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.
Articles in the Vital list have their assessments labelled as:
- Featured articles
- Former featured articles
- A-class articles
- Good articles
- Delisted good articles
- Failed good article nominees
- B-class articles
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- Stub-class articles
- List-class articles
- Unassessed articles
The progress bar is auto-updated via category count, and the symbols and article counts are updated daily by User:cewbot. Please read the FAQ before modifying the article list.
Quota 3,200 articles.
Total 3,241 articles.
Class | #Articles |
---|---|
FA | 20 |
GA | 77 |
A | 2 |
B | 690 |
C | 1,560 |
LIST | 9 |
FFA | 57 |
DGA | 77 |
Start | 833 |
Stub | 52 |
General
editThis section contains 89 articles.
- Technology (Level 1)
- Applied science
- Appropriate technology
- Emerging technologies
- Innovation
- Invention
- Maintenance
- Miniaturization
- Problem solving
- Research and development
- Scientific instrument
- Simulation
- Technological convergence
- Technological determinism
- Technology adoption life cycle
- Technology and society
- Technology assessment
- Technology life cycle
- 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
editThis section contains 70 articles.
Basics
editThis section contains 19 articles.
- Engineering (Level 2)
- Nanotechnology (Level 4)
- Nuclear technology (Level 4)
- Technical drawing (Level 4)
- Engineering ethics
- Risk management
- Engineering management
- Engineering design process
- Computer-aided design
- Engineering economics
- Engineering statistics
- Engineering research
- Reverse engineering
- Engineering studies
Disciplines
editThis section contains 51 articles.
- Agricultural engineering
- Applied mechanics
- Biological engineering
- Ceramic engineering
- Chemical engineering (Level 4)
- Civil engineering (Level 3)
- Electrical engineering (Level 4)
- Energy engineering
- Engineering physics
- Industrial engineering (Level 4)
- Mechanical engineering (Level 3)
- Military engineering (Level 4)
- Sanitary engineering
- Security engineering
- Software engineering (Level 4)
- Structural analysis
- Systems engineering
Agriculture
editThis 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
editThis section contains 11 articles.
Academic disciplines
editThis section contains 11 articles.
- Agricultural science (Level 4)
- Agricultural chemistry
- Agricultural economics
- Agricultural philosophy
- Agricultural soil science
- Agroecology
- Agricultural policy
- Agricultural geography
- Agricultural education
- Agrometeorology
- Also see Agricultural engineering in the Engineering section
Forms
editThis section contains 49 articles.
Agriculture
editThis section contains 38 articles.
- Beekeeping (Level 4)
- Cuniculture
- Dairy (Level 4)
- Dryland farming
- Desert farming
- Heliciculture
- Rainfed agriculture
- Extensive farming
- Gardening (Level 4)
- Intensive farming (Level 4)
- Mechanised agriculture
- Orchard (Level 4)
- Organic farming (Level 4)
- Genetically modified crops
- Sustainable agriculture (Level 4)
- Permaculture
- Subsistence agriculture (Level 4)
- Urban agriculture (Level 4)
- Pastoralism
- Plantation
- Shifting cultivation
- Regenerative agriculture
- Animal-free agriculture
- Intensive animal farming
- Free range
- Hydroponics
- Sericulture
- Viticulture
- Fungiculture
- Olericulture
- Slash-and-burn
- Vertical farming
- Polyculture
- Sharecropping
- Tenant farmer
Aquaculture
editThis section contains 11 articles.
Pest and disease control
editThis section contains 26 articles.
- Aerial application
- Acaricide
- Agrochemical
- Agent Orange
- Aldrin
- Chemosterilant
- DDT
- Defoliant
- Fumigation
- Fungicide
- Herbicide
- Insecticide
- Lindane
- Malathion
- Methoxychlor
- Pest (organism)
- Pest control
- Pesticide (Level 4)
- Rodenticide
- Scarecrow
- Smother crop
- Soil steam sterilization
- Tetraethyl pyrophosphate
- Toxaphene
Buildings and infrastructure
editThis section contains 29 articles.
Animal husbandry
editThis section contains 21 articles.
Agronomy
editThis section contains 29 articles.
Basics
editThis section contains 4 articles.
Agronomical techniques
editThis section contains 15 articles.
- Nutrient management
- Fertilizer (Level 3)
- Harvest (Level 4)
- Irrigation (Level 4)
- Tillage (Level 4)
- Silage
- Sowing
- Postharvest
Soil and soil management
editThis section contains 10 articles. See "Pedology" in Earth Science
Horticulture
editThis section contains 22 articles.
- Horticulture (Level 4)
- Espalier
- Floriculture
- Grafting
- Layering
- Plant propagation
- Pollarding
- Pollination management
- Pruning
- Smudge pot
- Topiary
- Transplanting
- Basal shoot
- Pomology
- Companion planting
- Genetically modified tree
- Indigenous horticulture
- Urban horticulture
- Hardiness (plants)
- Drought tolerance
- Tropical horticulture
Hunting and fishing
editThis section contains 18 articles.
Trees and forestry
editThis section contains 6 articles.
Agriculture, labor and economy
editThis section contains 8 articles.
Agriculture and ecology
editThis section contains 3 articles.
Agricultural machinery and tools
editSee "Agricultural tools" and "Farm and Garden Machinery" in Technology : Machinery and tools
Biotechnology
editThis section contains 45 articles. See also : Selective Breeding in Agriculture; Fermentation in Biology
- Biotechnology (Level 3)
- Cell culture
- Genetic engineering (Level 3)
- Recombinant DNA
- Cloning (Level 4)
- Gel electrophoresis (Level 4)
- Polymerase chain reaction (Level 4)
- Western blot
- Cyborg
- Whole genome sequencing
- Tissue engineering
- Biochip
- De-extinction
- Genome editing
- Nuclear transfer
- Pharming (genetics)
- Biomimetics
- DNA microarray
- Micropropagation
- Biological hazard
- Bioterrorism
- Pharmacogenomics
- Biopharmaceutical
- Genetic testing
- Synthetic biopolymer
- Biomaterial
- Agricultural biotechnology
- Environmental biotechnology
- Bioreactor
- Gene therapy
- Stem-cell therapy
- Antisense therapy
- Organ printing
- Protein engineering
- Activated sludge
- Anaerobic digestion
- Bioleaching
- Biomining
- Somatic fusion
Communication, media, and computing technology
editThis section contains 739 articles. For abstract topics in computer science, see Mathematics: Theoretical computer science (Level 5)
Computing and information technology basics
editThis section contains 12 articles.
