# cylinder

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**Cylinder (firearms)**— Close up of the cylinder on a Webley Mk VI service revolver In firearms terminology, the Cylinder refers to the cylindrical, rotating part of a revolver containing multiple cartridge chambers. The cylinder revolves around a central axis in the… …62

**Cylinder head**— A 302/5.0L Ford cylinder head In an internal combustion engine, the cylinder head (often informally abbreviated to just head) sits above the cylinders on top of the cylinder block. It closes in the top of the cylinder, forming the combustion… …63

**Cylinder (engine)**— Illustration of an engine cylinder with a cross section view of the piston, connecting rod, valves and spark plug. A cylinder is the central working part of a reciprocating engine or pump, the space in which a piston travels. Multiple cylinders… …64

**Cylinder block**— A modern passenger car engine block, integrating the crankcase and all cylinders. The cylinder head bolts to the deck surface at top. Many ribs and bosses can be seen on the side of the casting. This block is for a straight six engine …65

**Cylinder set measure**— In mathematics, cylinder set measure (or promeasure, or premeasure, or quasi measure, or CSM) is a kind of prototype for a measure on an infinite dimensional vector space. An example is the Gaussian cylinder set measure on Hilbert space. Cylinder …66

**Cylinder set**— In mathematics, a cylinder set is the natural open set of a product topology. Cylinder sets are particularly useful in providing the base of the natural topology of the product of a countable number of copies of a set. If V is a finite set, then… …67

**Cylinder of Nabonidus**— The Nabonidus Cylinder. The Nabonidus Cylinder from Sippar is a long text in which king Nabonidus of Babylonia (556 539 BC) describes how he repaired three temples: the sanctuary of the moon god Sin in Harran, the sanctuary of the warrior goddess …68

**Cylinder (locomotive)**— The motion on the left hand side of 60163 Tornado. The black casting to the left houses the cylinder, in which slides the piston; the piston rod is immediately above the wheel. The cylinders of a steam locomotive are the components that convert… …69

**Cylinder lock**— Europrofile Cylinder set with 2 double cylinders and one single cylinder (left) and also the screw to secure the cylinder A cylinder lock is a lock constructed with a cylinder that a locksmith can easily unscrew to facilitate rekeying.[1] The… …70

**Cylinder chess**— Cylindrical chessboard …