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anticyclone

(Encyclopedia)anticyclone, region of high atmospheric pressure; anticyclones are commonly referred to as “highs.” The pressure gradient, or change between the core of the anticyclone and its surroundings, combi...

safety lamp

(Encyclopedia)safety lamp, oil lamp designed for safe use in mines and other places where flammable gases such as firedamp (see damp) may be present. Its invention (c.1816) is usually attributed to Sir Humphry Davy...

Moody, Dwight Lyman

(Encyclopedia)Moody, Dwight Lyman, 1837–99, American evangelist, b. Northfield, Mass. He became successful in business in Chicago, where he settled in 1856. His activities there as a Sunday-school teacher and sup...

Ware, Henry

(Encyclopedia)Ware, Henry, 1764–1845, American clergyman, instrumental in the founding of Unitarianism in the United States, b. Sherborn, Mass., grad. Harvard, 1785. As pastor (1787–1805) of the First Church, H...

batholith

(Encyclopedia)batholith, enormous mass of intrusive igneous rock, that is, rock made of once-molten material that has solidified below the earth's surface (see rock). Batholiths usually are granitic (see granite) i...

Carina

(Encyclopedia)Carina kərēˈnə [key] [Lat.,=the keel], southern constellation, representing the keel of the ancient constellation Argo Navis, or Ship of the Argonauts. Carina contains Canopus, the second brightes...

airline industry

(Encyclopedia)airline industry, the business of transporting paying passengers and freight by air along regularly scheduled routes, typically by airplanes but also by helicopter. Ferdinand Graf von Zeppelin set up ...

communications industry

(Encyclopedia)communications industry, broadly defined, the business of conveying information. Although communication by means of symbols and gestures dates to the beginning of human history, the term generally ref...

pilotage

(Encyclopedia)pilotage: see air navigation.

Earle, Ralph

(Encyclopedia)Earle or Earl, Ralph, 1751–1801, American portrait and landscape painter, b. Worcester co., Mass. He is purported to have painted four scenes of the battle of Lexington as an eyewitness, but is best...