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Wikipedia:Vital articles/Level/5/Technology

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Vital articles is a list of subjects for which Wikipedia should have corresponding high-quality articles. It serves as a centralized watchlist to track the status of Wikipedia's most essential articles. This is one of the sub-lists of the fifty thousand article Vital articles/Level 5 and is currently under construction.

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Quota 3,200 articles.

Total 3,241 articles.

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FA 20
GA 77
A 2
B 690
C 1,560
LIST 9
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DGA 77
Start 833
Stub 52

General

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This section contains 89 articles.

  1. Technology (Level 1)
  2. Applied science
  3. Appropriate technology
  4. Emerging technologies
  5. Innovation
  6. Invention
  7. Maintenance
  8. Miniaturization
  9. Problem solving
  10. Research and development
  11. Scientific instrument
  12. Simulation
  13. Technological convergence
  14. Technological determinism
  15. Technology adoption life cycle
  16. Technology and society
  17. Technology assessment
  18. Technology life cycle
  19. Technology transfer

Creativity, Vocational education, Intellectual property and Patent are listed in the Society and Social Sciences section; Industrial design in the Arts section.
For history of technology, see History#History of science and technology section.

Engineering

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This section contains 70 articles.

Basics

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This section contains 19 articles.

  1. Engineering (Level 2)
  2. Nanotechnology (Level 4)
    1. Molecular machine
  3. Nuclear technology (Level 4)
  4. Technical drawing (Level 4)
  5. Engineering ethics
  6. Risk management
  7. Engineering management
  8. Engineering design process
    1. Requirements analysis
    2. Problem statement
    3. Feasibility study
    4. Engineering optimization
  9. Computer-aided design
  10. Engineering economics
  11. Engineering statistics
  12. Engineering research
  13. Reverse engineering
  14. Engineering studies

Disciplines

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This section contains 51 articles.

  1. Agricultural engineering
  2. Applied mechanics
  3. Biological engineering
    1. Biochemical engineering
    2. Biomedical engineering (Level 4)
    3. Pharmaceutical engineering
  4. Ceramic engineering
  5. Chemical engineering (Level 4)
    1. Chemical reaction engineering
    2. Nuclear engineering
    3. Molecular engineering
    4. Petroleum engineering
    5. Process engineering
    6. Polymer engineering
  6. Civil engineering (Level 3)
    1. Architectural engineering (Level 4)
    2. Construction engineering
    3. Earthquake engineering
    4. Environmental engineering
    5. Geotechnical engineering
      1. Directional drilling
    6. Hydraulic engineering
    7. Mining engineering
    8. Structural engineering
    9. Transportation engineering
    10. Highway engineering
  7. Electrical engineering (Level 4)
    1. Computer engineering
  8. Energy engineering
    1. Power engineering
    2. Telecommunications engineering
    3. Electronic engineering
    4. Control engineering
    5. Microwave engineering
    6. Radio-frequency engineering
  9. Engineering physics
  10. Industrial engineering (Level 4)
    1. Computer-aided engineering
    2. Manufacturing engineering
  11. Mechanical engineering (Level 3)
    1. Aerospace engineering (Level 4)
    2. Mechatronics
    3. Railway engineering
    4. Marine engineering
    5. Automotive engineering
  12. Military engineering (Level 4)
  13. Sanitary engineering
  14. Security engineering
  15. Software engineering (Level 4)
  16. Structural analysis
  17. Systems engineering

Agriculture

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This section contains 233 articles. See Agriculture in the Society category; also see History of Agriculture and related articles under History, or the Everyday life category for basic agricultural products

Basics

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This section contains 11 articles.

  1. Arable land
  2. Crop
    1. Cash crop
    2. Nonfood crop
    3. Fiber crop
  3. Agricultural machinery
  4. Agricultural cycle
    1. Growing season
    2. Season extension
  5. Agricultural land
  6. Pasture

Academic disciplines

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This section contains 11 articles.

  1. Agricultural science (Level 4)
  2. Agricultural chemistry
  3. Agricultural economics
  4. Agricultural philosophy
  5. Agricultural soil science
  6. Agroecology
  7. Agricultural policy
  8. Agricultural geography
  9. Agricultural education
    1. Agricultural extension
  10. Agrometeorology

Forms

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This section contains 49 articles.

Agriculture

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This section contains 38 articles.

  1. Beekeeping (Level 4)
  2. Cuniculture
  3. Dairy (Level 4)
    1. Dairy farming
  4. Dryland farming
  5. Desert farming
  6. Heliciculture
  7. Rainfed agriculture
  8. Extensive farming
  9. Gardening (Level 4)
  10. Intensive farming (Level 4)
  11. Mechanised agriculture
  12. Orchard (Level 4)
  13. Organic farming (Level 4)
  14. Genetically modified crops
  15. Sustainable agriculture (Level 4)
  16. Permaculture
  17. Subsistence agriculture (Level 4)
  18. Urban agriculture (Level 4)
  19. Pastoralism
  20. Plantation
  21. Shifting cultivation
  22. Regenerative agriculture
  23. Animal-free agriculture
  24. Intensive animal farming
  25. Free range
  26. Hydroponics
  27. Sericulture
  28. Viticulture
  29. Fungiculture
  30. Olericulture
  31. Slash-and-burn
  32. Vertical farming
  33. Polyculture
    1. Multiple cropping
    2. Intercropping
  34. Sharecropping
  35. Tenant farmer

Aquaculture

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This section contains 11 articles.

  1. Aquaculture (Level 4)
  2. Mariculture
  3. Algaculture
  4. Fish farming
    1. Aquaculture of catfish
    2. Aquaculture of salmonids
    3. Aquaculture of tilapia
  5. Freshwater prawn farming
  6. Integrated multi-trophic aquaculture
  7. Marine shrimp farming
  8. Seaweed farming

Pest and disease control

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This section contains 26 articles.

  1. Aerial application
  2. Acaricide
  3. Agrochemical
  4. Agent Orange
  5. Aldrin
  6. Chemosterilant
  7. DDT
  8. Defoliant
  9. Fumigation
  10. Fungicide
  11. Herbicide
  12. Insecticide
  13. Lindane
  14. Malathion
  15. Methoxychlor
  16. Pest (organism)
  17. Pest control
    1. Biological pest control
    2. Integrated pest management
  18. Pesticide (Level 4)
  19. Rodenticide
  20. Scarecrow
  21. Smother crop
  22. Soil steam sterilization
  23. Tetraethyl pyrophosphate
  24. Toxaphene

Buildings and infrastructure

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This section contains 29 articles.

  1. Apiary
  2. Barn (Level 4)
  3. Farm (Level 4)
  4. Garden (Level 3)
    1. Arboretum
    2. Botanical garden
    3. Chinese garden
    4. English landscape garden
    5. French formal garden
    6. Japanese garden
    7. Persian gardens
    8. Spanish garden
  5. Fishery
  6. Fish hatchery
  7. Granary (Level 4)
  8. Grain elevator
  9. Greenhouse
  10. Orangery
  11. Paddy field
  12. Pavilion
  13. Plant nursery
  14. Raised field
    1. Chinampa
    2. Waru Waru
  15. Seedbed
  16. Silo (Level 4)
  17. Stable (Level 4)
  18. Terrace (earthworks)
  19. Ranch

Animal husbandry

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This section contains 21 articles.

  1. Animal husbandry (Level 3)
  2. Animal slaughter
  3. Breed (Level 4)
  4. Culling
  5. Domestication (Level 3)
  6. Goat farming
  7. Animal feed
    1. Fodder
      1. Hay (Level 4)
      2. Straw
    2. Forage
    3. Fish meal
  8. Livestock (Level 4)
  9. Pig farming
  10. Poultry farming
  11. Selective breeding (Level 4)
    1. Animal breeding
    2. Purebred
  12. Sheep farming
  13. Slaughterhouse
  14. Antibiotic use in livestock

Agronomy

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This section contains 29 articles.

Basics

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This section contains 4 articles.

  1. Agronomy (Level 4)
  2. Plant breeding (Level 4)
    1. Cultivar (Level 4)
  3. Crop yield

Agronomical techniques

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This section contains 15 articles.

  1. Nutrient management
  2. Fertilizer (Level 3)
    1. Compost
    2. Vermicompost
    3. Green manure
    4. Guano
    5. Manure
  3. Harvest (Level 4)
    1. Threshing
    2. Winnowing
  4. Irrigation (Level 4)
  5. Tillage (Level 4)
  6. Silage
  7. Sowing
  8. Postharvest

Soil and soil management

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This section contains 10 articles. See "Pedology" in Earth Science

  1. Beneficial organism
  2. Cover crop
  3. Crop rotation
  4. Mulch
    1. Plastic mulch
  5. Nitrogen fixation
  6. Norfolk four-course system
  7. No-till farming
  8. Three-field system
  9. Soil salinity control

Horticulture

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This section contains 22 articles.

  1. Horticulture (Level 4)
  2. Espalier
  3. Floriculture
  4. Grafting
  5. Layering
  6. Plant propagation
  7. Pollarding
  8. Pollination management
  9. Pruning
  10. Smudge pot
  11. Topiary
  12. Transplanting
  13. Basal shoot
  14. Pomology
  15. Companion planting
  16. Genetically modified tree
  17. Indigenous horticulture
  18. Urban horticulture
  19. Hardiness (plants)
    1. Hardiness zone
  20. Drought tolerance
  21. Tropical horticulture

Hunting and fishing

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This section contains 18 articles.

  1. Fishing line
    1. Dropline
    2. Longline fishing
    3. Trotline
  2. Fishing net
    1. Gillnetting
    2. Seine fishing
  3. Fishing rod
    1. Fish hook
    2. Fishing lure
    3. Fishing reel
    4. Fishing float
  4. Fish trap
    1. Crab trap
    2. Fishing weir
    3. Lobster trap
  5. Trapping
    1. Bait (luring substance)

Trees and forestry

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This section contains 6 articles.

  1. Agroforestry
  2. Arboriculture
  3. Logging
  4. Silviculture
  5. Coppicing
  6. Controlled burn

Agriculture, labor and economy

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This section contains 8 articles.

  1. Community-supported agriculture
    1. Teikei
  2. Corporate farming
  3. Family farm
  4. Agricultural cooperative
  5. Working animal
  6. Agribusiness
  7. Agricultural marketing

Agriculture and ecology

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This section contains 3 articles.

  1. Environmental impact of agriculture
  2. Agricultural expansion
  3. Agricultural pollution

Agricultural machinery and tools

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See "Agricultural tools" and "Farm and Garden Machinery" in Technology : Machinery and tools

Biotechnology

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This section contains 45 articles. See also : Selective Breeding in Agriculture; Fermentation in Biology

  1. Biotechnology (Level 3)
  2. Cell culture
    1. Plant tissue culture
  3. Genetic engineering (Level 3)
  4. Recombinant DNA
    1. Genetically modified organism (Level 4)
    2. CRISPR
    3. Molecular cloning
  5. Cloning (Level 4)
    1. Somatic cell nuclear transfer
  6. Gel electrophoresis (Level 4)
  7. Polymerase chain reaction (Level 4)
  8. Western blot
  9. Cyborg
  10. Whole genome sequencing
  11. Tissue engineering
  12. Biochip
  13. De-extinction
  14. Genome editing
  15. Nuclear transfer
  16. Pharming (genetics)
  17. Biomimetics
  18. DNA microarray
  19. Micropropagation
  20. Biological hazard
  21. Bioterrorism
    1. Agro-terrorism
  22. Pharmacogenomics
  23. Biopharmaceutical
  24. Genetic testing
  25. Synthetic biopolymer
  26. Biomaterial
  27. Agricultural biotechnology
  28. Environmental biotechnology
  29. Bioreactor
  30. Gene therapy
  31. Stem-cell therapy
  32. Antisense therapy
  33. Organ printing
  34. Protein engineering
  35. Activated sludge
  36. Anaerobic digestion
  37. Bioleaching
  38. Biomining
  39. Somatic fusion


Communication, media, and computing technology

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This section contains 739 articles. For abstract topics in computer science, see Mathematics: Theoretical computer science (Level 5)

Computing and information technology basics

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This section contains 12 articles.

  1. Computing (Level 4)
  2. Information technology (Level 4)
  3. Abacus (Level 4)
  4. Calculator (Level 4)
  5. Counting board
  6. Data (computer science) (Level 4)
    1. Data communication (Level 4)
    2. Metadata
  7. File sharing
  8. Human–computer interaction
  9. Media (communication)
  10. Open source

Computer science

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This section contains 16 articles.

  1. Computer science (Level 3)
  2. Artificial intelligence (Level 3)
  3. Computer architecture (Level 4)
  4. Computer simulation (Level 4)
  5. Parallel computing (Level 4)
    1. General-purpose computing on graphics processing units
  6. Augmented reality
  7. Mixed reality
  8. Virtual reality
  9. Concurrent computing
    1. Monitor (synchronization)
  10. Floating-point arithmetic
  11. Real-time computing
  12. Computer graphics (computer science)
    1. Color management
    2. Transform, clipping, and lighting

Computer architecture concepts

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This section contains 27 articles.

