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California, University of

(Encyclopedia)California, University of, at ten campuses, main campus at Berkeley; land-grant and state supported; coeducational; chartered 1868, opened 1869 when it took over the College of California (est. 1853 a...

Sagan, Carl Edward

(Encyclopedia)Sagan, Carl Edward sāˈgən [key], 1934–96, American astronomer and popularizer of science, b. New York City. Early in his career he investigated radio emissions from Venus and concluded that the c...

thulium

(Encyclopedia)thulium tho͞oˈlēəm [key] [from Thule, an ancient name for Scandinavia], metallic chemical element; symbol Tm; at. no. 69; at. wt. 168.93421; m.p. about 1,545℃; b.p. 1,947℃; sp. gr. 9.3; valenc...

Butler, Nicholas Murray

(Encyclopedia)Butler, Nicholas Murray, 1862–1947, American educator, president of Columbia Univ. (1902–45), b. Elizabeth, N.J., grad. Columbia (B.A., 1882; Ph.D., 1884). Holding a Columbia fellowship, he studie...

Stresemann, Gustav

(Encyclopedia)Stresemann, Gustav go͝osˈtäf shtrāˈzəmän [key], 1878–1929, German statesman. A founder (1902) and director (until 1918) of the Association of Saxon Industrialists, Stresemann entered the Reic...

strategy and tactics

(Encyclopedia)strategy and tactics, in warfare, related terms referring, respectively, to large-scale and small-scale planning to achieve military success. Strategy may be defined as the general scheme of the condu...

Clemenceau, Georges

(Encyclopedia)Clemenceau, Georges zhôrzh klāmäNsōˈ [key], 1841–1929, French political figure, twice premier (1906–9, 1917–20), called “the Tiger.” He was trained as a doctor, but his republicanism br...

Hiroshima

(Encyclopedia)Hiroshima hĭrˌōshēˈmə, hērōˈshmä [key], city, capital of Hiroshima prefectu...

hafnium

(Encyclopedia)hafnium hăfˈnēəm [key], metallic chemical element; symbol Hf; at. no. 72; at. wt. 178.49; m.p. about 2,227℃; b.p. 4,602℃; sp. gr. 13.31 at 20℃; valence +4. Hafnium is a lustrous, ductile, si...

centrifuge

(Encyclopedia)centrifuge sĕnˈtrəfyo͞oj [key], device using centrifugal force to separate two or more substances of different density, e.g., two liquids or a liquid and a solid. The centrifuge consists of a fixe...