Wikipedia:Vital articles/Level/5/Technology#Machinery and tools

{{Vital article count|66}}

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{{Vital article count|15}}

1. {{Icon|C}} Engineering (Level 2)
2. {{Icon|B}} Nanotechnology (Level 4)
3. {{Icon|C}} Molecular machine
4. {{Icon|C}} Nuclear technology (Level 4)
5. {{Icon|C}} Technical drawing (Level 4)
6. {{Icon|B}} Engineering ethics
7. {{Icon|C}} Risk management
8. {{Icon|Start}} Engineering management
9. {{Icon|Start}} Engineering design process
10. {{Icon|Start}} Requirements analysis
11. {{Icon|Start}} Problem statement
12. {{Icon|Start}} Feasibility study
13. {{Icon|C}} Computer-aided design
14. {{Icon|Start}} Engineering economics
15. {{Icon|C}} Reverse engineering

{{Vital article count|51}}

1. {{Icon|Start}} Agricultural engineering
2. {{Icon|Start}} Applied mechanics
3. {{Icon|C}} Biological engineering
4. {{Icon|Start}} Biochemical engineering
5. {{Icon|B}} Biomedical engineering (Level 4)
6. {{Icon|Start}} Pharmaceutical engineering
7. {{Icon|Start}} Ceramic engineering
8. {{Icon|C}} Chemical engineering (Level 4)
9. {{Icon|Start}} Chemical reaction engineering
10. {{Icon|C}} Nuclear engineering
11. {{Icon|C}} Molecular engineering
12. {{Icon|C}} Petroleum engineering
13. {{Icon|Start}} Process engineering
14. {{Icon|Start}} Polymer engineering
15. {{Icon|C}} Civil engineering (Level 3)
16. {{Icon|Start}} Architectural engineering (Level 4)
17. {{Icon|Start}} Construction engineering
18. {{Icon|C}} Demolition
19. {{Icon|B}} Earthquake engineering
20. {{Icon|C}} Environmental engineering
21. {{Icon|B}} Geotechnical engineering
22. {{Icon|C}} Directional drilling
23. {{Icon|C}} Hydraulic engineering
24. {{Icon|Start}} Mining engineering
25. {{Icon|B}} Structural engineering
26. {{Icon|Start}} Transportation engineering
27. {{Icon|Start}} Highway engineering
28. {{Icon|B}} {{Icon|FFA}} Electrical engineering (Level 4)
29. {{Icon|C}} Computer engineering
30. {{Icon|Start}} Energy engineering
31. {{Icon|C}} Power engineering
32. {{Icon|C}} Telecommunications engineering
33. {{Icon|C}} Electronic engineering
34. {{Icon|Start}} Control engineering
35. {{Icon|Start}} Radio-frequency engineering
36. {{Icon|Start}} Engineering physics
37. {{Icon|Start}} Industrial engineering (Level 4)
38. {{Icon|Start}} Computer-aided engineering
39. {{Icon|C}} Manufacturing engineering
40. {{Icon|B}} Mechanical engineering (Level 3)
41. {{Icon|C}} Aerospace engineering (Level 4)
42. {{Icon|Start}} Mechatronics
43. {{Icon|Stub}} Railway engineering
44. {{Icon|Start}} Marine engineering
45. {{Icon|Start}} Automotive engineering
46. {{Icon|C}} Military engineering (Level 4)
47. {{Icon|Start}} Sanitary engineering
48. {{Icon|Start}} Security engineering
49. {{Icon|C}} Software engineering (Level 4)
50. {{Icon|B}} Structural analysis
51. {{Icon|B}} Systems engineering

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=Agriculture =

{{Vital article count|235}}

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

{{Vital article count|11}}

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1. {{Icon|C}} Arable land
2. {{Icon|Start}} Crop (Level 4)
3. {{Icon|Start}} Cash crop
4. {{Icon|Start}} Nonfood crop
5. {{Icon|Start}} Fiber crop
6. {{Icon|C}} Agricultural machinery
7. {{Icon|Start}} Agricultural cycle
8. {{Icon|Start}} Growing season
9. {{Icon|Stub}} Season extension
10. {{Icon|Start}} Agricultural land
11. {{Icon|Start}} Pasture

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{{Vital article count|11}}

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1. {{Icon|B}} Agricultural science (Level 4)
2. {{Icon|Start}} Agricultural chemistry
3. {{Icon|Start}} Agricultural economics
4. {{Icon|Start}} Agricultural philosophy
5. {{Icon|Start}} Agricultural soil science
6. {{Icon|Start}} Agroecology
7. {{Icon|C}} Agricultural policy
8. {{Icon|Start}} Agricultural geography
9. {{Icon|C}} Agricultural education
10. {{Icon|C}} {{Icon|DGA}} Agricultural extension
11. {{Icon|Start}} Agrometeorology

• Also see Agricultural engineering in the Engineering section

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{{Vital article count|49}}

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{{Vital article count|38}}

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

{{Vital article count|11}}

1. {{Icon|B}} Aquaculture (Level 4)
2. {{Icon|C}} Mariculture
3. {{Icon|C}} Algaculture
4. {{Icon|B}} Fish farming
5. {{Icon|Start}} Aquaculture of catfish
6. {{Icon|B}} Aquaculture of salmonids
7. {{Icon|C}} Aquaculture of tilapia
8. {{Icon|C}} Freshwater prawn farming
9. {{Icon|B}} Integrated multi-trophic aquaculture
10. {{Icon|C}} {{Icon|FFA}} Marine shrimp farming
11. {{Icon|B}} Seaweed farming

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{{Vital article count|25}}

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

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{{Vital article count|29}}

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1. {{Icon|Start}} Apiary
2. {{Icon|C}} Barn (Level 4)
3. {{Icon|C}} Farm (Level 4)
4. {{Icon|C}} Garden (Level 3)
5. {{Icon|C}} Arboretum
6. {{Icon|GA}} Botanical garden
7. {{Icon|Start}} Chinese garden
8. {{Icon|C}} English landscape garden
9. {{Icon|B}} French formal garden
10. {{Icon|C}} Japanese garden
11. {{Icon|C}} Persian gardens
12. {{Icon|Start}} Spanish garden
13. {{Icon|Start}} Fishery
14. {{Icon|Start}} Fish hatchery
15. {{Icon|Start}} Granary (Level 4)
16. {{Icon|C}} Grain elevator
17. {{Icon|C}} Greenhouse
18. {{Icon|C}} Orangery
19. {{Icon|C}} Paddy field
20. {{Icon|Start}} Pavilion
21. {{Icon|C}} Plant nursery
22. {{Icon|Stub}} Raised field
23. {{Icon|C}} Chinampa
24. {{Icon|C}} Waru Waru
25. {{Icon|Start}} Seedbed
26. {{Icon|Start}} Silo (Level 4)
27. {{Icon|Start}} Stable (Level 4)
28. {{Icon|C}} Terrace (earthworks)
29. {{Icon|C}} Ranch

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{{Vital article count|22}}

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1. {{Icon|GA}} Animal husbandry (Level 3)
2. {{Icon|C}} Animal slaughter
3. {{Icon|Start}} Breed (Level 4)
4. {{Icon|C}} Culling
5. {{Icon|GA}} Domestication (Level 3)
6. {{Icon|Start}} Goat farming
7. {{Icon|B}} {{Icon|FFA}} Horseshoe
8. {{Icon|C}} Animal feed
9. {{Icon|Start}} Fodder
10. {{Icon|C}} Hay (Level 4)
11. {{Icon|Start}} Straw
12. {{Icon|Start}} Forage
13. {{Icon|Start}} Fish meal
14. {{Icon|C}} Livestock (Level 4)
15. {{Icon|C}} Pig farming
16. {{Icon|B}} Poultry farming
17. {{Icon|C}} Selective breeding (Level 4)
18. {{Icon|Start}} Animal breeding
19. {{Icon|C}} Purebred
20. {{Icon|C}} Sheep farming
21. {{Icon|C}} Slaughterhouse
22. {{Icon|B}} Antibiotic use in livestock

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{{Vital article count|29}}

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{{Vital article count|4}}

1. {{Icon|C}} Agronomy (Level 4)
2. {{Icon|C}} Plant breeding (Level 4)
3. {{Icon|C}} {{Icon|DGA}} Cultivar (Level 4)
4. {{Icon|Start}} Crop yield

{{Vital article count|15}}

1. {{Icon|C}} Nutrient management
2. {{Icon|B}} Fertilizer (Level 3)
3. {{Icon|B}} Compost
4. {{Icon|C}} Vermicompost
5. {{Icon|Start}} Green manure
6. {{Icon|GA}} Guano
7. {{Icon|C}} Manure
8. {{Icon|Start}} Harvest (Level 4)
9. {{Icon|Start}} Threshing
10. {{Icon|Start}} Winnowing
11. {{Icon|C}} Irrigation (Level 4)
12. {{Icon|C}} Tillage (Level 4)
13. {{Icon|C}} Silage
14. {{Icon|Start}} Sowing
15. {{Icon|Start}} Postharvest

{{Vital article count|10}}

See "Pedology" in Earth Science

1. {{Icon|Start}} Beneficial organism
2. {{Icon|Start}} Cover crop
3. {{Icon|C}} Crop rotation
4. {{Icon|Start}} Mulch
5. {{Icon|C}} Plastic mulch
6. {{Icon|B}} Nitrogen fixation
7. {{Icon|Stub}} Norfolk four-course system
8. {{Icon|C}} No-till farming
9. {{Icon|Start}} Three-field system
10. {{Icon|C}} Soil salinity control

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{{Vital article count|22}}

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

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{{Vital article count|17}}

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1. {{Icon|Start}} Fishing line
2. {{Icon|Start}} Dropline
3. {{Icon|Start}} Longline fishing
4. {{Icon|Start}} Fishing net
5. {{Icon|B}} Gillnetting
6. {{Icon|Start}} Seine fishing
7. {{Icon|B}} Fishing rod
8. {{Icon|B}} Fish hook
9. {{Icon|Start}} Fishing lure
10. {{Icon|B}} Fishing reel
11. {{Icon|Start}} Fishing float
12. {{Icon|C}} Fish trap
13. {{Icon|Start}} Crab trap
14. {{Icon|Start}} Fishing weir
15. {{Icon|C}} Lobster trap
16. {{Icon|C}} Trapping
17. {{Icon|Start}} Bait (luring substance)

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{{Vital article count|6}}

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1. {{Icon|C}} Agroforestry
2. {{Icon|Start}} Arboriculture
3. {{Icon|Start}} Logging
4. {{Icon|C}} Silviculture
5. {{Icon|B}} Coppicing
6. {{Icon|C}} Controlled burn

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{{Vital article count|11}}

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1. {{Icon|C}} Community-supported agriculture
2. {{Icon|Start}} Teikei
3. {{Icon|B}} Corporate farming
4. {{Icon|B}} Family farm
5. {{Icon|Start}} Agricultural cooperative
6. {{Icon|C}} Working animal
7. {{Icon|C}} Guide dog
8. {{Icon|C}} Police dog
9. {{Icon|C}} Sled dog
10. {{Icon|Start}} Agribusiness
11. {{Icon|C}} Agricultural marketing

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{{Vital article count|3}}

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1. {{Icon|C}} Environmental impact of agriculture
2. {{Icon|Start}} Agricultural expansion
3. {{Icon|B}} Agricultural pollution

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

=Biotechnology =

{{Vital article count|43}}

See also : Selective Breeding in Agriculture; Fermentation in Biology

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

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=Computing and information technology =

{{Vital article count|627}}

For abstract topics in computer science, see Mathematics: Theoretical computer science (Level 5)

{{Vital article count|12}}

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1. {{Icon|B}} Computing (Level 4)
2. {{Icon|C}} Information technology (Level 4)
3. {{Icon|B}} Abacus (Level 4)
4. {{Icon|C}} Calculator (Level 4)
5. {{Icon|Stub}} Counting board
6. {{Icon|B}} Slide rule
7. {{Icon|C}} Data (computer science) (Level 4)
8. {{Icon|C}} Data communication (Level 4)
9. {{Icon|C}} Metadata
10. {{Icon|C}} File sharing
11. {{Icon|C}} Human–computer interaction
12. {{Icon|B}} Open source

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{{Vital article count|16}}

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

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{{Vital article count|26}}

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1. {{Icon|C}} Cache (computing)
2. {{Icon|Start}} Cache coherence
3. {{Icon|B}} Distributed computing
4. {{Icon|C}} Computer cluster
5. {{Icon|B}} {{Icon|DGA}} Grid computing
6. {{Icon|C}} Cloud computing
7. {{Icon|C}} Optical computing
8. {{Icon|B}} {{Icon|FFA}} Quantum computing
9. {{Icon|C}} Von Neumann architecture
10. {{Icon|Start}} 8-bit computing
11. {{Icon|Start}} 16-bit computing
12. {{Icon|C}} 32-bit computing
13. {{Icon|C}} 64-bit computing
14. {{Icon|C}} Endianness
15. {{Icon|Start}} Multithreading (computer architecture)
16. {{Icon|C}} Multiprocessing
17. {{Icon|C}} Instruction set architecture
18. {{Icon|C}} x86
19. {{Icon|C}} x86-64
20. {{Icon|B}} ARM architecture family
21. {{Icon|C}} IBM POWER architecture
22. {{Icon|B}} MIPS architecture
23. {{Icon|C}} Very long instruction word
24. {{Icon|LIST}} System time
25. {{Icon|C}} Epoch (computing)
26. {{Icon|C}} Unix time

