edgepedia

Technology and the built world

61,984 articles

List of currently active United States military land vehicles

The currently active United States military land vehicles are the combat and tactical ground vehicles serving with the U.S. Army and Marine Corps, from the Abrams tank to the JLTV.

List of dams and reservoirs

The list of dams and reservoirs is a worldwide overview of notable dams, covering the ICOLD's 62,000-plus large dams, record holders like Three Gorges, and dam removals.

List of dams and reservoirs in Canada

The list of dams and reservoirs in Canada covers more than 16,000 dams, about 1,157 large dams, concentrated in Quebec, Ontario, and British Columbia, serving hydropower, flood control, and recreation.

List of dams and reservoirs in India

The list of dams and reservoirs in India covers the country's 6,628 large dams, third most in the world, built for irrigation, hydropower, drinking water, and flood control.

List of dams and reservoirs in Pakistan

The list of dams and reservoirs in Pakistan covers structures on the Indus Basin rivers, led by Mangla and Tarbela, the two reservoirs allowed under the Indus Waters Treaty.

List of dams and reservoirs in Pennsylvania

The list of dams and reservoirs in Pennsylvania covers the state's thousands of dams, including 22 federal navigation locks and dams on the Allegheny, Monongahela, and Ohio rivers.

List of dams and reservoirs in the United States

The list of dams and reservoirs in the United States covers more than 92,000 dams, including Hoover Dam and Grand Coulee Dam, their condition, and repair costs.

List of dams in the Columbia River watershed

The list of dams in the Columbia River watershed covers about 150 hydroelectric projects, including 19 dams on the main stems of the Columbia and Snake rivers.

List of data structures

The list of data structures covers the main families, including arrays, linked lists, balanced trees, hash tables, and B-trees, with operation costs and real-world benchmarks.

List of datasets for machine-learning research

The list of datasets for machine-learning research, also called a comparison of datasets in machine learning, covers the public collections researchers use to train, evaluate, and compare algorithms, from the UCI repository to Kaggle.

List of deadliest aircraft accidents and incidents

The list of deadliest aircraft accidents and incidents, also called the list of deadliest plane crashes, ranks aviation disasters by fatalities, led by the 1977 Tenerife collision with 583 deaths.

List of defense contractors

The list of defense contractors covers companies supplying weapons, equipment, or military services to governments, ranked in the SIPRI Top 100, led in 2024 by Lockheed Martin.

List of defunct automobile manufacturers of the United States

A list of the several hundred American companies that built cars, trucks, or commercial vehicles and later ceased production, from the 1890s to the 2020s.

List of Delta Air Lines accidents and incidents

The list of Delta Air Lines accidents and incidents covers the Atlanta-based carrier's crashes from 1947 through the mid-2020s, including Flight 191, which reshaped windshear regulation.

List of destroyer classes in service

A list of destroyer classes in service worldwide, including the US Arleigh Burke, UK Type 45, and Chinese Type 055, with the largest fleets held by the United States, China, and Japan.

List of dialling codes in Brazil

The list of dialling codes in Brazil, known as DDD codes, covers the 67 two-digit area codes used across all states and the Federal District under country code +55.

List of dialling codes in Germany

The list of dialling codes in Germany, known as Vorwahl, covers the area codes under country code +49: 5,200 local calling areas with two- to five-digit codes, administered by the Bundesnetzagentur.

List of dialling codes in the Republic of Ireland

The list of dialling codes in the Republic of Ireland covers its telephone area codes, such as 01 for Dublin and 021 for Cork, under country code 353.

List of dialling codes in the United Kingdom

The list of dialling codes in the United Kingdom covers area codes routing calls to geographic areas, mobile networks, and services, administered by Ofcom under the National Telephone Numbering Plan.

List of digital cameras with CCD sensors

The list of digital cameras with CCD sensors catalogs still cameras using charge-coupled device sensors, the dominant digital sensor type from the 1990s until CMOS replaced them around the mid-2000s.

List of DIN standards

The list of DIN standards covers the technical rules published by DIN, the German Institute for Standardization, founded in 1917, whose collection holds about 35,000 documents.

List of discontinued Volkswagen Group petrol engines

The list of discontinued Volkswagen Group petrol engines covers the spark-ignition engines VW no longer produces, from the Beetle's air-cooled flat-four to the VR6, whose production ended in 2024.

List of distortion pedals

A list of distortion pedals, the stompboxes that clip an electric guitar's signal for sustained sound, from the ProCo RAT and BOSS DS-1 to the Metal Zone.

List of DOS commands

The list of DOS commands covers MS-DOS commands entered through COMMAND.COM, including internal commands like DIR and CD and external programs like FORMAT and EDIT.

List of DRAM manufacturers

The list of DRAM manufacturers covers the companies making dynamic random-access memory, dominated by Samsung Electronics, SK hynix, and Micron Technology, with China's CXMT the fourth largest supplier.

List of drill and tap sizes

The list of drill and tap sizes pairs each thread, such as 1/4-20 UNC or M6, with the drill diameter bored before a tap cuts the thread.

List of Dyson products

The list of Dyson products covers the household appliances and personal-care devices made by British company Dyson, from the 1993 DC01 vacuum to hair dryers and headphones.

List of Easter eggs in Microsoft products

The list of Easter eggs in Microsoft products covers hidden features and games concealed in Windows and Office from the 1980s until Trustworthy Computing ended the practice in 2002.

List of electronic trading platforms

The list of electronic trading platforms covers exchange systems like CME Globex, FX and bond venues such as EBS and Tradeweb, and retail broker platforms.

List of electronics brands

A survey of notable electronics brands for TVs, smartphones, appliances, and audio, explaining how some names are owned by manufacturers, some licensed, and some held by contract makers.