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Henry IV, king of France

(Encyclopedia)Henry IV, 1553–1610, king of France (1589–1610) and, as Henry III, of Navarre (1572–1610), son of Antoine de Bourbon and Jeanne d'Albret; first of the Bourbon kings of France. Henry's marri...

airship

(Encyclopedia)airship, an aircraft that consists of a cigar-shaped gas bag, or envelope, filled with a lighter-than-air gas to provide lift, a propulsion system, a steering mechanism, and a gondola accommodating pa...

Huguenots

(Encyclopedia)Huguenots hyo͞oˈgənŏts [key], French Protestants, followers of John Calvin. The term is derived from the German Eidgenossen, meaning sworn companions or confederates. In the reign of King Louis ...

jet propulsion

(Encyclopedia)CE5 Types of jet engines: In the propeller-driven turbine a stream of high-velocity gases provides the power to drive the turbine and turn the propeller. In the jet-driven turbine the stream of gas...

aviation

(Encyclopedia)aviation, operation of heavier-than-air aircraft and related activities. Aviation can be conveniently divided into military aviation, air transport, and general aviation. Military aviation includes al...

Red Cross

(Encyclopedia)Red Cross, international organization concerned with the alleviation of human suffering and the promotion of public health; the world-recognized symbols of mercy and absolute neutrality are the Red Cr...

Bourbon

(Encyclopedia)Bourbon bo͞orbôNˈ [key], European royal family, originally of France; a cadet branch of the Capetian dynasty (see Capetians). One branch of the Bourbons occupies the modern Spanish throne, and othe...

fisheries

(Encyclopedia)fisheries. From earliest times and in practically all countries, fisheries have been of industrial and commercial importance. In the large N Atlantic fishing grounds off Newfoundland and Labrador, for...

battery, electric

(Encyclopedia)CE5 Lead storage cell: At the lead-dioxide electrode, electrons from the circuit combine with lead dioxide and sulfuric acid to form lead sulfate and water. At the spongy-lead electrode, lead react...

Versailles, Treaty of

(Encyclopedia)Versailles, Treaty of, any of several treaties signed in the palace of Versailles, France. For the Treaty of Versailles of 1783, which ended the American Revolution, see Paris, Treaty of, 1783. The...