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{{Vital article count|40}}

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1. {{Icon|C}} {{Icon|FFA}} Computer security (Level 4)
2. {{Icon|C}} Firewall (computing)
3. {{Icon|B}} Transport Layer Security
4. {{Icon|Start}} Security bug
5. {{Icon|C}} Zero-day vulnerability
6. {{Icon|C}} Denial-of-service attack
7. {{Icon|C}} Botnet
8. {{Icon|C}} Copy protection
9. {{Icon|C}} Digital rights management
10. {{Icon|C}} Malware (Level 4)
11. {{Icon|C}} Computer virus
12. {{Icon|C}} Computer worm
13. {{Icon|C}} Trojan horse (computing)
14. {{Icon|GA}} Ransomware
15. {{Icon|B}} {{Icon|FFA}} Spyware
16. {{Icon|C}} {{Icon|FFA}} Cryptography (Level 3)
17. {{Icon|B}} Blockchain
18. {{Icon|C}} Block cipher
19. {{Icon|C}} {{Icon|DGA}} Brute-force attack
20. {{Icon|FA}} Caesar cipher
21. {{Icon|C}} Cipher
22. {{Icon|C}} Cryptanalysis
23. {{Icon|C}} Cryptogram
24. {{Icon|C}} Digital signature
25. {{Icon|C}} Encryption (Level 4)
26. {{Icon|C}} {{Icon|FFA}} Enigma machine
27. {{Icon|Start}} Key (cryptography)
28. {{Icon|C}} One-time pad
29. {{Icon|C}} Public-key cryptography
30. {{Icon|C}} Diffie–Hellman key exchange
31. {{Icon|C}} RSA cryptosystem
32. {{Icon|Start}} Symmetric-key algorithm
33. {{Icon|C}} Authentication (Level 4)
34. {{Icon|C}} Password
35. {{Icon|C}} Security token
36. {{Icon|C}} Multi-factor authentication
37. {{Icon|C}} User (computing)
38. {{Icon|C}} Security through obscurity
39. {{Icon|C}} Obfuscation (software)
40. {{Icon|C}} Steganography

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{{Vital article count|83}}

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1. {{Icon|C}} Computer hardware (Level 4)
2. {{Icon|B}} Computer (Level 2)
3. {{Icon|C}} IBM PC compatible
4. {{Icon|C}} Mainframe computer
5. {{Icon|Start}} Microcomputer
6. {{Icon|C}} Mobile operating system
7. {{Icon|Start}} Mobile device (Level 4)
8. {{Icon|B}} Smartphone (Level 4)
9. {{Icon|B}} Tablet computer
10. {{Icon|Start}} Smartwatch
11. {{Icon|C}} Personal computer (Level 4)
12. {{Icon|B}} Desktop computer
13. {{Icon|C}} Gaming computer
14. {{Icon|C}} Home computer
15. {{Icon|C}} Laptop
16. {{Icon|C}} Supercomputer (Level 4)
17. {{Icon|C}} Workstation
18. {{Icon|C}} Booting
19. {{Icon|B}} BIOS
20. {{Icon|B}} UEFI
21. {{Icon|C}} Reboot
22. {{Icon|Start}} Processor (computing)
23. {{Icon|B}} {{Icon|FFA}} Central processing unit (Level 4)
24. {{Icon|C}} Microprocessor
25. {{Icon|C}} Multi-core processor
26. {{Icon|C}} Coprocessor
27. {{Icon|C}} Motherboard
28. {{Icon|C}} Processor register
29. {{Icon|C}} Floating-point unit
30. {{Icon|B}} Graphics processing unit
31. {{Icon|C}} Arithmetic logic unit
32. {{Icon|C}} Digital signal processor
33. {{Icon|C}} Bus (computing)
34. {{Icon|C}} SATA
35. {{Icon|C}} Parallel ATA
36. {{Icon|C}} Industry Standard Architecture
37. {{Icon|C}} Peripheral Component Interconnect
38. {{Icon|B}} PCI Express
39. {{Icon|Start}} Front-side bus
40. {{Icon|C}} Expansion card
41. {{Icon|C}} Sound card
42. {{Icon|C}} Graphics card
43. {{Icon|C}} PC Card
44. {{Icon|C}} ExpressCard
45. {{Icon|B}} Modem
46. {{Icon|C}} Device driver
47. {{Icon|C}} Intel High Definition Audio
48. {{Icon|GA}} Moore's law
49. {{Icon|C}} Clock rate
50. {{Icon|B}} Embedded system
51. {{Icon|C}} Real-time clock
52. {{Icon|B}} Computer cooling
53. {{Icon|B}} Analog computer
54. {{Icon|C}} Stored-program computer
55. {{Icon|C}} Hardware acceleration
56. {{Icon|Start}} Plug and play
57. {{Icon|Start}} Input device
58. {{Icon|Start}} Output device

{{Vital article count|25}}

1. {{Icon|C}} User interface (Level 4)
2. {{Icon|B}} Graphical user interface
3. {{Icon|Start}} Window (computing)
4. {{Icon|C}} {{Icon|FFA}} X Window System
5. {{Icon|C}} Command-line interface
6. {{Icon|C}} Cut, copy, and paste
7. {{Icon|Stub}} Peripheral
8. {{Icon|B}} Computer keyboard
9. {{Icon|C}} Computer monitor (Level 4)
10. {{Icon|C}} Pointing device
11. {{Icon|B}} Computer mouse (Level 4)
12. {{Icon|B}} Touchpad
13. {{Icon|C}} Touchscreen (Level 4)
14. {{Icon|C}} Virtual reality headset
15. {{Icon|Start}} Computer port (hardware)
16. {{Icon|B}} IEEE 1394
17. {{Icon|B}} USB
18. {{Icon|C}} USB-C
19. {{Icon|B}} D-subminiature
20. {{Icon|C}} Digital Visual Interface
21. {{Icon|C}} DisplayPort
22. {{Icon|B}} {{Icon|DGA}} HDMI
23. {{Icon|C}} VGA connector
24. {{Icon|C}} Thunderbolt (interface)
25. {{Icon|B}} Webcam

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{{Vital article count|38}}

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

{{Vital article count|16}}

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

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{{Vital article count|75}}

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

1. {{Icon|C}} Computer file (Level 4)
2. {{Icon|C}} Backup
3. {{Icon|B}} Barcode (Level 4)
4. {{Icon|C}} QR code
5. {{Icon|C}} File system (Level 4)
6. {{Icon|C}} HFS Plus
7. {{Icon|C}} File Allocation Table
8. {{Icon|B}} NTFS
9. {{Icon|C}} ext4
10. {{Icon|C}} ISO 9660
11. {{Icon|Start}} Universal Disk Format
12. {{Icon|C}} Directory (computing)
13. {{Icon|Start}} Filename extension
14. {{Icon|C}} Data storage (Level 4)
15. {{Icon|C}} Computer data storage
16. {{Icon|Start}} Cloud storage
17. {{Icon|C}} RAID
18. {{Icon|C}} Disk partitioning
19. {{Icon|B}} Computer memory
20. {{Icon|C}} Binary file
21. {{Icon|B}} Text file
22. {{Icon|Start}} Formatted text
23. {{Icon|C}} Plain text

{{Vital article count|25}}

1. {{Icon|C}} File format
2. {{Icon|Start}} Archive file
3. {{Icon|C}} ZIP (file format)
4. {{Icon|C}} RAR (file format)
5. {{Icon|C}} 7z
6. {{Icon|Start}} Document file format
7. {{Icon|B}} Office Open XML
8. {{Icon|B}} OpenDocument
9. {{Icon|B}} PDF
10. {{Icon|C}} Image file format
11. {{Icon|B}} GIF
12. {{Icon|B}} JPEG
13. {{Icon|C}} TIFF
14. {{Icon|B}} PNG
15. {{Icon|B}} SVG
16. {{Icon|C}} Audio coding format
17. {{Icon|C}} WAV
18. {{Icon|C}} MP3
19. {{Icon|C}} Advanced Audio Coding
20. {{Icon|C}} Video coding format
21. {{Icon|C}} DivX
22. {{Icon|C}} Container format
23. {{Icon|C}} MPEG-4
24. {{Icon|C}} WebM
25. {{Icon|B}} Ogg

{{Vital article count|5}}

1. {{Icon|Start}} Volatile memory
2. {{Icon|C}} Random-access memory (Level 4)
3. {{Icon|C}} Dynamic random-access memory
4. {{Icon|C}} Static random-access memory
5. {{Icon|C}} Virtual memory

{{Vital article count|22}}

1. {{Icon|C}} Non-volatile memory
2. {{Icon|C}} Read-only memory (Level 4)
3. {{Icon|C}} Magnetic storage
4. {{Icon|B}} {{Icon|FFA}} Floppy disk
5. {{Icon|B}} Hard disk drive (Level 4)
6. {{Icon|C}} Magnetic tape (Level 4)
7. {{Icon|C}} Magnetic-tape data storage
8. {{Icon|C}} VHS
9. {{Icon|C}} Videotape
10. {{Icon|B}} Flash memory
11. {{Icon|B}} USB flash drive
12. {{Icon|C}} Solid-state drive
13. {{Icon|Start}} Memory card (Level 4)
14. {{Icon|C}} CompactFlash
15. {{Icon|B}} SD card
16. {{Icon|C}} MultiMediaCard
17. {{Icon|C}} Universal Flash Storage
18. {{Icon|C}} Optical disc (Level 4)
19. {{Icon|B}} Compact disc
20. {{Icon|B}} DVD
21. {{Icon|C}} LaserDisc
22. {{Icon|C}} Blu-ray

{{Div col end}}

{{Vital article count|72}}

{{div col|colwidth=15em}}

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

{{Vital article count|42}}

For Internet culture, see Society and social sciences/Culture#Internet medium

1. {{Icon|B}} Internet (Level 3)
2. {{Icon|C}} ARPANET
3. {{Icon|B}} Communication protocol
4. {{Icon|Start}} Common Gateway Interface
5. {{Icon|C}} Domain name
6. {{Icon|C}} File Transfer Protocol
7. {{Icon|C}} Hashtag
8. {{Icon|B}} HTTP (Level 4)
9. {{Icon|C}} HTTPS
10. {{Icon|B}} Hyperlink
11. {{Icon|C}} Instant messaging
12. {{Icon|Start}} Online chat
13. {{Icon|C}} IRC
14. {{Icon|C}} Internet protocol suite (Level 4)
15. {{Icon|C}} Internet Protocol
16. {{Icon|C}} IP address
17. {{Icon|C}} IPv4
18. {{Icon|C}} IPv6
19. {{Icon|C}} Transmission Control Protocol
20. {{Icon|B}} Internet service provider
21. {{Icon|C}} Peer-to-peer
22. {{Icon|C}} BitTorrent
23. {{Icon|C}} {{Icon|DGA}} Napster
24. {{Icon|C}} Social media (Level 4)
25. {{Icon|C}} Blog
26. {{Icon|B}} Bulletin board system
27. {{Icon|Start}} Chat room
28. {{Icon|B}} Internet forum
29. {{Icon|B}} Online dating
30. {{Icon|B}} Social networking service
31. {{Icon|B}} Usenet
32. {{Icon|B}} Web 2.0
33. {{Icon|C}} Search engine (Level 4)
34. {{Icon|B}} Tor (network)
35. {{Icon|C}} URL
36. {{Icon|C}} Website (Level 4)
37. {{Icon|C}} Home page
38. {{Icon|B}} Web page
39. {{Icon|C}} {{Icon|DGA}} Wiki
40. {{Icon|C}} {{Icon|FFA}} World Wide Web (Level 4)
41. {{Icon|C}} Dark web
42. {{Icon|C}} Deep web

{{Div col end}}

{{Vital article count|49}}

{{div col|colwidth=15em}}

{{Vital article count|2}}

1. {{Icon|B}} Amazon Web Services
2. {{Icon|C}} Google Cloud Platform

{{Vital article count|5}}

1. {{Icon|B}} Flickr
2. {{Icon|B}} {{Icon|DGA}} Netflix
3. {{Icon|C}} Pornhub
4. {{Icon|GA}} Steam (service)
5. {{Icon|B}} {{Icon|DGA}} YouTube (Level 4)

{{Vital article count|3}}

1. {{Icon|B}} Alipay
2. {{Icon|B}} Craigslist
3. {{Icon|C}} Taobao

{{Vital article count|3}}

1. {{Icon|C}} MSN
2. {{Icon|C}} Naver
3. {{Icon|C}} Yahoo

{{Vital article count|6}}

1. {{Icon|B}} GitHub
2. {{Icon|B}} Google Maps
3. {{Icon|C}} Internet Archive
4. {{Icon|C}} IMDb
5. {{Icon|C}} Rotten Tomatoes
6. {{Icon|B}} {{Icon|FFA}} Wikipedia (Level 4)

{{Vital article count|1}}

1. {{Icon|C}} Berkeley Open Infrastructure for Network Computing

{{Vital article count|2}}

1. {{Icon|C}} Google Search
2. {{Icon|B}} Microsoft Bing

{{Vital article count|27}}

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

{{Div col end}}

{{Vital article count|124}}

{{Div col|colwidth=15em}}

{{Vital article count|63}}

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

{{Vital article count|43}}

1. {{Icon|Start}} Syntax (programming languages)
2. {{Icon|Start}} Metasyntax
3. {{Icon|C}} Backus–Naur form
4. {{Icon|C}} Type conversion
5. {{Icon|C}} Data type
6. {{Icon|C}} {{Icon|DGA}} Delimiter
7. {{Icon|C}} Operator overloading
8. {{Icon|Stub}} Language binding
9. {{Icon|C}} Low-level programming language
10. {{Icon|C}} Machine code
11. {{Icon|B}} Assembly language (Level 4)
12. {{Icon|Start}} High-level programming language
13. {{Icon|C}} {{Icon|FFA}} C (programming language) (Level 4)
14. {{Icon|B}} {{Icon|DGA}} C++
15. {{Icon|B}} C Sharp (programming language)
16. {{Icon|C}} Objective-C
17. {{Icon|B}} Haskell
18. {{Icon|C}} {{Icon|FFA}} Java (programming language) (Level 4)
19. {{Icon|C}} Kotlin (programming language)
20. {{Icon|B}} Lisp (programming language)
21. {{Icon|C}} Lua
22. {{Icon|B}} Scala (programming language)
23. {{Icon|B}} Swift (programming language)
24. {{Icon|C}} Visual Basic (.NET)
25. {{Icon|C}} Shading language
26. {{Icon|B}} R (programming language)

{{Vital article count|1}}

1. {{Icon|C}} SQL

{{Vital article count|3}}

1. {{Icon|B}} HTML (Level 4)
2. {{Icon|B}} HTML5
3. {{Icon|B}} XML

{{Vital article count|6}}

1. {{Icon|B}} {{Icon|DGA}} Python (programming language)
2. {{Icon|B}} Ruby (programming language)
3. {{Icon|C}} {{Icon|DGA}} PHP
4. {{Icon|C}} {{Icon|DGA}} Perl
5. {{Icon|B}} JavaScript (Level 4)
6. {{Icon|C}} Shell script

