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Ma, Yo-Yo

(Encyclopedia)Ma, Yo-Yo mä [key], 1955–, American cellist, b. Paris. The son of musicologist Hiao-Tsun Ma, who left China in the 1930s, he was a musical prodigy, giving a public recital in Paris at the age of si...

Riggs, Bobby

(Encyclopedia)Riggs, Bobby (Robert Larimore Riggs), 1918–95, U.S. tennis player, b. Los Angeles. Playing tennis from the age of 11, Riggs won several tournaments in the 1930s and helped the U.S. team win the Davi...

confirmation

(Encyclopedia)confirmation, Christian rite in which the initiation into the church that takes place by baptism is confirmed. In the Roman Catholic and Orthodox Eastern churches, it is a sacrament by which a Christi...

acting

(Encyclopedia)acting, the representation of a usually fictional character on stage or in films. At its highest levels of accomplishment acting involves the employment of technique and/or an imaginative ...

Clausius, Rudolf Julius Emanuel

(Encyclopedia)Clausius, Rudolf Julius Emanuel ro͞oˈdôlf yo͞oˈlyo͝os āmäˈno͞oĕl klouˈzēo͝os [key], 1822–88, German mathematical physicist. A pioneer in the science of thermodynamics, he introduced th...

White Horse, Vale of the

(Encyclopedia)White Horse, Vale of the, district (1991 pop. 109,200), Oxfordshire, S central England. The vale is the valley of the Ock River. Abingdon is the administrative seat. Surgical instruments and automobil...

Bonington, Richard Parkes

(Encyclopedia)Bonington, Richard Parkes bŏnˈĭngtən [key], 1802–28, English painter. Moving to Calais at the age of 15, his first art study was with Louis Francia, who taught him watercolor and lithography. Bo...

social security

(Encyclopedia)social security, government program designed to provide for the basic economic security and welfare of individuals and their dependents. The programs classified under the term social security differ f...

Davy, Sir Humphry

(Encyclopedia)Davy, Sir Humphry, 1778–1829, English chemist and physicist. The son of a woodcarver, he received his early education at Truro and was apprenticed (1795) to a surgeon-apothecary at Penzance. While d...

inductor

(Encyclopedia)inductor, electric device consisting of one or more turns of wire and typically having two terminals. An inductor is usually connected into a circuit in order to raise the inductance to a desired valu...