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yttrium
(Encyclopedia)yttrium ĭtˈrēəm [key] [for Ytterby, a town in Sweden], metallic chemical element; symbol Y; at. no. 39; at. wt. 88.90585; m.p. about 1,522℃; b.p. 3,338℃; sp. gr. about 4.45; valence +3. Yttriu...King, Rufus
(Encyclopedia)King, Rufus, 1755–1827, American political leader, b. Scarboro, Maine (then a district of Massachusetts). He served briefly in the American Revolution and practiced law in Massachusetts before servi...Anna, czarina of Russia
(Encyclopedia)Anna (Anna Ivanovna) änˈnə ĭväˈnôvnə [key], 1693–1740, czarina of Russia (1730–40), daughter of Ivan V and niece of Peter I (Peter the Great). On the death of her distant cousin, Peter II,...Daudet, Alphonse
(Encyclopedia)Daudet, Alphonse älfôNsˈ dōdāˈ [key], 1840–97, French writer, b. Nîmes (Provence). Daudet made his mark with gentle naturalistic stories and novels portraying French life both in the province...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...hardness
(Encyclopedia)hardness, property of matter commonly described as the resistance of a substance to being scratched by another substance. The degree of hardness is relative, different substances being compared with o...Göttingen
(Encyclopedia)Göttingen götˈĭng-ən [key], city, Lower Saxony, central Germany, on the Leine River. It is ...Zinzendorf, Nikolaus Ludwig, Graf von
(Encyclopedia)Zinzendorf, Nikolaus Ludwig, Graf von nēˈkōlous lo͝otˈvĭkh gräf fən tsĭnˈtsəndôrf [key], 1700–1760, German churchman, patron and bishop of the refounded Moravian Church, b. Dresden. Rear...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...kindergarten
(Encyclopedia)kindergarten [Ger.,=garden of children], system of preschool education. Friedrich Froebel designed (1837) the kindergarten to provide an educational situation less formal than that of the elementary s...Browse by Subject
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