{{Vital article count|6}}

1. {{Icon|C}} ALGOL
2. {{Icon|C}} {{Icon|DGA}} BASIC
3. {{Icon|C}} Pascal (programming language)
4. {{Icon|C}} Fortran
5. {{Icon|C}} Ada (programming language)
6. {{Icon|C}} {{Icon|DGA}} COBOL

{{Vital article count|1}}

1. {{Icon|B}} CSS

{{Vital article count|18}}

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

{{Div col end}}

{{Vital article count|34}}

{{div col|colwidth=15em}}

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

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

{{Vital article count|18}}

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

{{Div col end}}

{{Vital article count|58}}

{{div col|colwidth=15em}}

{{Vital article count|2}}

1. {{Icon|C}} AlphaGo
2. {{Icon|B}} ChatGPT

{{Vital article count|5}}

1. {{Icon|B}} {{Icon|FFA}} Firefox
2. {{Icon|C}} Google Chrome
3. {{Icon|B}} {{Icon|DGA}} Internet Explorer
4. {{Icon|B}} Microsoft Edge
5. {{Icon|C}} {{Icon|DGA}} Safari (web browser)

{{Vital article count|2}}

1. {{Icon|B}} {{Icon|DGA}} Gmail
2. {{Icon|C}} Microsoft Outlook

{{Vital article count|1}}

1. {{Icon|B}} Visual Studio

{{Vital article count|9}}

1. {{Icon|C}} Adobe Creative Suite
2. {{Icon|C}} Adobe Flash
3. {{Icon|C}} Adobe Photoshop
4. {{Icon|C}} GarageBand
5. {{Icon|B}} GIMP
6. {{Icon|C}} Inkscape
7. {{Icon|B}} {{Icon|DGA}} iTunes
8. {{Icon|C}} Microsoft Paint
9. {{Icon|C}} VLC media player

{{Vital article count|11}}

1. {{Icon|C}} Adobe Acrobat
2. {{Icon|B}} {{Icon|FFA}} Emacs
3. {{Icon|C}} LibreOffice
4. {{Icon|B}} Microsoft Office
5. {{Icon|C}} Microsoft Excel
6. {{Icon|C}} Microsoft PowerPoint
7. {{Icon|B}} Microsoft Word
8. {{Icon|C}} MySQL
9. {{Icon|B}} {{Icon|DGA}} TeX
10. {{Icon|C}} WinRAR
11. {{Icon|B}} Vim (text editor)

{{Vital article count|20}}

1. {{Icon|B}} Android (operating system) (Level 4)
2. {{Icon|C}} iOS
3. {{Icon|C}} DOS
4. {{Icon|B}} MS-DOS (Level 4)
5. {{Icon|C}} Mac operating systems
6. {{Icon|B}} Classic Mac OS
7. {{Icon|B}} {{Icon|DGA}} macOS
8. {{Icon|B}} {{Icon|DGA}} Microsoft Windows (Level 4)
9. {{Icon|GA}} Windows 3.1
10. {{Icon|B}} Windows 9x
11. {{Icon|C}} Windows NT
12. {{Icon|GA}} {{Icon|FFA}} Windows XP
13. {{Icon|B}} Windows 7
14. {{Icon|GA}} Windows 10
15. {{Icon|B}} Windows 11
16. {{Icon|C}} Symbian
17. {{Icon|B}} Unix (Level 4)
18. {{Icon|Start}} Unix-like
19. {{Icon|B}} {{Icon|DGA}} Linux (Level 4)
20. {{Icon|GA}} Debian

{{Vital article count|2}}

1. {{Icon|C}} AutoCAD
2. {{Icon|B}} MATLAB

{{Vital article count|3}}

1. {{Icon|Start}} GDK
2. {{Icon|B}} {{Icon|DGA}} KDE
3. {{Icon|C}} Wine (software)

{{Vital article count|3}}

1. {{Icon|C}} Java virtual machine
2. {{Icon|C}} VirtualBox
3. {{Icon|C}} VMware

{{Div col end}}

=Electronics =

{{Vital article count|116}}

For topics in electromagnetism, see

Physics:Electromagnetism

{{Div col|colwidth=15em}}

{{Vital article count|9}}

1. {{Icon|C}} Electronics (Level 3)
2. {{Icon|C}} Analogue electronics
3. {{Icon|C}} Digital electronics
4. {{Icon|Start}} Circuit design (Level 4)
5. {{Icon|C}} Electronic design automation
6. {{Icon|B}} Printed circuit board (Level 4)
7. {{Icon|C}} SPICE
8. {{Icon|C}} Electronic circuit
9. {{Icon|B}} Multimeter

{{Vital article count|36}}

1. {{Icon|LIST}} Electronic component
2. {{Icon|B}} {{Icon|FFA}} Amplifier (Level 4)
3. {{Icon|B}} Operational amplifier
4. {{Icon|B}} Vacuum tube (Level 4)
5. {{Icon|B}} Capacitor (Level 4)
6. {{Icon|B}} Ceramic capacitor
7. {{Icon|B}} Electrolytic capacitor
8. {{Icon|B}} Film capacitor
9. {{Icon|C}} Leyden jar
10. {{Icon|B}} Supercapacitor
11. {{Icon|Start}} Variable capacitor
12. {{Icon|B}} Diode (Level 4)
13. {{Icon|B}} Light-emitting diode (Level 4)
14. {{Icon|B}} Electrical connector (Level 4)
15. {{Icon|C}} Inductor (Level 4)
16. {{Icon|C}} Power supply (Level 4)
17. {{Icon|C}} Current source
18. {{Icon|C}} Voltage source
19. {{Icon|B}} Resistor (Level 4)
20. {{Icon|C}} Potentiometer
21. {{Icon|C}} Switch (Level 4)
22. {{Icon|Stub}} Knife switch
23. {{Icon|C}} Relay (Level 4)
24. {{Icon|Stub}} Rotary switch
25. {{Icon|Start}} Transducer
26. {{Icon|C}} Actuator
27. {{Icon|C}} Solenoid
28. {{Icon|C}} Sensor (Level 4)
29. {{Icon|Start}} Avalanche photodiode
30. {{Icon|B}} Photodiode
31. {{Icon|B}} Photomultiplier tube
32. {{Icon|Stub}} Phototube
33. {{Icon|Stub}} Stretch sensor
34. {{Icon|C}} Thermistor
35. {{Icon|B}} Thermocouple
36. {{Icon|C}} {{Icon|DGA}} Transformer (Level 4)

{{Vital article count|3}}

1. {{Icon|B}} Consumer electronics (Level 4)
2. {{Icon|C}} AC adapter
3. {{Icon|C}} Remote control (Level 4)

{{Vital article count|16}}

1. {{Icon|C}} Asynchronous circuit
2. {{Icon|C}} Logic gate
3. {{Icon|Start}} AND gate
4. {{Icon|Stub}} Digital buffer
5. {{Icon|Start}} Inverter (logic gate)
6. {{Icon|Start}} NAND gate
7. {{Icon|Start}} NOR gate
8. {{Icon|Start}} OR gate
9. {{Icon|C}} XOR gate
10. {{Icon|Start}} XNOR gate
11. {{Icon|Start}} Adder (electronics)
12. {{Icon|Start}} Binary multiplier
13. {{Icon|Start}} Subtractor
14. {{Icon|C}} Flip-flop (electronics)
15. {{Icon|Stub}} Synchronous circuit
16. {{Icon|Start}} Clock domain crossing

{{Vital article count|14}}

1. {{Icon|Start}} Bridge circuit
2. {{Icon|C}} Wheatstone bridge
3. {{Icon|B}} Electronic oscillator
4. {{Icon|Start}} Clock generator
5. {{Icon|C}} Clock signal
6. {{Icon|C}} Crystal oscillator
7. {{Icon|C}} Variable-frequency oscillator
8. {{Icon|C}} Frequency mixer
9. {{Icon|C}} Gyrator
10. {{Icon|Start}} Negative impedance converter
11. {{Icon|C}} Power inverter
12. {{Icon|B}} Rectifier
13. {{Icon|Start}} Diode bridge
14. {{Icon|B}} Voltage regulator

{{Vital article count|14}}

1. {{Icon|C}} Semiconductor device (Level 3)
2. {{Icon|B}} Integrated circuit (Level 3)
3. {{Icon|C}} Application-specific integrated circuit
4. {{Icon|C}} Charge-coupled device (Level 4)
5. {{Icon|C}} Field-programmable gate array
6. {{Icon|C}} System on a chip
7. {{Icon|C}} Network on a chip
8. {{Icon|C}} Very-large-scale integration
9. {{Icon|C}} Transistor (Level 4)
10. {{Icon|B}} Bipolar junction transistor
11. {{Icon|B}} Field-effect transistor
12. {{Icon|C}} MOSFET
13. {{Icon|C}} Transistor–transistor logic
14. {{Icon|C}} CMOS

{{Vital article count|17}}

1. {{Icon|C}} Signal processing (Level 4)
2. {{Icon|C}} Digital signal
3. {{Icon|C}} Analog-to-digital converter
4. {{Icon|C}} Digital-to-analog converter
5. {{Icon|C}} Filter (signal processing) (Level 4)
6. {{Icon|C}} All-pass filter
7. {{Icon|Start}} Lattice phase equaliser
8. {{Icon|Start}} Band-pass filter
9. {{Icon|FA}} Mechanical filter
10. {{Icon|C}} High-pass filter
11. {{Icon|C}} Low-pass filter
12. {{Icon|C}} Multiplexing
13. {{Icon|C}} Noise (electronics)
14. {{Icon|C}} Signal-to-noise ratio (Level 4)
15. {{Icon|B}} Oscilloscope (Level 4)
16. {{Icon|C}} Sampling (signal processing)
17. {{Icon|B}} Nyquist–Shannon sampling theorem

{{Vital article count|7}}

1. {{Icon|C}} Antenna (radio) (Level 4)
2. {{Icon|Start}} Antenna array
3. {{Icon|C}} Electromagnetic shielding
4. {{Icon|C}} Faraday cage
5. {{Icon|B}} Transmission line
6. {{Icon|C}} Coaxial cable
7. {{Icon|C}} Waveguide (Level 4)

{{Div col end}}

=Energy =

{{Vital article count|176}}

{{Div col|colwidth=15em}}

{{Vital article count|5}}

1. {{Icon|C}} Energy development
2. {{Icon|C}} Electrification
3. {{Icon|C}} Propellant
4. {{Icon|B}} Renewable energy (Level 3)
5. {{Icon|FA}} Sustainable energy

{{Vital article count|25}}

1. {{Icon|C}} Fuel (Level 4)
2. {{Icon|C}} Biofuel (Level 4)
3. {{Icon|C}} Biomass (energy)
4. {{Icon|C}} Charcoal (Level 4)
5. {{Icon|C}} Fossil fuel (Level 3)
6. {{Icon|C}} Coal (Level 3)
7. {{Icon|Start}} Coke (fuel)
8. {{Icon|C}} Fracking
9. {{Icon|C}} Natural gas (Level 3)
10. {{Icon|B}} Liquefied natural gas
11. {{Icon|C}} Liquefied petroleum gas
12. {{Icon|C}} Oil well (Level 4)
13. {{Icon|B}} Petroleum reservoir
14. {{Icon|C}} Oil platform
15. {{Icon|B}} Hydrogen economy
16. {{Icon|B}} Oil refinery (Level 4)
17. {{Icon|Start}} Aviation fuel
18. {{Icon|C}} Jet fuel
19. {{Icon|C}} Diesel fuel
20. {{Icon|C}} Fuel oil
21. {{Icon|B}} Gasoline (Level 4)
22. {{Icon|B}} Kerosene (Level 4)
23. {{Icon|Start}} Liquid fuel
24. {{Icon|B}} Nuclear fuel
25. {{Icon|C}} Nuclear fuel cycle

{{Vital article count|14}}

1. {{Icon|C}} Heating, ventilation, and air conditioning (Level 4)
2. {{Icon|B}} Chimney
3. {{Icon|C}} Fireplace (Level 4)
4. {{Icon|B}} Heat pump
5. {{Icon|C}} Air conditioning (Level 4)
6. {{Icon|B}} Evaporative cooler
7. {{Icon|C}} Passive cooling
8. {{Icon|B}} Windcatcher
9. {{Icon|C}} Boiler
10. {{Icon|C}} Fan (machine)
11. {{Icon|B}} Ceiling fan
12. {{Icon|B}} Heat exchanger
13. {{Icon|B}} Refrigeration (Level 3)
14. {{Icon|Start}} Yakhchāl

{{Vital article count|13}}

1. {{Icon|C}} Candle (Level 4)
2. {{Icon|C}} Electric light (Level 3)
3. {{Icon|C}} Flashlight
4. {{Icon|B}} Fluorescent lamp
5. {{Icon|B}} Incandescent light bulb (Level 4)
6. {{Icon|B}} Neon lighting
7. {{Icon|C}} Gas lighting
8. {{Icon|C}} Gas mantle
9. {{Icon|Start}} Lantern
10. {{Icon|C}} Match
11. {{Icon|C}} Oil lamp
12. {{Icon|Start}} Prism lighting
13. {{Icon|C}} Light tube

