pressure core barrel
71Chevrolet Bel Air — See also 57 Chevy Chevrolet Bel Air 1957 Chevrolet Bel Air Convertible Manufacturer Chevrolet Division of General Motors Production …
72Pumpjack — Nodding donkey redirects here. For the British Rail train, see Pacer (train). Pump jack redirects here. For the Scaffold, see Pump jack. A diagram of a pumpjack. A pumpjack (nodding donkey, pumping unit, horsehead pump, beam pump, sucker rod pump …
73Terminal ballistics — Terminal ballistics, a sub field of ballistics, is the study of the behavior of a projectile when it hits its target. It is often referred to as stopping power when dealing with human or other living targets. Terminal ballistics is as relevant… …
74Optical fiber — A bundle of optical fibers A TOSLINK fiber optic audio c …
75SIG SG 550 — SG 550 The SG 550 service rifle Type Assault rifle Place of origin …
76.358-378 RG — Infobox Firearm Cartridge name= .358 378 RG caption= .358 378 RG origin= Sunnyvale, California type= Wildcat cartridge service= used by= wars= designer= Joseph D Alessandro design date= March 2002 manufacturer= production date= number= variants=… …
77baseball — /bays bawl /, n. 1. a game of ball between two nine player teams played usually for nine innings on a field that has as a focal point a diamond shaped infield with a home plate and three other bases, 90 ft. (27 m) apart, forming a circuit that… …
78building construction — Techniques and industry involved in the assembly and erection of structures. Early humans built primarily for shelter, using simple methods. Building materials came from the land, and fabrication was dictated by the limits of the materials and… …
79Oil sands — The Athabasca oil sands in Alberta, Canada, are a very large source of bitumen, which can be upgraded to synthetic crude oil. Bituminous sands, colloquially known as oil sands or tar sands, are a type of unconventional petroleum deposit. The… …
80British anti-invasion preparations of World War II — entailed a large scale division of military and civilian mobilization in response to the threat of invasion by German armed forces in 1940 and 1941. The army needed to recover from the defeat of the British Expeditionary Force in France, and 1.5… …
