61,984 articles
Collaborative Combat Aircraft
Collaborative Combat Aircraft (CCA) is a United States Air Force program for AI-driven, semi-autonomous uncrewed jet fighters that fly alongside crewed fighters, part of the NGAD family of systems.
Collaborative filtering
Collaborative filtering (CF) is a widely used class of recommender algorithms that predicts a user's preferences from the ratings and behavior of many other users, rather than from item content.
Collaborative robot
A collaborative robot, or cobot, is a robot with power- and force-limiting safety functions that lets it operate near human workers without the fencing required for conventional industrial robots.
COLLADA
COLLADA (COLLAborative Design Activity) is an open, royalty-free XML schema for exchanging digital 3D assets between software applications, using .dae files and defined by the Khronos Group.
Collapsible Tubular Mast
A collapsible tubular mast, or CTM, is a space deployable boom of two bonded thin shells, coiled for launch and rolled out rigid in orbit; it flew on Viking.
Collect call
A collect call is a telephone call the recipient pays for, accepting the charges before connection; it is now used mostly for calls from prisons and jails.
Collective construction algorithms
Collective construction algorithms are distributed control methods by which multiple autonomous robots coordinate, usually without central direction, to assemble a structure no single robot could build.
Collective transport (robotics)
Collective transport, also called cooperative object transport or cooperative manipulation, is a robotics task in which multiple robots move a payload too large or heavy for one robot.
College of Air Traffic Control
The College of Air Traffic Control (CATC) was the UK's national air traffic controller training establishment, founded at Hurn near Bournemouth in 1949 and moved to Whiteley, Hampshire, in 2011.
College Square (Dublin)
College Square is a mixed-use development in Dublin 2, developed by Marlet Property Group. Completed in 2025, it is the tallest habitable building in the Republic of Ireland.
Collier Trophy
The Robert J. Collier Trophy is an annual American award, established in 1911 and presented by the National Aeronautic Association for the greatest achievement in aeronautics or astronautics.
Collings Foundation
The Collings Foundation is an American nonprofit educational foundation founded in 1979 and headquartered in Stow, Massachusetts, best known for the Wings of Freedom Tour of restored World War II aircraft.
Collins Aerospace
Collins Aerospace is an aerospace and defense systems segment of RTX Corporation, formed in 2018 from UTC Aerospace Systems and Rockwell Collins and making avionics, interiors, and spacesuits.
Collins-class submarine
The Collins-class submarine is a class of six diesel-electric submarines operated by the Royal Australian Navy, built to a Swedish design and first delivered in 1996.
Collision avoidance system
A collision avoidance system, also called a precrash system or forward collision warning, detects imminent crashes and warns the driver or applies automatic emergency braking.
Collision domain
A collision domain is a network segment where frames can collide if devices transmit simultaneously, as on shared Ethernet hubs; each switch port forms its own separate domain.
Collision mitigation braking system (trucks)
A collision mitigation braking system (CMBS) on a truck uses radar or cameras to warn drivers and brake automatically when a rear-end crash is imminent.
Colloidal nanocrystal solids
Colloidal nanocrystal solids are macroscopic assemblies of solution-synthesized semiconductor nanocrystals, typically 1 to 100 nm, engineered to conduct charge, absorb light, or emit light collectively, underpinning applications such as quantum-dot LED displays.
Colloidal quantum dot infrared photodetectors
A colloidal quantum dot infrared photodetector is a light sensor using a solution-made film of semiconductor nanocrystals, size-tuned to absorb infrared light silicon cannot detect.
Colloidal quantum dot photodetector
A colloidal quantum dot photodetector is a light sensor whose absorber is a solution-processed film of semiconductor nanocrystals, tunable from the visible into the infrared.
Colloidal quantum dot photodetectors
A colloidal quantum dot photodetector is a light sensor whose absorbing layer is a film of semiconductor nanocrystals, with the spectral response tuned by nanocrystal size.
Colloidal quantum dot photovoltaic film
A colloidal quantum dot photovoltaic film is a thin solar-cell layer of solution-made lead sulfide quantum dots that absorbs near-infrared light, with certified efficiencies over 18%.
Collotype
Collotype is a photomechanical printing process, patented in 1855, that reproduces photographs with continuous tone from a dichromated gelatin-coated glass plate, without a halftone screen.
Colman Dock
Colman Dock is the main ferry terminal of Washington State Ferries at Pier 52 on Seattle's central waterfront, serving the Seattle–Bainbridge Island and Seattle–Bremerton routes.
Colocation centre
A colocation center, or carrier hotel, is a third-party data center where customers rent space, power, cooling, and connectivity while owning and maintaining their own servers.
Colocation data center
A colocation data center, known as a colo, is a shared facility that rents space, power, and cooling to tenants who own and run their own servers.
Cologne Bonn Airport
Cologne Bonn Airport (Flughafen Köln/Bonn), also known as Konrad Adenauer Airport, is a 24-hour international airport in Cologne, Germany, and a major cargo hub hosting UPS, FedEx, and DHL.
Cologne Cathedral
Cologne Cathedral (Kölner Dom) is the Gothic Catholic cathedral of Cologne, Germany, built from 1248 to 1880, whose twin towers made it the tallest building in the world.
Colomban Cri-cri
The Colomban Cri-cri, also spelled Cricri and marketed as the Cricket, is a single-seat twin-engine amateur-built aerobatic aircraft designed by Michel Colomban, first flown in 1973.
Colombian national road network
The Colombian national road network, or Red Vial Nacional, is the system of national, departmental, and municipal roads carrying most passenger and freight movement in Colombia.