(Encyclopedia) Green, Thomas Hill, 1836–82, English idealist philosopher. Educated at Oxford, he was associated with the university all his life. He was professor of moral philosophy there from 1878…
(Encyclopedia) ultimatumultimatumŭlˌtĭmāˈtəm [key], in international law, final, definitive terms submitted by one disputant nation to the other for immediate acceptance or rejection. Since refusal…
(Encyclopedia) jatrophajatrophajăˈtrəfə [key], any plant of a widely distributed genus (Japtropha) of perennial herbs, shrubs, and trees in the family Euphorbiaceae (spurge family), native to…
(Encyclopedia) Allais, Maurice Félix CharlesAllais, Maurice Félix Charlesmôrēsˈ shärl älĕˈ [key], 1911–2010, French economist, Ph.D. Univ. of Paris, 1949. After working in the French mine…
(Encyclopedia) Andronicus I (Andronicus Comnenus)Andronicus Iăndrənīˈkəs kŏmnēˈnəs [key], 1120?–1185, Byzantine emperor (1183–85), nephew of John II. He acceded to the throne by strangling his cousin…
(Encyclopedia) half-life, measure of the average lifetime of a radioactive substance (see radioactivity) or an unstable subatomic particle. One half-life is the time required for one half of any…
(Encyclopedia) Hastings, city and district, East Sussex, SE England. A resort and residential city, Hastings is backed by cliffs and has a 3-mi (4.8-km…
(Encyclopedia) John of Austria, 1545–78, Spanish admiral and general; illegitimate son of Holy Roman Emperor Charles V. He was acknowledged in his father's will and was recognized by his half-brother…
(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…