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room-and-pillar method

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  • Room-and-pillar mining —   The most common method of underground mining in which the mine roof is supported mainly by coal pillars left at regular intervals. Rooms are places where the coal is mined; pillars are areas of coal left between the rooms. Room and pillar… …   Energy terms

  • Combe Down and Bathampton Down Mines — Site of Special Scientific Interest …   Wikipedia

  • Hudson Bay Mining and Smelting Co. — Hudson Bay Mining Smelting Co., Limited (HBMS) has been exploring and mining inManitoba for over 70 years. Much of their history has centered around Flin Flon, Manitoba. The Flin Flon orebody was discovered by David Collins, a local trapper, and… …   Wikipedia

  • Cumberland Railway and Coal Company — The Cumberland Railway and Coal Company is a defunct Canadian industrial company with interests in coal mines in Springhill, Nova Scotia, and a railway that operated from Springhill Junction to Parrsboro. Contents 1 Spring Hill and Parrsborough… …   Wikipedia

  • Architecture and Civil Engineering — ▪ 2009 Introduction Architecture       For Notable Civil Engineering Projects in work or completed in 2008, see Table (Notable Civil Engineering Projects (in work or completed, 2008)).        Beijing was the centre of the world of architecture… …   Universalium

  • coal 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… …   Universalium

  • Crandall Canyon Mine — Coordinates: 39°27′36″N 111°10′04″W / 39.460000°N 111.167639°W / 39.460000; 111.167639 The Crandall Canyon Mine, formerly Genwal …   Wikipedia

  • RELIGIOUS LIFE AND COMMUNITIES — Jews UNDER OTTOMAN RULE The Jews of the pre Zionist old yishuv, both sephardim (from the Orient) and ashkenazim (of European origin), dedicated their lives to the fulfillment of religious precepts: the study of the torah and the meticulous… …   Encyclopedia of Judaism

  • SubTropolis — is a 55,000,000 square foot (5,060,000 m³), convert|1100|acre|km2|sing=on manmade cave in the bluffs above the Missouri River in Kansas City, Missouri, United States that is claimed to be the world s largest underground storage facility.Developed …   Wikipedia

  • Mill, John Stuart: Logic and metaphysics — J.S.Mill Logic and metaphysics John Skorupski ENLIGHTENMENT AND ROMANTICISM IN MILL’S PHILOSOPHY Mill’s importance as one of the major figures of nineteenth century politics and culture, and the current interest in him as a moral and political… …   History of philosophy

  • Oil shale industry — Stuart oil shale pilot plant (now dismantled) Oil shale industry is an industry of mining and processing of oil shale a fine grained sedimentary rock, containing significant amounts of kerogen (a solid mixture of organic chemical compounds), from …   Wikipedia

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