Computer science
editThis section contains 16 articles.
- Computer science (Level 3)
- Artificial intelligence (Level 3)
- Computer architecture (Level 4)
- Computer simulation (Level 4)
- Parallel computing (Level 4)
- Augmented reality
- Mixed reality
- Virtual reality
- Concurrent computing
- Floating-point arithmetic
- Real-time computing
- Computer graphics (computer science)
Computer architecture concepts
editThis section contains 27 articles.
- Cache (computing)
- Cache coherence
- Distributed computing
- Cloud computing
- Optical computing
- DNA computing
- Quantum computing
- Von Neumann architecture
- 8-bit computing
- 16-bit computing
- 32-bit computing
- 64-bit computing
- Endianness
- Multithreading (computer architecture)
- Multiprocessing
- Instruction set architecture
- System time
Computer security
editThis section contains 40 articles.
Computer hardware
editThis section contains 83 articles.
- Computer hardware (Level 4)
- Computer (Level 2)
- Booting
- Processor (computing)
- Motherboard
- Processor register
- Floating-point unit
- Graphics processing unit
- Arithmetic logic unit
- Digital signal processor
- Bus (computing)
- Expansion card
- Modem
- Device driver
- Intel High Definition Audio
- Moore's law
- Clock rate
- Embedded system
- Real-time clock
- Computer case
- Computer cooling
- Analog computer
- Stored-program computer
- Hardware acceleration
- Plug and play
- Input device
- Output device
User interface
editThis section contains 25 articles.
Computer software
editThis section contains 38 articles.
- Software (Level 4)
- Application software
- Chatbot
- Database (Level 4)
- Emulator
- Media player software
- Mobile app
- Open-source software (Level 4)
- Spreadsheet (Level 4)
- System software
- Web application
- Web browser (Level 4)
- Word processor (Level 4)
- Desktop publishing
- Plug-in (computing)
- POSIX
- GNU Project
- Input method
Operating systems
editThis section contains 16 articles.
Data storage and memory
editThis section contains 77 articles.
For units of information (bit, byte, megabyte, etc.), see Physical sciences/Basics and measurement
- Computer file (Level 4)
- Backup
- Barcode (Level 4)
- File system (Level 4)
- Directory (computing)
- Filename extension
- Data storage (Level 4)
- RAID
- Disk partitioning
- Computer memory
- Binary file
- Text file
File format
editThis section contains 26 articles.
- File format
- Archive file
- Document file format
- Image file format
- Audio coding format
- Video coding format
- Container format
Volatile memory
editThis section contains 5 articles.
Non-volatile memory
editThis section contains 23 articles.
Networks
editThis section contains 73 articles.
- Computer network (Level 4)
- Email (Level 4)
- Ethernet (Level 4)
- Router (computing) (Level 4)
- Routing
- Wi-Fi (Level 4)
- Bluetooth
- Cellular network
- Server (computing)
- Client–server model
- Network topology
- Network switch
- Network packet
- Network interface controller
- Node (networking)
- Internet of things
- Wireless mesh network
- Content delivery network
- Private network
- Subnet
- Tunneling protocol
- Reverse proxy
Internet
editThis section contains 44 articles. For Internet culture, see Society and social sciences/Culture#Internet medium
- Internet (Level 3)
- ARPANET
- CSS
- Communication protocol
- Common Gateway Interface
- Domain name
- File Transfer Protocol
- Hashtag
- HTML (Level 4)
- HTTP (Level 4)
- Instant messaging
- Internet protocol suite (Level 4)
- Internet service provider
- Peer-to-peer file sharing
- Social media (Level 4)
- Web 2.0
- Search engine (Level 4)
- Tor (network)
- Website (Level 4)
- World Wide Web (Level 4)
Specific websites and other computing services
editThis section contains 50 articles.
Cloud server
editThis section contains 2 articles.
Multimedia
editThis section contains 5 articles.
E-commerce
editThis section contains 3 articles.
Portals/Platform sites
editThis section contains 3 articles.
Utility
editThis section contains 6 articles.
Science
editThis section contains 1 article.
Search engines
editThis section contains 2 articles.
Social network and blogging
editThis section contains 28 articles.
Software development
editThis section contains 122 articles.
Software development: General
editThis section contains 63 articles.
- Software development
- Software prototyping
- Reusability
- Software portability
- Transparency (human–computer interaction)
- Library (computing)
- Formal specification
- Formal verification
- Software design
- Abstraction (computer science)
- Variable (computer science)
- Function (computer programming)
- Pointer (computer programming)
- Recursion (computer science)
- Iteration
- Computer programming (Level 4)
- Flowchart
- Source code
- Bytecode
- Object code
- Executable
- Parameter (computer programming)
- Collation
- Universal Product Code
- Character encoding (Level 4)
- Error correction code
- Compiler (Level 4)
- Interpreter (computing)
- Control flow
- Macro (computer science)
- Regular expression
- Calling convention
- Programming language (Level 4)
- Programming paradigm (Level 4)
- API
- Software testing
- Software bug
- Debugging
- Application checkpointing
- Exception handling
- Version control
- Patch (computing)
- Software maintenance
- Software documentation
Programming languages
editThis section contains 41 articles.