  1. Cache (computing)
  2. Cache coherence
  3. Distributed computing
    1. Computer cluster
    2. Grid computing
  4. Cloud computing
  5. Optical computing
  6. DNA computing
  7. Quantum computing
  8. Von Neumann architecture
  9. 8-bit computing
  10. 16-bit computing
  11. 32-bit computing
  12. 64-bit computing
  13. Endianness
  14. Multithreading (computer architecture)
  15. Multiprocessing
  16. Instruction set architecture
    1. x86
      1. x86-64
    2. ARM architecture family
    3. IBM POWER architecture
    4. MIPS architecture
    5. Very long instruction word
  17. System time
    1. Epoch (computing)
    2. Unix time

Computer security

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This section contains 40 articles.

  1. Computer security (Level 4)
  2. Firewall (computing)
  3. Transport Layer Security
  4. Security bug
    1. Zero-day vulnerability
  5. Denial-of-service attack
    1. Botnet
  6. Copy protection
    1. Digital rights management
  7. Malware (Level 4)
    1. Computer virus
    2. Computer worm
    3. Trojan horse (computing)
    4. Ransomware
    5. Spyware
  8. Cryptography (Level 3)
    1. Blockchain
    2. Block cipher
    3. Brute-force attack
    4. Caesar cipher
    5. Cipher
    6. Cryptanalysis
    7. Digital signature
    8. Encryption (Level 4)
    9. Enigma machine
    10. Key (cryptography)
    11. One-time pad
    12. Public-key cryptography
      1. Diffie–Hellman key exchange
      2. RSA (cryptosystem)
    13. Symmetric-key algorithm
  9. Authentication (Level 4)
    1. Password
    2. Security token
    3. Multi-factor authentication
    4. User (computing)
  10. Security through obscurity
    1. Obfuscation (software)
    2. Steganography
  11. Zombie (computing)

Computer hardware

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This section contains 83 articles.

  1. Computer hardware (Level 4)
  2. Computer (Level 2)
    1. IBM PC–compatible
    2. Mainframe computer
    3. Microcomputer
    4. Mobile device (Level 4)
      1. Smartphone (Level 4)
      2. Tablet computer
    5. Personal computer (Level 4)
      1. Desktop computer
      2. Gaming computer
      3. Home computer
      4. Laptop
    6. Supercomputer (Level 4)
    7. Wearable computer
    8. Workstation
  3. Booting
    1. BIOS
      1. UEFI
    2. Reboot
  4. Processor (computing)
    1. Central processing unit (Level 4)
      1. Microprocessor
        1. Multi-core processor
    2. Coprocessor
  5. Motherboard
  6. Processor register
  7. Floating-point unit
  8. Graphics processing unit
  9. Arithmetic logic unit
  10. Digital signal processor
  11. Bus (computing)
    1. SATA
    2. Parallel ATA
    3. Industry Standard Architecture
    4. Peripheral Component Interconnect
    5. PCI Express
    6. Front-side bus
  12. Expansion card
    1. Sound card
    2. Graphics card
    3. PC Card
    4. ExpressCard
  13. Modem
  14. Device driver
  15. Intel High Definition Audio
  16. Moore's law
  17. Clock rate
  18. Embedded system
  19. Real-time clock
  20. Computer case
  21. Computer cooling
  22. Analog computer
  23. Stored-program computer
  24. Hardware acceleration
  25. Plug and play
  26. Input device
  27. Output device

User interface

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This section contains 25 articles.

  1. User interface (Level 4)
  2. Graphical user interface
    1. Window (computing)
    2. X Window System
  3. Command-line interface
  4. Cut, copy, and paste
  5. Peripheral
    1. Computer keyboard
    2. Computer monitor (Level 4)
    3. Pointing device
      1. Computer mouse (Level 4)
      2. Touchpad
      3. Touchscreen (Level 4)
    4. Virtual reality headset
  6. Computer port (hardware)
    1. IEEE 1394
    2. USB
      1. USB-C
    3. D-subminiature
    4. Digital Visual Interface
    5. DisplayPort
    6. HDMI
    7. VGA connector
    8. Thunderbolt (interface)
  7. Webcam

Computer software

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This section contains 38 articles.

  1. Software (Level 4)
  2. Application software
  3. Chatbot
  4. Database (Level 4)
    1. Data mining
    2. Big data
  5. Emulator
  6. Media player software
  7. Mobile app
  8. Open-source software (Level 4)
  9. Spreadsheet (Level 4)
  10. System software
  11. Web application
    1. Webmail
    2. Web content management system
  12. Web browser (Level 4)
  13. Word processor (Level 4)
  14. Desktop publishing
  15. Plug-in (computing)
  16. POSIX
  17. GNU Project
  18. Input method

Operating systems

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This section contains 16 articles.

  1. Firmware
  2. Operating system (Level 4)
    1. Real-time operating system
  3. Virtual machine
  4. Kernel (operating system)
  5. Job (computing)
  6. Task (computing)
  7. Thrashing (computer science)
  8. Thread (computing)
  9. Preemption (computing)
  10. Process (computing)
  11. Computer multitasking
  12. Scheduling (computing)
  13. System call
  14. Time-sharing
  15. Working set

Data storage and memory

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This section contains 77 articles.

For units of information (bit, byte, megabyte, etc.), see Physical sciences/Basics and measurement

  1. Computer file (Level 4)
  2. Backup
  3. Barcode (Level 4)
    1. QR code
  4. File system (Level 4)
    1. HFS Plus
    2. File Allocation Table
    3. NTFS
    4. ext4
    5. ISO 9660
    6. Universal Disk Format
  5. Directory (computing)
  6. Filename extension
  7. Data storage (Level 4)
    1. Computer data storage
    2. Cloud storage
  8. RAID
  9. Disk partitioning
  10. Computer memory
  11. Binary file
  12. Text file
    1. Formatted text
    2. Plain text

File format

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This section contains 26 articles.

  1. File format
  2. Archive file
    1. ZIP (file format)
    2. RAR (file format)
    3. 7z
  3. Document file format
    1. Office Open XML
    2. OpenDocument
    3. PDF
  4. Image file format
    1. GIF
    2. JPEG
    3. TIFF
    4. PNG
    5. SVG
  5. Audio coding format
    1. WAV
    2. MP3
    3. Advanced Audio Coding
  6. Video coding format
    1. Advanced Video Coding
    2. DivX
  7. Container format
    1. MPEG-4
    2. WebM
    3. Ogg

Volatile memory

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This section contains 5 articles.

  1. Volatile memory
  2. Random-access memory (Level 4)
    1. Dynamic random-access memory
    2. Static random-access memory
  3. Virtual memory

Non-volatile memory

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This section contains 23 articles.

  1. Non-volatile memory
  2. Read-only memory (Level 4)
  3. Magnetic storage
    1. Floppy disk
    2. Hard disk drive (Level 4)
    3. Magnetic tape (Level 4)
      1. Magnetic-tape data storage
      2. VHS
      3. Videotape
      4. Betamax
  4. Flash memory
    1. USB flash drive
    2. Solid-state drive
    3. Memory card (Level 4)
      1. CompactFlash
      2. SD card
      3. MultiMediaCard
      4. Universal Flash Storage
  5. Optical disc (Level 4)
    1. Compact disc
    2. DVD
    3. LaserDisc
    4. Blu-ray

Networks

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This section contains 73 articles.

  1. Computer network (Level 4)
    1. Intranet
  2. Email (Level 4)
    1. Spamming
    2. Simple Mail Transfer Protocol
    3. Internet Message Access Protocol
  3. Ethernet (Level 4)
  4. Router (computing) (Level 4)
  5. Routing
  6. Wi-Fi (Level 4)
  7. Bluetooth
  8. Cellular network
    1. GSM
  9. Server (computing)
    1. Proxy server
    2. Web server
  10. Client–server model
  11. Network topology
  12. Network switch
  13. Network packet
  14. Network interface controller
  15. Node (networking)
  16. Internet of things
  17. Wireless mesh network
  18. Content delivery network
  19. Private network
  20. Subnet
  21. Tunneling protocol
  22. Reverse proxy

Internet

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This section contains 44 articles. For Internet culture, see Society and social sciences/Culture#Internet medium

  1. Internet (Level 3)
  2. ARPANET
  3. CSS
  4. Communication protocol
  5. Common Gateway Interface
  6. Domain name
  7. File Transfer Protocol
  8. Hashtag
  9. HTML (Level 4)
    1. HTML5
    2. Hyperlink
  10. HTTP (Level 4)
    1. HTTPS
  11. Instant messaging
    1. Online chat
    2. IRC
  12. Internet protocol suite (Level 4)
    1. Internet Protocol
    2. IP address
    3. IPv4
    4. IPv6
    5. Transmission Control Protocol
  13. Internet service provider
  14. Peer-to-peer file sharing
    1. BitTorrent
    2. Napster
  15. Social media (Level 4)
    1. Blog
    2. Bulletin board system
    3. Chat room
    4. Internet forum
    5. Online dating
    6. Social networking service
    7. Usenet
  16. Web 2.0
  17. Search engine (Level 4)
  18. Tor (network)
  19. Website (Level 4)
    1. Home page
    2. Web page
    3. Wiki
  20. World Wide Web (Level 4)
    1. Dark web
    2. Deep web

Specific websites and other computing services

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This section contains 50 articles.

Cloud server

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This section contains 2 articles.

  1. Amazon Web Services
  2. Google Cloud Platform

Multimedia

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This section contains 5 articles.

  1. Flickr
  2. Netflix
  3. Pornhub
  4. Steam (service)
  5. YouTube (Level 4)

E-commerce

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This section contains 3 articles.

  1. Alipay
  2. Craigslist
  3. Taobao

Portals/Platform sites

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This section contains 3 articles.

  1. MSN
  2. Naver
  3. Yahoo

Utility

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This section contains 6 articles.

  1. GitHub
  2. Google Maps
  3. Internet Archive
  4. IMDb
  5. Rotten Tomatoes
  6. Wikipedia (Level 4)

Science

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This section contains 1 article.

  1. Berkeley Open Infrastructure for Network Computing

Search engines

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This section contains 2 articles.

  1. Google Search
  2. Microsoft Bing

Social network and blogging

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This section contains 28 articles.

  1. 2channel
  2. 4chan
  3. Blogger (service)
  4. DeviantArt
  5. Discord
  6. Facebook (Level 4)
  7. ICQ
  8. Instagram
  9. Line (software)
  10. LinkedIn
  11. Myspace
  12. Pinterest
  13. Reddit
  14. Slack (software)
  15. Skype
  16. Snapchat
  17. Telegram (software)
  18. Tencent QQ
  19. TikTok
  20. Tinder (app)
  21. Tumblr
  22. Twitch (service)
  23. Twitter
  24. Weibo
  25. Vine (service)
  26. VK (service)
  27. WeChat
  28. WhatsApp

Software development

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This section contains 122 articles.

Software development: General

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This section contains 63 articles.

  1. Software development
  2. Software prototyping
  3. Reusability
  4. Software portability
  5. Transparency (human–computer interaction)
  6. Library (computing)
  7. Formal specification
  8. Formal verification
  9. Software design
  10. Abstraction (computer science)
  11. Variable (computer science)
  12. Function (computer programming)
  13. Pointer (computer programming)
  14. Recursion (computer science)
  15. Iteration
  16. Computer programming (Level 4)
  17. Flowchart
  18. Source code
  19. Bytecode
  20. Object code
  21. Executable
  22. Parameter (computer programming)
  23. Collation
  24. Universal Product Code
  25. Character encoding (Level 4)
    1. ASCII
    2. Mojibake
    3. Unicode
      1. UTF-8
  26. Error correction code
  27. Compiler (Level 4)
  28. Interpreter (computing)
  29. Control flow
  30. Macro (computer science)
  31. Regular expression
  32. Calling convention
  33. Programming language (Level 4)
  34. Programming paradigm (Level 4)
    1. Functional programming (Level 4)
    2. Structured programming (Level 4)
    3. Modular programming
    4. Object-oriented programming (Level 4)
    5. Declarative programming
    6. Imperative programming
    7. Logic programming
  35. API
    1. Carbon (API)
    2. Cocoa (API)
    3. Open Database Connectivity
    4. Windows API
      1. DirectX
        1. Direct3D
    5. OpenGL
    6. Vulkan
  36. Software testing
  37. Software bug
  38. Debugging
  39. Application checkpointing
  40. Exception handling
  41. Version control
  42. Patch (computing)
  43. Software maintenance
  44. Software documentation

Programming languages

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This section contains 41 articles.

  1. Syntax (programming languages)
  2. Metasyntax
  3. Backus–Naur form
  4. Type conversion
  5. Data type
  6. Delimiter
  7. Operator overloading
  8. Language binding
  9. Low-level programming language
    1. Machine code
    2. Assembly language (Level 4)
  10. High-level programming language
    1. C (programming language) (Level 4)
    2. C++
    3. C Sharp (programming language)
    4. Objective-C
    5. Delphi (software)
    6. Haskell
    7. Java (programming language) (Level 4)
    8. Kotlin (programming language)
    9. Lisp (programming language)
    10. Lua (programming language)
    11. Scala (programming language)
    12. Swift (programming language)
    13. Visual Basic (.NET)
  11. Shading language
  12. R (programming language)

Data modeling languages

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This section contains 1 article.