{{Vital article count|41}}

1. {{Icon|C}} Power station (Level 4)
2. {{Icon|C}} Electric generator (Level 4)
3. {{Icon|C}} Induction generator
4. {{Icon|C}} Electricity generation (Level 4)
5. {{Icon|C}} Hydropower (Level 3)
6. {{Icon|C}} Hydroelectricity (Level 4)
7. {{Icon|B}} Tidal power
8. {{Icon|C}} Watermill (Level 4)
9. {{Icon|B}} Microgeneration
10. {{Icon|Start}} Micro-CHP
11. {{Icon|GA}} Nuclear power (Level 3)
12. {{Icon|B}} Fusion power
13. {{Icon|C}} Inertial confinement fusion
14. {{Icon|C}} Tokamak
15. {{Icon|B}} Nuclear reactor
16. {{Icon|C}} Breeder reactor
17. {{Icon|B}} Molten-salt reactor
18. {{Icon|C}} Heavy water reactor
19. {{Icon|C}} Small modular reactor
20. {{Icon|C}} Nuclear marine propulsion
21. {{Icon|C}} Nuclear meltdown
22. {{Icon|B}} {{Icon|DGA}} Solar energy (Level 3)
23. {{Icon|B}} {{Icon|DGA}} Solar power (Level 4)
24. {{Icon|B}} {{Icon|DGA}} Solar cell (Level 4)
25. {{Icon|C}} Solar panel
26. {{Icon|C}} Thermal power station
27. {{Icon|Start}} Boiler (power generation)
28. {{Icon|C}} Cogeneration
29. {{Icon|B}} Combined cycle power plant
30. {{Icon|C}} Concentrated solar power
31. {{Icon|B}} Cooling tower (Level 4)
32. {{Icon|B}} Fossil fuel power station
33. {{Icon|C}} Coal-fired power station
34. {{Icon|C}} Gas-fired power plant
35. {{Icon|C}} Geothermal power (Level 4)
36. {{Icon|C}} Turbine (Level 4)
37. {{Icon|B}} Gas turbine (Level 4)
38. {{Icon|C}} Steam turbine (Level 4)
39. {{Icon|GA}} Wind turbine (Level 4)
40. {{Icon|B}} {{Icon|DGA}} Wind power (Level 3)
41. {{Icon|B}} {{Icon|DGA}} Windmill (Level 4)

{{Vital article count|15}}

1. {{Icon|C}} Energy storage
2. {{Icon|C}} Compressed-air energy storage
3. {{Icon|GA}} Grid energy storage
4. {{Icon|C}} Home energy storage
5. {{Icon|Start}} Thermal energy storage
6. {{Icon|C}} Electric battery (Level 3)
7. {{Icon|C}} Alkaline battery
8. {{Icon|C}} Atomic battery
9. {{Icon|C}} Lead–acid battery
10. {{Icon|C}} Lithium-ion battery
11. {{Icon|C}} Lithium polymer battery
12. {{Icon|C}} Rechargeable battery
13. {{Icon|B}} Fuel cell
14. {{Icon|C}} Power-to-X
15. {{Icon|C}} Pumped-storage hydroelectricity

{{Vital article count|60}}

See also: Electromagnetism and Electromagnetism

1. {{Icon|B}} {{Icon|FFA}} AC power plugs and sockets
2. {{Icon|C}} Electric power transmission (Level 4)
3. {{Icon|C}} Electric power distribution (Level 4)
4. {{Icon|C}} Electrical grid (Level 4)
5. {{Icon|C}} Three-phase electric power
6. {{Icon|Start}} Virtual power plant
7. {{Icon|C}} Electrical wiring (Level 4)
8. {{Icon|Start}} Electrical cable (Level 4)
9. {{Icon|C}} Power cable
10. {{Icon|C}} Mains electricity

{{Vital article count|21}}

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

{{Vital article count|19}}

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

{{Vital article count|10}}

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

{{Vital article count|3}}

See "Dams" section in "Specific infrastructure" for hydroelectric power plants

1. {{Icon|C}} Continental Europe Synchronous Area
2. {{Icon|Start}} Eastern Interconnection
3. {{Icon|Start}} Western Interconnection

{{Div col end}}

=Industry =

{{Vital article count|219}}

See also: "Industry" in Business and economics (Level 4)

{{Div col|colwidth=15em}}

{{Vital article count|18}}

1. {{Icon|C}} Factory (Level 4)
2. {{Icon|C}} Assembly line (Level 4)
3. {{Icon|B}} Automation (Level 4)
4. {{Icon|C}} Conveyor system
5. {{Icon|C}} Conveyor belt
6. {{Icon|B}} Industrial robot (Level 4)
7. {{Icon|C}} Interchangeable parts (Level 4)
8. {{Icon|C}} Mass production (Level 4)
9. {{Icon|C}} Mechanization (Level 4)
10. {{Icon|C}} Pelletizing
11. {{Icon|C}} Standardization (Level 4)
12. {{Icon|C}} Waste (Level 4)
13. {{Icon|Start}} Disposable product
14. {{Icon|B}} Incineration
15. {{Icon|C}} Landfill (Level 4)
16. {{Icon|B}} Recycling (Level 4)
17. {{Icon|B}} Waste management (Level 4)
18. {{Icon|B}} 3D printing

{{Vital article count|36}}

1. {{Icon|C}} Air purifier
2. {{Icon|Start}} Air filter
3. {{Icon|C}} HEPA
4. {{Icon|C}} Catalytic converter
5. {{Icon|B}} Respirator
6. {{Icon|C}} Gas mask
7. {{Icon|Start}} Scrubber
8. {{Icon|C}} Bleach (Level 4)
9. {{Icon|B}} Desalination (Level 4)
10. {{Icon|C}} Detergent (Level 4)
11. {{Icon|C}} Laundry (Level 4)
12. {{Icon|Start}} Food additive
13. {{Icon|C}} Food coloring
14. {{Icon|B}} High-fructose corn syrup
15. {{Icon|B}} {{Icon|DGA}} Sugar substitute
16. {{Icon|Start}} Food processing
17. {{Icon|Start}} Fermentation in food processing
18. {{Icon|B}} Pasteurization (Level 4)
19. {{Icon|Start}} Food storage
20. {{Icon|Start}} Oxygen mask
21. {{Icon|B}} Sanitation (Level 3)
22. {{Icon|C}} Sewage
23. {{Icon|Start}} Sewerage
24. {{Icon|C}} Sanitary sewer (Level 4)
25. {{Icon|Stub}} Street gutter
26. {{Icon|B}} Sewage treatment (Level 4)
27. {{Icon|C}} Septic tank
28. {{Icon|B}} Water purification (Level 4)
29. {{Icon|B}} Soap (Level 4)
30. {{Icon|B}} Sterilization (microbiology)
31. {{Icon|C}} Water supply network (Level 4)
32. {{Icon|C}} Aqueduct (water supply) (Level 4)
33. {{Icon|C}} Pumping station (Level 4)
34. {{Icon|C}} Qanat (Level 4)
35. {{Icon|C}} Water tower (Level 4)
36. {{Icon|C}} Well (Level 4)

{{Vital article count|45}}

1. {{Icon|C}} Abrasive (Level 4)
2. {{Icon|B}} Ceramic (Level 4)
3. {{Icon|C}} Pottery (Level 3)
4. {{Icon|C}} Earthenware
5. {{Icon|Start}} Ironstone china
6. {{Icon|C}} Lithophane
7. {{Icon|B}} Porcelain (Level 4)
8. {{Icon|C}} Stoneware
9. {{Icon|Start}} Terracotta
10. {{Icon|C}} Kiln
11. {{Icon|C}} Chemical vapor deposition
12. {{Icon|C}} Cork (material)
13. {{Icon|GA}} {{Icon|FFA}} Glass (Level 3)
14. {{Icon|C}} Borosilicate glass
15. {{Icon|C}} Float glass
16. {{Icon|C}} Fused quartz
17. {{Icon|B}} Glassblowing
18. {{Icon|GA}} Glass fiber
19. {{Icon|Start}} Glass wool
20. {{Icon|Start}} Safety glass
21. {{Icon|C}} Soda–lime glass
22. {{Icon|Start}} Gutta-percha
23. {{Icon|C}} Leather (Level 4)
24. {{Icon|Start}} Artificial leather
25. {{Icon|Start}} Hide (skin)
26. {{Icon|Start}} Liming (leather processing)
27. {{Icon|B}} Parchment (Level 4)
28. {{Icon|Start}} Vellum
29. {{Icon|Start}} Suede
30. {{Icon|C}} Tanning (leather)
31. {{Icon|Start}} Mineral wool
32. {{Icon|B}} Natural rubber (Level 3)
33. {{Icon|C}} Vulcanization
34. {{Icon|B}} Paper (Level 3)
35. {{Icon|C}} Cardboard
36. {{Icon|B}} Papermaking
37. {{Icon|C}} Pulp (paper)
38. {{Icon|C}} Sizing
39. {{Icon|C}} Papyrus (Level 4)
40. {{Icon|Start}} Tissue paper
41. {{Icon|B}} Plastic (Level 3)
42. {{Icon|C}} Carbon-fiber reinforced polymer
43. {{Icon|C}} Fiberglass
44. {{Icon|GA}} Injection moulding
45. {{Icon|C}} Microplastics

{{Vital article count|8}}

1. {{Icon|C}} Adhesive (Level 4)
2. {{Icon|C}} Chemical plant (Level 4)
3. {{Icon|C}} Composite material (Level 4)
4. {{Icon|C}} Explosive (Level 3)
5. {{Icon|C}} Dynamite (Level 4)
6. {{Icon|C}} Fireworks (Level 4)
7. {{Icon|C}} Lubricant
8. {{Icon|Start}} Petrochemical (Level 4)

{{Vital article count|48}}

1. {{Icon|C}} Metallurgy (Level 3)
2. {{Icon|C}} Smelting (Level 4)
3. {{Icon|B}} {{Icon|DGA}} Blast furnace
4. {{Icon|Start}} Crucible
5. {{Icon|B}} Electric arc furnace
6. {{Icon|Start}} Induction furnace
7. {{Icon|C}} Extractive metallurgy
8. {{Icon|C}} Gold dredge
9. {{Icon|Start}} Mineral processing
10. {{Icon|B}} Crusher
11. {{Icon|C}} Mechanical screening
12. {{Icon|Start}} Spiral separator
13. {{Icon|C}} Stamp mill
14. {{Icon|C}} Trommel screen
15. {{Icon|Stub}} Rocker box
16. {{Icon|B}} Metalworking (Level 4)
17. {{Icon|C}} Anvil
18. {{Icon|C}} Bellows
19. {{Icon|C}} Bending (metalworking)
20. {{Icon|C}} Metal casting
21. {{Icon|C}} {{Icon|DGA}} Die casting (Level 4)
22. {{Icon|C}} Lost-wax casting
23. {{Icon|C}} Sand casting
24. {{Icon|B}} Drawing (manufacturing)
25. {{Icon|Start}} Wire (Level 4)
26. {{Icon|C}} Electrical discharge machining
27. {{Icon|B}} Extrusion (Level 4)
28. {{Icon|C}} Forge
29. {{Icon|B}} Forging (Level 4)
30. {{Icon|Start}} Power hammer
31. {{Icon|C}} Grinding (abrasive cutting)
32. {{Icon|C}} Heat treating (Level 4)
33. {{Icon|C}} Laser cutting (Level 4)
34. {{Icon|C}} Machining
35. {{Icon|C}} Metal fabrication
36. {{Icon|C}} Plating
37. {{Icon|C}} Anodizing
38. {{Icon|C}} Electroplating
39. {{Icon|C}} Powder coating
40. {{Icon|C}} Precipitation hardening
41. {{Icon|C}} Quenching
42. {{Icon|C}} Rolling (metalworking) (Level 4)
43. {{Icon|C}} Sheet metal
44. {{Icon|C}} Sintering
45. {{Icon|C}} Soldering (Level 4)
46. {{Icon|C}} Steelmaking (Level 4)
47. {{Icon|FA}} Welding (Level 4)
48. {{Icon|C}} Work hardening

{{Vital article count|64}}

1. {{Icon|B}} Textile (Level 3)
2. {{Icon|Start}} Carding

{{Vital article count|22}}

1. {{Icon|Start}} Canvas (Level 4)
2. {{Icon|C}} Carbon fibers
3. {{Icon|B}} Cotton (Level 3)
4. {{Icon|Start}} Chino cloth
5. {{Icon|C}} Denim
6. {{Icon|B}} Muslin
7. {{Icon|Start}} Felt (Level 4)
8. {{Icon|Start}} Flannel
9. {{Icon|C}} Fiber (Level 4)
10. {{Icon|C}} Jute
11. {{Icon|B}} Kevlar
12. {{Icon|Start}} Lace (Level 4)
13. {{Icon|C}} Linen (Level 4)
14. {{Icon|C}} Polyester (Level 4)
15. {{Icon|C}} Rayon
16. {{Icon|B}} Silk (Level 4)
17. {{Icon|C}} Spandex
18. {{Icon|Start}} Thread (yarn) (Level 4)
19. {{Icon|C}} Wool (Level 4)
20. {{Icon|C}} Cashmere wool
21. {{Icon|C}} Tweed
22. {{Icon|Start}} Yarn (Level 4)

{{Vital article count|12}}

1. {{Icon|C}} Basket weaving (Level 4)
2. {{Icon|B}} Crochet (Level 4)
3. {{Icon|Start}} Dyeing (Level 4)
4. {{Icon|C}} Dye (Level 4)
5. {{Icon|C}} Embroidery (Level 4)
6. {{Icon|B}} Knitting (Level 4)
7. {{Icon|Start}} Macramé
8. {{Icon|Start}} Textile printing
9. {{Icon|B}} Quilting (Level 4)
10. {{Icon|Start}} Quilt
11. {{Icon|C}} Sewing (Level 4)
12. {{Icon|Start}} Pattern

{{Vital article count|12}}

1. {{Icon|B}} Hand spinning (Level 4)
2. {{Icon|Start}} Distaff
3. {{Icon|Start}} Spindle (textiles)
4. {{Icon|Stub}} Open-end spinning
5. {{Icon|C}} Spinning (polymers)
6. {{Icon|Stub}} Spinneret (polymers)
7. {{Icon|C}} Ring spinning
8. {{Icon|Start}} Spinning frame
9. {{Icon|Start}} Water frame
10. {{Icon|Start}} Spinning jenny
11. {{Icon|B}} Spinning mule
12. {{Icon|Start}} Spinning wheel

{{Vital article count|16}}

1. {{Icon|C}} Loom (Level 4)
2. {{Icon|C}} Jacquard machine
3. {{Icon|Stub}} Pirn
4. {{Icon|C}} Power loom
5. {{Icon|Start}} Shuttle (weaving)
6. {{Icon|Start}} Flying shuttle
7. {{Icon|B}} Weaving (Level 4)
8. {{Icon|C}} Braid
9. {{Icon|C}} Brocade
10. {{Icon|Start}} Damask
11. {{Icon|Start}} Plain weave
12. {{Icon|Start}} Satin
13. {{Icon|Start}} Songket
14. {{Icon|B}} Tapestry (Level 4)
15. {{Icon|Start}} Twill
16. {{Icon|Start}} Warp and weft

