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air-cushion vehicle

(Encyclopedia)CE5 Air-cushion vehicle: In vehicles modified with a trunk or skirt (A), the rate of leakage is reduced and less power is needed to maintain the cushion. Vehicles designed to travel over deep water...

harvester

(Encyclopedia)harvester, farm machine that mechanically harvests a crop. Small-grain harvesting has been mechanized to a certain extent since early times. In the modern period the first harvester to gain general ac...

Goodyear, Charles

(Encyclopedia)Goodyear, Charles, 1800–1860, American inventor, b. New Haven, Conn., originator of vulcanized rubber. He failed in his earlier business ventures and was in jail for debt when he began his experimen...

DeBakey, Michael Ellis

(Encyclopedia)DeBakey, Michael Ellis dəbāˈkē [key], 1908–2008, American surgeon, b. Lake Charles, La. While still at Tulane medical school (M.D., 1932), DeBakey developed the roller pump, which later became a...

Choate, Joseph Hodges

(Encyclopedia)Choate, Joseph Hodges chōt [key], 1832–1917, American lawyer and diplomat, b. Salem, Mass.; nephew of Rufus Choate. After being admitted (1855) to the bar, he moved to New York City. His legal care...

productivity

(Encyclopedia)productivity, in economics, the output of any aspect of production per unit of input. It is a measure of the output of a worker, machine, or an entire national economy in the creation of goods and ser...

tinnitus

(Encyclopedia)tinnitus, the hearing of sounds in the absence of any external sound, also known as ringing in the ears. The sounds may be perceived as hissing, whistling, buzzing, swooshing, roaring, or clicking in ...

Uzhhorod

(Encyclopedia)Uzhhorod o͝ozhˈhôrôtˌ [key], Czech Užhorod, Rus. Uzhgorod, Hung. Ungvár, city (1989 pop. 117,000), capital of Transcarpathian Region, SW Ukraine, in the SW Carpathian foothills and on the Uzh R...

stonework

(Encyclopedia)stonework, term applied to various types of work—that of the lapidary who shapes, cuts, and polishes gemstones or engraves them for seals and ornaments; of the jeweler or artisan who mounts or encru...

Suzhou

(Encyclopedia)Suzhou, Soochow wo͞oˈshēĕnˈ [key], city (1994 pop. 710,900), SE Jiangsu prov., E central China, on the Grand Canal near Tai Lake. Suzhou, famous for its silks since the Sung dynasty, is still a ...