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Hindenburg, Paul von

(Encyclopedia)Hindenburg, Paul von hĭnˈdənbûrg, Ger. poul fən hĭnˈdənbo͝ork [key], 1847–1934, German field marshal and president (1925–34), b. Poznan (then in Prussia). His full name was Paul Ludwig Ha...

light

(Encyclopedia)light, visible electromagnetic radiation. Of the entire electromagnetic spectrum, the human eye is sensitive to only a tiny part, the part that is called light. The wavelengths of visible light range ...

modern dance

(Encyclopedia)modern dance, serious theatrical dance forms that are distinct from both ballet and the show dancing of the musical comedy or variety stage. By the late 20th cent., distinctions among modern da...

Mycenaean civilization

(Encyclopedia)Mycenaean civilization mīsēnēˈən [key], an ancient Aegean civilization known from the excavations at Mycenae and other sites. They were first undertaken by Heinrich Schliemann and others after 18...

Humboldt, Alexander, Freiherr von

(Encyclopedia)Humboldt, Alexander, Freiherr von hŭmˈbōlt, Ger. älĕksänˈdər frīˈhĕr fən ho͝omˈbôlt [key], 1769–1859, German naturalist, inventor, explorer, and author, the most eminent scientist of ...

Heidegger, Martin

(Encyclopedia)Heidegger, Martin märˈtēn hīˈdĕger [key], 1889–1976, German philosopher. As a student at Freiburg, Heidegger was influenced by the neo-Kantianism of Heinrich Rickert and the phenomenology of E...

sunspots

(Encyclopedia)sunspots, dark, usually irregularly shaped spots on the sun's surface that are actually solar magnetic storms. The spots are darker because the temperature of the spots is lower than that of the surro...

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...

semantics

(Encyclopedia)semantics [Gr.,=significant] in general, the study of the relationship between words and meanings. The empirical study of word meanings and sentence meanings in existing languages is a branch of lingu...

German literature

(Encyclopedia)German literature, works in the German language by German, Austrian, Austro-Hungarian, and Swiss authors, as well as by writers of German in other countries. The postwar decades saw a gradual litera...