{{Div col end}}

=Infrastructure =

{{Vital article count|202}}

See also Arts: Architecture

{{Div col|colwidth=15em}}

{{Vital article count|2}}

1. {{Icon|C}} Building (Level 3)
2. {{Icon|C}} Infrastructure (Level 3)

{{Vital article count|41}}

1. {{Icon|C}} Brick (Level 4)
2. {{Icon|Start}} Fire brick
3. {{Icon|B}} Cement (Level 4)
4. {{Icon|B}} Bitumen
5. {{Icon|B}} Portland cement
6. {{Icon|C}} Concrete (Level 3)
7. {{Icon|C}} Asphalt concrete
8. {{Icon|B}} Concrete slab
9. {{Icon|C}} Precast concrete
10. {{Icon|Start}} Prestressed concrete
11. {{Icon|Start}} Ready-mix concrete
12. {{Icon|B}} Reinforced concrete
13. {{Icon|C}} Rebar
14. {{Icon|C}} Roman concrete
15. {{Icon|C}} Masonry (Level 3)
16. {{Icon|B}} Brickwork
17. {{Icon|Start}} Stonemasonry
18. {{Icon|Start}} Quarry (Level 4)
19. {{Icon|C}} Scaffolding (Level 4)
20. {{Icon|C}} Adobe
21. {{Icon|C}} Construction aggregate
22. {{Icon|Start}} Clapboard
23. {{Icon|C}} Mortar (masonry)
24. {{Icon|Start}} Lath and plaster
25. {{Icon|B}} Lath
26. {{Icon|C}} Plaster
27. {{Icon|C}} Drywall
28. {{Icon|C}} Rammed earth
29. {{Icon|Start}} Roof shingle
30. {{Icon|C}} Siding (construction)
31. {{Icon|C}} Stone slab
32. {{Icon|Start}} Tile
33. {{Icon|C}} Wattle and daub
34. {{Icon|C}} {{Icon|DGA}} Wood (Level 3)
35. {{Icon|C}} Engineered wood
36. {{Icon|C}} Wood–plastic composite
37. {{Icon|C}} Lumber (Level 4)
38. {{Icon|C}} Sawmill
39. {{Icon|C}} Wood drying
40. {{Icon|B}} Woodworking (Level 4)
41. {{Icon|C}} Carpentry (Level 4)

{{Vital article count|6}}

1. {{Icon|B}} Environmental remediation
2. {{Icon|Start}} Bioremediation
3. {{Icon|C}} Bioaugmentation
4. {{Icon|C}} Phytoremediation
5. {{Icon|C}} Groundwater remediation
6. {{Icon|C}} Soil vapor extraction

{{Vital article count|71}}

{{Vital article count|23}}

1. {{Icon|C}} Arch (Level 4)
2. {{Icon|Start}} Buttress
3. {{Icon|Start}} Ceiling (Level 4)
4. {{Icon|Start}} Column (Level 4)
5. {{Icon|B}} Dome (Level 4)
6. {{Icon|B}} Door (Level 4)
7. {{Icon|C}} Elevator (Level 4)
8. {{Icon|C}} Escalator
9. {{Icon|Start}} Façade (Level 4)
10. {{Icon|Start}} Floor (Level 4)
11. {{Icon|C}} Foundation (engineering) (Level 4)
12. {{Icon|Start}} Gate
13. {{Icon|Start}} Guard rail
14. {{Icon|Stub}} Hallway
15. {{Icon|C}} Ladder (Level 4)
16. {{Icon|C}} Lighting (Level 4)
17. {{Icon|Start}} Pier (architecture)
18. {{Icon|Start}} Roof (Level 4)
19. {{Icon|Start}} Room (Level 4)
20. {{Icon|C}} Stairs (Level 4)
21. {{Icon|B}} Vault (architecture)
22. {{Icon|C}} Wall (Level 4)
23. {{Icon|C}} Window (Level 4)

{{Vital article count|10}}

1. {{Icon|Start}} Dock (Level 4)
2. {{Icon|C}} Dry dock
3. {{Icon|Start}} Marina
4. {{Icon|Start}} Harbor (Level 4)
5. {{Icon|B}} Lighthouse (Level 4)
6. {{Icon|Start}} Pier (Level 4)
7. {{Icon|Stub}} Maritime passenger terminal
8. {{Icon|C}} Port (Level 4)
9. {{Icon|Start}} Container port
10. {{Icon|C}} Seawall

{{Vital article count|2}}

1. {{Icon|C}} Pagoda (Level 4)
2. {{Icon|B}} Pyramid (Level 4)

{{Vital article count|4}}

1. {{Icon|Stub}} Convention center
2. {{Icon|C}} Data center
3. {{Icon|C}} Office (Level 4)
4. {{Icon|C}} Warehouse (Level 4)

{{Vital article count|4}}

1. {{Icon|C}} Military base
2. {{Icon|C}} Tower block (Level 4)
3. {{Icon|B}} Skyscraper (Level 4)
4. {{Icon|C}} Tower (Level 4)

{{Vital article count|3}}

1. {{Icon|Stub}} Earthworks (engineering)
2. {{Icon|C}} Trench
3. {{Icon|C}} Underground power line

{{Vital article count|3}}

1. {{Icon|C}} Fire alarm system
2. {{Icon|C}} Fire hydrant
3. {{Icon|B}} Smoke detector

{{Vital article count|11}}

1. {{Icon|Start}} Cistern
2. {{Icon|C}} Dam (Level 3)
3. {{Icon|C}} Caisson (engineering)
4. {{Icon|C}} Drainage (Level 4)
5. {{Icon|C}} Rain gutter
6. {{Icon|Start}} Sluice
7. {{Icon|C}} Dredging
8. {{Icon|C}} Flood management (Level 4)
9. {{Icon|C}} Flood control in the Netherlands (Level 4)
10. {{Icon|Start}} Levee (Level 4)
11. {{Icon|C}} Reservoir (Level 4)

{{Vital article count|11}}

See also #Transportation section

1. {{Icon|C}} Bridge (Level 3)
2. {{Icon|B}} Cantilever bridge
3. {{Icon|Start}} Drawbridge
4. {{Icon|Start}} Flying junction
5. {{Icon|B}} Pontoon bridge
6. {{Icon|B}} Suspension bridge
7. {{Icon|Start}} Viaduct
8. {{Icon|B}} Tunnel (Level 4)
9. {{Icon|Start}} Underwater tunnel
10. {{Icon|Start}} Tunnel construction
11. {{Icon|C}} Tunnel boring machine

{{Div col end}}

{{Vital article count|82}}

{{Div col|colwidth=15em}}

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

{{Vital article count|26}}

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

{{Vital article count|48}}

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

{{Vital article count|3}}

1. {{Icon|B}} Channel Tunnel (Level 4)
2. {{Icon|B}} Gotthard Base Tunnel
3. {{Icon|B}} Seikan Tunnel

{{Vital article count|5}}

1. {{Icon|C}} Bering Strait crossing
2. {{Icon|C}} Chesapeake Bay Bridge–Tunnel
3. {{Icon|B}} Hong Kong–Zhuhai–Macau Bridge
4. {{Icon|Start}} Tokyo Bay Aqua-Line
5. {{Icon|B}} Øresund Bridge

{{Div col end}}

=Machinery and tools =

{{Vital article count|306}}

{{Div col|colwidth=15em}}

{{Vital article count|12}}

1. {{Icon|C}} Machine (Level 4)
2. {{Icon|C}} Mechanism (engineering)
3. {{Icon|C}} MEMS
4. {{Icon|Start}} Micromachinery
5. {{Icon|C}} Nanoelectromechanical systems
6. {{Icon|Start}} Owner's manual
7. {{Icon|B}} Robotics (Level 3)
8. {{Icon|B}} Android (robot)
9. {{Icon|C}} Automaton
10. {{Icon|B}} {{Icon|DGA}} Robot (Level 4)
11. {{Icon|C}} Robotic arm
12. {{Icon|Start}} Leg mechanism

{{Vital article count|69}}

{{Vital article count|14}}

1. {{Icon|C}} Belt (mechanical)
2. {{Icon|Start}} Chain (Level 4)
3. {{Icon|C}} Net (device)
4. {{Icon|Start}} Mesh
5. {{Icon|C}} Sieve
6. {{Icon|C}} Rope (Level 4)
7. {{Icon|C}} Knot (Level 4)
8. {{Icon|C}} Bowline
9. {{Icon|Start}} Double fisherman's knot
10. {{Icon|Start}} Figure-eight knot
11. {{Icon|C}} Wire rope
12. {{Icon|C}} Bowden cable
13. {{Icon|Stub}} Flexible shaft
14. {{Icon|Start}} Spring (device) (Level 4)

{{Vital article count|20}}

1. {{Icon|C}} Blade
2. {{Icon|Start}} Fastener (Level 4)
3. {{Icon|C}} Nail (fastener) (Level 4)
4. {{Icon|C}} Nut (hardware) (Level 4)
5. {{Icon|C}} Rivet (Level 4)
6. {{Icon|B}} Screw
7. {{Icon|C}} Washer (hardware)
8. {{Icon|B}} Gear (Level 4)
9. {{Icon|Start}} Hook
10. {{Icon|C}} Piston
11. {{Icon|C}} Simple machine (Level 3)
12. {{Icon|C}} Inclined plane (Level 4)
13. {{Icon|B}} Lever (Level 4)
14. {{Icon|C}} Pulley (Level 4)
15. {{Icon|C}} Block and tackle
16. {{Icon|C}} Screw mechanism (Level 4)
17. {{Icon|B}} Propeller
18. {{Icon|C}} Wedge (Level 4)
19. {{Icon|B}} Wheel (Level 3)
20. {{Icon|C}} Flywheel

{{Vital article count|35}}

1. {{Icon|Start}} Alarm device
2. {{Icon|C}} Locker
3. {{Icon|C}} Lock and key (Level 4)
4. {{Icon|Start}} Deadbolt
5. {{Icon|Start}} Disc tumbler lock
6. {{Icon|Start}} Electronic lock
7. {{Icon|Start}} Lever tumbler lock
8. {{Icon|C}} Padlock
9. {{Icon|Start}} Pin tumbler lock
10. {{Icon|Start}} Skeleton key
11. {{Icon|Start}} Kinematic pair
12. {{Icon|C}} Ball joint
13. {{Icon|C}} Bearing (mechanical) (Level 4)
14. {{Icon|Start}} Cam follower
15. {{Icon|C}} Tappet
16. {{Icon|Start}} Hinge
17. {{Icon|C}} Rack and pinion
18. {{Icon|Start}} Ratchet (device)
19. {{Icon|C}} Rod end bearing
20. {{Icon|Start}} Wheel and axle (Level 4)
21. {{Icon|C}} Axle (Level 4)
22. {{Icon|C}} Linkage (mechanical)
23. {{Icon|C}} Clutch (Level 4)
24. {{Icon|B}} Differential (mechanical device)
25. {{Icon|B}} Epicyclic gearing
26. {{Icon|B}} Escapement
27. {{Icon|C}} Four-bar linkage
28. {{Icon|C}} Gimbal
29. {{Icon|C}} Pantograph
30. {{Icon|Start}} Whippletree (mechanism)
31. {{Icon|C}} Shock absorber
32. {{Icon|Start}} Dashpot
33. {{Icon|Start}} Winch
34. {{Icon|Start}} Capstan (nautical)
35. {{Icon|Start}} Windlass

{{Vital article count|12}}

1. {{Icon|C}} Engine (Level 3)
2. {{Icon|C}} Electric motor (Level 3)
3. {{Icon|C}} Linear motor
4. {{Icon|C}} Internal combustion engine (Level 3)
5. {{Icon|C}} Diesel engine (Level 4)
6. {{Icon|C}} Petrol engine
7. {{Icon|B}} Reciprocating engine
8. {{Icon|C}} Four-stroke engine (Level 4)
9. {{Icon|C}} Two-stroke engine
10. {{Icon|Stub}} Pistonless rotary engine
11. {{Icon|C}} Wankel engine
12. {{Icon|C}} Steam engine (Level 3)

{{Vital article count|26}}

1. {{Icon|C}} Hydraulics
2. {{Icon|C}} Hydraulic cylinder
3. {{Icon|C}} Hydraulic machinery
4. {{Icon|C}} Hydraulic motor
5. {{Icon|Stub}} Hydraulic manifold
6. {{Icon|C}} Pump
7. {{Icon|C}} Hydraulic ram
8. {{Icon|C}} Siphon (Level 4)
9. {{Icon|C}} Pipe (fluid conveyance) (Level 4)
10. {{Icon|C}} Gasket
11. {{Icon|Start}} Valve (Level 4)
12. {{Icon|C}} Plumbing (Level 4)
13. {{Icon|C}} Bidet
14. {{Icon|C}} Sink (Level 4)
15. {{Icon|C}} Toilet (Level 4)
16. {{Icon|B}} Flush toilet
17. {{Icon|C}} Portable toilet
18. {{Icon|C}} Squat toilet
19. {{Icon|C}} Toilet seat
20. {{Icon|B}} Urinal
21. {{Icon|Start}} Pneumatics
22. {{Icon|B}} Compressor
23. {{Icon|C}} Jackhammer
24. {{Icon|Start}} Nail gun
25. {{Icon|C}} Rivet gun
26. {{Icon|B}} Vacuum pump

{{Vital article count|56}}

{{Vital article count|16}}

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

{{Vital article count|28}}

1. {{Icon|C}} Home appliance (Level 4)
2. {{Icon|Start}} Major appliance
3. {{Icon|C}} Barbecue grill
4. {{Icon|C}} Blender
5. {{Icon|C}} Clothes dryer (Level 4)
6. {{Icon|Start}} Coffeemaker
7. {{Icon|C}} Dishwasher (Level 4)
8. {{Icon|Start}} Furnace (central heating) (Level 4)
9. {{Icon|C}} Hair dryer
10. {{Icon|Start}} Hair iron
11. {{Icon|C}} Humidifier
12. {{Icon|C}} Ironing (Level 4)
13. {{Icon|Start}} Juicer
14. {{Icon|B}} Microwave oven (Level 4)
15. {{Icon|B}} Cavity magnetron (Level 4)
16. {{Icon|Start}} Mixer (appliance)
17. {{Icon|C}} Oven (Level 3)
18. {{Icon|C}} Convection oven
19. {{Icon|C}} Refrigerator (Level 4)
20. {{Icon|Start}} Rice cooker
21. {{Icon|C}} Sewing machine (Level 4)
22. {{Icon|Start}} Slow cooker
23. {{Icon|B}} Stove (Level 4)
24. {{Icon|C}} Electric stove
25. {{Icon|C}} Vacuum cleaner (Level 4)
26. {{Icon|C}} Washing machine (Level 4)
27. {{Icon|C}} Water dispenser
28. {{Icon|C}} Water heating

