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Dick K.P. Yue
Dick K.P. Yue is an American mechanical and ocean engineer at MIT, elected to the National Academy of Engineering in 2020 and originator of MIT OpenCourseWare.
Dick Rutan
Richard Glenn "Dick" Rutan was an American aviator and Air Force pilot who, with Jeana Yeager, flew the first nonstop, unrefueled flight around the world in 1986.
Dick Scobee
Dick Scobee, formally Francis Richard Scobee, was an American astronaut and Air Force test pilot who commanded the ill-fated final flight of the Space Shuttle Challenger in 1986.
Dictaphone
Dictaphone is a trademarked brand of dictation machines and a generic term for speech recorders, first marketed by Columbia Graphophone in 1907 and now owned by Microsoft through Nuance Communications.
Dictionary attack
A dictionary attack is a password-guessing method that hashes each candidate from a list of likely passwords, such as breached ones, and compares them against captured hashes.
Dictionary learning
Dictionary learning is a machine learning method that learns basis elements, called atoms, so each signal can be represented sparsely as a combination of a few atoms.
Dictionary.com
Dictionary.com is a free, advertising-supported online English dictionary launched in 1995 by Brian Kariger and Daniel Fierro, based on the Random House Unabridged Dictionary and serving over 40 million users monthly.
Didaktik
Didaktik was a series of 8-bit home computers made by a cooperative in Skalica, Czechoslovakia, beginning in 1986 with ZX Spectrum clones like the Gama and M.
Didcot power stations
The Didcot power stations are generating stations at Didcot, Oxfordshire, England: Didcot A, a 2,000 MW coal-fired station built from 1965 to 1974, and the gas-fired Didcot B.
DiDi
DiDi (Chinese: 滴滴), also known as Didi Chuxing, is a Chinese ride-hailing and shared mobility platform founded in 2012, operating in China and 14 other countries.
Didier Delsalle
Didier Delsalle, born in 1957, is a French experimental test pilot for Eurocopter who landed a helicopter on the summit of Mount Everest on 14 May 2005.
Dido Harding
Dido Harding, also known as Diana Mary Harding, Baroness Harding of Winscombe, is a British business executive and Conservative peer who was chief executive of TalkTalk from 2010 to 2017.
Didone
Didone, also called Modern or Neoclassical, is a classification of serif typefaces named after Didot and Bodoni, popular from the late 18th through the 19th centuries.
Die (manufacturing)
A die is a specialized tool, usually a block of hardened tool steel, that shapes material under pressure in processes such as stamping, extrusion, forging, and die casting.
Die attach
Die attach, also called die bonding, is the semiconductor packaging step that bonds a chip die to a lead frame or substrate using epoxy adhesive, solder, or sintered silver.
Die casting
Die casting is a manufacturing process that injects liquid metal under high pressure into a reusable steel die, best suited to high-volume parts in aluminum, zinc, and magnesium.
Die cutting (printing)
Die cutting in printing is a finishing process that uses a shaped blade, the die, to cut printed sheets into shapes a straight cut cannot produce.
Die-to-Die Interconnect
A die-to-die interconnect is the electrical interface and protocol stack carrying data between semiconductor dies in one package, typically on a silicon interposer or bridge.
Diebold Nixdorf
Diebold Nixdorf is an American financial and retail technology company in North Canton, Ohio, producing ATMs, point-of-sale systems, and self-checkout hardware for banks and retailers.
Diefenbunker
The Diefenbunker, also known as CFS Carp, is a four-storey underground Cold War bunker in Carp, Ontario, built 1959 to 1961 and now Canada's Cold War Museum.
Dieffenbacher
Dieffenbacher, formally DIEFFENBACHER GmbH Maschinen- und Anlagenbau, is a German family-owned company in Eppingen, Baden-Württemberg, founded in 1873 by Jakob Dieffenbacher, which builds press systems and complete plants for wood-based panels, forming, recycling, and energy.
Dielectric elastomer actuator
A dielectric elastomer actuator is a soft, electrically powered actuator with no discrete moving parts, in which voltage across a prestrained elastomer film produces strains of 10% to 50%.
Dielectric resonator
A dielectric resonator is a high-permittivity, low-loss ceramic that stores microwave energy as standing waves, used in mobile phone filters, oscillators, and antennas, with less loss than metal cavities.
Dielectric resonator antenna
The dielectric resonator antenna (DRA) is a low-profile microwave antenna in which a dielectric resonator on a ground plane radiates directly, avoiding the conduction losses of metal antennas, especially at millimeter-wave frequencies.
Dielectric waveguide
A dielectric waveguide confines electromagnetic waves in a core of glass, plastic, or sapphire by total internal reflection, spanning optical fibers, terahertz rods, and integrated photonic chips.
Diella (AI system)
Diella, also known as Diella AI, is an Albanian government AI system on the e-Albania portal, appointed "Minister of State for Artificial Intelligence" in September 2025 to fight corruption.
Diem (digital currency)
Diem, announced in 2019 as Libra, was a Facebook-backed stablecoin payment system that was renamed in 2020 and never launched, its assets sold to Silvergate Capital in 2022.
Dierk Raabe
Dierk Raabe is a German metallurgist, director of the Max Planck Institute for Sustainable Materials in Düsseldorf since 1999, known for crystal plasticity simulation and green steel.
Diesel cycle
The Diesel cycle is the idealized thermodynamic model for compression-ignition engines, proposed by Rudolf Diesel in 1892, adding heat at constant pressure rather than constant volume.
Diesel Electric railmotor (VR)
The Diesel Electric railmotor was a class of ten railmotors operated by the Victorian Railways in Australia, built at Newport Workshops between 1928 and 1931.