edgepedia

Technology and the built world

61,984 articles

Covalent Lithium

Covalent Lithium is an Australian lithium producer, a 50:50 joint venture between Wesfarmers and Chile's SQM that operates the Mount Holland mine and a Kwinana refinery producing battery-grade lithium hydroxide.

Covalent organic framework membranes

Covalent organic framework (COF) membranes are separation membranes whose selective layer is a crystalline porous polymer with tunable pores, applied to water treatment, gas separation, and ion separation.

Covanta

Covanta is the former name of Reworld, an American waste and energy company that burns municipal solid waste for electricity and recycles metals, rebranded in 2024.

Covanta Holding

Covanta Holding was an American energy company headquartered in Morristown, New Jersey, that converted municipal solid waste into electricity until it was renamed Reworld in April 2024.

Covariance intersection

Covariance intersection is a data fusion algorithm that combines estimates whose error correlations are unknown into a single consistent estimate, applied in object tracking and SLAM.

Covariance matrix adaptation evolution strategy (CMA-ES)

Covariance matrix adaptation evolution strategy (CMA-ES) is a stochastic evolutionary algorithm for black-box minimization of continuous, non-convex functions, introduced by Nikolaus Hansen and Andreas Ostermeier in 2001.

Covariant

Covariant is an American warehouse robotics AI company founded in 2017 by three early OpenAI research scientists, known for the 2024 Amazon deal that hired its founders.

Cove (architecture)

A cove, also known as coving or cavetto, is a concave molding fitted to the internal angle between two surfaces, typically where a wall meets a ceiling.

Cove Point LNG Terminal

The Cove Point LNG Terminal is a liquefied natural gas import and export terminal in Calvert County, Maryland, on the Chesapeake Bay, which began commercial export service in April 2018.

Coventry Cathedral

Coventry Cathedral, formally the Cathedral Church of Saint Michael, is the Anglican cathedral of Coventry, England, pairing a ruin bombed in 1940 with a modern cathedral consecrated in 1962.

Coventry Climax

Coventry Climax, founded in 1903 as Lee Stroyer and later Coventry Simplex, was a British engine maker in Coventry that powered four Formula One Constructors' Championships.

Coverage control

Coverage control is a problem in multi-robot coordination where mobile agents such as robots or sensors distribute over a region to optimize coverage, distinct from coverage path planning.

Coverage path planning

Coverage path planning is a robotics method for computing a path that covers every point of an area while avoiding obstacles, used in vacuum cleaning, painting, and demining.

Covered anaerobic lagoon

Covered anaerobic lagoon: an earthen waste-treatment basin with a flexible cover that traps biogas from anaerobic digestion of manure or wastewater. Also called covered lagoon digester (CLD); low-cost, unheated, suited to under-3%-solids liquid waste in warm climates.

Covered bridge

A covered bridge, also called a kissing bridge, is a timber-truss bridge with a roof and siding enclosing the roadway to protect the timbers from rot and weather.

Covered bridges in Canada

Covered bridges in Canada are timber truss bridges with roofs and siding; about 140 of an estimated 1,400 survive, mostly in Quebec and New Brunswick.

Covered bridges in Vermont

Covered bridges in Vermont, also listed as Vermont covered bridges, are roofed timber truss bridges built from 1820; about 100 survive, most still carrying road traffic.

Covered bridges of Ashtabula County, Ohio

The covered bridges of Ashtabula County, Ohio, are a cluster of 19 bridges, from an 18-foot span to the 613-foot Smolen–Gulf Bridge, the longest in the United States.

Covered bridges of Lancaster County, Pennsylvania

The covered bridges of Lancaster County, Pennsylvania, are roughly 28 surviving wooden, roofed truss bridges, mostly Burr arch trusses painted red; ten remain open to traffic under county ownership.

Covered bridges of Madison County, Iowa

The covered bridges of Madison County, Iowa, are six surviving wooden covered bridges, five originals built between 1868 and 1884 and one 2004 replica, in a county that once had nineteen.

Covered bridges of Parke County, Indiana

The covered bridges of Parke County, Indiana, are 31 surviving timber truss spans built from 1847 to 1920, nearly all on the National Register of Historic Places.

Covered bridges of the South, Appalachia and West

Covered bridges of the South, Appalachia and West surveys surviving timber-roofed bridges outside the East, including 17 in West Virginia, 6 in Tennessee, and 49 in Oregon.

Covered conductor

A covered conductor is an overhead power line conductor with an insulating outer layer, used to reduce faults and fire ignition when vegetation or animals contact the wire.

Covered way

A covered way, historically chemin couvert, is a sheltered path along the outer edge of a bastioned fortress ditch, used for firing, patrols, and assembling sorties.

Covert communication

Covert communication, also known as low probability of detection (LPD) communication, lets a transmitter and receiver communicate while a warden cannot detect that any transmission is taking place.

Covert listening device

A covert listening device, commonly called a bug or a wire, is a concealed microphone or transmitter used to overhear or record speech without the speakers' knowledge.

Cowboy Space Corporation

Cowboy Space Corporation, formerly Aetherflux, is an American space company founded by Robinhood co-founder Baiju Bhatt in 2024 to build space solar power and orbital data centers.

Cowell e Holdings

Cowell e Holdings (高伟电子) is a Cayman Islands-incorporated investment holding company listed in Hong Kong (stock code 1415) that manufactures camera modules and optical components for smartphones and tablets.

CoWoS

CoWoS (Chip on Wafer on Substrate) is TSMC's 2.5D advanced packaging technology, placing logic chips and high-bandwidth memory on an interposer, in production since 2012.

Cox Communications

Cox Communications, also known as Cox Cable, is an American broadband and cable television company, acquired by Charter Communications in a $34.5 billion deal in 2026.