{{Vital article count|12}}

1. {{Icon|C}} Centrifuge (Level 4)
2. {{Icon|Start}} Ultracentrifuge
3. {{Icon|B}} Crane (machine) (Level 4)
4. {{Icon|C}} Forklift
5. {{Icon|C}} Mill (grinding)
6. {{Icon|C}} Machine tool
7. {{Icon|C}} Lathe (Level 4)
8. {{Icon|C}} Machine press (Level 4)
9. {{Icon|C}} Milling (machining)
10. {{Icon|C}} Computer numerical control
11. {{Icon|Start}} Potter's wheel (Level 4)
12. {{Icon|B}} Trip hammer

{{Vital article count|131}}

1. {{Icon|B}} Tool (Level 2)
2. {{Icon|Stub}} Lifting equipment
3. {{Icon|Start}} Hoist (device)
4. {{Icon|C}} Jack (device)

{{Vital article count|16}}

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

{{Vital article count|15}}

1. {{Icon|Start}} Compass (drawing tool)
2. {{Icon|C}} Colored pencil
3. {{Icon|C}} Crayon
4. {{Icon|Start}} Drafting machine
5. {{Icon|Start}} Drawing board
6. {{Icon|C}} Easel
7. {{Icon|Start}} Modelling clay (Level 4)
8. {{Icon|C}} Paint (Level 4)
9. {{Icon|C}} Acrylic paint
10. {{Icon|Start}} Enamel paint
11. {{Icon|C}} Varnish
12. {{Icon|Start}} Brush (Level 4)
13. {{Icon|Start}} Pastel (Level 4)
14. {{Icon|B}} {{Icon|DGA}} Pigment (Level 4)
15. {{Icon|Stub}} T-square

{{Vital article count|26}}

1. {{Icon|C}} Container (Level 4)
2. {{Icon|C}} Aluminum can
3. {{Icon|Start}} Bag
4. {{Icon|C}} Paper bag
5. {{Icon|C}} Plastic bag
6. {{Icon|B}} Bank vault
7. {{Icon|C}} Barrel
8. {{Icon|Start}} Basket
9. {{Icon|Start}} Bottle
10. {{Icon|Start}} Plastic bottle
11. {{Icon|Start}} Test tube
12. {{Icon|Start}} Vial
13. {{Icon|Start}} Water bottle
14. {{Icon|C}} Box
15. {{Icon|C}} Cardboard box
16. {{Icon|Start}} Coffin
17. {{Icon|C}} Crate
18. {{Icon|Start}} Bucket
19. {{Icon|Start}} Cage
20. {{Icon|Start}} Envelope
21. {{Icon|C}} Intermodal container
22. {{Icon|B}} Packaging
23. {{Icon|Start}} Pipette
24. {{Icon|C}} Pressure vessel
25. {{Icon|C}} Safe
26. {{Icon|B}} Steel and tin cans

{{Vital article count|17}}

1. {{Icon|C}} Adze
2. {{Icon|B}} Axe (Level 4)
3. {{Icon|Start}} Chalk line
4. {{Icon|C}} Chisel (Level 4)
5. {{Icon|Start}} Clamp (tool) (Level 4)
6. {{Icon|Start}} Crowbar
7. {{Icon|C}} Drilling (Level 4)
8. {{Icon|C}} Hammer (Level 4)
9. {{Icon|Start}} Hook (hand tool)
10. {{Icon|B}} Plane (tool) (Level 4)
11. {{Icon|C}} Pliers
12. {{Icon|C}} Saw (Level 4)
13. {{Icon|Start}} Scissors (Level 4)
14. {{Icon|C}} Screwdriver
15. {{Icon|C}} Stone tool
16. {{Icon|B}} Hand axe
17. {{Icon|C}} Wrench

{{Vital article count|3}}

1. {{Icon|C}} Breathalyzer
2. {{Icon|Start}} Physical restraint
3. {{Icon|C}} Handcuffs

{{Vital article count|20}}

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

{{Vital article count|19}}

1. {{Icon|Start}} Alidade
2. {{Icon|Start}} Circumferentor
3. {{Icon|Start}} Graphometer
4. {{Icon|C}} Gunter's chain
5. {{Icon|C}} Laser rangefinder
6. {{Icon|C}} Lidar
7. {{Icon|Start}} Level (optical instrument)
8. {{Icon|Start}} Inclinometer
9. {{Icon|C}} Topographic Abney level
10. {{Icon|Start}} Level staff
11. {{Icon|Start}} Plumb bob
12. {{Icon|Start}} Spirit level
13. {{Icon|Start}} Tiltmeter
14. {{Icon|Start}} Plane table
15. {{Icon|C}} Reticle
16. {{Icon|Start}} Stadimeter
17. {{Icon|Start}} Surveyor's wheel
18. {{Icon|C}} Theodolite (Level 4)
19. {{Icon|Start}} Total station

{{Vital article count|11}}

1. {{Icon|Start}} Blackboard
2. {{Icon|Start}} Eraser
3. {{Icon|C}} Ink (Level 4)
4. {{Icon|Start}} Pen (Level 4)
5. {{Icon|B}} Ballpoint pen
6. {{Icon|C}} {{Icon|FFA}} Fountain pen
7. {{Icon|Start}} Marker pen
8. {{Icon|C}} Quill
9. {{Icon|C}} Pencil (Level 4)
10. {{Icon|C}} Pencil sharpener
11. {{Icon|Start}} Whiteboard

{{Div col end}}

=Media and communication =

{{Vital article count|112}}

See also Arts: Literature; Society: Mass media
Physical and analog media are also included here

{{Div col|colwidth=15em}}

{{Vital article count|36}}

1. {{Icon|C}} Bulletin board
2. {{Icon|C}} Communications satellite (Level 4)
3. {{Icon|C}} Display device
4. {{Icon|C}} Cathode-ray tube (Level 4)
5. {{Icon|Start}} Flat-panel display (Level 4)
6. {{Icon|B}} Liquid-crystal display (Level 4)
7. {{Icon|C}} microLED
8. {{Icon|B}} OLED
9. {{Icon|C}} Plasma display
10. {{Icon|C}} Projection screen
11. {{Icon|Start}} Document
12. {{Icon|C}} Image (Level 4)
13. {{Icon|C}} Image scanner (Level 4)
14. {{Icon|B}} {{Icon|FFA}} Mail (Level 3)
15. {{Icon|C}} Courier
16. {{Icon|B}} Postage stamp (Level 4)
17. {{Icon|C}} Pigeon post
18. {{Icon|Start}} Autopen
19. {{Icon|C}} Portable media player
20. {{Icon|C}} Sound recording and reproduction (Level 4)
21. {{Icon|B}} {{Icon|FFA}} Compact Cassette
22. {{Icon|C}} Loudspeaker (Level 4)
23. {{Icon|C}} Phone connector (audio)
24. {{Icon|B}} Phonograph
25. {{Icon|C}} {{Icon|FFA}} Phonograph record
26. {{Icon|C}} Headphones
27. {{Icon|C}} Microphone (Level 4)
28. {{Icon|C}} {{Icon|FFA}} Speech synthesis (Level 4)
29. {{Icon|C}} {{Icon|FFA}} Typewriter (Level 4)
30. {{Icon|C}} QWERTY
31. {{Icon|C}} Video (Level 4)
32. {{Icon|C}} Digital video
33. {{Icon|C}} Digital video recorder
34. {{Icon|Start}} Video camera (Level 4)
35. {{Icon|C}} Videocassette recorder
36. {{Icon|C}} Wireless

{{Vital article count|35}}

1. {{Icon|C}} Broadcasting (Level 3)
2. {{Icon|C}} Radio (Level 3)
3. {{Icon|B}} Amateur radio (Level 4)
4. {{Icon|C}} Antenna tuner
5. {{Icon|B}} Radio broadcasting (Level 4)
6. {{Icon|C}} FM broadcasting
7. {{Icon|B}} AM broadcasting
8. {{Icon|C}} Shortwave radio
9. {{Icon|B}} Radio receiver
10. {{Icon|B}} Crystal radio
11. {{Icon|B}} Superheterodyne receiver
12. {{Icon|C}} Transistor radio
13. {{Icon|Start}} Software-defined radio
14. {{Icon|C}} Transmitter
15. {{Icon|B}} Walkie-talkie
16. {{Icon|C}} {{Icon|DGA}} Television (Level 3)
17. {{Icon|C}} Analog television
18. {{Icon|C}} NTSC
19. {{Icon|C}} PAL
20. {{Icon|C}} SECAM
21. {{Icon|B}} Color television
22. {{Icon|C}} Digital television
23. {{Icon|C}} ATSC standards
24. {{Icon|C}} Digital multimedia broadcasting
25. {{Icon|Start}} Digital Terrestrial Multimedia Broadcast
26. {{Icon|C}} DVB
27. {{Icon|C}} ISDB
28. {{Icon|C}} High-definition television
29. {{Icon|C}} Ultra-high-definition television
30. {{Icon|C}} Mechanical television
31. {{Icon|C}} Cable television (Level 4)
32. {{Icon|C}} Satellite television (Level 4)
33. {{Icon|C}} Streaming media
34. {{Icon|C}} Streaming television
35. {{Icon|C}} Terrestrial television

{{Vital article count|18}}

1. {{Icon|C}} Printing (Level 3)
2. {{Icon|B}} Audiobook
3. {{Icon|C}} Book (Level 2)
4. {{Icon|C}} ISBN
5. {{Icon|Start}} Blueprint
6. {{Icon|C}} Ebook
7. {{Icon|Start}} E-reader
8. {{Icon|C}} Incunable
9. {{Icon|C}} Manuscript
10. {{Icon|Start}} Codex
11. {{Icon|Start}} Scroll (Level 4)
12. {{Icon|C}} Photocopier (Level 4)
13. {{Icon|C}} Printer (computing) (Level 4)
14. {{Icon|B}} Printing press (Level 4)
15. {{Icon|C}} Font
16. {{Icon|C}} Movable type
17. {{Icon|C}} Print on demand
18. {{Icon|Start}} Typesetting

{{Vital article count|23}}

1. {{Icon|C}} {{Icon|DGA}} Telecommunications (Level 3)
2. {{Icon|Start}} Demodulation
3. {{Icon|C}} Fax
4. {{Icon|C}} Signal modulation (Level 4)
5. {{Icon|C}} Amplitude modulation
6. {{Icon|Start}} Frequency-hopping spread spectrum
7. {{Icon|B}} Frequency modulation
8. {{Icon|Start}} Frequency-shift keying
9. {{Icon|Start}} Phase modulation
10. {{Icon|B}} Pager
11. {{Icon|B}} Submarine communications cable
12. {{Icon|B}} Telegraphy (Level 4)
13. {{Icon|B}} Electrical telegraph
14. {{Icon|Start}} Flag semaphore
15. {{Icon|C}} Telephony
16. {{Icon|C}} Code-division multiple access
17. {{Icon|C}} Telephone (Level 3)
18. {{Icon|C}} Landline
19. {{Icon|C}} Mobile phone (Level 3)
20. {{Icon|C}} Satellite phone
21. {{Icon|C}} SIM card
22. {{Icon|C}} Text messaging (Level 4)
23. {{Icon|C}} Videotelephony

{{Div col end}}

=Medical technology =

{{Vital article count|43}}

{{div col|colwidth=15em}}

{{Vital article count|4}}

1. {{Icon|B}} DNA profiling (Level 4)
2. {{Icon|B}} Electrocardiography (Level 4)
3. {{Icon|B}} Electroencephalography
4. {{Icon|C}} Endoscopy (Level 4)

{{Vital article count|6}}

1. {{Icon|B}} Medical imaging (Level 3)
2. {{Icon|GA}} CT scan
3. {{Icon|GA}} Magnetic resonance imaging (Level 4)
4. {{Icon|C}} Medical ultrasound (Level 4)
5. {{Icon|B}} Positron emission tomography
6. {{Icon|C}} Radiography (Level 4)

{{Vital article count|15}}

1. {{Icon|B}} Pacemaker
2. {{Icon|C}} Artificial organ (Level 4)
3. {{Icon|C}} Catheter
4. {{Icon|Start}} Cervical collar
5. {{Icon|B}} Dentures (Level 4)
6. {{Icon|B}} Hearing aid
7. {{Icon|Start}} Orthopedic boot
8. {{Icon|B}} Orthopedic cast
9. {{Icon|C}} Prosthesis (Level 4)
10. {{Icon|Start}} Reflex hammer
11. {{Icon|Stub}} Sling (medicine)
12. {{Icon|Start}} Splint (medicine)
13. {{Icon|B}} Stethoscope (Level 4)
14. {{Icon|B}} Tourniquet
15. {{Icon|C}} Ventilator

{{Vital article count|7}}

1. {{Icon|C}} Adhesive bandage
2. {{Icon|Start}} Bandage (Level 4)
3. {{Icon|C}} Dressing (medicine)
4. {{Icon|C}} Hypodermic needle
5. {{Icon|Start}} Retainer (orthodontics)
6. {{Icon|C}} Stretcher
7. {{Icon|C}} Syringe (Level 4)

{{Vital article count|2}}

1. {{Icon|Start}} Crutch
2. {{Icon|C}} Wheelchair (Level 4)

{{Vital article count|5}}

1. {{Icon|Start}} Forceps
2. {{Icon|C}} Scalpel
3. {{Icon|Start}} Surgical suture
4. {{Icon|C}} Retractor (medicine)
5. {{Icon|Start}} Tweezers