  1. SQL

Markup languages

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This section contains 1 article.

  1. XML

Scripting languages

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This section contains 6 articles.

  1. Python (programming language)
  2. Ruby (programming language)
  3. PHP
  4. Perl
  5. JavaScript (Level 4)
  6. Shell script

"Historical" languages

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This section contains 6 articles.

  1. ALGOL
  2. BASIC
  3. Pascal (programming language)
  4. Fortran
  5. Ada (programming language)
  6. COBOL

Artificial intelligence concepts

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This section contains 18 articles.

  1. AI alignment
  2. Artificial general intelligence
  3. Neural network (machine learning)
  4. Computer chess
  5. Computer Go
  6. Computer vision
  7. Existential risk from artificial intelligence
  8. Generative artificial intelligence
  9. Large language model
  10. Machine learning
    1. Deep learning
  11. Natural language processing
    1. Speech recognition
    2. Machine translation
  12. Philosophy of artificial intelligence
  13. Technological singularity
  14. Turing test
  15. Weak artificial intelligence

Other media and communication technology

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This section contains 109 articles. See also Arts: Literature; Society: Mass media
Physical and analog media are also included here

  1. Broadcasting (Level 3)
  2. Bulletin board
  3. Audiobook
  4. Communications satellite (Level 4)
  5. Display device
    1. Cathode-ray tube (Level 4)
    2. Flat-panel display (Level 4)
      1. Liquid-crystal display (Level 4)
      2. microLED
      3. OLED
      4. Plasma display
    3. Projection screen
  6. Document
  7. Ebook
    1. E-reader
  8. Image (Level 4)
  9. Image scanner (Level 4)
  10. Mail (Level 3)
    1. Courier (Level 4)
    2. Postage stamp (Level 4)
    3. Pigeon post
    4. Autopen
  11. Manuscript
    1. Codex
    2. Scroll
  12. Portable media player
  13. Printing (Level 3)
    1. Book (Level 2)
      1. ISBN
    2. Photocopier (Level 4)
    3. Printer (computing) (Level 4)
    4. Printing press (Level 4)
      1. Font
      2. Movable type
      3. Print on demand
  14. Radio (Level 3)
    1. Amateur radio (Level 4)
    2. Antenna tuner
    3. Radio broadcasting (Level 4)
      1. FM broadcasting
      2. AM broadcasting
      3. Shortwave radio
    4. Radio receiver
      1. Crystal radio
      2. Superheterodyne receiver
      3. Transistor radio
    5. Software-defined radio
    6. Transmitter
    7. Walkie-talkie
  15. Smartwatch
  16. Sound recording and reproduction (Level 4)
    1. Cassette tape
    2. Loudspeaker (Level 4)
    3. Phonograph
      1. Phonograph record
    4. Headphones
    5. Microphone (Level 4)
  17. Speech synthesis (Level 4)
  18. Telecommunications (Level 3)
    1. Demodulation
    2. Fax
    3. Modulation (Level 4)
      1. Amplitude modulation
      2. Frequency-hopping spread spectrum
      3. Frequency modulation
      4. Frequency-shift keying
      5. Phase modulation
    4. Pager
    5. Submarine communications cable
    6. Telegraphy (Level 4)
      1. Electrical telegraph
      2. Flag semaphore
    7. Telephony
      1. Code-division multiple access
      2. Telephone (Level 3)
      3. Landline
      4. Mobile phone (Level 3)
      5. Satellite phone
      6. SIM card
    8. Text messaging (Level 4)
    9. Videotelephony
  19. Television (Level 3)
    1. Analog television
      1. NTSC
      2. PAL
      3. SECAM
    2. Color television
    3. Digital television
      1. ATSC standards
      2. Digital multimedia broadcasting
      3. Digital Terrestrial Multimedia Broadcast
      4. DVB
      5. ISDB
    4. High-definition television
    5. Ultra-high-definition television
    6. Mechanical television
    7. Cable television (Level 4)
    8. Satellite television (Level 4)
    9. Streaming media
    10. Streaming television
    11. Terrestrial television
  20. Typewriter (Level 4)
    1. QWERTY
  21. Video (Level 4)
    1. Digital video
      1. Digital video recorder
    2. Video camera (Level 4)
    3. Videocassette recorder
  22. Wireless

Specific hardware

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This section contains 34 articles.

See also video game hardware section under games for early Home Computers

  1. Amazon Kindle
  2. Amiga
  3. Arduino
  4. Chromebook
  5. Commodore 64
  6. Deep Blue (chess computer)
  7. iPad
  8. iPhone (Level 4)
  9. iPod
  10. Mac (computer) (Level 4)
    1. iMac
  11. PC-98
  12. Raspberry Pi
  13. Samsung Galaxy
  14. Walkman
  15. ZX Spectrum

Early computers

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This section contains 18 articles.

  1. Analytical engine
  2. Antikythera mechanism
  3. Atanasoff–Berry computer
  4. Atlas (computer)
  5. Colossus computer
  6. Difference engine
  7. EDSAC
  8. EDVAC
  9. ENIAC (Level 4)
  10. IBM Personal Computer
  11. IBM 7030 Stretch
  12. Manchester computers
  13. Harvard Mark I
  14. TRS-80
  15. UNIVAC I
  16. Whirlwind I
  17. Z3 (computer)
  18. Apple II

Specific software

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This section contains 58 articles.

Artificial Intelligence

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This section contains 2 articles.

  1. AlphaGo
  2. ChatGPT

Browsers

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This section contains 5 articles.

  1. Firefox
  2. Google Chrome
  3. Internet Explorer
  4. Microsoft Edge
  5. Safari (web browser)

Communication

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This section contains 2 articles.

  1. Gmail
  2. Microsoft Outlook

Development

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This section contains 2 articles.

  1. "Hello, World!" program
  2. Visual Studio

Multimedia

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This section contains 9 articles.

  1. Adobe Creative Suite
    1. Adobe Flash
    2. Adobe Photoshop
  2. GarageBand
  3. GIMP
  4. Inkscape
  5. iTunes
  6. Microsoft Paint
  7. VLC media player

Office and data management

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This section contains 11 articles.

  1. Adobe Acrobat
  2. Emacs
  3. LibreOffice
  4. Microsoft Office
    1. Microsoft Excel
    2. Microsoft PowerPoint
    3. Microsoft Word
  5. MySQL
  6. TeX
  7. WinRAR
  8. Vim (text editor)

Operating Systems

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This section contains 19 articles.

  1. Android (operating system) (Level 4)
  2. iOS
  3. DOS
    1. MS-DOS (Level 4)
  4. Mac operating systems
    1. Classic Mac OS
    2. macOS
  5. Microsoft Windows (Level 4)
    1. Windows 3.1
    2. Windows 9x
    3. Windows NT
      1. Windows XP
      2. Windows 7
      3. Windows 10
  6. Symbian
  7. Unix (Level 4)
  8. Unix-like
    1. Linux (Level 4)
      1. Debian

Science and Engineering

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This section contains 2 articles.

  1. AutoCAD
  2. MATLAB

System

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This section contains 3 articles.

  1. GDK
  2. KDE
  3. Wine (software)

Virtualization

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This section contains 3 articles.

  1. Java virtual machine
  2. VirtualBox
  3. VMware

Electronics

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This section contains 116 articles. For topics in electromagnetism, see Physics:Electromagnetism

Electronics: General

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This section contains 9 articles.

  1. Electronics (Level 3)
    1. Analogue electronics
    2. Digital electronics
  2. Circuit design (Level 4)
    1. Electronic design automation
    2. Printed circuit board (Level 4)
    3. SPICE
  3. Electronic circuit
    1. Multimeter

Components

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This section contains 36 articles.

  1. Electronic component
  2. Amplifier (Level 4)
    1. Operational amplifier
    2. Vacuum tube (Level 4)
  3. Capacitor (Level 4)
    1. Ceramic capacitor
    2. Electrolytic capacitor
    3. Film capacitor
    4. Leyden jar
    5. Supercapacitor
    6. Variable capacitor
  4. Diode (Level 4)
    1. Light-emitting diode (Level 4)
  5. Electrical connector (Level 4)
  6. Inductor (Level 4)
  7. Power supply (Level 4)
    1. Current source
    2. Voltage source
  8. Resistor (Level 4)
    1. Potentiometer
  9. Switch (Level 4)
    1. Knife switch
    2. Relay (Level 4)
    3. Rotary switch
  10. Transducer
    1. Actuator
      1. Solenoid
    2. Sensor (Level 4)
      1. Avalanche photodiode
      2. Photodiode
      3. Photomultiplier tube
      4. Phototube
      5. Stretch sensor
      6. Thermistor
      7. Thermocouple
  11. Transformer (Level 4)

Consumer electronics

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This section contains 3 articles.

  1. Consumer electronics (Level 4)
  2. AC adapter
  3. Remote control (Level 4)

Digital logic

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This section contains 16 articles.

  1. Asynchronous circuit
  2. Logic gate
    1. AND gate
    2. Digital buffer
    3. Inverter (logic gate)
    4. NAND gate
    5. NOR gate
    6. OR gate
    7. XOR gate
    8. XNOR gate
  3. Adder (electronics)
    1. Binary multiplier
    2. Subtractor
  4. Flip-flop (electronics)
  5. Synchronous circuit
    1. Clock domain crossing

Functional circuits

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This section contains 14 articles.

  1. Bridge circuit
    1. Wheatstone bridge
  2. Electronic oscillator
    1. Clock generator
      1. Clock signal
    2. Crystal oscillator
    3. Variable-frequency oscillator
  3. Frequency mixer
  4. Gyrator
  5. Negative impedance converter
  6. Power inverter
  7. Rectifier
    1. Diode bridge
  8. Voltage regulator

Semiconductors

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This section contains 14 articles.

  1. Semiconductor device (Level 3)
  2. Integrated circuit (Level 3)
    1. Application-specific integrated circuit
    2. Charge-coupled device (Level 4)
    3. Field-programmable gate array
    4. System on a chip
      1. Network on a chip
    5. Very-large-scale integration
  3. Transistor (Level 4)
    1. Bipolar junction transistor
    2. Field-effect transistor
      1. MOSFET
    3. Transistor–transistor logic
    4. CMOS

Signal processing

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This section contains 17 articles.

  1. Signal processing (Level 4)
    1. Digital signal
  2. Analog-to-digital converter
  3. Digital-to-analog converter
  4. Filter (signal processing) (Level 4)
    1. All-pass filter
      1. Lattice phase equaliser
    2. Band-pass filter
    3. Mechanical filter
    4. High-pass filter
    5. Low-pass filter
  5. Multiplexing
  6. Noise (electronics)
    1. Signal-to-noise ratio (Level 4)
  7. Oscilloscope (Level 4)
  8. Sampling (signal processing)
    1. Nyquist–Shannon sampling theorem

Signal transmission

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This section contains 7 articles.

  1. Antenna (radio) (Level 4)
    1. Antenna array
  2. Electromagnetic shielding
    1. Faraday cage
  3. Transmission line
    1. Coaxial cable
    2. Waveguide (Level 4)

Energy

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This section contains 173 articles.

Energy: General

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This section contains 5 articles.

  1. Energy development
  2. Fire (Level 2)
  3. Propellant
  4. Renewable energy (Level 3)
  5. Sustainable energy

Fuel

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This section contains 25 articles.

  1. Fuel (Level 4)
  2. Biofuel (Level 4)
    1. Biomass (energy)
    2. Charcoal (Level 4)
  3. Fossil fuel (Level 3)
    1. Coal (Level 3)
    2. Coke (fuel)
    3. Fracking
    4. Natural gas (Level 3)
      1. Liquefied natural gas
      2. Liquefied petroleum gas
    5. Oil well (Level 4)
      1. Petroleum reservoir
      2. Oil platform
  4. Hydrogen economy
  5. Oil refinery (Level 4)
    1. Aviation fuel
      1. Jet fuel
    2. Diesel fuel
    3. Fuel oil
    4. Gasoline (Level 4)
    5. Kerosene (Level 4)
    6. Liquid fuel
  6. Nuclear fuel
    1. Nuclear fuel cycle

Heating and cooling

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This section contains 12 articles.

  1. Heating, ventilation, and air conditioning (Level 4)
    1. Heat pump
  2. Air conditioning (Level 4)
    1. Evaporative cooler
    2. Passive cooling
    3. Windcatcher
  3. Boiler
  4. Fan (machine)
    1. Ceiling fan
  5. Heat exchanger
  6. Refrigeration (Level 3)
    1. Yakhchāl

Lighting

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This section contains 13 articles.

  1. Candle (Level 4)
  2. Electric light (Level 3)
    1. Flashlight
    2. Fluorescent lamp
    3. Incandescent light bulb (Level 4)
    4. Neon lighting
  3. Gas lighting
    1. Gas mantle
  4. Lantern
  5. Match
  6. Oil lamp
  7. Prism lighting
    1. Light tube

Power generation

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This section contains 41 articles.

