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Empire style

(Encyclopedia)Empire style, manner of French interior decoration and costume which evolved from the Directoire style. Designated Empire because of its identification with the reign of Napoleon I, it was largely ins...

Helsinki

(Encyclopedia)Helsinki hĕlˈsĭngkē [key], Swed. Helsingfors, city (2020 pop. 653,835), capital of Finlan...

synchrotron radiation

(Encyclopedia)synchrotron radiation, in physics, electromagnetic radiation emitted by high-speed electrons spiraling along the lines of force of a magnetic field (see magnetism). Depending on the electron's energy ...

wind tunnel

(Encyclopedia)wind tunnel, apparatus for studying the interaction between a solid body and an airstream. A wind tunnel simulates the conditions of an aircraft in flight by causing a high-speed stream of air to flow...

adhesive

(Encyclopedia)adhesive, substance capable of sticking to surfaces of other substances and bonding them to one another. The term adhesive cement is sometimes used in place of adhesive, especially when referring to a...

rubber

(Encyclopedia)CE5 Basic molecules in rubber rubber, any solid substance that upon vulcanization becomes elastic; the term includes natural rubber (caoutchouc) and synthetic rubber. The term elastomer is sometim...

gonadotropic hormone

(Encyclopedia)gonadotropic hormone gōˌnădətrŏpˈĭk [key] or gonadotropin, any one of three glycoprotein (see protein) hormones released by either the anterior pituitary gland or the placenta (the organ in whi...

fan

(Encyclopedia)fan, device for agitating air or gases or moving them from one location to another. Mechanical fans with revolving blades are used for ventilation, in manufacturing, in winnowing grain, to remove dust...

acropolis

(Encyclopedia)acropolis əkrŏpˈəlĭs [key] [Gr.,=high point of the city], elevated, fortified section of various ancient Greek cities. The Acropolis of Athens, a hill c.260 ft (80 m) high, with a flat oval top c...

Somerset, Edward Seymour, duke of

(Encyclopedia)Somerset, Edward Seymour, duke of, 1506?–1552, protector of England. He served on various military and diplomatic missions for Henry VIII and, after the marriage of his sister Jane to the king, was ...