{{Vital article count|2}}

1. {{Icon|B}} Cardiopulmonary bypass (Level 4)
2. {{Icon|C}} Kidney dialysis

{{Vital article count|2}}

1. {{Icon|B}} {{Icon|DGA}} Ambulance (Level 4)
2. {{Icon|B}} Air medical services

{{div col end}}

=Military technology =

{{Vital article count|305}}

{{Div col|colwidth=15em}}

{{Vital article count|7}}

1. {{Icon|C}} Weapon (Level 3)
2. {{Icon|C}} Military technology (Level 4)
3. {{Icon|Start}} Booby trap
4. {{Icon|Start}} Punji stick
5. {{Icon|C}} Siege engine
6. {{Icon|Start}} Battering ram (Level 4)
7. {{Icon|B}} Siege tower

{{Vital article count|28}}

1. {{Icon|C}} Stealth technology (Level 4)
2. {{Icon|C}} Missile defense

{{Vital article count|11}}

1. {{Icon|C}} Armour (Level 3)
2. {{Icon|Start}} Body armor
3. {{Icon|C}} Bulletproof vest (Level 4)
4. {{Icon|C}} Chain mail (Level 4)
5. {{Icon|C}} Plate armour (Level 4)
6. {{Icon|C}} Vehicle armour
7. {{Icon|C}} Reactive armour
8. {{Icon|Start}} Helmet (Level 4)
9. {{Icon|Start}} Combat helmet
10. {{Icon|C}} Shield (Level 4)
11. {{Icon|C}} Scutum

{{Vital article count|15}}

1. {{Icon|C}} Fortification (Level 3)
2. {{Icon|Start}} Bastion fort
3. {{Icon|C}} Glacis
4. {{Icon|Start}} Ravelin
5. {{Icon|Start}} Tenaille
6. {{Icon|FA}} Castle (Level 4)
7. {{Icon|GA}} Motte-and-bailey castle
8. {{Icon|C}} Bastion
9. {{Icon|Stub}} Curtain wall (fortification)
10. {{Icon|Start}} Gatehouse
11. {{Icon|GA}} Keep
12. {{Icon|C}} Defensive wall (Level 4)
13. {{Icon|Start}} Palisade
14. {{Icon|Start}} Rampart (fortification)
15. {{Icon|B}} Moat

{{Vital article count|39}}

1. {{Icon|Start}} Battle axe (Level 4)
2. {{Icon|Start}} Brass knuckles
3. {{Icon|B}} Club (weapon) (Level 4)
4. {{Icon|B}} Baton (law enforcement)
5. {{Icon|C}} Mace (bludgeon)
6. {{Icon|Start}} War hammer
7. {{Icon|Start}} Flail (weapon)
8. {{Icon|C}} Nunchaku
9. {{Icon|Start}} Sai (weapon)
10. {{Icon|Start}} Tonfa

{{Vital article count|9}}

1. {{Icon|Start}} Bayonet (Level 4)
2. {{Icon|C}} Knife (Level 3)
3. {{Icon|B}} Dagger (Level 4)
4. {{Icon|Start}} Hunting knife
5. {{Icon|B}} Pocketknife
6. {{Icon|C}} Swiss Army knife
7. {{Icon|C}} Switchblade
8. {{Icon|Start}} Throwing knife
9. {{Icon|Start}} Utility knife

{{Vital article count|9}}

1. {{Icon|Start}} Polearm
2. {{Icon|C}} Dagger-axe
3. {{Icon|C}} Ji (polearm)
4. {{Icon|C}} Halberd
5. {{Icon|Start}} Lance
6. {{Icon|C}} Naginata
7. {{Icon|Stub}} Partisan (weapon)
8. {{Icon|C}} Spear (Level 4)
9. {{Icon|C}} Pike (weapon)

{{Vital article count|11}}

1. {{Icon|B}} Sword (Level 4)
2. {{Icon|Start}} Claymore
3. {{Icon|C}} Cutlass
4. {{Icon|B}} Dao (Chinese sword)
5. {{Icon|C}} Gladius
6. {{Icon|B}} Katana (Level 4)
7. {{Icon|C}} Longsword
8. {{Icon|C}} Rapier (Level 4)
9. {{Icon|C}} Sabre
10. {{Icon|Start}} Scimitar
11. {{Icon|Start}} Talwar

{{Vital article count|101}}

1. {{Icon|C}} Boomerang (Level 4)
2. {{Icon|C}} Gun (Level 4)
3. {{Icon|C}} Javelin
4. {{Icon|Start}} Harpoon
5. {{Icon|C}} Spear-thrower
6. {{Icon|B}} Sling (weapon) (Level 4)
7. {{Icon|Start}} Slingshot

{{Vital article count|11}}

1. {{Icon|C}} Bow and arrow (Level 4)
2. {{Icon|Start}} Compound bow
3. {{Icon|C}} Longbow
4. {{Icon|C}} Recurve bow
5. {{Icon|B}} Arrow
6. {{Icon|Start}} Arrowhead
7. {{Icon|Start}} Fletching
8. {{Icon|Start}} Bowstring
9. {{Icon|C}} {{Icon|DGA}} Crossbow (Level 4)
10. {{Icon|Start}} Repeating crossbow
11. {{Icon|Start}} Quiver

{{Vital article count|12}}

1. {{Icon|C}} Artillery (Level 4)
2. {{Icon|FA}} Cannon (Level 4)
3. {{Icon|Start}} Field gun
4. {{Icon|B}} Howitzer
5. {{Icon|Start}} Limbers and caissons
6. {{Icon|C}} Mortar (weapon) (Level 4)
7. {{Icon|C}} Catapult (Level 4)
8. {{Icon|Start}} Ballista (Level 4)
9. {{Icon|Start}} Polybolos
10. {{Icon|Start}} Mangonel
11. {{Icon|Start}} Onager (weapon)
12. {{Icon|B}} Trebuchet

{{Vital article count|59}}

1. {{Icon|C}} Firearm (Level 3)
2. {{Icon|C}} Fire lance
3. {{Icon|Start}} Hand cannon
4. {{Icon|C}} Handgun (Level 4)
5. {{Icon|B}} Revolver
6. {{Icon|C}} Pistol
7. {{Icon|Start}} Long gun
8. {{Icon|Start}} Arquebus
9. {{Icon|Start}} Musket (Level 4)
10. {{Icon|B}} Rifle (Level 4)
11. {{Icon|Start}} Assault rifle (Level 4)
12. {{Icon|Start}} Sniper rifle
13. {{Icon|B}} Shotgun (Level 4)
14. {{Icon|Start}} Submachine gun
15. {{Icon|C}} Machine gun (Level 4)
16. {{Icon|C}} Autocannon
17. {{Icon|Start}} Rotary cannon

{{Vital article count|14}}

1. {{Icon|C}} Ammunition (Level 4)
2. {{Icon|C}} Gunpowder (Level 3)
3. {{Icon|Start}} Powder keg
4. {{Icon|C}} Smokeless powder
5. {{Icon|C}} Bullet
6. {{Icon|Start}} Armor-piercing bullet
7. {{Icon|Start}} Hollow-point bullet
8. {{Icon|Start}} Tracer ammunition
9. {{Icon|Start}} Flechette
10. {{Icon|C}} Cartridge (firearms)
11. {{Icon|Start}} Sabot (firearms)
12. {{Icon|C}} Shotgun cartridge
13. {{Icon|C}} Shot (pellet)
14. {{Icon|C}} Shotgun slug

{{Vital article count|19}}

1. {{Icon|C}} Breechloader
2. {{Icon|Start}} Action (firearms)
3. {{Icon|Start}} Automatic firearm
4. {{Icon|Start}} Bolt action
5. {{Icon|Stub}} Burst mode (weapons)
6. {{Icon|C}} Repeating firearm
7. {{Icon|Start}} Select fire
8. {{Icon|B}} Semi-automatic firearm
9. {{Icon|Start}} Firing pin
10. {{Icon|Start}} Magazine (firearms)
11. {{Icon|Start}} Gun barrel
12. {{Icon|C}} Multiple-barrel firearm
13. {{Icon|C}} Rifling
14. {{Icon|Start}} Muzzleloader
15. {{Icon|C}} Flintlock
16. {{Icon|Start}} Matchlock
17. {{Icon|Start}} Percussion cap
18. {{Icon|C}} Wheellock
19. {{Icon|C}} Trigger (firearms)

{{Vital article count|9}}

1. {{Icon|C}} {{Icon|FFA}} AK-47
2. {{Icon|C}} Chassepot
3. {{Icon|C}} Dreyse needle gun
4. {{Icon|C}} Gatling gun
5. {{Icon|B}} Glock
6. {{Icon|Start}} M134 Minigun
7. {{Icon|C}} M4 carbine
8. {{Icon|C}} {{Icon|DGA}} M16 rifle
9. {{Icon|B}} M1911 pistol

{{Vital article count|12}}

1. {{Icon|B}} Missile (Level 4)
2. {{Icon|C}} Air-to-air missile
3. {{Icon|C}} Anti-tank guided missile
4. {{Icon|Start}} Cruise missile
5. {{Icon|C}} Intercontinental ballistic missile
6. {{Icon|Start}} Rocket-propelled grenade
7. {{Icon|C}} Surface-to-air missile
8. {{Icon|B}} Man-portable air-defense system
9. {{Icon|C}} Missile guidance
10. {{Icon|C}} Multiple rocket launcher
11. {{Icon|B}} V-2 rocket
12. {{Icon|Start}} Warhead

{{Vital article count|15}}

1. {{Icon|C}} Bomb (Level 3)
2. {{Icon|C}} Improvised explosive device (Level 4)
3. {{Icon|C}} Car bomb
4. {{Icon|Start}} Detonator
5. {{Icon|C}} Fuze
6. {{Icon|Start}} Contact fuze
7. {{Icon|C}} Proximity fuze
8. {{Icon|C}} Cluster munition (Level 4)
9. {{Icon|C}} Grenade (Level 4)
10. {{Icon|B}} Land mine (Level 4)
11. {{Icon|Start}} Plastic explosive
12. {{Icon|C}} Shaped charge
13. {{Icon|C}} Explosively formed penetrator
14. {{Icon|C}} High-explosive anti-tank
15. {{Icon|C}} Thermobaric weapon

{{Vital article count|5}}

1. {{Icon|B}} Greek fire
2. {{Icon|C}} Flamethrower
3. {{Icon|B}} Molotov cocktail
4. {{Icon|Start}} Napalm (Level 4)
5. {{Icon|C}} {{Icon|DGA}} White phosphorus munition

{{Vital article count|11}}

1. {{Icon|GA}} {{Icon|A}} Horses in warfare (Level 4)
2. {{Icon|C}} Caltrop
3. {{Icon|C}} Chariot (Level 4)
4. {{Icon|C}} Infantry fighting vehicle
5. {{Icon|C}} Armoured personnel carrier
6. {{Icon|C}} Technical (vehicle)
7. {{Icon|C}} {{Icon|FFA}} Tank (Level 4)
8. {{Icon|C}} Main battle tank
9. {{Icon|C}} {{Icon|FFA}} War elephant (Level 4)

{{Vital article count|2}}

1. {{Icon|C}} M1 Abrams
2. {{Icon|B}} M4 Sherman

{{Vital article count|46}}

1. {{Icon|Start}} Military aviation
2. {{Icon|Start}} Military aircraft (Level 4)
3. {{Icon|Start}} Military glider
4. {{Icon|Start}} Military helicopter
5. {{Icon|C}} Attack aircraft (Level 4)
6. {{Icon|C}} Gunship
7. {{Icon|Start}} Bomber (Level 4)
8. {{Icon|C}} Strategic bomber
9. {{Icon|C}} Heavy bomber
10. {{Icon|Start}} Medium bomber
11. {{Icon|Start}} Interdictor
12. {{Icon|Start}} Penetrator (aircraft)
13. {{Icon|C}} Fighter aircraft (Level 4)
14. {{Icon|Start}} Air superiority fighter
15. {{Icon|C}} Interceptor aircraft
16. {{Icon|C}} Fighter-bomber
17. {{Icon|Start}} Strike fighter
18. {{Icon|Start}} Electronic-warfare aircraft
19. {{Icon|Start}} Maritime patrol aircraft
20. {{Icon|C}} Multirole combat aircraft
21. {{Icon|LIST}} Military transport aircraft
22. {{Icon|C}} Airborne early warning and control
23. {{Icon|C}} Reconnaissance aircraft
24. {{Icon|Start}} Surveillance aircraft
25. {{Icon|Stub}} Experimental aircraft
26. {{Icon|C}} Aerial refueling

{{Vital article count|20}}

1. {{Icon|GA}} Boeing AH-64 Apache
2. {{Icon|B}} Boeing B-29 Superfortress
3. {{Icon|GA}} Enola Gay
4. {{Icon|GA}} {{Icon|A}} Boeing B-52 Stratofortress
5. {{Icon|GA}} Dassault Rafale
6. {{Icon|B}} Embraer EMB 314 Super Tucano
7. {{Icon|B}} Eurofighter Typhoon
8. {{Icon|GA}} Fairchild Republic A-10 Thunderbolt II
9. {{Icon|C}} {{Icon|DGA}} General Dynamics F-16 Fighting Falcon
10. {{Icon|C}} Lockheed C-130 Hercules
11. {{Icon|B}} {{Icon|DGA}} Lockheed SR-71 Blackbird
12. {{Icon|GA}} {{Icon|FFA}} Lockheed Martin F-35 Lightning II
13. {{Icon|B}} McDonnell Douglas F-15 Eagle
14. {{Icon|B}} Mikoyan-Gurevich MiG-21
15. {{Icon|C}} Mil Mi-24
16. {{Icon|C}} North American P-51 Mustang
17. {{Icon|B}} Northrop B-2 Spirit
18. {{Icon|GA}} Panavia Tornado
19. {{Icon|GA}} Rockwell B-1 Lancer
20. {{Icon|B}} Sikorsky UH-60 Black Hawk

