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radioactivity

(Encyclopedia)CE5 Effects of a magnetic field on the products of radioactivity CE5 Disintegration series: Radioactive decay of radium-226 into lead-206 radioactivity, spontaneous disintegration or decay of t...

Serbia

(Encyclopedia)CE5 Serbia sŭrˈbēä [key], officially Republic of Serbia, republic (2015 est. pop. 8,851,000), 34,116 sq mi (88,361 sq km), W central Balkan Peninsula; formerly the chief constituent republic of...

Monaco

(Encyclopedia)CE5 Monaco mŏnˈəkō, mōnäˈkō, Fr. mônäkōˈ [key], officially Principality of Monaco, independent principality (2015 est. pop. 38,000), c.370 acres (150 hectares), on the Mediterranean Sea...

Slavs

(Encyclopedia)Slavs slävz, slăvz [key], the largest ethnic and linguistic group of peoples in Europe belonging to the Indo-European linguistic family. It is estimated that the Slavs number over 300 million in the...

Vienna, city and province, Austria

(Encyclopedia)Vienna vēĕnˈə [key], Ger. Wien, city and province (1991 pop. 1,539,848), 160 sq mi (414 sq km), capital and largest city of Austria and administrative seat of Lower Austria, NE Austria, on the Dan...

Voltaire, François Marie Arouet de

(Encyclopedia)Voltaire, François Marie Arouet de fräNswäˈ märēˈ ärwāˈ də vôltĕrˈ [key], 1694–1778, French philosopher and author, whose original name was Arouet. One of the towering geniuses in lite...

Roman art

(Encyclopedia)Roman art, works of art produced in ancient Rome and its far-flung provinces. The continued striving after three-dimensional illusionist effects revealed in the various phases of painting was dup...

painting

(Encyclopedia)painting, direct application of pigment to a surface to produce by tones of color or of light and dark some representation or decorative arrangement of natural or imagined forms. See also articles on ...

organ

(Encyclopedia)CE5 Organ organ, a musical wind instrument in which sound is produced by one or more sets of pipes controlled by a keyboard, each pipe producing only one pitch by means of a mechanically produced ...

Visigoths

(Encyclopedia)Visigoths (West Goths), division of the Goths, one of the most important groups of Germans. Having settled in the region W of the Black Sea in the 3d cent. a.d., the Goths soon split into two division...