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battery, electric

(Encyclopedia)CE5 Lead storage cell: At the lead-dioxide electrode, electrons from the circuit combine with lead dioxide and sulfuric acid to form lead sulfate and water. At the spongy-lead electrode, lead react...

Flanders

(Encyclopedia)Flanders flănˈdərz [key], former county in the Low Countries, extending along the North Sea and W of the Scheldt (Escaut) River. It is divided among East Flanders and West Flanders provs., Belgium;...

opera

(Encyclopedia)opera, drama set to music. In the early part of the 20th cent. the foremost operatic composer was Richard Strauss. Although influenced by Wagner, he composed operas with even richer and more stunnin...

Italian art

(Encyclopedia)Italian art, works of art produced in the geographic region that now constitutes the nation of Italy. Italian art has engendered great public interest and involvement, resulting in the consistent prod...

electricity

(Encyclopedia)CE5 Electrical and radio symbols electricity, class of phenomena arising from the existence of charge. The basic unit of charge is that on the proton or electron—the proton's charge is designate...

Italian literature

(Encyclopedia)Italian literature, writings in the Italian language, as distinct from earlier works in Latin and French. In the second half of the 19th cent. Francesco De Sanctis, literary critic and historian, la...

romanticism

(Encyclopedia)romanticism, term loosely applied to literary and artistic movements of the late 18th and 19th cent. Romanticism in music was characterized by an emphasis on emotion and great freedom of form. It...

physics

(Encyclopedia)physics, branch of science traditionally defined as the study of matter, energy, and the relation between them; it was called natural philosophy until the late 19th cent. and is still known by this na...

Netherlands

(Encyclopedia)CE5 Netherlands nĕᵺˈərləndz [key], Du. Nederland or Koninkrijk der Nederlanden, officially Kingdom of the Netherlands, constitutional monarchy (2015 est. pop. 16,938,000), 15,963 sq mi (41,34...

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