bottom-water drive
31Maelstrom — For other uses, see Maelstrom (disambiguation). Saltstraumen maelstrom A maelstrom /ˈmeɪlstrɒm/ is a very powerful whirlpool; a large, swirling body of water. A free vortex, it has considerable downdraft. The power of tidal whirlpools tends to be …
32Upwelling — If the wind in blows parallel to the coast in the southern hemisphere (such as along the coast of Peru, where the wind blows North), then Ekman transport produces a net movement of surface water 90 degrees to the left. This can result in coastal… …
33El Niño-Southern Oscillation — El Niño redirects here. For other uses, see El Niño (disambiguation). ENSO redirects here. For other uses, see Enso (disambiguation). The 1997 El Niño observed by TOPEX/Poseidon. The white areas off the tropical coasts of South and North America… …
34Horace-Bénédict de Saussure — NOTOC Horace Bénédict de Saussure (February 17, 1740 January 22, 1799) was a Swiss aristocrat, physicist and Alpine traveller, often considered the founder of alpinism. [http://en.wikipedia.org/wiki/Horace Bénédict de Saussure] Life and work He… …
35Ship transport — Water transport redirects here. For the transportation of water, see Water transportation. Harbour cranes unload cargo from a container ship at the Jawaharlal Nehru Port in Navi Mumbai, India …
36Elevator — For other uses, see Elevator (disambiguation). A set of lifts in the lower level of a London Underground station. The arrows indicate each elevator s position and direction of travel …
37Glossary of nautical terms — This is a glossary of nautical terms; some remain current, many date from the 17th 19th century. See also Wiktionary s nautical terms, Category:Nautical terms, and Nautical metaphors in English. Contents: A B C D E F G H I J K L M N O P Q R …
38List of Chinese inventions — A bronze Chinese crossbow mechanism with a buttplate (the wooden components have …
39United States — a republic in the N Western Hemisphere comprising 48 conterminous states, the District of Columbia, and Alaska in North America, and Hawaii in the N Pacific. 267,954,767; conterminous United States, 3,022,387 sq. mi. (7,827,982 sq. km); with… …
40ECONOMIC AFFAIRS — THE PRE MANDATE (LATE OTTOMAN) PERIOD Geography and Borders In September 1923 a new political entity was formally recognized by the international community. Palestine, or Ereẓ Israel as Jews have continued to refer to it for 2,000 years,… …
