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Cai Guo-Qiang

(Encyclopedia)Cai Guo-Qiang, 1957–, Chinese painter and a sculptor especially known for using gunpowder as a medium and explosions and fireworks as means of artistic expression, b. Quanzhou, Fujian prov., studied...

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...

plasma

(Encyclopedia)plasma, in physics, fully ionized gas of low density, containing approximately equal numbers of positive and negative ions (see electron and ion). It is electrically conductive and is affected by magn...

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...

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...

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...

samarium

(Encyclopedia)samarium səmârˈēəm [key], metallic chemical element; symbol Sm; at. no. 62; at. wt. 150.36; m.p. 1,072℃; b.p. 1,791℃; sp. gr. 7.54 at 20℃; valence +2 or +3. Samarium is a lustrous silver-wh...

transmutation of elements

(Encyclopedia)transmutation of elements, conversion of one chemical element into another. The expression has both historical and contemporary significance. The transmutation of certain metals into gold by means of ...

Hiroshima

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