- Syntax (programming languages)
- Metasyntax
- Backus–Naur form
- Type conversion
- Data type
- Delimiter
- Operator overloading
- Language binding
- Low-level programming language
- High-level programming language
- C (programming language) (Level 4)
- C++
- C Sharp (programming language)
- Objective-C
- Delphi (software)
- Haskell
- Java (programming language) (Level 4)
- Kotlin (programming language)
- Lisp (programming language)
- Lua (programming language)
- Scala (programming language)
- Swift (programming language)
- Visual Basic (.NET)
- Shading language
- R (programming language)
Data modeling languages
editThis section contains 1 article.
Markup languages
editThis section contains 1 article.
Scripting languages
editThis section contains 6 articles.
- Python (programming language)
- Ruby (programming language)
- PHP
- Perl
- JavaScript (Level 4)
- Shell script
"Historical" languages
editThis section contains 6 articles.
Artificial intelligence concepts
editThis section contains 18 articles.
- AI alignment
- Artificial general intelligence
- Neural network (machine learning)
- Computer chess
- Computer Go
- Computer vision
- Existential risk from artificial intelligence
- Generative artificial intelligence
- Large language model
- Machine learning
- Natural language processing
- Philosophy of artificial intelligence
- Technological singularity
- Turing test
- Weak artificial intelligence
Other media and communication technology
editThis section contains 109 articles.
See also Arts: Literature; Society: Mass media
Physical and analog media are also included here
- Broadcasting (Level 3)
- Bulletin board
- Audiobook
- Communications satellite (Level 4)
- Display device
- Document
- Ebook
- Image (Level 4)
- Image scanner (Level 4)
- Mail (Level 3)
- Manuscript
- Portable media player
- Printing (Level 3)
- Radio (Level 3)
- Smartwatch
- Sound recording and reproduction (Level 4)
- Speech synthesis (Level 4)
- Telecommunications (Level 3)
- Television (Level 3)
- Typewriter (Level 4)
- Video (Level 4)
- Wireless
Specific hardware
editThis section contains 34 articles.
See also video game hardware section under games for early Home Computers
- Amazon Kindle
- Amiga
- Arduino
- Chromebook
- Commodore 64
- Deep Blue (chess computer)
- iPad
- iPhone (Level 4)
- iPod
- Mac (computer) (Level 4)
- PC-98
- Raspberry Pi
- Samsung Galaxy
- Walkman
- ZX Spectrum
Early computers
editThis section contains 18 articles.
Specific software
editThis section contains 58 articles.
Artificial Intelligence
editThis section contains 2 articles.
Browsers
editThis section contains 5 articles.
Communication
editThis section contains 2 articles.
Development
editThis section contains 2 articles.
Multimedia
editThis section contains 9 articles.
Office and data management
editThis section contains 11 articles.
Operating Systems
editThis section contains 19 articles.
- Android (operating system) (Level 4)
- iOS
- DOS
- Mac operating systems
- Microsoft Windows (Level 4)
- Symbian
- Unix (Level 4)
- Unix-like
Science and Engineering
editThis section contains 2 articles.
System
editThis section contains 3 articles.
Virtualization
editThis section contains 3 articles.
Electronics
editThis section contains 116 articles. For topics in electromagnetism, see Physics:Electromagnetism
Electronics: General
editThis section contains 9 articles.
Components
editThis section contains 36 articles.
- Electronic component
- Amplifier (Level 4)
- Capacitor (Level 4)
- Diode (Level 4)
- Electrical connector (Level 4)
- Inductor (Level 4)
- Power supply (Level 4)
- Resistor (Level 4)
- Switch (Level 4)
- Transducer
- Transformer (Level 4)
Consumer electronics
editThis section contains 3 articles.
Digital logic
editThis section contains 16 articles.
Functional circuits
editThis section contains 14 articles.
- Bridge circuit
- Electronic oscillator
- Frequency mixer
- Gyrator
- Negative impedance converter
- Power inverter
- Rectifier
- Voltage regulator
Semiconductors
editThis section contains 14 articles.
Signal processing
editThis section contains 17 articles.
- Signal processing (Level 4)
- Analog-to-digital converter
- Digital-to-analog converter
- Filter (signal processing) (Level 4)
- Multiplexing
- Noise (electronics)
- Oscilloscope (Level 4)
- Sampling (signal processing)
Signal transmission
editThis section contains 7 articles.
Energy
editThis section contains 173 articles.
Energy: General
editThis section contains 5 articles.
Fuel
editThis section contains 25 articles.
- Fuel (Level 4)
- Biofuel (Level 4)
- Fossil fuel (Level 3)
- Hydrogen economy
- Oil refinery (Level 4)
- Nuclear fuel
Heating and cooling
editThis section contains 12 articles.
- Heating, ventilation, and air conditioning (Level 4)
- Air conditioning (Level 4)
- Boiler
- Fan (machine)
- Heat exchanger
- Refrigeration (Level 3)
Lighting
editThis section contains 13 articles.
Power generation
editThis section contains 41 articles.
- Power station (Level 4)
- Hydropower (Level 3)
- Microgeneration
- Nuclear power (Level 3)
- Solar energy (Level 3)
- Thermal power station
- Turbine (Level 4)
- Wind power (Level 3)
Power storage
editThis section contains 14 articles.
Power transmission
editThis section contains 60 articles. See also: Electromagnetism and Electromagnetism
- AC power plugs and sockets
- Electric power transmission (Level 4)
- Electric power distribution (Level 4)
- Electrical grid (Level 4)
- Electrical wiring (Level 4)
- Mains electricity
Concepts
editThis section contains 21 articles.
- Availability factor
- Automatic generation control
- Backfeeding
- Base load
- Capacity factor
- Demand factor
- Droop speed control
- Energy demand management
- Energy return on investment
- Electrical fault
- Grid code
- Load factor (electrical)
- Load-following power plant
- Merit order
- Nameplate capacity
- Peak demand
- Electric power quality
- Power-flow study
- Repowering
- Utility frequency
- Variable renewable energy
Electricity transmission and distribution
editThis section contains 20 articles.