  1. Power station (Level 4)
    1. Electric generator (Level 4)
      1. Induction generator
    2. Electricity generation (Level 4)
  2. Hydropower (Level 3)
    1. Hydroelectricity (Level 4)
    2. Tidal power
    3. Watermill (Level 4)
  3. Microgeneration
    1. Micro-CHP
  4. Nuclear power (Level 3)
    1. Fusion power
      1. Inertial confinement fusion
      2. Tokamak
    2. Nuclear reactor
      1. Breeder reactor
      2. Molten-salt reactor
      3. Heavy water reactor
      4. Small modular reactor
      5. Nuclear marine propulsion
      6. Nuclear meltdown
  5. Solar energy (Level 3)
    1. Solar power (Level 4)
    2. Solar cell (Level 4)
      1. Solar panel
  6. Thermal power station
    1. Boiler (power generation)
    2. Cogeneration
    3. Combined cycle power plant
    4. Concentrated solar power
    5. Cooling tower (Level 4)
    6. Fossil fuel power station
      1. Coal-fired power station
      2. Gas-fired power plant
    7. Geothermal power (Level 4)
  7. Turbine (Level 4)
    1. Gas turbine (Level 4)
    2. Steam turbine (Level 4)
    3. Wind turbine (Level 4)
  8. Wind power (Level 3)
    1. Windmill (Level 4)

Power storage

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This section contains 14 articles.

  1. Energy storage
    1. Grid energy storage
    2. Home energy storage
  2. Electric battery (Level 3)
    1. Lead–acid battery
    2. Nickel–iron battery
    3. Nickel–metal hydride battery
    4. Lithium-ion battery
    5. Lithium polymer battery
    6. Alkaline battery
    7. Atomic battery
  3. Fuel cell
  4. Pumped-storage hydroelectricity
  5. Solar fuel

Power transmission

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This section contains 60 articles. See also: Electromagnetism and Electromagnetism

  1. AC power plugs and sockets
  2. Electric power transmission (Level 4)
  3. Electric power distribution (Level 4)
  4. Electrical grid (Level 4)
    1. Three-phase electric power
    2. Virtual power plant
  5. Electrical wiring (Level 4)
    1. Electrical cable (Level 4)
  6. Mains electricity

Concepts

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This section contains 21 articles.

  1. Availability factor
  2. Automatic generation control
  3. Backfeeding
  4. Base load
  5. Capacity factor
  6. Demand factor
  7. Droop speed control
  8. Energy demand management
  9. Energy return on investment
  10. Electrical fault
  11. Grid code
  12. Load factor (electrical)
  13. Load-following power plant
  14. Merit order
  15. Nameplate capacity
  16. Peak demand
  17. Electric power quality
  18. Power-flow study
  19. Repowering
  20. Utility frequency
  21. Variable renewable energy

Electricity transmission and distribution

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This section contains 20 articles.

  1. Demand response
  2. Distributed generation
  3. Distribution board
  4. Dynamic demand (electric power)
  5. Electrical busbar system
  6. Electric power system
  7. Interconnector
  8. High-voltage direct current
  9. Load management
    1. Electricity market
  10. Mains electricity by country
  11. Overhead power line
  12. Smart grid
  13. Substation
  14. Super grid
  15. Transmission system operator
  16. Transmission tower
  17. Utility pole
    1. Overhead cable
  18. Wide area synchronous grid

Electrical protective devices

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This section contains 10 articles.

  1. Arc-fault circuit interrupter
  2. Circuit breaker (Level 4)
  3. Earth-leakage circuit breaker
  4. Fuse (electrical) (Level 4)
  5. Lightning rod
  6. Residual-current device
  7. Power system protection
  8. Protective relay
  9. Numerical relay
  10. Sulfur hexafluoride circuit breaker

Specific energy structure

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This section contains 3 articles. See "Dams" section in "Specific infrastructure" for hydroelectric power plants

  1. Synchronous grid of Continental Europe
  2. Eastern Interconnection
  3. Western Interconnection

Industry

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This section contains 216 articles. See also: "Industry" in Business and economics (Level 4)

Industry: General

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This section contains 17 articles.

  1. Factory (Level 4)
    1. Assembly line (Level 4)
    2. Automation (Level 4)
    3. Conveyor system
      1. Conveyor belt
    4. Industrial robot (Level 4)
    5. Interchangeable parts (Level 4)
    6. Mass production (Level 4)
    7. Mechanization (Level 4)
  2. Pelletizing
  3. Standardization (Level 4)
  4. Waste (Level 4)
    1. Incineration
    2. Landfill (Level 4)
    3. Recycling (Level 4)
    4. Waste management (Level 4)
  5. 3D printing

Food, water and health

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This section contains 34 articles.

  1. Air purifier
    1. Air filter
      1. HEPA
    2. Catalytic converter
    3. Respirator
      1. Gas mask
    4. Scrubber
  2. Bleach (Level 4)
  3. Desalination (Level 4)
  4. Detergent (Level 4)
  5. Laundry (Level 4)
  6. Food additive
    1. Food coloring
    2. High-fructose corn syrup
    3. Sugar substitute
  7. Food processing
    1. Fermentation in food processing
    2. Pasteurization (Level 4)
  8. Food storage
  9. Oxygen mask
  10. Sanitation (Level 3)
    1. Sewage
      1. Sanitary sewer (Level 4)
      2. Sewage treatment (Level 4)
        1. Septic tank
    2. Water purification (Level 4)
  11. Soap (Level 4)
  12. Sterilization (microbiology)
  13. Water supply network (Level 4)
    1. Aqueduct (water supply) (Level 4)
    2. Pumping station (Level 4)
    3. Qanat (Level 4)
    4. Water tower (Level 4)
    5. Well (Level 4)

Materials

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This section contains 45 articles.

  1. Abrasive (Level 4)
  2. Ceramic (Level 4)
    1. Pottery (Level 3)
      1. Earthenware
      2. Ironstone china
      3. Lithophane
      4. Porcelain (Level 4)
      5. Stoneware
      6. Terracotta
    2. Kiln
  3. Chemical vapor deposition
  4. Cork (material)
  5. Glass (Level 3)
    1. Borosilicate glass
    2. Float glass
    3. Fused quartz
    4. Glassblowing
    5. Glass fiber
      1. Glass wool
    6. Safety glass
    7. Soda–lime glass
  6. Gutta-percha
  7. Leather (Level 4)
    1. Artificial leather
    2. Hide (skin)
    3. Liming (leather processing)
    4. Parchment (Level 4)
      1. Vellum
    5. Suede
    6. Tanning (leather)
  8. Mineral wool
  9. Natural rubber (Level 3)
    1. Vulcanization
  10. Paper (Level 3)
    1. Cardboard
    2. Papermaking
      1. Pulp (paper)
      2. Sizing
    3. Papyrus (Level 4)
    4. Tissue paper
  11. Plastic (Level 3)
    1. Carbon-fiber reinforced polymer
    2. Fiberglass
    3. Injection moulding
    4. Microplastics

Chemicals

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This section contains 8 articles.

  1. Adhesive (Level 4)
  2. Chemical plant (Level 4)
  3. Composite material (Level 4)
  4. Explosive (Level 3)
    1. Dynamite (Level 4)
    2. Fireworks (Level 4)
  5. Lubricant
  6. Petrochemical (Level 4)

Metallurgy

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This section contains 48 articles.

  1. Metallurgy (Level 3)
    1. Smelting (Level 4)
      1. Blast furnace
      2. Crucible
      3. Electric arc furnace
      4. Induction furnace
  2. Extractive metallurgy
    1. Gold dredge
    2. Mineral processing
      1. Crusher
      2. Mechanical screening
      3. Spiral separator
      4. Stamp mill
      5. Trommel screen
    3. Rocker box
  3. Metalworking (Level 4)
    1. Anvil
    2. Bellows
    3. Bending (metalworking)
    4. Metal casting
      1. Die casting (Level 4)
      2. Lost-wax casting
      3. Sand casting
    5. Drawing (manufacturing)
      1. Wire (Level 4)
    6. Electrical discharge machining
    7. Extrusion (Level 4)
    8. Forge
    9. Forging (Level 4)
      1. Power hammer
    10. Grinding (abrasive cutting)
    11. Heat treating (Level 4)
    12. Laser cutting (Level 4)
    13. Machining
    14. Metal fabrication
    15. Plating
      1. Anodizing
      2. Electroplating
      3. Powder coating
    16. Precipitation hardening
    17. Quenching
    18. Rolling (metalworking) (Level 4)
    19. Sheet metal
    20. Sintering
    21. Soldering (Level 4)
    22. Steelmaking (Level 4)
    23. Welding (Level 4)
    24. Work hardening

Textiles

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This section contains 64 articles.

  1. Textile (Level 3)
    1. Carding

Fabrics and fibers

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This section contains 22 articles.

  1. Canvas (Level 4)
  2. Carbon fibers
  3. Cotton (Level 3)
    1. Chino cloth
    2. Denim
    3. Muslin
  4. Felt (Level 4)
  5. Flannel
  6. Fiber (Level 4)
  7. Jute
  8. Kevlar
  9. Lace (Level 4)
  10. Linen (Level 4)
  11. Polyester (Level 4)
  12. Rayon
  13. Silk (Level 4)
  14. Spandex
  15. Thread (yarn) (Level 4)
  16. Wool (Level 4)
    1. Cashmere wool
    2. Tweed
  17. Yarn (Level 4)

Other techniques

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This section contains 12 articles.

  1. Basket weaving (Level 4)
  2. Crochet (Level 4)
  3. Dyeing (Level 4)
    1. Dye (Level 4)
  4. Embroidery (Level 4)
  5. Knitting (Level 4)
  6. Macramé
  7. Textile printing
  8. Quilting (Level 4)
    1. Quilt
  9. Sewing (Level 4)
    1. Pattern

Spinning

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This section contains 12 articles.

  1. Hand spinning (Level 4)
    1. Distaff
    2. Spindle (textiles)
  2. Open-end spinning
  3. Spinning (polymers)
    1. Spinneret (polymers)
  4. Ring spinning
  5. Spinning frame
    1. Water frame
  6. Spinning jenny
  7. Spinning mule
  8. Spinning wheel

Weaving

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This section contains 16 articles.

  1. Loom (Level 4)
    1. Jacquard machine
    2. Pirn
    3. Power loom
    4. Shuttle (weaving)
      1. Flying shuttle
  2. Weaving (Level 4)
    1. Braid
    2. Brocade
    3. Damask
    4. Plain weave
    5. Satin
    6. Songket
    7. Tapestry (Level 4)
    8. Twill
    9. Warp and weft

Infrastructure

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This section contains 237 articles. See also Arts: Architecture

Basics

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This section contains 2 articles.

  1. Building (Level 3)
  2. Infrastructure (Level 3)

Building materials

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This section contains 42 articles.

  1. Brick (Level 4)
    1. Fire brick
  2. Cement (Level 4)
    1. Bitumen
    2. Portland cement
  3. Concrete (Level 3)
    1. Asphalt concrete
    2. Concrete slab
    3. Precast concrete
    4. Prestressed concrete
    5. Ready-mix concrete
    6. Reinforced concrete
      1. Rebar
    7. Roman concrete
    8. Shotcrete
  4. Masonry (Level 3)
    1. Brickwork
    2. Stonemasonry
  5. Quarry (Level 4)
  6. Scaffolding (Level 4)
  7. Adobe
  8. Construction aggregate
  9. Clapboard
  10. Mortar (masonry)
  11. Lath and plaster
    1. Lath
    2. Plaster
  12. Drywall
  13. Rammed earth
  14. Roof shingle
  15. Siding (construction)
  16. Stone slab
  17. Tile
  18. Wattle and daub
  19. Wood (Level 3)
    1. Engineered wood
      1. Wood–plastic composite
    2. Lumber (Level 4)
      1. Sawmill
    3. Wood drying
    4. Woodworking (Level 4)
      1. Carpentry (Level 4)

Environmental remediation

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This section contains 9 articles.

  1. Environmental remediation
    1. Bioremediation
      1. Bioaugmentation
      2. Biostimulation
      3. Phytoremediation
    2. Groundwater remediation
    3. In situ chemical oxidation
    4. Soil vapor extraction
    5. Remediation of contaminated sites with cement

Infrastructure by type

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This section contains 100 articles.

Architectural elements

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This section contains 21 articles.

  1. Arch (Level 4)
  2. Buttress
    1. Flying buttress
  3. Ceiling (Level 4)
  4. Column (Level 4)
  5. Dome (Level 4)
  6. Door (Level 4)
  7. Elevator (Level 4)
  8. Escalator
  9. Façade (Level 4)
  10. Floor (Level 4)
  11. Foundation (engineering) (Level 4)
  12. Ladder (Level 4)
  13. Lighting (Level 4)
  14. Pier (architecture)
  15. Roof (Level 4)
  16. Room (Level 4)
  17. Stairs (Level 4)
  18. Vault (architecture)
  19. Wall (Level 4)
  20. Window (Level 4)

Coastal infrastructure

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This section contains 10 articles.

