ordinary spacing type
51Stripboard — (usually known by the trademark name Veroboard of the British Vero Electronics company, who invented it) is a widely used type of electronics prototyping board characterised by a 0.1 inch (2.54 mm) regular grid of holes, with wide strips running… …
52Telescopic sight — Scope redirects here. For other uses, see Scope (disambiguation). View through a 4x rifle scope. A telescopic sight, commonly called a scope, is a sighting device that is based on an optical refracting telescope. They are equipped with some form… …
53NEMA connector — Twist lock connector redirects here. For the device used in intermodal shipping, see Twistlock. Ungrounded and grounded power plugs …
54List of Dune terminology — This is a list of terminology used in the fictional Dune universe created by Frank Herbert, the primary source being Terminology of the Imperium, the glossary contained in the novel Dune (1965). Dune word construction could be classified into… …
55printmaking — /print may king/, n. the art or technique of making prints, esp. as practiced in engraving, etching, drypoint, woodcut or serigraphy. [1925 30; PRINT + MAKING] * * * Art form consisting of the production of images, usually on paper but… …
56eye, human — ▪ anatomy Introduction specialized sense organ capable of receiving visual images, which are then carried to the brain. Anatomy of the visual apparatus Structures auxiliary to the eye The orbit The eye is protected from mechanical injury… …
57Mountain bike trials — Not to be confused with individual time trial races, which are an element of road bicycle racing. Four riders practicing urban bike trial. Mountain bike trials, also known as observed trials, is a discipline of mountain biking in which the rider… …
58Roman infantry tactics — refers to the theoretical and historical deployment, formation and maneuvers of the Roman infantry from the start of the Roman Republic to the fall of the Western Roman Empire. The article first presents a short overview of Roman training. Roman… …
59Wikipedia:Featured article candidates — Here, we determine which articles are to be featured articles (FAs). FAs exemplify Wikipedia s very best work and satisfy the FA criteria. All editors are welcome to review nominations; please see the review FAQ. Before nominating an article,… …
60Hydrogen bond — A hydrogen bond results from a dipole dipole force between an electronegative atom and a hydrogen atom bonded to nitrogen, oxygen or fluorine (thus the name hydrogen bond , which must not be confused with a covalent bond to hydrogen). The energy… …
