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Technology and the built world

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Christopher Burcham

Christopher Luis Burcham is an American chemical engineer and Professor of the Practice at the University of Illinois Urbana-Champaign who specializes in pharmaceutical crystallization and process control.

Christopher C. Kraft

Christopher C. Kraft (1924–2019) was an American aerospace engineer who became NASA's first flight director, known as the "Father of Mission Control," directing all Mercury missions.

Christopher C. Kraft Jr. Mission Control Center

The Christopher C. Kraft Jr. Mission Control Center (MCC-H) is NASA's human spaceflight control facility at the Johnson Space Center in Houston, staffed around the clock since 1965.

Christopher Chen

Christopher S. Chen is a biomedical engineer, Distinguished Professor at Boston University and Wyss Institute core faculty, whose microfabrication work showed that cell shape governs whether cells grow or die.

Christopher Cockerell

Christopher Cockerell was an English electronics engineer who invented the hovercraft, patented in 1955; the SR.N1 crossed the English Channel in 1959, and he was knighted in 1969.

Christopher D. Manning

Christopher D. Manning is a Stanford professor of machine learning, linguistics, and computer science, a founder of statistical NLP known for CoreNLP, GloVe, Universal Dependencies, and influential textbooks.

Christopher Hinton, Baron Hinton of Bankside

Christopher Hinton, Baron Hinton of Bankside (1901–1983) was a British nuclear engineer who built Britain's first atomic plants, including Calder Hall, and chaired the CEGB.

Christopher J. Diorio

Christopher J. Diorio is an American computer scientist and electrical engineer at the University of Washington, known for inventing synapse transistors and founding the publicly traded RFID company Impinj.

Christopher John Fettig

Christopher John Fettig is an American forest entomologist who leads the Invasives and Threats Team at the USDA Forest Service in Davis, California, studying bark beetle management.

Christopher John Roy

Christopher John Roy is an American aerospace engineer known for verification, validation, and uncertainty quantification in computational fluid dynamics, and a professor at Virginia Tech since 2007.

Christopher Langton

Christopher G. Langton is a computer scientist who coined "artificial life", organized its first workshop at Los Alamos in 1987, and created the lambda parameter and Langton's ant.

Christopher Latham Sholes

Christopher Latham Sholes, also known as C. Latham Sholes, was an American newspaperman, politician, and inventor whose 1868 typewriter patent, refined by Remington, created the standard QWERTY keyboard.

Christopher M. Bishop

Christopher M. Bishop is a Microsoft Technical Fellow who led Microsoft Research Cambridge and wrote Pattern Recognition and Machine Learning, the first Bayesian text on pattern recognition.

Christopher Monroe

Christopher Monroe is an American experimental physicist who led the 1995 demonstration of the first quantum logic gate and co-founded the quantum computing company IonQ.

Christopher Poole

Christopher Poole, known online as moot, is an American internet entrepreneur who founded the imageboard 4chan in 2003 at 15 and ran it until January 2015.

Christopher R. Doerr

Christopher R. Doerr is an American integrated-photonics engineer who worked at Bell Laboratories and Acacia Communications, won the 2020 IEEE Photonics Award, and now leads Aloe Semiconductor.

Christopher R. McNeill

Christopher R. McNeill is an Australian materials scientist, Professor of Materials Science and Engineering at Monash University, who studies organic semiconductors, perovskite solar cells, and synchrotron X-ray techniques.

Christopher Ruf

Christopher S. Ruf is an American electrical engineer at the University of Michigan who pioneered GNSS reflectometry and led NASA's CYGNSS small-satellite hurricane mission, elected to the National Academy of Engineering in 2026.

Christopher Ryan (aviation executive)

Christopher "Christy" Ryan was an Irish aviation executive, formerly of Aer Lingus and Guinness Peat Aviation, who co-founded Ryanair and flew its first Waterford to Gatwick service in 1985.

Christopher Soghoian

Christopher Soghoian is a computer scientist and privacy researcher who exposed the government's StingRay surveillance and FBI impersonation of journalists, co-created Do Not Track, and advises Senator Ron Wyden.

Christopher Tyler Jones

Christopher Tyler Jones is a retired U.S. Air Force officer and aerospace engineer elected to the National Academy of Engineering in 2021 for defense logistics leadership.

Christopher Wren

Christopher Wren (1632–1723) was an English architect, astronomer, and mathematician who rebuilt St Paul's Cathedral and 51 City churches after the Great Fire of London.

Christopher Y. Li

Christopher Y. Li is a materials scientist and professor of materials science and engineering at Drexel University in Philadelphia, known for nanohybrid shish-kebab polymers and battery electrolytes.

Christos Faloutsos

Christos Faloutsos is a computer scientist at Carnegie Mellon University who works on data mining for graphs and streams, best known for the 1999 Internet power-law paper.

Christos Papadimitriou

Christos Papadimitriou (Χρήστος Παπαδημητρίου), born 1949, is a Greek theoretical computer scientist, the Donovan Family Professor at Columbia University since 2017, known for complexity theory and as a founder of algorithmic game theory.

Christos T. Maravelias

Christos T. Maravelias is a Greek-born chemical engineer who chairs Princeton's Department of Chemical and Biological Engineering, known for mixed-integer scheduling methods and biomass-to-fuels systems analysis.

Chroma

Chroma is an 8.9-billion-parameter open-weights text-to-image model derived from FLUX.1-schnell, released under Apache 2.0 in August 2025 by the pseudonymous developer Lodestone Rock with community-funded training.

Chroma ATE

Chroma ATE (致茂电子) is a Taiwanese manufacturer of precision test and measurement instrumentation and automated test systems, founded in 1984 and headquartered in Guishan, Taoyuan.

Chroma subsampling

Chroma subsampling is an image and video compression technique that stores color at a lower resolution than brightness, exploiting the eye's lower sensitivity to color detail.

Chromagen

Chromagen (כרומגן) is an Israeli manufacturer of solar water heaters, heat pumps, and electric and gas water heaters, founded in 1962 and owned by Italy's Ariston Group since 2022.