  1. Dock (Level 4)
    1. Dry dock
    2. Marina
  2. Harbor (Level 4)
  3. Lighthouse (Level 4)
  4. Pier (Level 4)
    1. Maritime passenger terminal
  5. Port (Level 4)
    1. Container port
  6. Seawall

Ceremonial buildings

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This section contains 2 articles.

  1. Pagoda (Level 4)
  2. Pyramid (Level 4)

Commercial buildings

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This section contains 3 articles.

  1. Convention center
  2. Office (Level 4)
  3. Warehouse (Level 4)

Mixed-use buildings

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This section contains 4 articles.

  1. Military base
  2. Tower block (Level 4)
  3. Skyscraper (Level 4)
  4. Tower (Level 4)

Residential buildings and housing units

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This section contains 10 articles.

  1. Apartment (Level 4)
  2. House (Level 4)
    1. Hut (Level 4)
    2. Igloo (Level 4)
    3. Palace (Level 4)
    4. Villa (Level 4)
  3. Hotel (Level 4)
    1. Inn
    2. Motel
  4. Hostel

Rooms and spaces

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This section contains 20 articles.

  1. Attic
  2. Balcony
  3. Basement
  4. Bathroom (Level 4)
    1. Toilet (room)
      1. Public toilet
  5. Bedroom (Level 4)
  6. Courtyard
  7. Dining room
  8. Garage (residential) (Level 4)
  9. Hall
  10. Kitchen (Level 4)
  11. Laundry room
  12. Living room
  13. Lobby (room)
  14. Porch
  15. Patio
  16. Sauna (Level 4)
  17. Study (room)
  18. Sunroom

Portable buildings and shelters

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This section contains 2 articles.

  1. Tent (Level 4)
  2. Yurt

Earthworks

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This section contains 3 articles.

  1. Earthworks (engineering)
    1. Trench
  2. Underground power line

Fire protection

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This section contains 3 articles.

  1. Fire alarm system
  2. Fire hydrant
  3. Smoke detector

Hydraulic infrastructure

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This section contains 10 articles.

  1. Cistern
  2. Dam (Level 3)
    1. Caisson (engineering)
  3. Drainage (Level 4)
    1. Sluice
  4. Dredging
  5. Flood management (Level 4)
    1. Flood control in the Netherlands (Level 4)
  6. Levee (Level 4)
  7. Reservoir (Level 4)

Transport infrastructure

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This section contains 12 articles. See also #Transportation section

  1. Bridge (Level 3)
    1. Cantilever bridge
    2. Drawbridge
    3. Flying junction
    4. Pontoon bridge
    5. Suspension bridge
    6. Viaduct
  2. Tunnel (Level 4)
    1. Underwater tunnel
    2. Tunnel construction
      1. New Austrian tunneling method
      2. Tunnel boring machine

Specific infrastructure

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This section contains 84 articles.

See "Transportation" and "Energy" section for infrastructure in respective discipline

Dams

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This section contains 26 articles.

  1. Aswan Dam (Level 4)
  2. Grand Coulee Dam
  3. Grand Ethiopian Renaissance Dam
  4. Hoover Dam (Level 4)
  5. Itaipu Dam (Level 4)
  6. Tarbela Dam
  7. Three Gorges Dam (Level 4)
  8. Akosombo Dam
  9. Atatürk Dam
  10. Bratsk Hydroelectric Power Station
  11. Cahora Bassa
  12. Cofferdam
  13. New Croton Dam
  14. Delta Works
  15. Tabqa Dam
  16. Fort Peck Dam
  17. Grande Dixence Dam
  18. Guri Dam
  19. Enguri Dam
  20. Kariba Dam
  21. Mangla Dam
  22. Nurek Dam
  23. Oroville Dam
  24. Rogun Dam
  25. Sup'ung Dam
  26. Vajont Dam

Bridges

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This section contains 48 articles.

  1. Akashi Kaikyo Bridge (Level 4)
  2. Alcántara Bridge
  3. Astoria–Megler Bridge
  4. Auckland Harbour Bridge
  5. Banpo Bridge
  6. Bosphorus Bridge
  7. Bridge of Sighs
  8. Bridge of the Americas
  9. Britannia Bridge
  10. Brooklyn Bridge (Level 4)
  11. Charles Bridge
  12. Confederation Bridge
  13. Danyang–Kunshan Grand Bridge
  14. El Ferdan Railway Bridge
  15. Forth Bridge
  16. Gateshead Millennium Bridge
  17. George Washington Bridge
  18. Golden Gate Bridge (Level 4)
  19. Great Belt Bridge
  20. Great Seto Bridge
  21. Humber Bridge
  22. Qingdao Jiaozhou Bay Bridge
  23. Kapellbrücke
  24. London Bridge
  25. Mackinac Bridge
  26. Manhattan Bridge
  27. Mehmed Paša Sokolović Bridge
  28. Menai Bridge
  29. Millau Viaduct
  30. Minneapolis Skyway System
  31. Pont Alexandre III
  32. Pont du Gard
  33. Pont Neuf
  34. Ponte Sant'Angelo
  35. Ponte Vecchio
  36. Rainbow Bridge (Niagara Falls)
  37. Rainbow Bridge (Tokyo)
  38. Rialto Bridge
  39. San Francisco–Oakland Bay Bridge
  40. Si-o-se-pol
  41. Stari Most
  42. Sydney Harbour Bridge
  43. Tacoma Narrows Bridge
  44. The Iron Bridge
  45. Tower Bridge (Level 4)
  46. Trajan's Bridge
  47. Vasco da Gama Bridge
  48. Verrazzano-Narrows Bridge

Tunnels

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This section contains 3 articles.

  1. Channel Tunnel (Level 4)
  2. Gotthard Base Tunnel
  3. Seikan Tunnel

Multi-modal crossings

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This section contains 5 articles.

  1. Bering Strait crossing
  2. Chesapeake Bay Bridge–Tunnel
  3. Hong Kong–Zhuhai–Macau Bridge
  4. Tokyo Bay Aqua-Line
  5. Øresund Bridge

Others

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This section contains 2 articles.

  1. Multilevel streets in Chicago
  2. List of international submarine communications cables

Machinery and tools

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This section contains 294 articles.

Machinery and tools: General

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This section contains 11 articles.

  1. Machine (Level 4)
  2. MEMS
    1. Micromachinery
    2. Nanoelectromechanical systems
  3. Owner's manual
  4. Robotics (Level 3)
    1. Android (robot)
    2. Automaton
    3. Robot (Level 4)
    4. Robotic arm
    5. Leg mechanism

Engines

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This section contains 11 articles.

  1. Engine (Level 3)
  2. Electric motor (Level 3)
  3. Internal combustion engine (Level 3)
    1. Diesel engine (Level 4)
    2. Petrol engine
    3. Reciprocating engine
      1. Four-stroke engine (Level 4)
      2. Two-stroke engine
    4. Pistonless rotary engine
      1. Wankel engine
  4. Steam engine (Level 3)

Hydraulics and pneumatics

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This section contains 26 articles.

  1. Hydraulics
    1. Hydraulic cylinder
    2. Hydraulic machinery
    3. Hydraulic motor
    4. Hydraulic manifold
    5. Pump
      1. Hydraulic ram
    6. Siphon (Level 4)
  2. Pipe (fluid conveyance) (Level 4)
    1. Gasket (Level 4)
    2. Valve (Level 4)
  3. Plumbing (Level 4)
    1. Bidet
    2. Sink (Level 4)
    3. Toilet (Level 4)
      1. Flush toilet
      2. Portable toilet
      3. Squat toilet
      4. Toilet seat
      5. Urinal
  4. Pneumatics
    1. Compressor
    2. Jackhammer
    3. Nail gun
    4. Rivet gun
    5. Vacuum pump

Machinery

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This section contains 63 articles.

Farm and garden machinery

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This section contains 16 articles.

  1. Baler
  2. Chainsaw (Level 4)
  3. Combine harvester (Level 4)
  4. Corn harvester
  5. Cotton gin (Level 4)
  6. Cotton picker
  7. Cultivator (Level 4)
  8. Irrigation sprinkler (Level 4)
  9. Lawn mower (Level 4)
  10. Planter (farm implement)
  11. Reaper
  12. Reaper-binder
  13. Seed drill
  14. Swather
  15. Threshing machine
  16. Transplanter

Household appliances

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This section contains 35 articles.

  1. Home appliance (Level 4)
  2. Major appliance
  3. Barbecue grill
  4. Blender
  5. Clothes dryer (Level 4)
  6. Coffeemaker
  7. Dishwasher (Level 4)
  8. Furnace (central heating) (Level 4)
  9. Hair dryer
  10. Hair iron
  11. Humidifier
  12. Ironing (Level 4)
  13. Juicer
  14. Lock and key (Level 4)
    1. Deadbolt
    2. Disc tumbler lock
    3. Electronic lock
    4. Lever tumbler lock
    5. Pin tumbler lock
    6. Skeleton key
  15. Microwave oven (Level 4)
    1. Cavity magnetron (Level 4)
  16. Mixer (appliance)
  17. Oven (Level 3)
    1. Convection oven
  18. Refrigerator (Level 4)
  19. Rice cooker
  20. Sewing machine (Level 4)
  21. Slow cooker
  22. Stove (Level 4)
    1. Electric stove
  23. Vacuum cleaner (Level 4)
  24. Washing machine (Level 4)
  25. Water dispenser
  26. Water heating

Industrial machinery

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This section contains 12 articles.

  1. Centrifuge (Level 4)
    1. Ultracentrifuge
  2. Crane (machine) (Level 4)
  3. Forklift
  4. Mill (grinding)
  5. Machine tool
    1. Lathe (Level 4)
    2. Machine press (Level 4)
    3. Milling (machining)
    4. Numerical control
  6. Potter's wheel (Level 4)
  7. Trip hammer

Mechanisms

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This section contains 61 articles.

  1. Mechanism (engineering)

Flexible components

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This section contains 15 articles.

  1. Belt (mechanical)
  2. Chain (Level 4)
  3. Net (device)
    1. Mesh
      1. Sieve
  4. Rope (Level 4)
    1. Knot (Level 4)
      1. List of knots
      2. Bowline
      3. Double fisherman's knot
      4. Figure-eight knot
    2. Wire rope
      1. Bowden cable
      2. Flexible shaft
  5. Spring (device) (Level 4)

Rigid components

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This section contains 20 articles.

  1. Blade
  2. Fastener (Level 4)
    1. Nail (fastener) (Level 4)
    2. Nut (hardware) (Level 4)
    3. Rivet (Level 4)
    4. Screw
    5. Washer (hardware) (Level 4)
  3. Gear (Level 4)
  4. Hook
  5. Piston
  6. Simple machine (Level 3)
    1. Inclined plane (Level 4)
    2. Lever (Level 4)
    3. Pulley (Level 4)
      1. Block and tackle
    4. Screw mechanism (Level 4)
      1. Propeller
    5. Wedge (Level 4)
    6. Wheel (Level 3)
      1. Flywheel

Simple mechanisms

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This section contains 25 articles.

  1. Kinematic pair
    1. Ball joint
    2. Bearing (mechanical) (Level 4)
    3. Cam follower
      1. Tappet
    4. Hinge
    5. Rack and pinion
    6. Ratchet (device)
    7. Rod end bearing
    8. Wheel and axle (Level 4)
      1. Axle (Level 4)
  2. Linkage (mechanical)
    1. Clutch (Level 4)
    2. Differential (mechanical device)
    3. Epicyclic gearing
    4. Escapement
    5. Four-bar linkage
    6. Gimbal
    7. Pantograph
    8. Whippletree (mechanism)
  3. Shock absorber
    1. Dashpot
  4. Winch
    1. Capstan (nautical)
    2. Windlass

Tools

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This section contains 122 articles.

  1. Tool (Level 2)
  2. Lifting equipment
    1. Hoist (device)
    2. Jack (device)

Agricultural tools

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This section contains 15 articles.

  1. Archimedes' screw (Level 4)
  2. Flail
  3. Harrow (tool) (Level 4)
  4. Hoe (tool) (Level 4)
  5. Machete (Level 4)
  6. Mattock
  7. Pitchfork
  8. Plough (Level 4)
  9. Rake (tool) (Level 4)
  10. Roller (agricultural tool)
  11. Scythe
  12. Sickle (Level 4)
  13. Shadoof
  14. Shovel (Level 4)
  15. Wheelbarrow (Level 4)

Artist's and drafting tools

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This section contains 16 articles.

  1. Compass (drawing tool)
  2. Colored pencil
  3. Crayon
  4. Drafting machine
  5. Drawing board
  6. Easel
  7. French curve
  8. Modelling clay (Level 4)
  9. Paint (Level 4)
    1. Acrylic paint
    2. Enamel paint
    3. Varnish
  10. Brush (Level 4)
  11. Pastel (Level 4)
  12. Pigment (Level 4)
  13. T-square

Containers

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This section contains 20 articles.

