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equilibrium

(Encyclopedia)CE5 Equilibrium equilibrium, state of balance. When a body or a system is in equilibrium, there is no net tendency to change. In mechanics, equilibrium has to do with the forces acting on a body. ...

Norfolk, cities, United States

(Encyclopedia)Norfolk [1,] [2] nôrˈfək; [2] nôrˈfôkˌ [key]. 1 City (1990 pop. 21,476), Madison co., NE Nebr., on the Elkhorn River; inc. 1881. A trade and railroad center in a fertile farming region, it has ...

Louisville

(Encyclopedia)Louisville lo͞oˈēvĭl [key], city (1990 pop. 269,063), seat of Jefferson co., NW Ky., at the Falls of the Ohio; inc. 1780. It is the largest city in Kentucky, a port of entry, and an important indu...

Derby, city, United States

(Encyclopedia)Derby dûrˈbē [key]. <1> city (2020 pop. 12,325), New Haven co., SW Conn., at the con...

Davidson, George

(Encyclopedia)Davidson, George, 1825–1911, American geographer and astronomer, b. England. From 1845 to 1895 he was on the staff of the U.S. Coast and Geodetic Survey. He charted (1850–60) the U.S. Pacific coas...

cylinder

(Encyclopedia)CE5 Cylinder cylinder, in mathematics, surface generated by a line moving parallel to a given fixed line and continually intersecting a given fixed curve called the directrix; each line of the fam...

Chuuk

(Encyclopedia)Chuuk tro͝ok, trŭk [key], state (1990 est. pop. 48,853), c.39 sq mi (100 sq km), Federated States of Micronesia, W Pacific, in the E Caroline Islands. One of four states comprising the Federated Sta...

Ajmer

(Encyclopedia)Ajmer ăjmērˈ, əj– [key], former state, NW India. Now part of Rajasthan state, it formerly consisted of two detached areas surrounded by Rajasthan and was identical w...

Entoprocta

(Encyclopedia)CE5 A. Internal anatomy of a single animal in a Pedicellina colony B. Part of a colony of Pedicellina, representative of the phylum Entoprocta Entoprocta ĕnˌtəprŏkˈtə [key], animal phylum co...

Izmayil

(Encyclopedia)Izmayil ēzˌmäēlˈ [key], city (1989 pop. 93,000), extreme S Ukraine, on an arm of the Danube delta and near the Romanian border. It is a rail junction, river port, commercial center, and the naval...