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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...Chile
(Encyclopedia)CE5 Chile chĭlˈē, Span. chēˈlā , officially Republic of Chile, republic (2020 est. pop. 19,116,201), ...Portugal
(Encyclopedia)CE5 Portugal pôrˈchəgəl, officially Portuguese Republic, republic (2015 est. pop. 10,418,000), 35,553 sq mi (92,082 sq km), SW Europe, on the western side of the Iberian Peninsula and including...Browse by Subject
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