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81permafrost — /perr meuh frawst , frost /, n. (in arctic or subarctic regions) perennially frozen subsoil. Also called pergelisol. [1943; PERMA(NENT) + FROST] * * * Perennially frozen earth, with a temperature below 32 °F (0 °C) continuously for two years or… …
82AGRICULTURAL LAND-MANAGEMENT METHODS AND IMPLEMENTS IN ANCIENT EREẒ ISRAEL — Ereẓ Israel is a small country with a topographically fragmented territory, each geographical region having a distinctive character of its own. These regions include: the coastal plain, the lowlands, the hilly country, the inland valleys, the… …
83Éditions de Magic : l'assemblée — Cette page détaille les éditions du jeu de cartes à collectionner Magic : l assemblée. Wizards of the Coast a édité les cartes Magic sous forme d’éditions de base et d’extensions. Les éditions de base sont largement constituées de cartes… …
84Mathematics and Physical Sciences — ▪ 2003 Introduction Mathematics Mathematics in 2002 was marked by two discoveries in number theory. The first may have practical implications; the second satisfied a 150 year old curiosity. Computer scientist Manindra Agrawal of the… …
85Landslide mitigation — Landslides can be triggered by many often concomitant causes. In addition to shallow erosion or reduction of shear strength caused by seasonal rainfall, causes triggered by anthropic activities such as adding excessive weight above the slope,… …
86Geotechnical engineering — [ Boston s Big Dig presented geotechnical challenges in an urban environment.] Geotechnical engineering is the branch of civil engineering concerned with the engineering behavior of earth materials. Geotechnical engineering includes investigating …
87Williamstown, Victoria — Infobox Australian Place | type = suburb name = Williamstown city = Melbourne state = vic caption = Nelson Place, in the restaurant precinct. lga = City of Hobsons Bay area = 5.5 postcode = 3016 pop = 12,733 (2006)Census 2006 AUS | id = SSC21735… …
88Pemadumcook Chain of Lakes — Infobox lake lake name = Pemadumcook Chain of Lakes image lake = South Twin .jpg caption lake = Evening light, South Twin Lake image bathymetry = caption bathymetry= location = Penobscot County, Maine Piscataquis County, Maine coords =… …
89Manhattan Project — This article is about the atomic bomb project. For other uses, see Manhattan Project (disambiguation). Manhattan District The Manhattan Project created the first nuclear bombs. The Trinity test …
90List of pipeline accidents — The following is a list of pipeline accidents: This is an incomplete list, which may never be able to satisfy particular standards for completeness. You can help by expanding it with reliably sourced entries. Contents 1 Bel …
