reversion of gas
11steel — steellike, adj. /steel/, n. 1. any of various modified forms of iron, artificially produced, having a carbon content less than that of pig iron and more than that of wrought iron, and having qualities of hardness, elasticity, and strength varying …
12History of the petroleum industry in Canada (frontier exploration and development) — discoveries took place near population centres or along lines of penetration into the frontier. The first oil play, for example, was in southern Ontario. The first western natural gas discovery occurred on a Canadian Pacific Railway right of way …
13technology, history of — Introduction the development over time of systematic techniques for making and doing things. The term technology, a combination of the Greek technē, “art, craft,” with logos, “word, speech,” meant in Greece a discourse on the arts, both… …
14Ozone — For other uses, see Ozone (disambiguation). Ozone …
15Chronology of world oil market events (1970-2005) — Basic OverviewThe 1970s See: 1970 1979 world oil market chronology 1970*January 1: U.S. Federal oil depletion allowance reduced from 27.5 to 22.0 percent. *May 3: TAP line from Saudi Arabia to the Mediterranean interrupted in Syria, creating all… …
16china — /chuy neuh/, n. 1. a translucent ceramic material, biscuit fired at a high temperature, its glaze fired at a low temperature. 2. any porcelain ware. 3. plates, cups, saucers, etc., collectively. 4. figurines made of porcelain or ceramic material …
17China — /chuy neuh/, n. 1. People s Republic of, a country in E Asia. 1,221,591,778; 3,691,502 sq. mi. (9,560,990 sq. km). Cap.: Beijing. 2. Republic of. Also called Nationalist China. a republic consisting mainly of the island of Taiwan off the SE coast …
18naval ship — Introduction the chief instrument by which a nation extends its military power onto the seas. Warships protect the movement over water of military forces to coastal areas where they may be landed and used against enemy forces; warships… …
19Chronology of world oil market events (1970–2005) — Contents 1 Basic overview 2 The 1970s 2.1 1970 2.2 1971 …
20Panama — Panamanian /pan euh may nee euhn, mah /, adj., n. Panamic /pa nam ik/, adj. /pan euh mah , maw /, n. 1. a republic in S Central America. 2,693,417; 28,575 sq. mi. (74,010 sq. km). 2. Also called Panama City. a city in and the capital of Panama,… …
