balance piston
71Napier Sabre — Sabre Napier Sabre cutaway at the London Science Museum. Type Liquid cooled H 24 …
72Swashplate engine — Almen A 4 barrel engine A swashplate engine, also called a barrel engine, is one type of axial engine. Swashplate engines are a type of reciprocating engine that replaces the common crankshaft with a circular swashplate which rotates. The key… …
73Disc brake — Close up of a disc brake on a car On automobiles, disc brakes are often located with …
74Driving wheel — The driving wheels (boxed) on a 4 6 2 locomotive. The four driving wh …
75Weighing scale — Emperor Jahangir (reign 1605 1627) weighing his son Shah Jahan on a weighing scale by artist Manohar (AD 1615, Mughal dynasty, India). A weighing scale (usually just scales in UK and Australian English, weighing machine in south Asian English or… …
76Horn (instrument) — Corno redirects here. For the river, see Corno (river). French horn redirects here. For the luxury hotel and restaurant, see French Horn, Sonning Eye. Horn Horn Brass instrument Other names …
77aerospace industry — Introduction assemblage of manufacturing concerns that deal with vehicular flight within and beyond the Earth s atmosphere. (The term aerospace is derived from the words aeronautics and spaceflight.) The aerospace industry is engaged in the …
78Steam engine — A steam engine is a heat engine that performs mechanical work using steam as its working fluid. [ [http://www.britannica.com/EBchecked/topic/564472/steam engine steam engine Britannica Online Encyclopedia ] ] Steam engines have a long history,… …
79Loudspeaker — For other uses, see Loudspeaker (disambiguation). An inexpensive, low fidelity 3½ inch speaker, typically found in small radios …
80Engine tuning — is the adjustment, modification or design of internal combustion engines to yield optimal performance, either in terms of power output or economy. It has a long history, almost as long as the development of the car in general, originating with… …