- Demand response
- Distributed generation
- Distribution board
- Dynamic demand (electric power)
- Electrical busbar system
- Electric power system
- Interconnector
- High-voltage direct current
- Load management
- Mains electricity by country
- Overhead power line
- Smart grid
- Substation
- Super grid
- Transmission system operator
- Transmission tower
- Utility pole
- Wide area synchronous grid
Electrical protective devices
editThis section contains 10 articles.
- Arc-fault circuit interrupter
- Circuit breaker (Level 4)
- Earth-leakage circuit breaker
- Fuse (electrical) (Level 4)
- Lightning rod
- Residual-current device
- Power system protection
- Protective relay
- Numerical relay
- Sulfur hexafluoride circuit breaker
Specific energy structure
editThis section contains 3 articles. See "Dams" section in "Specific infrastructure" for hydroelectric power plants
Industry
editThis section contains 216 articles. See also: "Industry" in Business and economics (Level 4)
Industry: General
editThis section contains 17 articles.
Food, water and health
editThis section contains 34 articles.
- Air purifier
- Bleach (Level 4)
- Desalination (Level 4)
- Detergent (Level 4)
- Laundry (Level 4)
- Food additive
- Food processing
- Food storage
- Oxygen mask
- Sanitation (Level 3)
- Soap (Level 4)
- Sterilization (microbiology)
- Water supply network (Level 4)
Materials
editThis section contains 45 articles.
- Abrasive (Level 4)
- Ceramic (Level 4)
- Chemical vapor deposition
- Cork (material)
- Glass (Level 3)
- Gutta-percha
- Leather (Level 4)
- Mineral wool
- Natural rubber (Level 3)
- Paper (Level 3)
- Plastic (Level 3)
Chemicals
editThis section contains 8 articles.
- Adhesive (Level 4)
- Chemical plant (Level 4)
- Composite material (Level 4)
- Explosive (Level 3)
- Lubricant
- Petrochemical (Level 4)
Metallurgy
editThis section contains 48 articles.
- Metallurgy (Level 3)
- Extractive metallurgy
- Metalworking (Level 4)
- Anvil
- Bellows
- Bending (metalworking)
- Metal casting
- Drawing (manufacturing)
- Electrical discharge machining
- Extrusion (Level 4)
- Forge
- Forging (Level 4)
- Grinding (abrasive cutting)
- Heat treating (Level 4)
- Laser cutting (Level 4)
- Machining
- Metal fabrication
- Plating
- Precipitation hardening
- Quenching
- Rolling (metalworking) (Level 4)
- Sheet metal
- Sintering
- Soldering (Level 4)
- Steelmaking (Level 4)
- Welding (Level 4)
- Work hardening
Textiles
editThis section contains 64 articles.
Fabrics and fibers
editThis section contains 22 articles.
- Canvas (Level 4)
- Carbon fibers
- Cotton (Level 3)
- Felt (Level 4)
- Flannel
- Fiber (Level 4)
- Jute
- Kevlar
- Lace (Level 4)
- Linen (Level 4)
- Polyester (Level 4)
- Rayon
- Silk (Level 4)
- Spandex
- Thread (yarn) (Level 4)
- Wool (Level 4)
- Yarn (Level 4)
Other techniques
editThis section contains 12 articles.
- Basket weaving (Level 4)
- Crochet (Level 4)
- Dyeing (Level 4)
- Embroidery (Level 4)
- Knitting (Level 4)
- Macramé
- Textile printing
- Quilting (Level 4)
- Sewing (Level 4)
Spinning
editThis section contains 12 articles.
- Hand spinning (Level 4)
- Open-end spinning
- Spinning (polymers)
- Ring spinning
- Spinning frame
- Spinning jenny
- Spinning mule
- Spinning wheel
Weaving
editThis section contains 16 articles.
Infrastructure
editThis section contains 237 articles. See also Arts: Architecture
Basics
editThis section contains 2 articles.
Building materials
editThis section contains 42 articles.
- Brick (Level 4)
- Cement (Level 4)
- Concrete (Level 3)
- Masonry (Level 3)
- Quarry (Level 4)
- Scaffolding (Level 4)
- Adobe
- Construction aggregate
- Clapboard
- Mortar (masonry)
- Lath and plaster
- Drywall
- Rammed earth
- Roof shingle
- Siding (construction)
- Stone slab
- Tile
- Wattle and daub
- Wood (Level 3)
Environmental remediation
editThis section contains 9 articles.
Infrastructure by type
editThis section contains 100 articles.
Architectural elements
editThis section contains 21 articles.
- Arch (Level 4)
- Buttress
- Ceiling (Level 4)
- Column (Level 4)
- Dome (Level 4)
- Door (Level 4)
- Elevator (Level 4)
- Escalator
- Façade (Level 4)
- Floor (Level 4)
- Foundation (engineering) (Level 4)
- Ladder (Level 4)
- Lighting (Level 4)
- Pier (architecture)
- Roof (Level 4)
- Room (Level 4)
- Stairs (Level 4)
- Vault (architecture)
- Wall (Level 4)
- Window (Level 4)
Coastal infrastructure
editThis section contains 10 articles.
Ceremonial buildings
editThis section contains 2 articles.
Commercial buildings
editThis section contains 3 articles.
Mixed-use buildings
editThis section contains 4 articles.
Residential buildings and housing units
editThis section contains 10 articles.
Rooms and spaces
editThis section contains 20 articles.
- Attic
- Balcony
- Basement
- Bathroom (Level 4)
- Bedroom (Level 4)
- Courtyard
- Dining room
- Garage (residential) (Level 4)
- Hall
- Kitchen (Level 4)
- Laundry room
- Living room
- Lobby (room)
- Porch
- Patio
- Sauna (Level 4)
- Study (room)
- Sunroom
Portable buildings and shelters
editThis section contains 2 articles.
