Wp/brh/Ŧaeknálojí (Ridband)

Technology

1. Technology
2. History of technology
3. Engineering
4. Artificial intelligence
5. Biotechnology
6. Genetic Engineering
7. Nanotechnology
8. Nuclear technology
9. Cotton
10. Tool
11. Irrigation
    1. Plough

Electronics

1. Electronics
   1. Capacitance
   2. Gain
   3. Electric charge
   4. Current (electricity)
   5. Electrical resistance
   6. Frequency
   7. Inductance
   8. Reactance
2. Components
   1. Battery (electricity)
   2. Capacitor
   3. Diode
   4. Incandescent light bulb
   5. Inductor
   6. Integrated circuit
   7. Resistor
   8. Semiconductor
   9. Transformer
   10. Transistor

Energy and raw materials

1. Electricity
2. Fossil fuel
   1. Coal
   2. Petroleum
3. Geothermal power
4. Hydropower
5. Nuclear power
6. Renewable energy
7. Solar power
8. Wind power
9. Paper
10. Wood

Food and health

1. Pasteurization
2. Penicillin
3. Refrigerator
4. Stove
5. Vaccine
6. X-ray

Information technology

1. Information technology
2. Computer science
   1. Algorithm
   2. Compiler
   3. Computer graphics
   4. Numerical integration
   5. Search engine
3. Abacus
4. Calculator
5. Computer
   1. Booting
   2. Hard disk
   3. Motherboard
   4. Central processing unit
   5. RAM
6. Cryptography
   1. Encryption
   2. Password
7. Operating system
   1. BSD / Unix
   2. Linux
   3. Mac OS
   4. Microsoft Windows
   5. MS-DOS
   6. Multics
   7. OpenVMS
8. Programming language
   1. BASIC
   2. C
   3. C++
   4. COBOL
   5. Python
   6. FORTRAN
   7. Java
   8. Javascript
   9. PHP
   10. SQL
9. Programming paradigm
   1. Functional programming
   2. Object oriented programming
   3. Structured programming
10. Software
    1. Database
    2. Open-source software
    3. Spreadsheet
    4. Word processor
11. User interface
    1. Keyboard
    2. Computer monitor
    3. Mouse (computing)
    4. Touch screen

Material and chemical

1. Fire
2. Explosive material
   1. Dynamite
   2. Gasoline
   3. Gunpowder
   4. Kerosene
3. Metallurgy
4. Plastic
5. Rubber

Mechanical and structural engineering

1. Mechanical engineering
2. Engine
   1. Electric motor
   2. Internal combustion engine
   3. Jet engine
   4. Steam engine
3. Simple machines:
   1. Inclined plane
   2. Lever
   3. Pulley
   4. Screw
   5. Wedge
   6. Wheel
4. Structural engineering
5. Arch
6. Bridge:
   1. Akashi Kaikyō Bridge
   2. Atchafalaya Basin Bridge
   3. Bang Na Expressway
   4. Brooklyn Bridge
   5. Chesapeake Bay Bridge
   6. Fehmarn Belt bridge
   7. George Washington Bridge
   8. Golden Gate Bridge
   9. Great Belt Bridge
   10. Hangzhou Bay Bridge
   11. Lake Pontchartrain Causeway
   12. London Bridge
   13. Oresund Bridge, Tampa Bay Bridge
   14. Tower Bridge
   15. Verrazano Narrows Bridge
7. Canal: Erie Canal, Panama Canal, Suez Canal
8. Dam: Hoover Dam
9. Dome
10. House
11. Hammer, Nail
12. Pyramid
13. Tower

Media and communication

1. Telecommunication
2. Compact disc
3. Internet
   1. E-mail
   2. Transmission Control Protocol
   3. World Wide Web
      1. Web browser
   4. HTTP
   5. HTML
4. Microphone
5. Mobile phone
6. Photography
7. Printing press
8. Printing
9. Radio
10. Telegraph
11. Telephone
12. Television
13. Typewriter
14. Video

Navigation and timekeeping

1. Clock
2. Compass
3. Global Positioning System (GPS)
4. Gyroscope
5. Pendulum
6. Radar
7. Sonar
8. Sundial

Optical

1. Camera
2. Glasses
3. Laser
4. Lens
5. Microscope
6. Prism
7. Telescope

Space

1. Atacama Large Millimeter Array
2. Great Observatories program
3. Herschel Space Observatory
4. Hubble Space Telescope
5. International Space Station
6. Moon landing
7. NASA
8. Project Apollo
9. Rocket
10. Satellite
11. Soyuz
12. Space Shuttle
13. Space station
14. European Space Agency

Transportation

1. Transport
2. Vehicle
3. Aircraft
4. Automobile (Car)
   1. Groups:
      1. Audi
      2. BMW
      3. Cadillac
      4. Chevrolet
      5. Chrysler
      6. Citroen
      7. Dodge
      8. Fiat
      9. Ford
      10. General Motors
      11. Honda
      12. Hyundai
      13. Kia
      14. Lada
      15. Lincoln
      16. Mercedes-Benz
      17. Nissan
      18. Opel
      19. Peugot
      20. Renault
      21. Rover
      22. Rolls-Royce
      23. Saab
      24. Tata
      25. Toyota
      26. Volkswagon
      27. Yugo
   2. Cars:
      1. Austin Mini
      2. BMW 3-Series
      3. Buick LeSabre
      4. Chevrolet Camaro
      5. Chevrolet Cavalier
      6. Chevrolet Corvette
      7. Chevrolet Impala
      8. Chevrolet Suburban
      9. Chrysler Town and County
      10. Citroen 2CV
      11. Fiat 500
      12. Fiat Punto
      13. Ford Crown Victoria
      14. Ford Explorer
      15. Ford F-Series
      16. Ford Model A
      17. Ford Model T
      18. Ford Mustang
      19. Ford Taurus
      20. Ford Thunderbird
      21. Honda Accord
      22. Honda Civic
      23. Land Rover
      24. Mazda 323
      25. Mitsubishi Galant
      26. Oldsmobile Cutlass
      27. Opel Astra
      28. Opel Corsa
      29. Toyota Camry
      30. Toyota Corolla
      31. Volkswagon Beetle
      32. Volkswagon Passat
5. Bicycle
6. Boat
7. Bus
8. Elevator/Lift
9. Helicopter
10. Fixed-wing aircraft
11. Motorcycle
12. Railroad
13. Rapid transit
14. Saddle
15. Ship
16. Stirrup
17. Train

Weapons

1. Weapon
2. Artillery
3. Axe
4. Bow
5. Firearm
6. Handgun
7. Knife
8. Machine gun
9. Nuclear weapon
10. Rifle
11. Spear
12. Submarine
13. Sword
14. Tank