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Crimean Bridge (Крымский мост)
The Crimean Bridge, also called the Kerch Bridge (Крымский мост), is a 19 km road-and-rail crossing of the Kerch Strait between Russia and Kerch in Crimea, opened in 2018.
Criminal record
A criminal record, also called a rap sheet or criminal history, is an official compilation of a person's arrests, detentions, charges, and their outcomes, including acquittal or sentencing.
Crimping (joining)
Crimping is a solderless wire-termination method in which a crimping tool deforms a metal barrel around a stripped conductor, making a low-resistance electrical and mechanical connection.
Crișana-Banat Oil and Gas Field
The Crișana-Banat Oil and Gas Field is an onshore conventional oil and gas asset in western Romania, operated by OMV Petrom, covering the historical Crișana and Banat producing regions.
Cristal Union
Cristal Union is a French agricultural cooperative founded in 2000, the second largest sugar beet cooperative in France, producing sugar, alcohol, and bioethanol from beets grown by its 9,000 members.
Cristallo
Cristallo is a nearly colorless, highly ductile soda glass made on Murano, Venice, in the fifteenth century. Developed by Angelo Barovier around 1450, it was a major advancement in clarity.
Cristina Urdaneta Thomas
Cristina Urdaneta Thomas is a Venezuelan-born American chemical engineer who led computational materials modeling at 3M and was elected to the National Academy of Engineering in 2024.
Cristóbal Valenzuela
Cristóbal Valenzuela is a Chilean-born entrepreneur who co-founded Runway in Brooklyn in 2018 with two NYU classmates and leads the generative video company, valued at $5.3 billion in 2026, as CEO.
Cristur Gas Field
The Cristur Gas Field is an operating onshore natural gas field in Romania's Transylvanian Basin near Cristuru Secuiesc, producing biogenic methane from Miocene sandstones and operated by the state-owned Romgaz.
Critical design review
A critical design review (CDR) is a formal systems engineering checkpoint at which a product's detailed design is judged complete and mature enough for fabrication and testing.
Critical gap (traffic engineering)
The critical gap, also called critical acceptance gap, is the minimum time gap an average driver needs to enter or cross a conflicting traffic stream at unsignalized intersections.
Critical power ratio
The critical power ratio (CPR) is a boiling water reactor safety parameter, defined as the ratio of a fuel bundle's critical power to its actual power.
Critical raw materials
Critical raw materials, also called critical minerals, are minerals and metals judged essential to a national economy and security with supply chains vulnerable to disruption.
Critical Raw Materials Act
The Critical Raw Materials Act (CRMA) is a 2024 European Union regulation that secures the supply of critical raw materials, setting 2030 benchmarks for EU extraction, processing, and recycling.
Critical reconstruction
Critical reconstruction (Kritische Rekonstruktion) is an urban-design doctrine developed for West Berlin's International Building Exhibition of 1984/87 under Josef Paul Kleihues, later guiding central Berlin's rebuilding after reunification.
Critical regionalism
Critical regionalism is an architectural theory coined in 1981 by Alexander Tzonis and Liane Lefaivre in "The Grid and the Pathway", gaining recognition through Kenneth Frampton's 1983 essay.
Critical state soil mechanics
Critical state soil mechanics, developed by Roscoe, Schofield, and Wroth at Cambridge in 1958, describes soil strength and deformation through stress state and void ratio.
Criticality accident
A criticality accident, also called a criticality excursion, is an accidental release of energy from an unintentional fission chain reaction in fissile material, causing brief, intense radiation.
Criticality analysis
Criticality analysis is a reliability engineering method that ranks a system's failure modes by severity and probability of occurrence, typically as an extension of FMEA called FMECA.
Criticism of Google
Criticism of Google: documented objections to Google LLC over privacy, search and ad-tech antitrust (2024 Sherman Act ruling, 2025 remedies, Epic verdict, EU fines totaling 8.25 billion euros), consumer protection, tax structures, and labor, distinguishing it from other subjects named Google.
Criticism of the Space Shuttle program
Criticism of the Space Shuttle program is the technical, economic, and organizational critique of NASA's reusable launch system, which flew 135 missions from 1981 until retirement in 2011.
Criticism of X (social network)
Criticism of Twitter, known as X since its 2023 rebrand under Elon Musk, covers topics such as content moderation, hate speech, misinformation handling, and a 2025 European Union fine.
CRIU
CRIU (Checkpoint/Restore In Userspace) is an open-source Linux utility that saves a running process tree or container to image files and restores it later from the exact point where it was frozen.
Croatia Airlines
Croatia Airlines, registered in Zagreb in 1989 as Zagreb Airlines (Zagal) and renamed in 1990, is Croatia's majority state-owned national airline based at Zagreb, a Star Alliance member since 2004.
Crocoddyl
Crocoddyl, short for Contact RObot COntrol by Differential DYnamic Library, is an open-source optimal control library that computes trajectories and feedback gains for robot contact sequences.
Crocodile clip
A crocodile clip, more often called an alligator clip in North America, is a spring-loaded metal clip with serrated jaws for making temporary electrical connections.
Croda International
Croda International is a British specialty chemicals company, founded in 1925 by Mr Crowe and Mr Dawe in Yorkshire, that makes ingredients for consumer care, life sciences, and industrial products.
Crofton Pumping Station
Crofton Pumping Station, also known as Crofton Beam Engines, is a canal pumping station in Wiltshire, England, built in 1809 for the Kennet and Avon Canal.
Cromwell tank
The Cromwell tank, formally Cruiser Mk VIII, was a fast British World War II cruiser tank powered by the Rolls-Royce Meteor, entering combat in Normandy in June 1944.
Cron
Cron is a time-based job scheduler on Unix-like operating systems, a background daemon that reads crontab tables and runs commands on a schedule, first appearing at Bell Labs in the 1970s.