Technology and the built world

Dana Auburn Powers

Dana Auburn Powers is an American nuclear safety engineer who spent forty years at Sandia National Laboratories and was elected to the National Academy of Engineering in 2015.

Dana Incorporated is an American automotive supplier headquartered in Maumee, Ohio. Founded in 1904, it supplies axles, driveshafts, and electrified drivetrain systems to nearly every major vehicle manufacturer.

Dana Keoki Jackson

Dana Keoki Jackson is an American aerospace engineer who leads MITRE's National Security Sector and was elected to the National Academy of Engineering in 2020.

Dana Scott

Dana Stewart Scott, born 1932, is an American mathematical logician and computer scientist who won the 1976 Turing Award and created domain theory for programming languages.

Danabot

Danabot, also sold as DanaTools, is a Windows information-stealer and banking trojan released in 2018 that infected over 300,000 computers before its disruption in May 2025.

Dananhu No. 1 Coal Mine

Dananhu No. 1 Coal Mine (大南湖一号矿井) is an underground coal mine in Hami, Xinjiang, China, with an approved capacity of 10 million tonnes per year.

Dananhu No. 2 Surface Mine

Dananhu No. 2 Surface Mine, also called Dananhu West No. 2, is a large open-pit thermal coal mine in Hami, Xinjiang, China, begun in 2017.

Dananhu No. 7 Coal Mine

Dananhu No. 7 Coal Mine (大南湖七号煤矿) is an underground coal mine in Hami, Xinjiang, China, operated by Guotou (SDIC) Hami Energy with a 12-million-tonne annual capacity.

Dananhu power station

Dananhu power station (中煤哈密电厂) is a 1,320 MW coal-fired power station in Nanhu Town, Hami, Xinjiang, China, owned by China National Coal Group, with two 660 MW units in service since 2014.

Danaos

Danaos Corporation is an international owner of containerships and drybulk vessels, headquartered in Piraeus, Greece, whose founder Dimitris Coustas began operating as Danaos Shipping in 1972.

Danbooru

Danbooru is an English-language taggable image board focused on anime-style illustrations, the first booru-style site, whose tagging system was widely copied and adopted by anime image-generation models.

Dancing House

The Dancing House (Tančící dům), also called Fred and Ginger, is a 1996 Prague office building by Vlado Milunić and Frank O. Gehry with two leaning towers.

Dane Morgan

Dane Morgan is a computational materials scientist and Harvey D. Spangler Professor at the University of Wisconsin–Madison, known for fuel cell catalyst modeling and the 2024 computational discovery of fast oxygen conductors.

Danfoss

Danfoss, also known as the DANFOSS Group, is a Danish family- and foundation-owned engineering company founded by Mads Clausen in Nordborg in 1933, making heating, cooling, drives, and hydraulics.

Dangerous capability evaluations

A dangerous capability evaluation is a structured test of whether a frontier AI model can cause severe harm, such as aiding bioweapons or acting autonomously; since 2023, results trigger lab safety frameworks.

Dangerous goods

Dangerous goods, also called hazardous materials or hazmat, are substances that risk health, safety, property, or the environment in transport, regulated across nine UN hazard classes.

Dangjin Combined Cycle power station

The Dangjin Combined Cycle power station is a 2,406 MW LNG-fired power plant in Dangjin, South Chungcheong Province, South Korea, owned and operated by GS EPS.

Dangjin power station

Dangjin power station (당진 발전소) is a 6,040 MW coal-fired power station in Dangjin, South Korea, operated by Korea East-West Power and ranked among the world's largest coal plants.

Dangling else

The dangling else, also called the hanging else, is an ambiguity in programming-language grammars where an else could attach to either of two nested if statements.

Danie G. Krige

Danie G. Krige, born Daniel Gerhardus Krige (1919–2013), was a South African mining engineer and geostatistician whose 1951 gold ore valuation work gave its name to kriging.

Daniel A. Fletcher

Daniel A. (Dan) Fletcher is a professor of bioengineering at UC Berkeley, best known for CellScope, which turns a phone camera into a microscope for diagnosis.

Daniel A. Nolasco

Daniel A. Nolasco is a water and sanitation engineer who cofounded Nolasco & Associates and was elected to the US National Academy of Engineering in 2024.

Daniel A. Okun

Daniel A. Okun (1917–2007) was an American environmental engineer and Kenan Professor at the University of North Carolina, known for dual water systems and reclaimed water.

Daniel Ahmed

Daniel Ahmed is a Swiss-based robotics researcher in acoustic micro- and nanorobotics, an Associate Professor at the University of Bern who previously taught at ETH Zurich.

Daniel Alexander Okun

Daniel Alexander Okun (1917–2007) was an American environmental engineer and Kenan Professor at UNC Chapel Hill who pioneered water reclamation and dual water systems, working in 89 countries.

Daniel B. DeBra

Daniel B. DeBra (1930–2021) was an American control engineer and Stanford professor who pioneered drag-free satellite control systems and helped develop NASA's Gravity Probe B relativity mission.

Daniel B. Luten

Daniel B. Luten, or Daniel Benjamin Luten (1869–1946), was an American civil engineer and businessman who pioneered reinforced concrete arch bridge design through patented, licensed systems.

Daniel Brodie

Daniel Brodie is an American physician specializing in pulmonary and critical care medicine, a Johns Hopkins professor known for his 2011 NEJM review of ECMO for ARDS in adults.

Daniel Burnham

Daniel Burnham (1846–1912) was an American architect and urban planner who directed the 1893 World's Columbian Exposition, designed the Flatiron Building, and co-authored the 1909 Plan of Chicago.