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Possible definitions for winnel


fennel
Perennial or biennial aromatic herb (Foeniculum vulgare) of the parsley family, native to S Europe and Asia Minor and cultivated in the U.S., Britain, and temperate Eurasia. The blanched shoots are eaten as a vegetable. The greenish-brown to yellowish-brown oblong oval seeds smell and taste similar to anise. The seeds and extracted oil are used for scenting soaps and perfumes and for flavoring candies, liqueurs, medicines, and foods, particularly pastries, sweet pickles, and fish.


tunnel
Horizontal or nearly horizontal underground or underwater passageway. Tunnels are used for mining, as passageways for trains and motor vehicles, for diverting rivers around damsites, for housing underground installations such as power plants, and for conducting water. Ancient civilizations used tunnels to carry water for irrigation and drinking, and in the 22nd cent. BC the Babylonians built a tunnel for pedestrian traffic under the Euphrates River. The Romans built aqueduct tunnels through mountains by heating the rock face with fire and rapidly cooling it with water, causing the rock to crack. The introduction of gunpowder blasting in the 17th cent. marked a great advance in solid-rock excavation. For softer soils, excavation is accomplished using devices such as the tunneling mole, with its rotating wheel that continuously excavates material and loads it onto a conveyor belt. Railroad transportation in the 19th-20th cent. led to a tremendous expansion in the number and length of tunnels. Brick and stone were used for support in early tunnels, but in modern tunneling steel is generally used until a concrete lining can be installed. A common method of lining involves spraying shotcrete onto the tunnel crown immediately after excavation.


Wankel
German engineer and inventor. In 1954 he completed the design of his distinctive engine, with an orbiting rotor in the shape of a curved equilateral triangle, which does the work done by the moving pistons in other internal-combustion engines. Its advantages include light weight, few moving parts, compactness, low initial cost, fewer repairs, and relatively smooth performance. The first unit was tested in 1957. The Japanese automobile company Mazda produced and developed the engine, introducing it to the U.S. market in 1971.


Wiener
U.S. mathematician. Born in Columbia, Mo., he earned a PhD from Harvard at 18. He joined the faculty of MIT in 1919. His work on generalized harmonic analysis and Tauberian theorems (which deduce the convergence of an infinite series) won the Amer. Mathematical Society's Bô cher Prize in 1933. The origin of cybernetics as an independent science is generally dated from the 1948 publication of his Cybernetics. He made contributions to such areas as stochastic processes, quantum theory, and, during World War II, gunfire control. Crater Wiener on the Moon is named for him.


Wiesel
Romanian-U.S. ...

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