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Nordenskjöld, Nils Adolf Erik, Baron
(Encyclopedia)Nordenskjöld, Nils Adolf Erik, Baron nĭls äˈdôlf āˈrĭk no͞orˈdənshöld [key], 1832–1901, Swedish geologist and arctic explorer, first to navigate the Northeast Passage, b. Finland. He ser...Romagna
(Encyclopedia)Romagna rōmäˈnyä [key], historic region, N central Italy, bordering on the Adriatic Sea in the east, now included in the regions of Emilia-Romagna, Marche, and Tuscany. Although its boundaries var...Reinhardt, Max
(Encyclopedia)Reinhardt, Max, 1873–1943, Austrian theatrical producer and director, originally named Max Goldmann. After acting under Otto Brahm at the Deutsches Theater in Berlin, he managed (1902–5) his own t...memory, in psychology
(Encyclopedia)memory, in psychology, the storing of learned information, and the ability to recall that which has been stored. It has been hypothesized that three processes occur in remembering: perception and regi...Harvard University
(Encyclopedia)Harvard University, mainly at Cambridge, Mass., including Harvard College, the oldest American college. From two distinct schools, Radcliffe College for women (est. 1879, chartered 1894) and Harvar...Wright brothers
(Encyclopedia)Wright brothers, American airplane inventors and aviation pioneers. Orville Wright 1871–1948, was born in Dayton, Ohio, and Wilbur Wright, 1867–1912, near New Castle, Ind. Their interest in aviati...protactinium
(Encyclopedia)protactinium prōˌtăktĭnˈēəm [key], radioactive chemical element; symbol Pa; at. no. 91; mass number of most stable isotope 231; m.p. greater than 1,600℃; b.p. 4,026℃; sp. gr. 15.37 (calcula...rhenium
(Encyclopedia)rhenium rēˈnēəm [key], metallic chemical element; symbol Re; at. no. 75; at. wt. 186.207; m.p. about 3,180℃; b.p. about 5,625℃; sp. gr. 21.02 at 20℃; valence −1, +2, +3, +4, +5, +6, or +7....Pietism
(Encyclopedia)Pietism pīˈətĭzəm [key], a movement in the Lutheran Church (see Lutheranism), most influential between the latter part of the 17th cent. and the middle of the 18th. It was an effort to stir the c...vacuum
(Encyclopedia)vacuum, theoretically, space without matter in it. A perfect vacuum has never been obtained; the best human-generated vacuums contain less than 100,000 gas molecules per cc, compared to about 30 billi...Browse by Subject
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