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Strauss, David Friedrich

(Encyclopedia) Strauss, David FriedrichStrauss, David Friedrichdäˈvēt frēˈdrĭkh shtrous [key], 1808–74, German theologian and philosopher. In Berlin he studied (1831–32) Hegelian philosophy. As tutor…

specific heat

(Encyclopedia) specific heat, ratio of the heat capacity of a substance to the heat capacity of a reference substance, usually water. Heat capacity is the amount of heat needed to change the…

Port-au-Prince

(Encyclopedia) Port-au-PrincePort-au-Princepôrt-ə-prĭnsˈ, Fr. pôr-tō-prăNsˈ [key], city (1995 est. pop. 846,200), capital of Haiti, SW Haiti, on a bay at the end of the Gulf of Gonâve. The country's…

Scott, George C.

(Encyclopedia) Scott, George C. (George Campbell Scott), 1927–99, American actor, b. Wise, Va. Fiery and intense, Scott played his first major roles in Richard III, The Merchant of Venice, and As You…

sapphire

(Encyclopedia) sapphire, precious stone. A transparent blue corundum, it is classified among the most valuable of gems. Sapphires are found chiefly in Madagascar, Sri Lanka, and Myanmar and also in…

Arica

(Encyclopedia) Arica Arica ärēˈkä [key], city, N Chile, on the Pacific Ocean, just south of the Peruvian border and at the northern limit of the Atacama Desert. Peru ceded…

arithmetic

(Encyclopedia) arithmetic, branch of mathematics commonly considered a separate branch but in actuality a part of algebra. Conventionally the term has been most widely applied to simple teaching of…

Gurdon, Sir John Bertrand

(Encyclopedia) Gurdon, Sir John Bertrand, 1933–, British biologist, Ph.D. Oxford, 1962. He has been a researcher at Cambridge since 1971. Gurdon was the joint recipient of the 2012 Nobel Prize in…

hydrogen sulfide

(Encyclopedia) hydrogen sulfide, chemical compound, H2S, a colorless, extremely poisonous gas that has a very disagreeable odor, much like that of rotten eggs. It is slightly soluble in water and is…

John Frederick I

(Encyclopedia) John Frederick I, 1503–54, elector (1532–47) and duke (1547–54) of Saxony; last elector of the Ernestine branch of the house of Wettin. Like his father, John the Steadfast, whom he…