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Blatch, Harriet Stanton

(Encyclopedia)Blatch, Harriet Stanton (Harriet Eaton Stanton Blatch), 1856–1940, American labor reformer and woman suffrage leader, b. Seneca Falls, N.Y. A daughter of suffragist Elizabeth Cady Stanton and abolit...

adolescence

(Encyclopedia)adolescence, time of life from onset of puberty to full adulthood. The exact period of adolescence, which varies from person to person, falls approximately between the ages 12 and 20 and encompasses b...

smart weapon

(Encyclopedia)smart weapon, missile or steerable bomb equipped with a laser, television, or satellite guidance system. Smart weapons, which use guidance systems that rely on external assistance, are distinguished f...

Colorado, rivers, United States and Mexico

(Encyclopedia)Colorado [1] kŏlərădˈə, –rădˈō, –räˈdō [2] kŏlərāˈdə, –räˈdə [key]. 1 Great river of the SW United States, 1,450 mi (2,334 km) long, rising in the Rocky Mts. of N Colo., and f...

Easter

(Encyclopedia)Easter [A.S. Eastre, name of a spring goddess], chief Christian feast, commemorating the resurrection of Jesus after his crucifixion. In the West, Easter is celebrated on the Sunday following the full...

Death Valley

(Encyclopedia)Death Valley, SE Calif. and SW Nev., a deep, arid basin, 140 mi (225 km) long, bordered on the W by the Panamint Range and on the E by the Amargosa Range. In summer the valley has recorded some of the...

iridium

(Encyclopedia)iridium ĭrĭdˈēəm [key], metallic chemical element; symbol Ir; at. no. 77; at. wt. 192.217; m.p. about 2,410℃; b.p. about 4,130℃; sp. gr. 22.55 at 20℃; valence +3 or +4. Iridium is a very ha...

Hudson River school

(Encyclopedia)Hudson River school, group of American landscape painters, working from 1825 to 1875. The 19th-century romantic movements of England, Germany, and France were introduced to the United States by such w...

Livingstone, David

(Encyclopedia)Livingstone, David lĭvˈĭngstən, –stōnˌ [key], 1813–73, Scottish missionary and explorer in Africa, the first European to cross the African continent. From 1841 to 1852, while a medical missi...

Kitaj, R. B.

(Encyclopedia)Kitaj, R. B. (Ronald Brooks Kitaj) kĭtīˈ [key], 1932–2007, American painter, b. Chagrin Falls, Ohio. In 1958 he moved to London, where he attended the Ruskin School, Oxford, and the Royal College...