fault coal
101tunnels 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 …
102Smart grid — Public infrastructure …
103Protected areas of China — This article lists the nationally protected areas of China. There are many forms of protected areas in China. Based on their relative importance, each type of protected area can be further graded into two to three levels (national, provincial and …
104Kutch Gurjar Kashtriya — Kutch Gurjar Kshatriya a.k.a. Mistris of Kutch Total population 51,000[1][2] Regions with significant populations • …
105Germany — /jerr meuh nee/, n. a republic in central Europe: after World War II divided into four zones, British, French, U.S., and Soviet, and in 1949 into East Germany and West Germany; East and West Germany were reunited in 1990. 84,068,216; 137,852 sq.… …
106technology, 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… …
107Irish Sea — Freight and passenger …
108Harz — Mountains redirects here. For the district of the same name, see Harz (district). Harz Range Country Germany …
109Labor spies — are persons recruited or employed for the purpose of gathering intelligence, committing sabotage, sowing dissent, or engaging in other similar activities, typically within the context of an employer/labor organization relationship.Some of the… …
110Pike River mine — The Pike River mine, operated by Pike River Coal Ltd, is a new coal mine located 46 km east of Greymouth in the West Coast Region of New Zealand. It is to start production in early 2008, and expected to produce around 1 megatonne of coal per year …
