thrust due to wind pressure
11energy conversion — ▪ technology Introduction the transformation of energy from forms provided by nature to forms that can be used by humans. Over the centuries a wide array of devices and systems has been developed for this purpose. Some of these energy …
12Ionians (The) — The Ionians Malcolm Schofield THALES AND OTHERS The Greeks agreed that philosophy had begun with Thales. However they did not know much about his views.1 What survives is mostly a potent legend. Herodotus tells stories of his practical ingenuity …
13Sail — A sail is any type of surface intended to generate thrust by being placed in a wind mdash;in essence a vertically oriented wing. Sails are used in sailing.History of sailsThe ships built at around 10,000 BC were just crude log rafts or dug out… …
14Avalanche — This article refers to the natural event. For other uses, see Avalanche (disambiguation) An avalanche is an abrupt and rapid flow of snow, often mixed with air and water, down a mountainside. Avalanches are among the biggest dangers in the… …
15Tractive effort — (abbr. TE) is the pulling force exerted, normally by a locomotive, though the term could also be used for anything else that pulls a load. It is normally understood to be the actual force on the locomotive s drawbar or rear coupler. When a bare… …
16Mars Climate Orbiter — Artist s conception of the Mars Climate Orbiter. Operator NASA / JPL …
17George W. Bush's second term as President of the United States — began at noon on January 20, 2005 and is due to expire with the swearing in of the 44th President of the United States at noon, Washington, D.C. time, on January 20, 2009.tated goalsBush s stated goals for his second term: # Major changes to the… …
18Mikoyan-Gurevich MiG-3 — MiG 3 Soviet Air Force MiG 3s in winter camouflage. The slogan on the nearest aircraft reads Za Rod …
19china — /chuy neuh/, n. 1. a translucent ceramic material, biscuit fired at a high temperature, its glaze fired at a low temperature. 2. any porcelain ware. 3. plates, cups, saucers, etc., collectively. 4. figurines made of porcelain or ceramic material …
20China — /chuy neuh/, n. 1. People s Republic of, a country in E Asia. 1,221,591,778; 3,691,502 sq. mi. (9,560,990 sq. km). Cap.: Beijing. 2. Republic of. Also called Nationalist China. a republic consisting mainly of the island of Taiwan off the SE coast …
