Wikipedia:Featured pictures/Engineering and technology

Epicyclic gear ratios at Epicyclic gearing, by Wapcaplet

Start of the four stroke cycle at Four stroke cycle, by Wapcaplet

Painter's algorithm, by Frederik

Pin tumbler with key at Pin tumbler lock, by Wapcaplet

Pin tumbler with key (unlocked) at Pin tumbler lock, by Wapcaplet

Enigma rotor at Enigma machine, by Wapcaplet

Gun-type fission weapon, by Fastfission

Terragen scene at Terragen, by Fir0002

Teller-Ulam design, by Fastfission

Computer mouse, by Jeremy Kemp

Falkirk Wheel, by Sean McClean

Plasma lamp, by Luc Viatour

80486DX2 at Central processing unit, by Matt Britt and Matt Gibbs

Single-phase transformer at Transformer, by BillC

Personal computer, by Gustavb

Cathode ray tube, by da:User:Peo and Grm wnr

Coal Power Station at Fossil fuel power plant, by BillC

Vernier caliper at Caliper, by Alvesgaspar, modified by ed g2s

Map of the Internet, by Matt Britt

Stereo and mono jack plugs, by Søren Peo Pedersen (re-rendered by Ed g2s)

Aerogel, by Jet Propulsion Laboratory

Gas metal arc welding at Arc welding, by William M. Plate Jr., United States Air Force

Movable type, by Willi Heidelbach