diameter-length ratio
121Optical aberration — v · d · e Optical aberration …
122Gramophone record — A 12 inch (30 cm) 33⅓ rpm record (left), a 7 inch 45 rpm record (right), and a CD (above) A gramophone record, commonly known as a phonograph record (in American English), vinyl record (in reference to vinyl, the material most commonly used after …
123Bicycle wheel — For the Marcel Duchamp installation, see Bicycle Wheel. The front wheel from a racing bicycle made using a Mavic rim …
124Rolls-Royce Trent — are a family of high bypass turbofan engines manufactured by Rolls Royce. All are developments of the RB211 with thrust ratings of between 53,000 and 95,000 lbf (236 to 423 kN). Versions of the Trent are in service on the Airbus A330, A340, A380… …
125Metrication in the United States — U.S. shampoo label, with round metric quantity taking secondary status next to non integer U.S …
126Audi S4 — Infobox Automobile name = Audi S4 manufacturer = Audi AG parent company = Volkswagen Group (Volkswagen AG) aka = S4, S4 quattro production = 1991 present assembly = Ingolstadt, Germany class = Compact executive car, Sports car layout = Front… …
127Wind turbine design — An example of a wind turbine, this 3 bladed turbine is the classic design of modern wind turbines Wind turbines History Design …
128hand tool — any tool or implement designed for manual operation. * * * Introduction any of the implements used by craftsmen in manual operations, such as chopping, chiseling, sawing, filing, or forging. Complementary tools, often needed as auxiliaries to… …