Earthworks
editThis section contains 3 articles.
Fire protection
editThis section contains 3 articles.
Hydraulic infrastructure
editThis section contains 10 articles.
- Cistern
- Dam (Level 3)
- Drainage (Level 4)
- Dredging
- Flood management (Level 4)
- Levee (Level 4)
- Reservoir (Level 4)
Transport infrastructure
editThis section contains 12 articles. See also #Transportation section
Specific infrastructure
editThis section contains 84 articles.
See "Transportation" and "Energy" section for infrastructure in respective discipline
Dams
editThis section contains 26 articles.
- Aswan Dam (Level 4)
- Grand Coulee Dam
- Grand Ethiopian Renaissance Dam
- Hoover Dam (Level 4)
- Itaipu Dam (Level 4)
- Tarbela Dam
- Three Gorges Dam (Level 4)
- Akosombo Dam
- Atatürk Dam
- Bratsk Hydroelectric Power Station
- Cahora Bassa
- Cofferdam
- New Croton Dam
- Delta Works
- Tabqa Dam
- Fort Peck Dam
- Grande Dixence Dam
- Guri Dam
- Enguri Dam
- Kariba Dam
- Mangla Dam
- Nurek Dam
- Oroville Dam
- Rogun Dam
- Sup'ung Dam
- Vajont Dam
Bridges
editThis section contains 48 articles.
- Akashi Kaikyo Bridge (Level 4)
- Alcántara Bridge
- Astoria–Megler Bridge
- Auckland Harbour Bridge
- Banpo Bridge
- Bosphorus Bridge
- Bridge of Sighs
- Bridge of the Americas
- Britannia Bridge
- Brooklyn Bridge (Level 4)
- Charles Bridge
- Confederation Bridge
- Danyang–Kunshan Grand Bridge
- El Ferdan Railway Bridge
- Forth Bridge
- Gateshead Millennium Bridge
- George Washington Bridge
- Golden Gate Bridge (Level 4)
- Great Belt Bridge
- Great Seto Bridge
- Humber Bridge
- Qingdao Jiaozhou Bay Bridge
- Kapellbrücke
- London Bridge
- Mackinac Bridge
- Manhattan Bridge
- Mehmed Paša Sokolović Bridge
- Menai Bridge
- Millau Viaduct
- Minneapolis Skyway System
- Pont Alexandre III
- Pont du Gard
- Pont Neuf
- Ponte Sant'Angelo
- Ponte Vecchio
- Rainbow Bridge (Niagara Falls)
- Rainbow Bridge (Tokyo)
- Rialto Bridge
- San Francisco–Oakland Bay Bridge
- Si-o-se-pol
- Stari Most
- Sydney Harbour Bridge
- Tacoma Narrows Bridge
- The Iron Bridge
- Tower Bridge (Level 4)
- Trajan's Bridge
- Vasco da Gama Bridge
- Verrazzano-Narrows Bridge
Tunnels
editThis section contains 3 articles.
Multi-modal crossings
editThis section contains 5 articles.
- Bering Strait crossing
- Chesapeake Bay Bridge–Tunnel
- Hong Kong–Zhuhai–Macau Bridge
- Tokyo Bay Aqua-Line
- Øresund Bridge
Others
editThis section contains 2 articles.
Machinery and tools
editThis section contains 294 articles.
Machinery and tools: General
editThis section contains 11 articles.
Engines
editThis section contains 11 articles.
- Engine (Level 3)
- Electric motor (Level 3)
- Internal combustion engine (Level 3)
- Steam engine (Level 3)
Hydraulics and pneumatics
editThis section contains 26 articles.
Machinery
editThis section contains 63 articles.
Farm and garden machinery
editThis section contains 16 articles.
- Baler
- Chainsaw (Level 4)
- Combine harvester (Level 4)
- Corn harvester
- Cotton gin (Level 4)
- Cotton picker
- Cultivator (Level 4)
- Irrigation sprinkler (Level 4)
- Lawn mower (Level 4)
- Planter (farm implement)
- Reaper
- Reaper-binder
- Seed drill
- Swather
- Threshing machine
- Transplanter
Household appliances
editThis section contains 35 articles.
- Home appliance (Level 4)
- Major appliance
- Barbecue grill
- Blender
- Clothes dryer (Level 4)
- Coffeemaker
- Dishwasher (Level 4)
- Furnace (central heating) (Level 4)
- Hair dryer
- Hair iron
- Humidifier
- Ironing (Level 4)
- Juicer
- Lock and key (Level 4)
- Microwave oven (Level 4)
- Mixer (appliance)
- Oven (Level 3)
- Refrigerator (Level 4)
- Rice cooker
- Sewing machine (Level 4)
- Slow cooker
- Stove (Level 4)
- Vacuum cleaner (Level 4)
- Washing machine (Level 4)
- Water dispenser
- Water heating
Industrial machinery
editThis section contains 12 articles.
- Centrifuge (Level 4)
- Crane (machine) (Level 4)
- Forklift
- Mill (grinding)
- Machine tool
- Potter's wheel (Level 4)
- Trip hammer
Mechanisms
editThis section contains 61 articles.
Flexible components
editThis section contains 15 articles.
Rigid components
editThis section contains 20 articles.
Simple mechanisms
editThis section contains 25 articles.
Tools
editThis section contains 122 articles.
Agricultural tools
editThis section contains 15 articles.
- Archimedes' screw (Level 4)
- Flail
- Harrow (tool) (Level 4)
- Hoe (tool) (Level 4)
- Machete (Level 4)
- Mattock
- Pitchfork
- Plough (Level 4)
- Rake (tool) (Level 4)
- Roller (agricultural tool)
- Scythe
- Sickle (Level 4)
- Shadoof
- Shovel (Level 4)
- Wheelbarrow (Level 4)
Artist's and drafting tools
editThis section contains 16 articles.