  1. Container (Level 4)
  2. Aluminum can
  3. Bag
    1. Paper bag
    2. Plastic bag
  4. Barrel
  5. Basket
  6. Bottle
    1. Water bottle
  7. Box
    1. Cardboard box
    2. Coffin
    3. Crate
    4. Wooden box
  8. Envelope
  9. Intermodal container
  10. Packaging
  11. Paper cup
  12. Pressure vessel
  13. Steel and tin cans

Hand tools

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This section contains 15 articles.

  1. Adze
  2. Axe (Level 4)
  3. Chalk line
  4. Chisel (Level 4)
  5. Clamp (tool) (Level 4)
  6. Crowbar
  7. Drilling (Level 4)
  8. Hammer (Level 4)
  9. Hook (hand tool)
  10. Plane (tool) (Level 4)
  11. Pliers
  12. Saw (Level 4)
  13. Scissors (Level 4)
  14. Screwdriver
  15. Wrench

Measuring instruments

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This section contains 21 articles.

  1. Instrumentation (Level 4)
    1. Barometer (Level 4)
    2. Calipers (Level 4)
    3. Feeler gauge
    4. Ruler (Level 4)
      1. Metre-stick
      2. Tape measure
    5. Photometer (Level 4)
    6. Spectrometer (Level 4)
      1. Optical spectrometer
    7. Thermometer (Level 4)
    8. Astrolabe
    9. Breathalyzer
    10. Calorimeter
    11. Geiger counter
    12. Odometer
    13. Seismometer
    14. Speedometer
    15. Torque wrench
    16. Vernier scale
  2. Polygraph

Surveying tools

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This section contains 20 articles.

  1. Alidade
  2. Circumferentor
  3. Graphometer
  4. Gunter's chain
  5. Laser rangefinder
    1. Lidar
  6. Level (optical instrument)
    1. Inclinometer
      1. Topographic Abney level
    2. Level staff
    3. Plumb bob
    4. Spirit level
    5. Tiltmeter
  7. Plane table
  8. Reticle
  9. Stadimeter
    1. Stadia mark
  10. Surveyor's wheel
  11. Theodolite (Level 4)
    1. Total station

Writing tools

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This section contains 11 articles.

  1. Blackboard
  2. Eraser
  3. Ink (Level 4)
  4. Pen (Level 4)
    1. Ballpoint pen
    2. Fountain pen
    3. Marker pen
    4. Quill
  5. Pencil (Level 4)
    1. Pencil sharpener
  6. Whiteboard

Medical technology

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This section contains 43 articles.

Diagnostic technologies

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This section contains 4 articles.

  1. DNA profiling (Level 4)
  2. Electrocardiography (Level 4)
  3. Electroencephalography
  4. Endoscopy (Level 4)

Imaging

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This section contains 6 articles.

  1. Medical imaging (Level 3)
  2. CT scan
  3. Magnetic resonance imaging (Level 4)
  4. Medical ultrasound (Level 4)
  5. Positron emission tomography
  6. Radiography (Level 4)

Devices

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This section contains 15 articles.

  1. Artificial cardiac pacemaker
  2. Artificial organ (Level 4)
  3. Catheter
  4. Cervical collar
  5. Dentures (Level 4)
  6. Hearing aid
  7. Orthopedic boot
  8. Orthopedic cast
  9. Prosthesis (Level 4)
  10. Reflex hammer
  11. Sling (medicine)
  12. Splint (medicine)
  13. Stethoscope (Level 4)
  14. Tourniquet
  15. Ventilator

Equipment

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This section contains 7 articles.

  1. Adhesive bandage
  2. Bandage (Level 4)
  3. Dressing (medicine)
  4. Hypodermic needle
  5. Retainer (orthodontics)
  6. Stretcher
  7. Syringe (Level 4)

Mobility aids

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This section contains 2 articles.

  1. Crutch
  2. Wheelchair (Level 4)

Surgical instruments

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This section contains 5 articles.

  1. Forceps
  2. Scalpel
  3. Surgical suture
  4. Retractor (medicine)
  5. Tweezers

Techniques

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This section contains 2 articles.

  1. Cardiopulmonary bypass (Level 4)

Transport

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This section contains 2 articles.

  1. Ambulance (Level 4)
  2. Air medical services

Military technology

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This section contains 302 articles.

Military technology: General

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This section contains 8 articles.

  1. Weapon (Level 3)
  2. Military technology (Level 4)
  3. Booby trap
    1. Punji stick
    2. Trou de loup
  4. Siege engine
    1. Battering ram (Level 4)
    2. Siege tower

Countermeasures

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This section contains 27 articles.

  1. Stealth technology (Level 4)
  2. Missile defense

Armour

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This section contains 11 articles.

  1. Armour (Level 3)
    1. Body armor
      1. Bulletproof vest (Level 4)
      2. Chain mail (Level 4)
      3. Plate armour (Level 4)
    2. Vehicle armour
      1. Reactive armour
  2. Helmet (Level 4)
    1. Combat helmet
  3. Shield (Level 4)
    1. Scutum

Fortification

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This section contains 14 articles.

  1. Fortification (Level 3)
    1. Bastion fort
      1. Glacis
      2. Ravelin
      3. Tenaille
    2. Castle (Level 4)
      1. Motte-and-bailey castle
      2. Bastion
      3. Curtain wall (fortification)
      4. Gatehouse
      5. Keep
    3. Defensive wall (Level 4)
      1. Palisade
      2. Rampart (fortification)

Melee weapons

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This section contains 40 articles.

  1. Battle axe (Level 4)
  2. Brass knuckles
  3. Club (weapon) (Level 4)
    1. Baton (law enforcement)
    2. Mace (bludgeon)
    3. War hammer
  4. Flail (weapon)
    1. Nunchaku
  5. Sai (weapon)
  6. Tonfa


Knives

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This section contains 10 articles.

  1. Bayonet (Level 4)
  2. Knife (Level 3)
  3. Dagger (Level 4)
    1. Bowie knife
  4. Hunting knife
  5. Pocketknife
    1. Swiss Army knife
    2. Switchblade
  6. Throwing knife
  7. Utility knife

Polearms

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This section contains 8 articles.

  1. Polearm
  2. Dagger-axe
    1. Ji (polearm)
  3. Halberd
  4. Naginata
  5. Partisan (weapon)
  6. Spear (Level 4)
    1. Pike (weapon)

Swords

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This section contains 12 articles.

  1. Sword (Level 4)
  2. Claymore
  3. Cutlass
  4. Dao (Chinese sword)
  5. Gladius
  6. Katana (Level 4)
  7. Longsword
  8. Rapier (Level 4)
  9. Sabre
  10. Scimitar
  11. Talwar
  12. Wakizashi

Ranged weapons

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This section contains 107 articles.

  1. Ranged weapon
  2. Boomerang (Level 4)
  3. Gun
  4. Javelin
    1. Spear-thrower
  5. Shuriken
  6. Sling (weapon) (Level 4)
  7. Slingshot

Archery

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This section contains 11 articles.

  1. Bow and arrow (Level 3)
    1. Compound bow
    2. Longbow
    3. Recurve bow
  2. Arrow
    1. Arrowhead
    2. Fletching
  3. Bowstring
  4. Crossbow (Level 4)
    1. Repeating crossbow
  5. Quiver

Artillery

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This section contains 13 articles.

  1. Artillery (Level 4)
  2. Cannon (Level 4)
    1. Field gun
    2. Howitzer
    3. Limbers and caissons
    4. Mortar (weapon) (Level 4)
  3. Catapult (Level 4)
    1. Ballista (Level 4)
      1. Polybolos
    2. Mangonel
    3. Onager (weapon)
    4. Trebuchet
  4. Railgun

Firearms

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This section contains 64 articles.

  1. Firearm (Level 3)
    1. Fire lance
    2. Hand cannon
  2. Handgun (Level 4)
    1. Revolver
    2. Pistol
  3. Long gun
    1. Arquebus
    2. Musket (Level 4)
    3. Rifle (Level 4)
      1. Assault rifle (Level 4)
      2. Sniper rifle
    4. Shotgun (Level 4)
    5. Submachine gun
  4. Machine gun (Level 4)
  5. Autocannon
    1. Rotary cannon

Ammunition

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This section contains 15 articles.

  1. Ammunition (Level 4)
    1. Ammunition box
  2. Gunpowder (Level 3)
    1. Powder keg
    2. Smokeless powder
  3. Bullet
    1. Armor-piercing bullet
    2. Hollow-point bullet
    3. Tracer ammunition
  4. Flechette
  5. Cartridge (firearms)
    1. Sabot (firearms)
  6. Shotgun cartridge
    1. Shot (pellet)
  7. Shotgun slug

Mechanisms

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This section contains 19 articles.

  1. Breechloader
    1. Action (firearms)
      1. Automatic firearm
      2. Bolt action
      3. Burst mode (weapons)
      4. Repeating firearm
      5. Select fire
      6. Semi-automatic firearm
    2. Firing pin
    3. Magazine (firearms)
  2. Gun barrel
    1. Multiple-barrel firearm
    2. Rifling
  3. Muzzleloader
    1. Flintlock
    2. Matchlock
    3. Percussion cap
    4. Wheellock
  4. Trigger (firearms)

Specific cartridges

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This section contains 2 articles.

  1. 9×19mm Parabellum
  2. 5.56×45mm NATO

Specific firearms

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This section contains 11 articles.

  1. AK-47
  2. AR-15–style rifle
  3. Chassepot
  4. Dreyse needle gun
  5. Gatling gun
  6. Glock
  7. IWI Tavor
  8. M134 Minigun
  9. M4 carbine
  10. M16 rifle
  11. M1911 pistol

Missiles

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This section contains 11 articles.

  1. Missile (Level 4)
    1. Air-to-air missile
    2. Anti-tank guided missile
    3. Cruise missile
    4. Intercontinental ballistic missile
    5. Rocket-propelled grenade
    6. Surface-to-air missile
      1. Man-portable air-defense system
  2. Missile guidance
  3. Multiple rocket launcher
  4. Warhead

Explosive weapons

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This section contains 15 articles.

  1. Bomb (Level 3)
    1. Improvised explosive device (Level 4)
      1. Car bomb
    2. Detonator
    3. Fuze
      1. Contact fuze
      2. Proximity fuze
  2. Cluster munition (Level 4)
  3. Grenade (Level 4)
  4. Land mine (Level 4)
  5. Plastic explosive
  6. Shaped charge
    1. Explosively formed penetrator
    2. High-explosive anti-tank
  7. Thermobaric weapon

Incendiary weapons

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This section contains 5 articles.

  1. Greek fire
  2. Flamethrower
  3. Molotov cocktail
  4. Napalm (Level 4)
  5. White phosphorus munition

Maneuver

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This section contains 9 articles.

  1. Horses in warfare (Level 4)
    1. Caltrop
    2. Chariot (Level 4)
  2. Infantry fighting vehicle
    1. Armoured personnel carrier
    2. Technical (vehicle)
  3. Tank (Level 4)
    1. Main battle tank
  4. War elephant (Level 4)

Military aviation

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This section contains 45 articles.

  1. Military aviation
  2. Military aircraft (Level 4)
    1. Military glider
    2. Military helicopter
  3. Attack aircraft (Level 4)
    1. Gunship
  4. Bomber (Level 4)
    1. Strategic bomber
    2. Heavy bomber
    3. Medium bomber
    4. Interdictor
    5. Penetrator (aircraft)
  5. Fighter aircraft (Level 4)
    1. Air superiority fighter
    2. Interceptor aircraft
    3. Fighter-bomber
    4. Strike fighter
  6. Electronic-warfare aircraft
  7. Maritime patrol aircraft
  8. Multirole combat aircraft
  9. Military transport aircraft
  10. Airborne early warning and control
  11. Reconnaissance aircraft
  12. Surveillance aircraft
  13. Experimental aircraft
  14. Aerial refueling

Specific aircraft

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This section contains 19 articles.

  1. Boeing B-29 Superfortress
    1. Enola Gay
  2. Boeing B-52 Stratofortress
  3. Dassault Rafale
  4. Embraer EMB 314 Super Tucano
  5. Eurofighter Typhoon
  6. Fairchild Republic A-10 Thunderbolt II
  7. General Dynamics F-16 Fighting Falcon
  8. Lockheed C-130 Hercules
  9. Lockheed SR-71 Blackbird
  10. Lockheed Martin F-22 Raptor
  11. Lockheed Martin F-35 Lightning II
  12. McDonnell Douglas F-15 Eagle
  13. McDonnell Douglas F/A-18 Hornet
  14. Mikoyan-Gurevich MiG-21
  15. North American P-51 Mustang
  16. Northrop B-2 Spirit
  17. Panavia Tornado
  18. Rockwell B-1 Lancer
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This section contains 20 articles.

  1. Warship (Level 4)
    1. Aircraft carrier (Level 4)
    2. Battleship (Level 4)
      1. Dreadnought
    3. Corvette
    4. Cruiser
    5. Destroyer
    6. Frigate
    7. Galleon
    8. Galley (Level 4)
      1. Trireme
    9. Gunboat
    10. Ironclad warship
    11. Ship of the line (Level 4)
  2. Submarine (Level 4)
  3. Boom (navigational barrier)
    1. Anti-submarine net
  4. Depth charge
  5. Naval mine (Level 4)
  6. Torpedo (Level 4)

Less-lethal weapons

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This section contains 14 articles.

