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1Friction stir welding — (FSW) is a solid state joining process (meaning the metal is not melted during the process) and is used for applications where the original metal characteristics must remain unchanged as far as possible. This process is primarily used on aluminum …
2Helicopter noise reduction — is a topic of research into designing helicopters which can be operated more quietly, reducing the public relations problems with night flying or expanding an airport. In addition, it is useful for military applications in which stealth is… …
3Cuspate foreland — A Cuspate foreland, solidified by vegetation Cuspate forelands, also known as cuspate barriers or Nesses in Britain, are geographical features found on coastlines and lakeshores that are created primarily by long shore drift.[1] Formed by… …
4Contact angle — Cloth, treated to be hydrophobic, shows a high contact angle. The contact angle is the angle at which a liquid/vapor interface meets a solid surface. The contact angle is specific for any given system and is determined by the interactions across …
5World War I — the war fought mainly in Europe and the Middle East, between the Central Powers and the Allies, beginning on July 28, 1914, and ending on November 11, 1918, with the collapse of the Central Powers. Abbr.: WWI Also called Great War, War of the… …
6Battle of Passchendaele — For other uses, see Passchendaele (disambiguation). Battle of Passchendaele Third Battle of Ypres Part of the Western Front of the First World War …
7Operation Market Garden — Hell s Highway redirects here. For the 1932 film, see Hell s Highway (1932 film). Operation Market Garden Part of the Allied advance from Paris to the Rhine …
8Norwegian Campaign — Part of the Second World War German forces advancing near Bagn in Va …
9Glossary of American football — The following terms are used in American football and Canadian football, but see also the glossary of Canadian football. Contents: 0–9 A B C D E F G H I J K L M N O P Q R S T U V …
10Texas–Indian Wars — The Texas Indian Wars were a series of conflicts between settlers in Texas and Plains Indians. These conflicts began when the first settlers moved into Spanish Texas, and continued through Texas s time as part of Mexico, as its own nation,… …
