61,984 articles
Galata Bridge
Galata Bridge (Galata Köprüsü) is a 490 m double-deck bascule bridge in Istanbul carrying road, tram, and pedestrian traffic across the Golden Horn between Eminönü and Karaköy since 1992.
Galata Tower
Galata Tower, known in Turkish as Galata Kulesi, is a medieval stone tower in Istanbul built by the Genoese in 1348 as a fortified entrance to their colony.
Galaxy AI
Galaxy AI is Samsung Electronics' umbrella brand for a bundle of AI features on Galaxy phones, tablets, watches, and earbuds, launched with the Galaxy S24 series in January 2024.
Galaxy Buds
Galaxy Buds are Samsung's line of true wireless earbuds, launched in 2019 as the audio companion to Galaxy smartphones and spanning budget to premium tiers.
Galaxy Evolution Explorer
The Galaxy Evolution Explorer (GALEX) was a NASA space telescope that observed the universe in ultraviolet light from 2003 to 2013 to measure the history of star formation in galaxies.
Galaxy Gas
Galaxy Gas is an American brand of flavored nitrous oxide canisters and tanks sold for whipping cream, founded in 2021 and widely misused as a recreational inhalant.
Galaxy Leader
Galaxy Leader is a Bahamas-flagged vehicle carrier hijacked by Yemen's Houthi forces on 19 November 2023, the opening attack of their campaign against Red Sea shipping.
Galaxy System (robotic bronchoscopy)
The Galaxy System is a robotic-assisted bronchoscopy platform developed by Noah Medical in California, FDA-cleared in 2023 for diagnosing peripheral lung lesions via electromagnetic navigation and integrated tomosynthesis.
Gale–Shapley algorithm
The Gale–Shapley algorithm, also called deferred acceptance, is a procedure introduced by David Gale and Lloyd Shapley in 1962 that always yields a stable matching between two groups.
Galen B. Schubauer
Galen B. Schubauer (1904–1992) was an American fluid mechanician who spent his career at the National Bureau of Standards and gave the first conclusive experimental verification of Tollmien–Schlichting wave theory.
Galfenol
Galfenol is an iron–gallium magnetostrictive alloy, discovered in 1999, that changes shape in response to a magnetic field while staying ductile and machinable like ordinary iron.
Galil DMC motion controller
The Galil DMC motion controller is a family of digital motion controllers from Galil Motion Control, founded in 1983, that commands servo and stepper motors.
Galilee Coal Mine
The Galilee Coal Mine is a proposed thermal coal mine in Queensland's Galilee Basin, developed by Clive Palmer's Waratah Coal and refused approval in 2023.
Galileo (satellite constellation)
Galileo is the European Union's global navigation satellite system, a civil-controlled constellation in medium Earth orbit providing positioning, navigation, and timing signals worldwide, begun in 2016.
Galileo (satellite navigation)
Galileo is the European Union's global navigation satellite system, operational since December 2016, run under civilian control and built so Europe would not depend on GPS or GLONASS.
Galileo (spacecraft)
Galileo was a NASA spacecraft launched in 1989 aboard the shuttle Atlantis that became the first artificial satellite of Jupiter in 1995 and was deliberately flown into the planet in 2003.
Galileo atmospheric probe
The Galileo atmospheric probe was a NASA entry craft dropped into Jupiter's atmosphere on December 7, 1995, making the first direct measurements of any outer planet's atmosphere.
Galileo High Accuracy Service
The Galileo High Accuracy Service (HAS) is a free correction service of the EU's Galileo satellite navigation system, delivering decimetre-level positioning accuracy worldwide since its Initial Service began in 2023.
Galileo project
Galileo, also called the Galileo Mission, was a NASA orbiter and atmospheric probe mission to Jupiter, launched in 1989, that found evidence of an ocean on Europa.
Galileo PRS
Galileo PRS is the robust, encrypted navigation service of the EU's Galileo satellite system, restricted to government-authorized users such as police and emergency services, available since 2016.
Galinstan
Galinstan is a eutectic liquid-metal alloy of gallium, indium, and tin, liquid near room temperature and used as a low-toxicity replacement for mercury in thermometers.
Gallatin Fossil Plant
Gallatin Fossil Plant, also called the Gallatin Steam Plant, is a coal-fired power station on the Cumberland River near Gallatin, Tennessee, operated by the Tennessee Valley Authority.
Galleon
A galleon is a large three-masted, square-rigged sailing ship of the 1500s to 1700s, developed from the caravel and carrack and used by European powers, especially Spain, as merchant ship and warship.
Galleria Vittorio Emanuele II
The Galleria Vittorio Emanuele II, also known as the Galleria Victor Emmanuel, is a monumental shopping arcade in Milan linking Piazza del Duomo with Piazza della Scala under a glass dome.
Gallery car
Gallery car is a bilevel commuter railroad passenger car, first constructed by the Budd Company for the Chicago, Burlington and Quincy Railroad in 1950, and is still used on Chicago commuter services.
Galley
A galley is a long, low warship propelled primarily by oars, with sails lowered before battle, dominating Mediterranean naval warfare from Pharaonic Egypt to the early 1600s.
Gallium arsenide
Gallium arsenide (GaAs) is a III-V compound semiconductor of gallium and arsenic with a direct bandgap, used since the 1960s in microwave electronics, laser diodes, and high-efficiency space solar cells.
Gallium arsenide solar cell
A gallium arsenide solar cell is a photovoltaic device that converts sunlight more efficiently than silicon and tolerates radiation better, making it the standard power source for spacecraft.
Gallium nitride FET
A gallium nitride FET is a field-effect transistor built on the wide-bandgap semiconductor GaN, usually a HEMT that switches faster and handles higher power than silicon devices.
Gallium nitride on silicon
Gallium nitride on silicon (GaN-on-Si) is a semiconductor technology that grows gallium nitride on low-cost silicon wafers, combining GaN's high-voltage performance with silicon's manufacturing scale for 5G amplifiers and chargers.