{{Vital article count|32}}

1. {{Icon|C}} Warship (Level 4)
2. {{Icon|C}} {{Icon|DGA}} Aircraft carrier (Level 4)
3. {{Icon|GA}} Nimitz-class aircraft carrier
4. {{Icon|FA}} Battleship (Level 4)
5. {{Icon|FA}} Dreadnought
6. {{Icon|GA}} {{Icon|FFA}} Iowa-class battleship
7. {{Icon|FA}} Yamato-class battleship
8. {{Icon|C}} Corvette
9. {{Icon|C}} Cruiser
10. {{Icon|C}} Destroyer
11. {{Icon|GA}} Arleigh Burke-class destroyer
12. {{Icon|C}} Frigate
13. {{Icon|C}} Galleon
14. {{Icon|B}} Galley (Level 4)
15. {{Icon|B}} Trireme
16. {{Icon|C}} Gunboat
17. {{Icon|C}} {{Icon|FFA}} Ironclad warship
18. {{Icon|Start}} Ship of the line (Level 4)
19. {{Icon|C}} {{Icon|FFA}} Submarine (Level 4)
20. {{Icon|C}} Akula-class submarine
21. {{Icon|C}} Borei-class submarine
22. {{Icon|C}} Ohio-class submarine
23. {{Icon|B}} U-boat
24. {{Icon|B}} Vanguard-class submarine
25. {{Icon|Start}} Boom (navigational barrier)
26. {{Icon|C}} Depth charge
27. {{Icon|C}} Naval mine (Level 4)
28. {{Icon|C}} Torpedo (Level 4)

{{Vital article count|4}}

1. {{Icon|C}} CSS Virginia
2. {{Icon|FA}} USS Arizona
3. {{Icon|FA}} USS Constitution
4. {{Icon|GA}} USS Monitor

{{Vital article count|9}}

1. {{Icon|C}} Non-lethal weapon
2. {{Icon|B}} Active Denial System
3. {{Icon|Start}} Baton round
4. {{Icon|C}} Sonic weapon
5. {{Icon|C}} Stun grenade
6. {{Icon|C}} Taser
7. {{Icon|C}} Tear gas
8. {{Icon|C}} Pepper spray
9. {{Icon|C}} Water cannon

{{Vital article count|12}}

1. {{Icon|C}} Weapon of mass destruction (Level 4)
2. {{Icon|B}} Biological warfare (Level 4)
3. {{Icon|C}} Entomological warfare
4. {{Icon|C}} Chemical weapon (Level 4)
5. {{Icon|Start}} Blister agent
6. {{Icon|Start}} Blood agent
7. {{Icon|C}} Nerve agent
8. {{Icon|C}} Dirty bomb
9. {{Icon|C}} {{Icon|FFA}} Nuclear weapon (Level 4)
10. {{Icon|C}} Thermonuclear weapon (Level 4)
11. {{Icon|C}} Nuclear weapon design
12. {{Icon|C}} Nuclear proliferation

{{Div col end}}

=Navigation and timekeeping =

{{Vital article count|83}}

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

{{Div col|colwidth=15em}}

{{Vital article count|19}}

1. {{Icon|B}} Navigation (Level 3)
2. {{Icon|C}} Compass (Level 3)
3. {{Icon|C}} Compass rose
4. {{Icon|C}} Celestial navigation (Level 4)
5. {{Icon|Start}} Backstaff
6. {{Icon|Start}} Jacob's staff
7. {{Icon|C}} Octant (instrument)
8. {{Icon|C}} Quadrant (instrument)
9. {{Icon|C}} Sextant (Level 4)
10. {{Icon|C}} Dead reckoning (Level 4)
11. {{Icon|B}} Gyroscope (Level 4)
12. {{Icon|C}} Satellite navigation (Level 4)
13. {{Icon|C}} BeiDou
14. {{Icon|B}} Galileo (satellite navigation)
15. {{Icon|C}} Global Positioning System (Level 4)
16. {{Icon|B}} GLONASS
17. {{Icon|Start}} Satellite navigation device
18. {{Icon|B}} {{Icon|FFA}} Radar (Level 3)
19. {{Icon|B}} Sonar

{{Vital article count|64}}

1. {{Icon|B}} Astronomical year numbering
2. {{Icon|C}} Calendar (Level 3)
3. {{Icon|C}} Clock (Level 3)
4. {{Icon|C}} Leap year (Level 4)
5. {{Icon|B}} Leap second
6. {{Icon|Start}} Future
7. {{Icon|C}} Present
8. {{Icon|B}} Past
9. {{Icon|C}} Standard time
10. {{Icon|Start}} Timeline
11. {{Icon|C}} Time standard
12. {{Icon|B}} Coordinated Universal Time (Level 4)
13. {{Icon|B}} Greenwich Mean Time
14. {{Icon|C}} International Atomic Time
15. {{Icon|B}} Time zone (Level 4)
16. {{Icon|B}} {{Icon|FFA}} Daylight saving time (Level 4)

{{Vital article count|12}}

1. {{Icon|Start}} Solar calendar
2. {{Icon|B}} Gregorian calendar (Level 4)
3. {{Icon|C}} {{Icon|FFA}} Anno Domini
4. {{Icon|B}} Common Era
5. {{Icon|B}} Julian calendar (Level 4)
6. {{Icon|C}} Lunisolar calendar
7. {{Icon|B}} Buddhist calendar
8. {{Icon|C}} Chinese calendar (Level 4)
9. {{Icon|B}} Hindu calendar
10. {{Icon|C}} Lunar calendar
11. {{Icon|B}} {{Icon|FFA}} Hebrew calendar
12. {{Icon|B}} Islamic calendar (Level 4)

{{Vital article count|16}}

1. {{Icon|C}} 12-hour clock
2. {{Icon|C}} 24-hour clock
3. {{Icon|B}} Alarm clock
4. {{Icon|B}} Atomic clock (Level 4)
5. {{Icon|C}} Digital clock
6. {{Icon|C}} Clock face
7. {{Icon|C}} Hourglass
8. {{Icon|B}} Marine chronometer
9. {{Icon|B}} Pendulum clock
10. {{Icon|B}} Pendulum (Level 4)
11. {{Icon|C}} Quartz clock
12. {{Icon|B}} Sundial (Level 4)
13. {{Icon|B}} Watch (Level 4)
14. {{Icon|C}} Pocket watch
15. {{Icon|Start}} Stopwatch
16. {{Icon|B}} Water clock

{{Vital article count|12}}

1. {{Icon|Start}} January
2. {{Icon|C}} February
3. {{Icon|C}} March
4. {{Icon|C}} April
5. {{Icon|Start}} May
6. {{Icon|GA}} June
7. {{Icon|C}} July
8. {{Icon|Start}} August
9. {{Icon|Start}} September
10. {{Icon|Start}} October
11. {{Icon|Start}} November
12. {{Icon|Start}} December

{{Vital article count|8}}

1. {{Icon|B}} Names of the days of the week
2. {{Icon|Start}} Monday
3. {{Icon|Start}} Tuesday
4. {{Icon|Start}} Wednesday
5. {{Icon|Start}} Thursday
6. {{Icon|Start}} Friday
7. {{Icon|Start}} Saturday
8. {{Icon|Start}} Sunday

{{Div col end}}

=Optical technology =

{{Vital article count|60}}

{{div col|colwidth=15em}}

{{Vital article count|15}}

1. {{Icon|B}} Lens (Level 3)
2. {{Icon|Start}} Fresnel lens
3. {{Icon|Start}} Thin lens
4. {{Icon|Start}} Collimator
5. {{Icon|C}} Diffraction grating (Level 4)
6. {{Icon|B}} Mirror (Level 4)
7. {{Icon|C}} One-way mirror
8. {{Icon|C}} Optical coating
9. {{Icon|B}} Anti-reflective coating (Level 4)
10. {{Icon|C}} {{Icon|DGA}} Optical fiber (Level 4)
11. {{Icon|Start}} Optical filter
12. {{Icon|C}} Optical isolator
13. {{Icon|B}} Polarizer (Level 4)
14. {{Icon|Start}} Prism (optics) (Level 4)
15. {{Icon|Start}} Pentaprism

{{Vital article count|16}}

1. {{Icon|Start}} Autocollimator
2. {{Icon|C}} Binoculars (Level 4)
3. {{Icon|B}} {{Icon|DGA}} Glasses (Level 4)
4. {{Icon|C}} Bifocals
5. {{Icon|B}} {{Icon|DGA}} Contact lens
6. {{Icon|GA}} Interferometry (Level 4)
7. {{Icon|Start}} Loupe
8. {{Icon|Start}} Magnifying glass
9. {{Icon|C}} Microscope (Level 3)
10. {{Icon|B}} Electron microscope (Level 4)
11. {{Icon|B}} Scanning electron microscope
12. {{Icon|B}} Transmission electron microscopy
13. {{Icon|C}} Scanning tunneling microscope
14. {{Icon|B}} Optical microscope (Level 4)
15. {{Icon|C}} Periscope
16. {{Icon|Start}} Projector

{{Vital article count|9}}

1. {{Icon|C}} Laser (Level 3)
2. {{Icon|Start}} Solid-state laser
3. {{Icon|C}} Ruby laser
4. {{Icon|B}} Nd:YAG laser
5. {{Icon|Start}} Dye laser
6. {{Icon|Start}} Gas laser
7. {{Icon|C}} Carbon-dioxide laser
8. {{Icon|C}} Helium–neon laser
9. {{Icon|C}} Maser

{{Vital article count|20}}

1. {{Icon|C}} Camera (Level 3)
2. {{Icon|Start}} Hidden camera
3. {{Icon|C}} Instant camera
4. {{Icon|C}} Rangefinder camera
5. {{Icon|C}} Single-lens reflex camera
6. {{Icon|B}} Digital single-lens reflex camera
7. {{Icon|Start}} Twin-lens reflex camera
8. {{Icon|C}} Closed-circuit television
9. {{Icon|C}} Holography (Level 4)
10. {{Icon|C}} Photographic film (Level 4)
11. {{Icon|Start}} Photographic plate
12. {{Icon|B}} Photography (Level 3)
13. {{Icon|C}} Digital photography (Level 4)
14. {{Icon|Start}} Fine-art photography (Level 4)
15. {{Icon|C}} Landscape photography
16. {{Icon|C}} Portrait photography
17. {{Icon|C}} Street photography
18. {{Icon|C}} Exposure (photography)
19. {{Icon|C}} Flash (photography)
20. {{Icon|B}} Multi-exposure HDR capture

{{div col end}}

=

{{Vital article count|24}}

1. {{Icon|B}} Dubai Metro
2. {{Icon|B}} Transjakarta
3. {{Icon|C}} {{Icon|FFA}} Mass Rapid Transit (Singapore)
4. {{Icon|B}} Taipei Metro
5. {{Icon|Start}} Tehran Metro

{{Vital article count|6}}

1. {{Icon|B}} Beijing Subway
2. {{Icon|Start}} Chongqing Rail Transit
3. {{Icon|B}} Guangzhou Metro
4. {{Icon|C}} {{Icon|FFA}} MTR
5. {{Icon|B}} Shanghai Metro
6. {{Icon|C}} Shenzhen Metro

{{Vital article count|5}}

1. {{Icon|C}} {{Icon|DGA}} Delhi Metro
2. {{Icon|Start}} Hyderabad Metro
3. {{Icon|GA}} Kolkata Metro
4. {{Icon|C}} Mumbai Metro
5. {{Icon|B}} Namma Metro

{{Vital article count|6}}

1. {{Icon|Start}} Hiroshima Electric Railway
2. {{Icon|Start}} Nagoya Municipal Subway
3. {{Icon|Start}} Osaka Metro
4. {{Icon|Start}} Sapporo Municipal Subway
5. {{Icon|Start}} Toei Subway
6. {{Icon|C}} Tokyo Metro

{{Vital article count|2}}

1. {{Icon|C}} Busan Metro
2. {{Icon|C}} Seoul Metropolitan Subway

{{Vital article count|26}}

1. {{Icon|C}} Athens Metro
2. {{Icon|C}} Brussels Metro
3. {{Icon|C}} Budapest Metro
4. {{Icon|B}} Istanbul Metro
5. {{Icon|B}} Kyiv Metro
6. {{Icon|B}} Prague Metro
7. {{Icon|C}} Vienna U-Bahn

{{Vital article count|3}}

1. {{Icon|Start}} Lyon Metro
2. {{Icon|B}} Paris Métro
3. {{Icon|C}} {{Icon|DGA}} Réseau Express Régional

{{Vital article count|3}}

1. {{Icon|B}} Berlin U-Bahn
2. {{Icon|B}} Munich U-Bahn
3. {{Icon|C}} S-Bahn

{{Vital article count|2}}

1. {{Icon|B}} Milan Metro
2. {{Icon|Start}} Rome Metro

{{Vital article count|2}}

1. {{Icon|C}} Amsterdam Metro
2. {{Icon|C}} Rotterdam Metro

{{Vital article count|2}}

1. {{Icon|C}} Moscow Metro
2. {{Icon|C}} Saint Petersburg Metro

{{Vital article count|4}}

1. {{Icon|C}} {{Icon|DGA}} Copenhagen Metro
2. {{Icon|B}} Helsinki Metro
3. {{Icon|GA}} Oslo Metro
4. {{Icon|C}} Stockholm Metro

{{Vital article count|2}}

1. {{Icon|C}} Barcelona Metro
2. {{Icon|B}} Madrid Metro

{{Vital article count|1}}

1. {{Icon|B}} {{Icon|FFA}} London Underground (Level 4)

{{Vital article count|11}}

1. {{Icon|B}} Acela
2. {{Icon|B}} AVE
3. {{Icon|C}} China Railway High-speed
4. {{Icon|C}} {{Icon|DGA}} Eurostar
5. {{Icon|Start}} Frecciarossa
6. {{Icon|B}} {{Icon|DGA}} Intercity Express
7. {{Icon|B}} Korea Train Express
8. {{Icon|B}} Shinkansen (Level 4)
9. {{Icon|GA}} Taiwan High Speed Rail
10. {{Icon|B}} {{Icon|FFA}} TGV
11. {{Icon|Start}} Sapsan

{{Vital article count|4}}

1. {{Icon|Start}} Trans-Australian Railway
2. {{Icon|C}} Chinese Eastern Railway
3. {{Icon|Start}} Trans-Mongolian Railway
4. {{Icon|B}} {{Icon|DGA}} Trans-Siberian Railway (Level 4)

{{Vital article count|1}}

1. {{Icon|C}} Orient Express

{{div col end}}

{{Core topics}}

All languages should have

Vital articles