more than four million sales in the first four days of retail availability. Further worldwide rollout, including 22 additional countries on October 28, came during the next several months. (Full article...)
Planned and directed byKenneth Bainbridge, the test was conducted in theJornada del Muerto desert about 35 miles (56 km) southeast ofSocorro, New Mexico, on what was the Alamogordo Bombing and Gunnery Range, but was renamed theWhite Sands Proving Ground just before the test. The only structures originally in the immediate vicinity were theMcDonald Ranch House and its ancillary buildings, which scientists used as a laboratory for testing bomb components. (Full article...)
The machine's successful operation was widely reported in the British press, which used the phrase "electronic brain" in describing it to their readers. That description provoked a reaction from the head of the University of Manchester's Department of Neurosurgery, the start of a long-running debate as to whether an electronic computer could ever be trulycreative. (Full article...)
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.
TheULPower UL260i, aflat-four engine produced byULPower Aero Engines of Belgium. Flat-four engines areflat engines withfour cylinders arranged horizontally in two banks of two cylinders on each side of a centralcrankcase; they can be used in cars, motorcycles, or aircraft. This type of engine tends to bewell-balanced and have efficient cooling, but is expensive to manufacture and considerably wider than other engines.
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.
TheLet L-410 Turbolet is a twin-engined short-range transport aircraft, manufactured by theCzech aircraft manufacturerLET, mostly used for passenger transport. The L-410 first flew in 1969, and with more than 1100 produced, is the most popular 19-seat plane in history.
Amicrometer is a device incorporating a calibratedscrew, widely used for precise measurement of components inmechanical engineering andmachining. Micrometers are usually, but not always, in the form ofcalipers (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.
"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 test firing of twin linear XRS-2200aerospike engines, originally built for theLockheed Martin X-33, a next-generation, commercially operatedreusable launch vehicle. The aerospike engine is a type ofrocket engine that maintains its efficiency across a wide range of altitudes through the use of an aerospike nozzle. A vehicle with an aerospike engine uses 25-30% less fuel at lowaltitudes, where most missions have the greatest need forthrust.
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.
A diagram of a typicalturbojet engine.Air is compressed as it enters theengine, and is mixed withfuel that burns in thecombustion section. Released through the exhaust, the resulting hot gasesprovide forwardthrust and turn theturbines that drive the fan blades of the compressor.
Image 7A 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 8The 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 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?
... 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?
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)