- Compass (drawing tool)
- Colored pencil
- Crayon
- Drafting machine
- Drawing board
- Easel
- French curve
- Modelling clay (Level 4)
- Paint (Level 4)
- Brush (Level 4)
- Pastel (Level 4)
- Pigment (Level 4)
- T-square
Containers
editThis section contains 20 articles.
- Container (Level 4)
- Aluminum can
- Bag
- Barrel
- Basket
- Bottle
- Box
- Envelope
- Intermodal container
- Packaging
- Paper cup
- Pressure vessel
- Steel and tin cans
Hand tools
editThis section contains 15 articles.
- Adze
- Axe (Level 4)
- Chalk line
- Chisel (Level 4)
- Clamp (tool) (Level 4)
- Crowbar
- Drilling (Level 4)
- Hammer (Level 4)
- Hook (hand tool)
- Plane (tool) (Level 4)
- Pliers
- Saw (Level 4)
- Scissors (Level 4)
- Screwdriver
- Wrench
Measuring instruments
editThis section contains 21 articles.
Surveying tools
editThis section contains 20 articles.
- Alidade
- Circumferentor
- Graphometer
- Gunter's chain
- Laser rangefinder
- Level (optical instrument)
- Plane table
- Reticle
- Stadimeter
- Surveyor's wheel
- Theodolite (Level 4)
Writing tools
editThis section contains 11 articles.
Medical technology
editThis section contains 43 articles.
Diagnostic technologies
editThis section contains 4 articles.
Imaging
editThis section contains 6 articles.
- Medical imaging (Level 3)
- CT scan
- Magnetic resonance imaging (Level 4)
- Medical ultrasound (Level 4)
- Positron emission tomography
- Radiography (Level 4)
Devices
editThis section contains 15 articles.
- Artificial cardiac pacemaker
- Artificial organ (Level 4)
- Catheter
- Cervical collar
- Dentures (Level 4)
- Hearing aid
- Orthopedic boot
- Orthopedic cast
- Prosthesis (Level 4)
- Reflex hammer
- Sling (medicine)
- Splint (medicine)
- Stethoscope (Level 4)
- Tourniquet
- Ventilator
Equipment
editThis section contains 7 articles.
- Adhesive bandage
- Bandage (Level 4)
- Dressing (medicine)
- Hypodermic needle
- Retainer (orthodontics)
- Stretcher
- Syringe (Level 4)
Mobility aids
editThis section contains 2 articles.
Surgical instruments
editThis section contains 5 articles.
Techniques
editThis section contains 2 articles.
Transport
editThis section contains 2 articles.
Military technology
editThis section contains 302 articles.
Military technology: General
editThis section contains 8 articles.
Countermeasures
editThis section contains 27 articles.
Armour
editThis section contains 11 articles.
Fortification
editThis section contains 14 articles.
Melee weapons
editThis section contains 40 articles.
Knives
editThis section contains 10 articles.
- Bayonet (Level 4)
- Knife (Level 3)
- Dagger (Level 4)
- Hunting knife
- Pocketknife
- Throwing knife
- Utility knife
Polearms
editThis section contains 8 articles.
Swords
editThis section contains 12 articles.
- Sword (Level 4)
- Claymore
- Cutlass
- Dao (Chinese sword)
- Gladius
- Katana (Level 4)
- Longsword
- Rapier (Level 4)
- Sabre
- Scimitar
- Talwar
- Wakizashi
Ranged weapons
editThis section contains 107 articles.
Archery
editThis section contains 11 articles.
Artillery
editThis section contains 13 articles.
Firearms
editThis section contains 64 articles.
Ammunition
editThis section contains 15 articles.
- Ammunition (Level 4)
- Gunpowder (Level 3)
- Bullet
- Flechette
- Cartridge (firearms)
- Shotgun cartridge
- Shotgun slug
Mechanisms
editThis section contains 19 articles.
Specific cartridges
editThis section contains 2 articles.
Specific firearms
editThis section contains 11 articles.
- AK-47
- AR-15–style rifle
- Chassepot
- Dreyse needle gun
- Gatling gun
- Glock
- IWI Tavor
- M134 Minigun
- M4 carbine
- M16 rifle
- M1911 pistol
Missiles
editThis section contains 11 articles.
Explosive weapons
editThis section contains 15 articles.
- Bomb (Level 3)
- Cluster munition (Level 4)
- Grenade (Level 4)
- Land mine (Level 4)
- Plastic explosive
- Shaped charge
- Thermobaric weapon
Incendiary weapons
editThis section contains 5 articles.
Maneuver
editThis section contains 9 articles.
Military aviation
editThis section contains 45 articles.
- Military aviation
- Military aircraft (Level 4)
- Attack aircraft (Level 4)
- Bomber (Level 4)
- Fighter aircraft (Level 4)
- Electronic-warfare aircraft
- Maritime patrol aircraft
- Multirole combat aircraft
- Military transport aircraft
- Airborne early warning and control
- Reconnaissance aircraft
- Surveillance aircraft
- Experimental aircraft
- Aerial refueling
Specific aircraft
editThis section contains 19 articles.
- Boeing B-29 Superfortress
- Boeing B-52 Stratofortress
- Dassault Rafale
- Embraer EMB 314 Super Tucano
- Eurofighter Typhoon
- Fairchild Republic A-10 Thunderbolt II
- General Dynamics F-16 Fighting Falcon
- Lockheed C-130 Hercules
- Lockheed SR-71 Blackbird
- Lockheed Martin F-22 Raptor
- Lockheed Martin F-35 Lightning II
- McDonnell Douglas F-15 Eagle
- McDonnell Douglas F/A-18 Hornet
- Mikoyan-Gurevich MiG-21
- North American P-51 Mustang
- Northrop B-2 Spirit
- Panavia Tornado
- Rockwell B-1 Lancer
Naval warfare
editThis section contains 20 articles.
