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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. ...

armadillo

(Encyclopedia)armadillo ärˌmədĭlˈō [key], New World armored mammal of the order Edentata, a group that also includes the sloth and the anteater, characterized by peglike teeth without roots or enamel. Armadil...

centripetal force and centrifugal force

(Encyclopedia)CE5 Centripetal and centrifugal forces: When a ball is swung in a circle at the end of a string, centripetal and centrifugal forces act as shown above. centripetal force and centrifugal force, act...

Agnelli

(Encyclopedia)Agnelli än-yĕlˈlē [key], family of Italian industrialists. Giovanni Agnelli, 1866–1945, served as a cavalry officer until 1892. One of the founders (1899) of Fiat (Fabbrica Italiana Automobili T...

baseball

(Encyclopedia)CE5 A regulation baseball field. Minimum distance to the outfield fence is 250 ft; professional baseball fields constructed since 1958 have been at least 325 ft deep along the foul lines and 400 ft...

Theseus

(Encyclopedia)Theseus thēˈsyo͞os, –sēəs [key], in Greek mythology, hero of Athens; son of either King Aegeus or Poseidon. Before Aegeus left Troezen he placed his sword and sandals beneath a huge rock and to...

Balfour, Arthur James Balfour, 1st earl of

(Encyclopedia)Balfour, Arthur James Balfour, 1st earl of bălˈfo͝or [key], 1848–1930, British statesman; nephew of the 3d marquess of Salisbury. He entered parliament as a Conservative in 1874 and served as sec...

bicycle

(Encyclopedia)bicycle, light, two-wheeled vehicle driven by pedals. The name velocipede is often given to early forms of the bicycle and to its predecessor, the dandy horse, a two-wheeled vehicle moved by the thrus...

Winchester, cities, United States

(Encyclopedia)Winchester wĭnˈchĕˌstər, wĭnˈchĭstər [key]. 1 Town (1990 pop. 11,524), Litchfield co., NW Conn., in the Litchfield Hills; settled 1732, inc. 1771. It includes Winsted (1990 pop. 8,254), an in...

ballot

(Encyclopedia)ballot, means of voting for candidates for office. The choice may be indicated on or by the ballot forms themselves—e.g., colored balls (hence the term ballot, which is derived from the Italian ball...