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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...

progressivism

(Encyclopedia)progressivism, in U.S. history, a broadly based reform movement that reached its height early in the 20th cent. In the decades following the Civil War rapid industrialization transformed the United St...

transistor

(Encyclopedia)CE5 Simple transistor circuit transistor, three-terminal, solid-state electronic device used for amplification and switching. It is the solid-state analog to the triode electron tube; the transist...

National Socialism

(Encyclopedia)National Socialism or Nazism, doctrines and policies of the National Socialist German Workers' party, which ruled Germany under Adolf Hitler from 1933 to 1945. In German the party name was Nationalsoz...

Metternich, Clemens Wenzel Nepomuk Lothar, Fürst von

(Encyclopedia)Metternich, Clemens Wenzel Nepomuk Lothar, Fürst von klāˈmĕns vĕnˈtsəl nāˈpōmo͝ok lōˈtär fürst fən mĕtˈərnĭkh [key], 1773–1859, Austrian statesman and arbiter of post-Napoleonic ...

song

(Encyclopedia)song, relatively brief, simple vocal composition, usually a setting of a poetic text, often strophic, for accompanied solo voice. The song literature of Western music embodies two broad classification...

electoral college

(Encyclopedia)electoral college, in U.S. government, the body of electors that chooses the president and vice president. The Constitution, in Article 2, Section 1, provides: “Each State shall appoint, in such Man...

labor law

(Encyclopedia)labor law, legislation dealing with human beings in their capacity as workers or wage earners. The Industrial Revolution, by introducing the machine and factory production, greatly expanded the class ...

Kant, Immanuel

(Encyclopedia)Kant, Immanuel ĭmänˈo͞oĕl känt [key], 1724–1804, German metaphysician, one of the greatest figures in philosophy, b. Königsberg (now Kaliningrad, Russia). The impact of Kant's work has be...

Holocaust

(Encyclopedia)Holocaust hŏlˈəkôstˌ, hōˈlə– [key], name given to the period of persecution and extermination of European Jews by Nazi Germany. Romani (Gypsies), homosexuals, Jehovah's Witnesses, the disabl...