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81Civil engineering and infrastructure repair in New Orleans after Hurricane Katrina — This article covers the levee system and infrastructure repairs in New Orleans, Louisiana following Hurricane Katrina. Hurricane Katrina …
82Flood control in the Netherlands — Without dikes, this part of the Netherlands would be flooded …
83Johnson Creek (Willamette River) — Geobox | River name = Johnson Creek category = Creek image size = 300 image caption = Johnson Creek near Regner Road in Gresham etymology = William Johnson, early settler country = United States country state = Oregon district type = County… …
84Islamic arts — Visual, literary, and performing arts of the populations that adopted Islam from the 7th century. Islamic visual arts are decorative, colourful, and, in religious art, nonrepresentational; the characteristic Islamic decoration is the arabesque.… …
85Oil well control — is the management of the dangerous effects caused by unexpected high pressures upon surface equipment of oil or gas drilling rigs. Technically, oil well control involves preventing Formation fluid, usually referred to as kick, from entering into… …
86Transformer — This article is about the electrical device. For the toy line franchise, see Transformers. For other uses, see Transformer (disambiguation). Pole mounted distribution transformer with center tapped secondary winding. This type of transformer is… …
87Potomac River — Coordinates: 37°59′57″N 76°14′59″W / 37.99917°N 76.24972°W / 37.99917; 76.24972 …
88Cave diving — is a type of technical diving in which specialized SCUBA equipment is used to enable the exploration of natural or artificial caves which are at least partially filled with water. It is an extension of the more common sport of caving, but is much …
89Subglacial lake — A subglacial lake is a lake under a glacier, typically an ice cap or ice sheet. There are many such lakes, with Lake Vostok in Antarctica being by far the largest at present times.The water below the ice remains liquid since geothermal heating… …
90electromagnetism — /i lek troh mag ni tiz euhm/, n. 1. the phenomena associated with electric and magnetic fields and their interactions with each other and with electric charges and currents. 2. Also, electromagnetics. the science that deals with these phenomena.… …