  1. Non-lethal weapon
  2. Active Denial System
  3. Baton round
    1. Bean bag round
    2. Plastic bullet
    3. Rubber bullet
    4. Sponge grenade
  4. Sonic weapon
  5. Stun grenade
  6. Taser
  7. Tear gas
    1. CS gas
    2. Pepper spray
  8. Water cannon

Weapon of mass destruction

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This section contains 12 articles.

  1. Weapon of mass destruction (Level 4)
  2. Biological warfare (Level 4)
    1. Entomological warfare
  3. Chemical weapon (Level 4)
    1. Blister agent
    2. Blood agent
    3. Nerve agent
  4. Dirty bomb
  5. Nuclear weapon (Level 4)
    1. Thermonuclear weapon (Level 4)
    2. Nuclear weapon design
    3. Nuclear proliferation

Navigation and timekeeping

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This section contains 88 articles. For units of time (hour, day, etc.), see Physical sciences – Measurement. For maps and cartography, see Geography – Physical geography.

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This section contains 24 articles.

  1. Navigation (Level 3)
  2. Compass (Level 3)
    1. Compass rose
  3. Cardinal direction (Level 4)
    1. North
    2. South
    3. East
    4. West
  4. Celestial navigation (Level 4)
    1. Backstaff
    2. Jacob's staff
    3. Octant (instrument)
    4. Quadrant (instrument)
    5. Sextant (Level 4)
  5. Dead reckoning (Level 4)
  6. Gyroscope (Level 4)
  7. Satellite navigation (Level 4)
    1. BeiDou
    2. Galileo (satellite navigation)
    3. Global Positioning System (Level 4)
    4. GLONASS
    5. Satellite navigation device
  8. Radar (Level 3)
  9. Sonar

Timekeeping

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This section contains 64 articles.

  1. Astronomical year numbering
  2. Calendar (Level 3)
  3. Clock (Level 3)
  4. Leap year (Level 4)
  5. Leap second
  6. Future
  7. Present
  8. Past
  9. Standard time
  10. Timeline
  11. Time standard
    1. Coordinated Universal Time (Level 4)
    2. Greenwich Mean Time
    3. International Atomic Time
  12. Time zone (Level 4)
    1. Daylight saving time (Level 4)

Calendars

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This section contains 12 articles.

  1. Solar calendar
    1. Gregorian calendar (Level 4)
      1. Anno Domini
      2. Common Era
    2. Julian calendar (Level 4)
  2. Lunisolar calendar
    1. Buddhist calendar
    2. Chinese calendar (Level 4)
    3. Hindu calendar
  3. Lunar calendar
    1. Hebrew calendar
    2. Islamic calendar (Level 4)

Clocks

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This section contains 16 articles.

  1. 12-hour clock
  2. 24-hour clock
  3. Alarm clock
  4. Atomic clock (Level 4)
  5. Digital clock
  6. Clock face
  7. Hourglass
  8. Marine chronometer
  9. Pendulum clock
    1. Pendulum (Level 4)
  10. Quartz clock
  11. Sundial (Level 4)
  12. Watch (Level 4)
    1. Pocket watch
    2. Stopwatch
  13. Water clock

Months

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This section contains 12 articles.

  1. January
  2. February
  3. March
  4. April
  5. May
  6. June
  7. July
  8. August
  9. September
  10. October
  11. November
  12. December

Days of the week

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This section contains 8 articles.

  1. Names of the days of the week
  2. Monday
  3. Tuesday
  4. Wednesday
  5. Thursday
  6. Friday
  7. Saturday
  8. Sunday

Optical technology

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This section contains 60 articles.

Optical components

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This section contains 15 articles.

  1. Lens (Level 3)
    1. Fresnel lens
    2. Thin lens
  2. Collimator
  3. Diffraction grating (Level 4)
  4. Mirror (Level 4)
    1. One-way mirror
  5. Optical coating
    1. Anti-reflective coating (Level 4)
  6. Optical fiber (Level 4)
  7. Optical filter
  8. Optical isolator
  9. Polarizer (Level 4)
  10. Prism (optics) (Level 4)
    1. Pentaprism

Optical instruments

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This section contains 16 articles.

  1. Autocollimator
  2. Binoculars (Level 4)
  3. Glasses (Level 4)
    1. Bifocals
    2. Contact lens
  4. Interferometry (Level 4)
  5. Loupe
  6. Magnifying glass
  7. Microscope (Level 3)
    1. Electron microscope (Level 4)
      1. Scanning electron microscope
      2. Transmission electron microscopy
      3. Scanning tunneling microscope
    2. Optical microscope (Level 4)
  8. Periscope
  9. Projector

Lasers

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This section contains 9 articles.

  1. Laser (Level 3)
    1. Solid-state laser
      1. Ruby laser
      2. Nd:YAG laser
    2. Dye laser
    3. Gas laser
      1. Carbon-dioxide laser
      2. Helium–neon laser
  2. Maser

Photography

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This section contains 20 articles.

  1. Camera (Level 3)
    1. Hidden camera
    2. Instant camera
    3. Rangefinder camera
    4. Single-lens reflex camera
      1. Digital single-lens reflex camera
    5. Twin-lens reflex camera
    6. Closed-circuit television
  2. Holography (Level 4)
  3. Photographic film (Level 4)
    1. Photographic plate
  4. Photography (Level 3)
    1. Digital photography (Level 4)
    2. Fine-art photography (Level 4)
    3. Landscape photography
    4. Portrait photography
    5. Street photography
    6. Exposure (photography)
    7. Flash (photography)
    8. Multi-exposure HDR capture

Astronomical technology

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This section contains 71 articles.

  1. Astronomical catalog
  2. Ephemeris
  3. Star chart
  4. Astronomical Almanac

Telescope

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This section contains 67 articles.

  1. Telescope (Level 3)
  2. Reflecting telescope
    1. Cassegrain reflector
    2. Dobsonian telescope
    3. Gregorian telescope
    4. Newtonian telescope
    5. Ritchey–Chrétien telescope
    6. Schmidt–Cassegrain telescope
  3. Refracting telescope
  4. X-ray telescope
  5. Optical telescope (Level 4)
  6. Infrared telescope
  7. Radio telescope (Level 4)
  8. Solar telescope
  9. Space telescope
  10. Astronomical interferometer
    1. Aperture synthesis
  11. Telescope mount
    1. Altazimuth mount
    2. Equatorial mount
  12. Active optics
  13. Adaptive optics
  14. Eyepiece
  15. Astronomical filter
  16. Primary mirror
  17. Gravitational-wave observatory

Space-based observatories

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This section contains 15 articles.

  1. Hubble Space Telescope (Level 4)
  2. Spitzer Space Telescope
  3. Herschel Space Observatory
  4. INTEGRAL
  5. Fermi Gamma-ray Space Telescope
  6. James Webb Space Telescope
  7. Wide-field Infrared Survey Explorer
  8. IRAS
  9. Chandra X-ray Observatory
  10. Kepler
  11. GALEX
  12. Hipparcos
  13. Gaia (spacecraft)
  14. XMM-Newton
  15. ROSAT

Ground-based observatories

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This section contains 26 articles.

  1. Atacama Large Millimeter Array (Level 4)
  2. Mauna Kea Observatories (Level 4)
    1. Subaru Telescope
    2. Thirty Meter Telescope
    3. W. M. Keck Observatory
  3. Gemini Observatory
  4. Five-hundred-meter Aperture Spherical Telescope
  5. LIGO
  6. Virgo interferometer
  7. IceCube Neutrino Observatory
  8. Very Large Telescope
  9. Large Binocular Telescope
  10. Mount Wilson Observatory
  11. Very Large Array
  12. Very Long Baseline Array
  13. Arecibo Observatory
  14. Green Bank Telescope
  15. Effelsberg 100-m Radio Telescope
  16. Low-Frequency Array
  17. MeerKAT
  18. Square Kilometre Array
  19. Extremely Large Telescope
    1. Giant Magellan Telescope
  20. Wise Observatory
  21. South Pole Telescope
  22. Jodrell Bank Observatory

Space

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This section contains 76 articles.

Basics

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This section contains 20 articles.

  1. Spaceflight (Level 3)
    1. Sub-orbital spaceflight
    2. Orbital spaceflight
    3. Artificial gravity
  2. Spacecraft (Level 4)
  3. Rocket (Level 3)
    1. Launch pad (Level 4)
    2. Launch vehicle (Level 4)
    3. Rocket engine (Level 4)
  4. Satellite (Level 3)
  5. Space station (Level 3)
  6. Astronaut (Level 4)
    1. Space suit
  7. Space capsule
  8. Uncrewed spacecraft
  9. Interstellar travel
  10. Space colonization
  11. Space settlement
  12. Space industry
  13. Asteroid mining

Programs and launch sites

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This section contains 16 articles.

  1. NASA (Level 4)
    1. Apollo program (Level 4)
    2. Kennedy Space Center (Level 4)
    3. Project Gemini
    4. Project Mercury
  2. Soviet space program (Level 4)
    1. Baikonur Cosmodrome (Level 4)
    2. Vostok programme
    3. Voskhod programme
    4. Soyuz programme
  3. Roscosmos (Level 4)
  4. European Space Agency (Level 4)
  5. China National Space Administration (Level 4)
  6. ISRO
  7. Israel Space Agency
  8. JAXA

Crewed vehicles

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This section contains 12 articles.

  1. Apollo 11
  2. International Space Station (Level 4)
  3. Mir (Level 4)
  4. Salyut 1
  5. Space Shuttle (Level 4)
    1. Space Shuttle Challenger disaster
    2. Space Shuttle Columbia disaster
  6. Saturn V (Level 4)
  7. Soyuz (spacecraft) (Level 4)
  8. Skylab
  9. Tiangong space station
  10. Vostok 1

Unmanned spacecraft

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This section contains 19 articles.

  1. Sputnik 1 (Level 4)
  2. Sputnik 2
  3. Luna 2
  4. Luna 3
  5. Mariner 2
  6. Luna 9
  7. Voyager program (Level 4)
    1. Voyager 1
    2. Voyager 2
    3. Voyager Golden Record
  8. Pioneer program
    1. Pioneer 10
    2. Pioneer 11
  9. New Horizons
  10. Galileo project
  11. Cassini–Huygens
  12. Cosmic Background Explorer
  13. Wilkinson Microwave Anisotropy Probe
  14. MESSENGER

Rovers

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This section contains 9 articles.

  1. Rover (space exploration)
  2. Mars rover
    1. Perseverance (rover)
    2. Curiosity (rover)
    3. Spirit (rover)
    4. Opportunity (rover)
    5. Sojourner (rover)
  3. Lunar rover
    1. Lunokhod 1

Transportation

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This section contains 459 articles.

Basics

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This section contains 20 articles.

  1. Transport (Level 2)
    1. Public transport (Level 4)
    2. Private transport
  2. Travel (Level 4)
  3. Airbag
  4. Passenger
    1. Intermodal passenger transport
  5. Freight transport (Level 4)
    1. Cargo (Level 4)
  6. Induced demand
  7. Seat belt
  8. Traffic
    1. Traffic collision (Level 4)
    2. Traffic congestion
  9. Vehicle (Level 4)
    1. Motor vehicle
    2. Alternative fuel vehicle
    3. Electric vehicle
    4. Battery electric vehicle
    5. Hybrid vehicle

Ground transport

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This section contains 164 articles.

Concepts of ground transport

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This section contains 22 articles.

  1. Land transport
    1. Road transport (Level 4)
  2. Breakdown (vehicle)
  3. Charging station
  4. Driving (Level 4)
  5. Filling station (Level 4)
  6. Parking (Level 4)
    1. Parking lot
  7. Service (motor vehicle)
    1. Automobile repair shop
    2. Bus garage
    3. Car wash
    4. Rail yard
  8. Rest area
  9. Tire (Level 4)
  10. Transport hub
    1. Bus station
    2. Bus stop
    3. Train station (Level 4)
      1. Goods station
      2. Railway platform
    4. Park and ride

Road infrastructure

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This section contains 24 articles. For bridges and tunnels, see transport infrastructure in #Infrastructure section.

  1. Road (Level 3)
    1. Byway (road)
    2. Dirt road
    3. Highway (Level 4)
      1. Controlled-access highway (Level 4)
    4. Road junction
      1. Interchange (road)
        1. Stack interchange
      2. Intersection (road)
        1. Traffic light
        2. Traffic sign
    5. Toll road
  2. Footpath
  3. Pedestrian crossing
  4. Pedestrian zone
  5. Sidewalk
  6. Trail (Level 4)
  7. Cycling infrastructure
    1. Bicycle boulevard
    2. Bike lane
    3. Bicycle parking rack
    4. Shared-use path
    5. Bicycle-sharing system
    6. Cycle track

Motorized road transport

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This section contains 53 articles.