- Warship (Level 4)
- Submarine (Level 4)
- Boom (navigational barrier)
- Depth charge
- Naval mine (Level 4)
- Torpedo (Level 4)
Less-lethal weapons
editThis section contains 14 articles.
- Non-lethal weapon
- Active Denial System
- Baton round
- Sonic weapon
- Stun grenade
- Taser
- Tear gas
- Water cannon
Weapon of mass destruction
editThis section contains 12 articles.
Navigation and timekeeping
editThis section contains 88 articles. For units of time (hour, day, etc.), see Physical sciences – Measurement. For maps and cartography, see Geography – Physical geography.
Navigation
editThis section contains 24 articles.
- Navigation (Level 3)
- Compass (Level 3)
- Cardinal direction (Level 4)
- Celestial navigation (Level 4)
- Dead reckoning (Level 4)
- Gyroscope (Level 4)
- Satellite navigation (Level 4)
- Radar (Level 3)
- Sonar
Timekeeping
editThis section contains 64 articles.
- Astronomical year numbering
- Calendar (Level 3)
- Clock (Level 3)
- Leap year (Level 4)
- Leap second
- Future
- Present
- Past
- Standard time
- Timeline
- Time standard
- Time zone (Level 4)
Calendars
editThis section contains 12 articles.
Clocks
editThis section contains 16 articles.
- 12-hour clock
- 24-hour clock
- Alarm clock
- Atomic clock (Level 4)
- Digital clock
- Clock face
- Hourglass
- Marine chronometer
- Pendulum clock
- Quartz clock
- Sundial (Level 4)
- Watch (Level 4)
- Water clock
Months
editThis section contains 12 articles.
Days of the week
editThis section contains 8 articles.
Optical technology
editThis section contains 60 articles.
Optical components
editThis section contains 15 articles.
- Lens (Level 3)
- Collimator
- Diffraction grating (Level 4)
- Mirror (Level 4)
- Optical coating
- Optical fiber (Level 4)
- Optical filter
- Optical isolator
- Polarizer (Level 4)
- Prism (optics) (Level 4)
Optical instruments
editThis section contains 16 articles.
- Autocollimator
- Binoculars (Level 4)
- Glasses (Level 4)
- Interferometry (Level 4)
- Loupe
- Magnifying glass
- Microscope (Level 3)
- Periscope
- Projector
Lasers
editThis section contains 9 articles.
Photography
editThis section contains 20 articles.
Astronomical technology
editThis section contains 71 articles.
Telescope
editThis section contains 67 articles.
- Telescope (Level 3)
- Reflecting telescope
- Refracting telescope
- X-ray telescope
- Optical telescope (Level 4)
- Infrared telescope
- Radio telescope (Level 4)
- Solar telescope
- Space telescope
- Astronomical interferometer
- Telescope mount
- Active optics
- Adaptive optics
- Eyepiece
- Astronomical filter
- Primary mirror
- Gravitational-wave observatory
Space-based observatories
editThis section contains 15 articles.
- Hubble Space Telescope (Level 4)
- Spitzer Space Telescope
- Herschel Space Observatory
- INTEGRAL
- Fermi Gamma-ray Space Telescope
- James Webb Space Telescope
- Wide-field Infrared Survey Explorer
- IRAS
- Chandra X-ray Observatory
- Kepler
- GALEX
- Hipparcos
- Gaia (spacecraft)
- XMM-Newton
- ROSAT
Ground-based observatories
editThis section contains 26 articles.
- Atacama Large Millimeter Array (Level 4)
- Mauna Kea Observatories (Level 4)
- Gemini Observatory
- Five-hundred-meter Aperture Spherical Telescope
- LIGO
- Virgo interferometer
- IceCube Neutrino Observatory
- Very Large Telescope
- Large Binocular Telescope
- Mount Wilson Observatory
- Very Large Array
- Very Long Baseline Array
- Arecibo Observatory
- Green Bank Telescope
- Effelsberg 100-m Radio Telescope
- Low-Frequency Array
- MeerKAT
- Square Kilometre Array
- Extremely Large Telescope
- Wise Observatory
- South Pole Telescope
- Jodrell Bank Observatory
Space
editThis section contains 76 articles.
Basics
editThis section contains 20 articles.
- Spaceflight (Level 3)
- Spacecraft (Level 4)
- Rocket (Level 3)
- Satellite (Level 3)
- Space station (Level 3)
- Astronaut (Level 4)
- Space capsule
- Uncrewed spacecraft
- Interstellar travel
- Space colonization
- Space settlement
- Space industry
- Asteroid mining
Programs and launch sites
editThis section contains 16 articles.
- NASA (Level 4)
- Soviet space program (Level 4)
- Roscosmos (Level 4)
- European Space Agency (Level 4)
- China National Space Administration (Level 4)
- ISRO
- Israel Space Agency
- JAXA
Crewed vehicles
editThis section contains 12 articles.
- Apollo 11
- International Space Station (Level 4)
- Mir (Level 4)
- Salyut 1
- Space Shuttle (Level 4)
- Saturn V (Level 4)
- Soyuz (spacecraft) (Level 4)
- Skylab
- Tiangong space station
- Vostok 1
Unmanned spacecraft
editThis section contains 19 articles.
- Sputnik 1 (Level 4)
- Sputnik 2
- Luna 2
- Luna 3
- Mariner 2
- Luna 9
- Voyager program (Level 4)
- Pioneer program
- New Horizons
- Galileo project
- Cassini–Huygens
- Cosmic Background Explorer
- Wilkinson Microwave Anisotropy Probe
- MESSENGER
Rovers
editThis section contains 9 articles.
Transportation
editThis section contains 459 articles.
Basics
editThis section contains 20 articles.
Ground transport
editThis section contains 164 articles.
Concepts of ground transport
editThis section contains 22 articles.
- Land transport
- Breakdown (vehicle)
- Charging station
- Driving (Level 4)
- Filling station (Level 4)
- Parking (Level 4)
- Service (motor vehicle)
- Rest area
- Tire (Level 4)
- Transport hub
Road infrastructure
editThis section contains 24 articles. For bridges and tunnels, see transport infrastructure in #Infrastructure section.
