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51coal mining — Coal was very important in the economic development of Britain. It was used as fuel in the factories built during the Industrial Revolution and continued to be important until the 1980s. The main coalfields are in north east England, the north… …
52river — river1 riverless, adj. riverlike, adj. /riv euhr/, n. 1. a natural stream of water of fairly large size flowing in a definite course or channel or series of diverging and converging channels. 2. a similar stream of something other than water: a… …
53Common Lisp — Paradigm(s) Multi paradigm: procedural, functional, object oriented, meta, reflective, generic Appeared in 1984, 1994 for ANSI Common Lisp Developer ANSI X3J13 committee Typing discipline …
54cardiovascular disease — Introduction any of the diseases, whether congenital or acquired, of the heart and blood vessels (blood vessel). Among the most important are atherosclerosis, rheumatic heart disease, and vascular inflammation. Cardiovascular diseases are a …
55tunnels and underground excavations — ▪ engineering Introduction Great tunnels of the world Great tunnels of the worldhorizontal underground passageway produced by excavation or occasionally by nature s action in dissolving a soluble rock, such as limestone. A vertical opening …
56Abkürzungen/Luftfahrt/S–Z — Dies ist der fünfte Teil der Liste Abkürzungen/Luftfahrt. Liste der Abkürzungen Teil 1 A A Teil 2 B–D B; C; D Teil 3 E–K E; F; G; H; I; J; …
57List of house types — Contents 1 Detached single unit housing 2 Semi detached dwellings 3 Attached Multi unit housing …
58Papercrete — is a recently developed construction material which consists of re pulped paper fiber with Portland cement or clay and/or other soil added. First patented in 1928, it has been revived since the 1980s. Although perceived as an environmentally… …
596.5 mm Grendel — Infobox Firearm Cartridge name= 6.5 Grendel caption=6.5 mm Grendel showing variety of bullets convert|144|gr|abbr=on to convert|90|gr|abbr=on origin=flagcountry|United States type= Rifle designer= Bill Alexander design date= 2003… …
60Zilog Z80 — One of the first Z80 microprocessors manufactured; the date stamp is from June 1976. Produced 1976 Common manufacturer(s) Zilog …
