piston core
121Thiele/Small — commonly refers to a set of electromechanical parameters that define the specified low frequency performance of a loudspeaker driver. These parameters are published in specification sheets by driver manufacturers so that designers have a guide in …
122Axial compressor — Axial compressors are rotating, aerofoil based compressors in which the working fluid principally flows parallel to the axis of rotation. This is in contrast with centrifugal, axi centrifugal and mixed flow compressors where the air may enter… …
123What the Ancients Did for Us — Infobox Television show name = What the Ancients Did for Us caption = aka = genre = Documentary creator = writer = director = creat director = developer = presenter = nowrap beginAdam Hart Davis·wrap Hermione Cockburn·wrap Jamie Darling·wrap… …
124Crower six stroke — The Crower six stroke engine is a concept under development by Bruce Crower. Two extra strokes are added to the customary internal combustion engine four stroke Otto cycle, which makes a six stroke engine. A third down stroke is a steam stroke… …
125Walker Air Force Base — Infobox Airport name = Walker Air Force Base image width = 300 type = Military: Air Force Base owner = U.S. Air Force location = Roswell, New Mexico built = used = 1941 1967 commander = occupants = elevation f = 3,671 elevation m = 1,119… …
126Subaru Legacy — Infobox Automobile name = Subaru Legacy aka = Subaru Liberty Subaru B4 Subaru Legacy B4 Subaru Legacy Touring Wagon manufacturer = Subaru predecessor = none parent company = Fuji Heavy Industries production = 1989 present class = Mid size (1989… …
127Glowplug — For the similar device used in model aircraft engines, see Glow plug (model engine).A glowplug (alternately spelled as glow plug or glow plug) is a heating device used to aid starting diesel engines. Purpose Diesel engines, unlike petrol engines …
128Baptist well drilling — A very simple manual method to drill water wells, meant to be applied by very poor villagers in developing countries, who quickly learn how to drill their wells themselves. The Baptist drilling rig can be built in any ordinary arc welding… …