- Road (Level 3)
- Footpath
- Pedestrian crossing
- Pedestrian zone
- Sidewalk
- Trail (Level 4)
- Cycling infrastructure
Motorized road transport
editThis section contains 53 articles.
- Auto rickshaw
- Bus (Level 4)
- Car (Level 3)
- Motorcycle (Level 4)
- Off-road vehicle
- Shared transport
- Truck (Level 4)
- Van (Level 4)
- Vehicle for hire
Rail and cable transport
editThis section contains 28 articles.
- Rail transport (Level 4)
- Train (Level 3)
- Cable transport (Level 4)
- High-speed rail (Level 4)
- Tram (Level 4)
- Rapid transit (Level 4)
Animal-powered transport
editThis section contains 6 articles.
Human-powered transport
editThis section contains 16 articles.
Specific-purpose transportation
editThis section contains 12 articles. For medical transport, see Medical section
Specific automobiles
editThis section contains 3 articles.
Naval transport
editThis section contains 64 articles. For military watercraft, see Military technology. For pier and port, see coastal infrastructure.
- Maritime transport (Level 4)
- Ship (Level 3)
- Watercraft
- Buoy
- Canal (Level 3)
- Barge (Level 4)
- Boat (Level 4)
- Canoe (Level 4)
- Cargo ship (Level 4)
- Ferry (Level 4)
- Fishing vessel (Level 4)
- Hospital ship
- Hovercraft (Level 4)
- Hydrofoil
- Icebreaker
- Kayak
- Merchant ship (Level 4)
- Motor ship
- Motorboat
- Multihull
- Naval architecture
- Outrigger (nautical)
- Passenger ship (Level 4)
- Personal watercraft
- Raft
- Riverboat (Level 4)
- Sail (Level 4)
- Sailboat
- Sailing ship (Level 4)
- Sailing (Level 4)
- Shipbuilding (Level 4)
- Steamboat (Level 4)
- Steamship
- Submersible
- Tanker (ship) (Level 4)
- Tugboat
Specific piers and ports
editThis section contains 13 articles.
Aviation
editThis section contains 116 articles.
Concepts of aviation
editThis section contains 11 articles.
- Aviation (Level 4)
- Aircraft (Level 3)
- Airline (Level 4)
- Airport (Level 4)
- Air traffic control (Level 4)
- Civil aviation
Types of aircraft
editThis section contains 20 articles.
Aircraft components
editThis section contains 43 articles.
Specific aircraft
editThis section contains 29 articles. For military aircraft, see Military technology
- Airbus A300
- Airbus A320 family
- Airbus A330
- Airbus A350
- Airbus A380
- Antonov An-225 Mriya
- Boeing 707
- Boeing 727
- Boeing 737
- Boeing 747
- Boeing 757
- Boeing 767
- Boeing 777
- Boeing 787 Dreamliner
- De Havilland Canada Dash 8
- Cessna 172
- Concorde
- de Havilland Comet
- Douglas DC-3
- Douglas DC-6
- Douglas DC-8
- Embraer E-Jet family
- Ilyushin Il-76
- Lockheed Constellation
- McDonnell Douglas DC-9
- McDonnell Douglas DC-10
- Mil Mi-8
- Tupolev Tu-154
- Wright Flyer
Airports
editThis section contains 13 articles.
Asia
editThis section contains 6 articles.
- Beijing Capital International Airport
- Dubai International Airport
- Haneda Airport
- Hong Kong International Airport
- Indira Gandhi International Airport
- Shanghai Pudong International Airport
Europe
editThis section contains 3 articles.
North America
editThis section contains 4 articles.
Specific transportation systems
editThis section contains 95 articles.
Ground transportation networks
editThis section contains 15 articles. See Geography/Physical for Maritime transportation network. See Society/Politic and economic for companies that operate transportation networks.
- Intercontinental and transoceanic fixed links
- Arab Mashreq International Road Network
- Asian Highway Network
- Autobahn
- Camino de Santiago
- Interstate Highway System
- Roman roads
- Trans-African Highway network
- Trans-European Transport Network
- EuroVelo
- European long-distance paths
- Transcontinental railroad
Rapid transit
editThis section contains 64 articles.
Africa
editThis section contains 1 article.
Americas
editThis section contains 13 articles.
Brazil
editThis section contains 2 articles.
Canada
editThis section contains 3 articles.
United States
editThis section contains 4 articles.
- Chicago "L"
- Massachusetts Bay Transportation Authority
- New York City Subway (Level 4)
- Washington Metro
Asia
editThis section contains 24 articles.
China
editThis section contains 6 articles.
India
editThis section contains 5 articles.
Japan
editThis section contains 6 articles.
- Hiroshima Electric Railway
- Nagoya Municipal Subway
- Osaka Metro
- Sapporo Municipal Subway
- Toei Subway
- Tokyo Metro
South Korea
editThis section contains 2 articles.
Europe
editThis section contains 26 articles.
France
editThis section contains 3 articles.
Germany
editThis section contains 3 articles.
Italy
editThis section contains 2 articles.
Netherlands
editThis section contains 2 articles.
Russia
editThis section contains 2 articles.
Scandinavia
editThis section contains 4 articles.
Spain
editThis section contains 2 articles.
United Kingdom
editThis section contains 1 article.
High-speed rail
editThis section contains 11 articles.
- Acela
- AVE
- China Railway High-speed
- Eurostar
- Frecciarossa
- Intercity Express
- Korea Train Express
- Shinkansen (Level 4)
- Taiwan High Speed Rail
- TGV
- Sapsan
Railway lines
editThis section contains 4 articles.
- Trans-Australian Railway
- Chinese Eastern Railway
- Trans-Mongolian Railway
- Trans-Siberian Railway (Level 4)
Railway services
editThis section contains 1 article.