  1. Auto rickshaw
  2. Bus (Level 4)
    1. Articulated bus
    2. Bus rapid transit
    3. Coach (bus)
    4. Double-decker bus
    5. Minibus
    6. Public transport bus service
    7. School bus
    8. Trolleybus
  3. Car (Level 3)
    1. Convertible
    2. Coupe
    3. Electric car
    4. Grand tourer
    5. Hatchback
    6. Limousine
    7. Luxury car
    8. Microcar
    9. Muscle car
    10. Sedan (automobile)
    11. Sports car
    12. Station wagon
    13. Supercar
    14. T-top
  4. Motorcycle (Level 4)
    1. Chopper (motorcycle)
    2. Minibike
    3. Moped
    4. Rat bike
    5. Scooter (motorcycle)
      1. Motorized scooter
      2. Scooter-sharing system
    6. Sports motorcycle
  5. Off-road vehicle
    1. All-terrain vehicle
    2. Dune buggy
    3. Snowmobile
  6. Shared transport
    1. Carpool
    2. Demand-responsive transport
  7. Truck (Level 4)
    1. Flatbed truck
    2. Monster truck
    3. Pickup truck
    4. Semi-trailer truck
    5. SUV
  8. Van (Level 4)
    1. Minivan
  9. Vehicle for hire
    1. Motorcycle taxi
    2. Share taxi
    3. Taxi (Level 4)

Rail and cable transport

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This section contains 28 articles.

  1. Rail transport (Level 4)
    1. Railway track (Level 4)
      1. Elevated railway
    2. Railway electrification
  2. Train (Level 3)
    1. Locomotive (Level 4)
      1. Electric locomotive
      2. Diesel locomotive
      3. Steam locomotive (Level 4)
    2. Railroad car
    3. Rolling stock
    4. Passenger train
      1. Commuter rail
    5. Rail freight transport
    6. Freight train
  3. Cable transport (Level 4)
    1. Aerial tramway (Level 4)
    2. Cable car (railway)
    3. Funicular
    4. Gondola lift
    5. Ski lift
  4. High-speed rail (Level 4)
  5. Tram (Level 4)
    1. Interurban
    2. Light rail
  6. Rapid transit (Level 4)
    1. Medium-capacity rail system
    2. Monorail (Level 4)

Animal-powered transport

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This section contains 6 articles.

  1. Carriage (Level 4)
  2. Cart (Level 4)
  3. Horsecar
  4. Saddle (Level 4)
  5. Stirrup
  6. Stagecoach

Human-powered transport

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This section contains 16 articles.

  1. Bicycle (Level 3)
    1. Bicycle brake
    2. Bicycle gearing
    3. Derailleur
    4. Shifter (bicycle part)
    5. BMX bike
    6. Electric bicycle
    7. Mountain bike
    8. Penny-farthing
    9. Recumbent bicycle
    10. Tandem bicycle
  2. Handcar
  3. Kick scooter
  4. Rickshaw (Level 4)
  5. Tricycle
  6. Unicycle

Specific-purpose transportation

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This section contains 12 articles. For medical transport, see Medical section

  1. Baby transport (Level 4)
  2. Fire engine
  3. Paratransit
  4. Pipeline (Level 4)
  5. Police car
  6. Heavy equipment
    1. Bulldozer
    2. Dump truck
    3. Excavator
    4. Road roller
      1. Steamroller
    5. Tractor (Level 4)

Specific automobiles

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This section contains 3 articles.

  1. Ford Model T
  2. Toyota Corolla
  3. Volkswagen Beetle
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This section contains 64 articles. For military watercraft, see Military technology. For pier and port, see coastal infrastructure.

  1. Maritime transport (Level 4)
  2. Ship (Level 3)
    1. Anchor
  3. Watercraft
  4. Buoy
  5. Canal (Level 3)
    1. Lock (water navigation) (Level 4)
  6. Barge (Level 4)
  7. Boat (Level 4)
  8. Canoe (Level 4)
  9. Cargo ship (Level 4)
    1. Container ship
  10. Ferry (Level 4)
  11. Fishing vessel (Level 4)
  12. Hospital ship
  13. Hovercraft (Level 4)
  14. Hydrofoil
  15. Icebreaker
  16. Kayak
  17. Merchant ship (Level 4)
  18. Motor ship
  19. Motorboat
  20. Multihull
    1. Catamaran
  21. Naval architecture
  22. Outrigger (nautical)
  23. Passenger ship (Level 4)
    1. Cruise ship
    2. Ocean liner
  24. Personal watercraft
  25. Raft
  26. Riverboat (Level 4)
  27. Sail (Level 4)
  28. Sailboat
    1. Schooner
    2. Sloop
  29. Sailing ship (Level 4)
    1. Caravel
    2. Clipper
    3. Junk (ship)
  30. Sailing (Level 4)
  31. Shipbuilding (Level 4)
  32. Steamboat (Level 4)
  33. Steamship
    1. Paddle steamer
  34. Submersible
    1. Diving bell
    2. Remotely operated underwater vehicle
  35. Tanker (ship) (Level 4)
    1. Oil tanker
  36. Tugboat

Specific piers and ports

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This section contains 13 articles.

  1. Port of Singapore
  2. Port of Ningbo-Zhoushan
  3. Port of Busan
  4. Port of Rotterdam
  5. Port of Jebel Ali
  6. Port of Los Angeles
  7. Port of New York and New Jersey
  8. Port of Port Hedland
  9. Port of Yokohama
  10. Port of Kobe
  11. Port of Hamburg
  12. PortMiami
  13. Port of Barcelona

Aviation

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This section contains 116 articles.

Concepts of aviation

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This section contains 11 articles.

  1. Aviation (Level 4)
  2. Aircraft (Level 3)
  3. Airline (Level 4)
  4. Airport (Level 4)
    1. Airport terminal
    2. Helipad
    3. Runway
  5. Air traffic control (Level 4)
  6. Civil aviation
    1. General aviation
    2. Parachute (Level 4)

Types of aircraft

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This section contains 20 articles.

  1. Aerostat
    1. Balloon (aeronautics) (Level 4)
      1. Hot air balloon (Level 4)
      2. Gas balloon
    2. Airship (Level 4)
      1. Blimp
      2. Rigid airship
        1. Zeppelin
      3. Semi-rigid airship
  2. Fixed-wing aircraft (Level 4)
    1. Airplane (Level 4)
      1. Airliner
    2. Cargo aircraft
    3. Glider (aircraft) (Level 4)
    4. Jet aircraft (Level 4)
    5. Ultralight aviation
      1. Powered paragliding
  3. Rotorcraft
    1. Helicopter (Level 4)
  4. Unmanned aerial vehicle (Level 4)

Aircraft components

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This section contains 43 articles.

  1. Aircraft engine (Level 4)
    1. Auxiliary power unit
    2. Jet engine (Level 4)
      1. Turbofan
      2. Turbojet
    3. Radial engine
    4. Turboprop
    5. Turboshaft
    6. Thrust reversal
  2. Aircraft flight control system
    1. Fly-by-wire
  3. Airframe
    1. Aircraft fairing
    2. Empennage
    3. Fuselage
    4. Landing gear
    5. Wing (Level 4)
      1. Airfoil
      2. Wingtip device
  4. Avionics
    1. ACARS
    2. Airborne collision avoidance system
    3. ARINC 429
    4. Autopilot
    5. FADEC
    6. Flight management system
    7. Flight recorder
    8. Future Air Navigation System
    9. Health and usage monitoring systems
    10. Integrated modular avionics
  5. Cockpit
    1. Flight instruments
    2. Glass cockpit
  6. Flight control surfaces
    1. Aileron
    2. Air brake (aeronautics)
    3. Elevator (aeronautics)
    4. Flap (aeronautics)
    5. Leading-edge slat
    6. Spoiler (aeronautics)
    7. Stabilizer (aeronautics)
    8. Trim tab
  7. Line-replaceable unit

Specific aircraft

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This section contains 29 articles. For military aircraft, see Military technology

  1. Airbus A300
  2. Airbus A320 family
  3. Airbus A330
  4. Airbus A350
  5. Airbus A380
  6. Antonov An-225 Mriya
  7. Boeing 707
  8. Boeing 727
  9. Boeing 737
  10. Boeing 747
  11. Boeing 757
  12. Boeing 767
  13. Boeing 777
  14. Boeing 787 Dreamliner
  15. De Havilland Canada Dash 8
  16. Cessna 172
  17. Concorde
  18. de Havilland Comet
  19. Douglas DC-3
  20. Douglas DC-6
  21. Douglas DC-8
  22. Embraer E-Jet family
  23. Ilyushin Il-76
  24. Lockheed Constellation
  25. McDonnell Douglas DC-9
  26. McDonnell Douglas DC-10
  27. Mil Mi-8
  28. Tupolev Tu-154
  29. Wright Flyer

Airports

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This section contains 13 articles.

Asia

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This section contains 6 articles.

  1. Beijing Capital International Airport
  2. Dubai International Airport
  3. Haneda Airport
  4. Hong Kong International Airport
  5. Indira Gandhi International Airport
  6. Shanghai Pudong International Airport

Europe

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This section contains 3 articles.

  1. Charles de Gaulle Airport
  2. Heathrow Airport
  3. Sheremetyevo International Airport

North America

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This section contains 4 articles.

  1. Hartsfield–Jackson Atlanta International Airport
  2. John F. Kennedy International Airport
  3. Los Angeles International Airport
  4. O'Hare International Airport

Specific transportation systems

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This section contains 95 articles.

Ground transportation networks

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This section contains 15 articles. See Geography/Physical for Maritime transportation network. See Society/Politic and economic for companies that operate transportation networks.

  1. Intercontinental and transoceanic fixed links
  2. Arab Mashreq International Road Network
  3. Asian Highway Network
  4. Autobahn
  5. Camino de Santiago
  6. Interstate Highway System
    1. U.S. Route 66
  7. Roman roads
    1. Appian Way
  8. Trans-African Highway network
  9. Trans-European Transport Network
    1. Trans-European high-speed rail network
  10. EuroVelo
  11. European long-distance paths
  12. Transcontinental railroad

Rapid transit

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This section contains 64 articles.

Africa

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This section contains 1 article.

  1. Cairo Metro

Americas

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This section contains 13 articles.

  1. Caracas Metro
  2. Mexico City Metro
  3. Santiago Metro
  4. TransMilenio
Brazil
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This section contains 2 articles.

  1. Rio de Janeiro Metro
  2. São Paulo Metro
Canada
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This section contains 3 articles.

  1. Montreal Metro
  2. Toronto subway
  3. SkyTrain (Vancouver)
United States
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This section contains 4 articles.

  1. Chicago "L"
  2. Massachusetts Bay Transportation Authority
  3. New York City Subway (Level 4)
  4. Washington Metro

Asia

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This section contains 24 articles.

  1. Dubai Metro
  2. Transjakarta
  3. Mass Rapid Transit (Singapore)
  4. Taipei Metro
  5. Tehran Metro
China
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This section contains 6 articles.

  1. Beijing Subway
  2. Chongqing Rail Transit
  3. Guangzhou Metro
  4. MTR
  5. Shanghai Metro
  6. Shenzhen Metro
India
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This section contains 5 articles.

  1. Delhi Metro
  2. Hyderabad Metro
  3. Kolkata Metro
  4. Mumbai Metro
  5. Namma Metro
Japan
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This section contains 6 articles.

  1. Hiroshima Electric Railway
  2. Nagoya Municipal Subway
  3. Osaka Metro
  4. Sapporo Municipal Subway
  5. Toei Subway
  6. Tokyo Metro
South Korea
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This section contains 2 articles.

  1. Busan Metro
  2. Seoul Metropolitan Subway

Europe

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This section contains 26 articles.

  1. Athens Metro
  2. Brussels Metro
  3. Budapest Metro
  4. Istanbul Metro
  5. Kyiv Metro
  6. Prague Metro
  7. Vienna U-Bahn
France
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This section contains 3 articles.

  1. Lyon Metro
  2. Paris Métro
  3. Réseau Express Régional
Germany
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This section contains 3 articles.

  1. Berlin U-Bahn
  2. Munich U-Bahn
  3. S-Bahn
Italy
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This section contains 2 articles.

  1. Milan Metro
  2. Rome Metro
Netherlands
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This section contains 2 articles.

  1. Amsterdam Metro
  2. Rotterdam Metro
Russia
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This section contains 2 articles.

  1. Moscow Metro
  2. Saint Petersburg Metro
Scandinavia
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This section contains 4 articles.

  1. Copenhagen Metro
  2. Helsinki Metro
  3. Oslo Metro
  4. Stockholm Metro
Spain
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This section contains 2 articles.

  1. Barcelona Metro
  2. Madrid Metro
United Kingdom
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This section contains 1 article.

  1. London Underground (Level 4)

High-speed rail

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This section contains 11 articles.

  1. Acela
  2. AVE
  3. China Railway High-speed
  4. Eurostar
  5. Frecciarossa
  6. Intercity Express
  7. Korea Train Express
  8. Shinkansen (Level 4)
  9. Taiwan High Speed Rail
  10. TGV
  11. Sapsan

Railway lines

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This section contains 4 articles.

  1. Trans-Australian Railway
  2. Chinese Eastern Railway
  3. Trans-Mongolian Railway
  4. Trans-Siberian Railway (Level 4)

Railway services

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This section contains 1 article.

  1. Orient Express


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