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Corkscrew
A corkscrew is a tool for drawing a cork stopper out of a bottle, using a pointed metal spiral called the worm, levered or pulled free after screwing in.
Corn ethanol
Corn ethanol is fuel ethanol produced from corn kernel starch, supplying nearly all US fuel ethanol, consuming about 40% of the corn crop, and blended into most gasoline.
Corn Palace
The Mitchell Corn Palace is a multipurpose auditorium in Mitchell, South Dakota, whose walls are redecorated annually with murals made from colored corn and grains.
Corn silage
Corn silage, also called maize silage, is the whole corn plant chopped and preserved by anaerobic fermentation in a silo, used chiefly as feed for dairy and beef cattle.
Corn stover
Corn stover is the cobs, leaves, husks, and stalks left after a corn harvest, the most abundant US agricultural residue and a leading cellulosic ethanol feedstock.
Cornelis Drebbel
Cornelis Drebbel, also known as Cornelis Jacobszoon Drebbel, was a Dutch engineer and inventor who spent most of his career in England and built the first navigable submarine, tested on the Thames in 1620.
Cornelius J. Pings
Cornelius J. Pings, known as Neal Pings, was an American chemical engineer who served as provost of the University of Southern California and led the Association of American Universities.
Cornelius Vanderbilt II House
The Cornelius Vanderbilt II House, known as The Breakers, is a 70-room Gilded Age mansion in Newport, Rhode Island, built in 1893–1895 and designed by Richard Morris Hunt.
Cornell Grasp Dataset
The Cornell Grasp Dataset, also called the Cornell Grasping Dataset, is a benchmark of RGB-D images of household objects with labeled grasping rectangles for robotic grasp detection.
Corner detection
Corner detection is a computer vision method that finds image points where intensity changes sharply in multiple directions, used for tracking, matching, and camera calibration.
Corner reflector antenna
A corner reflector antenna is a directional antenna with a dipole in front of two angled conducting sheets, invented by John D. Kraus in 1940.
Cornerstone
A cornerstone, also called a foundation stone, is a ceremonial stone set prominently in a building's exterior, inscribed with dates and names and sometimes containing a time capsule.
Cornfield Bomber
The Cornfield Bomber is an F-106 fighter that landed unpiloted in a Montana field in 1970 after its pilot ejected, and was returned to service.
Cornice
A cornice is a projecting, molded feature crowning a wall to throw rainwater clear of its face; in classical architecture it is the entablature's uppermost division.
Corning Inc.
Corning Inc., also known as Corning Glass, is an American materials science company in Corning, New York, founded in 1851, that makes optical fiber and Gorilla Glass.
Corning Museum of Glass
The Corning Museum of Glass is a museum in Corning, New York, founded in 1951 by Corning Glass Works and holding more than 50,000 objects spanning 3,500 years of glassmaking.
Cornish–Windsor Covered Bridge
The Cornish–Windsor Covered Bridge is a 460-foot timber covered bridge built in 1866 over the Connecticut River between Cornish, New Hampshire, and Windsor, Vermont, the longest wooden bridge in the United States.
Corona loss
Corona loss is the power dissipated when air around a high-voltage conductor ionizes, an effect of voltage that matters mainly on lines of 345 kV and higher.
Corona ring
A corona ring is a circular conductive fitting, usually a metal toroid, attached to high-voltage equipment terminals to spread the electric field gradient and prevent corona discharge, reducing noise and radio interference.
Coronado Global Resources
Coronado Global Resources is a metallurgical coal producer and exporter with mining operations in Queensland, Australia and the Central Appalachian region of the United States, listed on the ASX.
Coronagraph
A coronagraph is an optical instrument attached to a telescope that blocks a bright star's light, invented by Bernard Lyot in 1930 to study the Sun's corona outside eclipses.
COROT
COROT (Convection, Rotation and planetary Transits) was a French-led space telescope for stellar seismology and finding transiting exoplanets, launched in 2006 and operated until 2013.
Coroutine
A coroutine is a routine that can suspend its execution, yield control to other routines, and later resume exactly where it left off, retaining its local state.
Corporación Eléctrica Nacional
Corporación Eléctrica Nacional (CORPOELEC, Corpoelec) is Venezuela's state-owned electricity company, created in 2007 to consolidate the country's public and private utilities into a single national operator.
Corporate Average Fuel Economy
Corporate Average Fuel Economy (CAFE) is a US regulatory program requiring automakers to meet average fuel economy targets for new cars and light trucks each model year.
Corporate Green Power Programme
The Corporate Green Power Programme (CGPP) is a Malaysian government scheme, launched in 2022, under which companies sign virtual power purchase agreements with solar producers to claim renewable energy use.
Corporate information factory
Corporate Information Factory (CIF), Bill Inmon's top-down data warehouse architecture: a normalized 3NF enterprise data warehouse fed by ETL from operational systems, supplying dependent data marts; contrasted with Kimball's bottom-up dimensional bus.
Corporate Renewable Energy Supply Scheme
The Corporate Renewable Energy Supply Scheme (CRESS) is a Malaysian framework, launched in September 2024, letting corporate consumers in Peninsular Malaysia buy renewable electricity directly from developers via the national grid.
CorPower Ocean
CorPower Ocean is a Swedish wave energy company in Stockholm, founded in 2009, whose C4 point-absorber converter has delivered grid power off Aguçadoura, Portugal, since 2023 and earned the first DNV wave energy certification in 2026.
Corpus Agrimensorum Romanorum
The Corpus Agrimensorum Romanorum is a compilation of Latin treatises on Roman land surveying, preserved in a sixth-century manuscript, with Frontinus and Hyginus Gromaticus among its authors.