head rise coefficient
81Economic history of the Russian Federation — Contents 1 Historical background 2 Transition to Market Economy 2.1 Monetary and fiscal policies 2.2 Inflation …
82Hydroelectricity — The Gordon Dam in Tasmania is a large hydro facility, with an installed capacity of 430 MW …
83Sweden — This article is about the country. For other uses, see Sweden (disambiguation). Kingdom of Sweden Konungariket Sverige …
84Underwater acoustics — The field of underwater acoustics is closely related to a number of other fields of acoustic study, including sonar, transduction, acoustic signal processing, acoustical oceanography, bioacoustics, and physical acoustics.HistoryUnderwater sound… …
85Airship — For other uses, see Airship (disambiguation). Dirigible redirects here. For the 1931 film, see Dirigible (film). Not to be confused with Balloon (aircraft) or Blimp. Airship …
86Galloping Gertie — This article is about the first Tacoma Narrows Bridge, which collapsed in 1940. For the article on the current bridge, see Tacoma Narrows Bridge. Infobox Bridge bridge name = Tacoma Narrows Bridge (Galloping Gertie) caption = The first Tacoma… …
87Marine snow — Underway recovery of a sediment trap used to collect marine snow and estimate export production In the deep ocean, marine snow is a continuous shower of mostly organic detritus falling from the upper layers of the water column. It is a… …
88Economic history of Portugal — This article covers the economic history of Portugal.Portugal was once one of the largest and most powerful political and economic powers in the world. Since the 16th century to the end of the Estado Novo regime in 1974, Portugal s dominions were …
89List of The Shield episodes — This is an episode list for the FX crime drama television series The Shield created by Shawn Ryan and starring Michael Chiklis. The series premiered on March 12, 2002 and ended November 25, 2008, totaling seven seasons and 88 episodes. Contents 1 …
90lake — lake1 /layk/, n. 1. a body of fresh or salt water of considerable size, surrounded by land. 2. any similar body or pool of other liquid, as oil. 3. (go) jump in the lake, (used as an exclamation of dismissal or impatience.) [bef. 1000; ME lak(e) …
