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Daqing-Jinxi Oil Pipeline
The Daqing-Jinxi Oil Pipeline (大庆-锦西原油管道) is a crude oil pipeline in northeastern China running from the Daqing Oilfield to Jinxi in Liaoning, whose original Qingtie lines were China's first long-distance, double-line oil pipeline.
Dara Dam
The Dara Dam was a sixth-century Roman arch dam built to control the Cordes River, which bisected the frontier city of Dara and repeatedly flooded it.
Dara Huang
Dara Huang is an American architect and designer, born in Taiwan, who founded the London firm Design Haus Liberty in 2013 and the furniture line Dara Maison.
Dardanelles Gun
The Dardanelles Gun (Şahi), also called the Great Turkish Bombard, is a monumental Ottoman bronze siege cannon cast in 1464 for Sultan Mehmed II and now displayed in Hampshire, England.
DARE (Drop And REscale)
DARE (Drop And REscale) is a sparsification method for large language model fine-tuning deltas, introduced by Le Yu and colleagues in November 2023, that randomly drops most delta parameters and rescales the rest.
Darien Solar
Darien Solar, formally the Darien Solar Energy Center, is a 250 MW utility-scale solar power plant in southern Wisconsin, owned mainly by We Energies and online since March 2025.
Dario Amodei
Dario Amodei, born 1983, is an American AI researcher and entrepreneur who co-founded Anthropic in 2021 and leads it as CEO after serving as OpenAI's vice president of research.
Dario Floreano
Dario Floreano is a Swiss-based roboticist and full professor at EPFL, where he directs the Laboratory of Intelligent Systems and is known for evolutionary robotics and bio-inspired drones.
Darius-type tubular turbine
The Darius-type tubular turbine, also spelled Darrieus, is a low-head water turbine with a vertical-axis Darrieus runner in a ducted passage, proposed at Kyushu University for extra-low-head sites.
Dariush D. Divsalar
Dariush D. Divsalar is a communication theorist and JPL Fellow at NASA's Jet Propulsion Laboratory in Pasadena, elected to the National Academy of Engineering in 2024 for channel codes for deep-space communications.
Darjeeling Himalayan Railway
The Darjeeling Himalayan Railway, popularly known as the Toy Train, is a narrow-gauge mountain railway running from Siliguri to Darjeeling in West Bengal, India, opened in 1881.
Dark warehouse
A dark warehouse, also called a lights-out or autonomous warehouse, is a fully automated warehouse where machines handle storage, picking, and dispatch without human presence.
Dark web
The dark web, also called Onionland, is the portion of the internet reachable only through anonymizing networks like Tor, used by journalists and dissidents but also hosting criminal marketplaces.
Dark Web (disambiguation)
The dark web is the hidden part of the web hosted on anonymity networks like Tor, reachable only with special software, and known for both illicit markets and legitimate uses.
Darknet
A darknet is an overlay network on the public internet, reachable only with special software or authorization, hosting the anonymous dark web; the largest is Tor.
Darktrace
Darktrace is a British cybersecurity company in Cambridge, England, founded in 2013, whose AI platform detects and responds to network, email, cloud, and endpoint threats.
Darlie
Darlie, formerly Darkie Toothpaste (黑人牙膏), is a Hawley & Hazel toothpaste brand launched in Shanghai in the 1930s and renamed in 1989 after Colgate-Palmolive acquired half ownership.
Darlington Nuclear Generating Station
Darlington Nuclear Generating Station is a four-unit CANDU nuclear power station in Clarington, Ontario, near Toronto, owned by Ontario Power Generation and supplying over 20 percent of the province's electricity.
Darlington nuclear power plant
Darlington Nuclear Generating Station is a four-unit CANDU nuclear plant on Lake Ontario near Toronto, owned by Ontario Power Generation and Canada's second-largest nuclear station.
Darlington transistor
The Darlington transistor, also called a Darlington pair or Darlington circuit, combines two bipolar transistors so the pair acts as one with a current gain of 1000 or more.
Darlipali power station
Darlipali power station, also known as Darlipali Super Thermal Power Station, is a 1,600 MW coal-fired power station owned by NTPC Limited at Darlipali village in Sundargarh district, Odisha, India.
DARPA
DARPA, the Defense Advanced Research Projects Agency, is a U.S. Defense Department agency created in 1958 after Sputnik, best known for ARPANET and stealth technology.
DARPA Cyber Grand Challenge
The DARPA Cyber Grand Challenge (CGC) was a 2014–2016 DARPA competition in which autonomous computer systems analyzed software, found vulnerabilities, and patched them, ending in the first all-machine Capture the Flag tournament.
DARPA Falcon Project
DARPA FALCON, or the Falcon Project, was a joint DARPA and Air Force program begun in 2003 to develop prompt global strike and low-cost small launch vehicle technologies.
DARPA Grand Challenge
The DARPA Grand Challenge was a 2004 and 2005 prize competition run by DARPA in which fully autonomous vehicles raced across Mojave Desert courses, founding the self-driving car field.
DARPA Network Challenge
The DARPA Network Challenge, also known as the Red Balloon Challenge, was a 2009 DARPA competition offering $40,000 to locate ten red balloons, won by MIT.
DARPA OFFSET
DARPA OFFSET, or OFFensive Swarm-Enabled Tactics, was a DARPA program developing drone and ground-robot swarms of up to 250 vehicles for infantry in urban combat.
DARPA RACER Program
The DARPA RACER Program (Robotic Autonomy in Complex Environments with Resiliency) develops autonomy algorithms that let unmanned ground vehicles traverse unstructured off-road terrain at speeds on par with human drivers.
DARPA Robotics Challenge
The DARPA Robotics Challenge was a prize competition run by DARPA from 2012 to 2015 to develop human-supervised robots for disaster zones, inspired by the 2011 Fukushima accident.
DARPA Spectrum Collaboration Challenge
The DARPA Spectrum Collaboration Challenge was a three-year prize competition launched by DARPA in 2016, in which teams built AI radio networks that autonomously share congested spectrum.