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thallium

(Encyclopedia)thallium thălˈēəm [key], metallic chemical element; symbol Tl; at. no. 81; interval in which at. wt. ranges 204.382–204.385; m.p. 303.5℃; b.p. about 1,457℃; sp. gr. 11.85 at 20℃; valence +...

Taurus, mountain chain, Turkey

(Encyclopedia)Taurus tôrōsˈ [key], mountain chain, S Turkey, extending c.350 mi (560 km) roughly parallel to the Mediterranean coast of S Asia Minor. It forms the southern border of the Anatolian plateau. Its no...

Daguerre, Louis Jacques Mandé

(Encyclopedia)Daguerre, Louis Jacques Mandé lwē zhäk mäNdāˈ dägârˈ [key], 1789–1851, French scene painter and physicist, inventor of the daguerreotype, a photograph produced on a silver-coated copper pla...

Godkin, Edwin Lawrence

(Encyclopedia)Godkin, Edwin Lawrence gŏdˈkĭn [key], 1831–1902, American editor, b. Moyne, Ireland, of English parentage. His idealism found expression in his History of Hungary and the Magyars (1853) and won h...

Goodall, Jane

(Encyclopedia)Goodall, Jane go͝odˈôl [key], 1934–, English ethologist and primatologist. After working with Louis Leakey but without any formal scientific training, she established (1960) a research camp in th...

aye-aye

(Encyclopedia)aye-aye īˈīˈ [key], name for an aberrant primate, Daubentonia madagascariensis, related to the lemurs but distinguished by its specialized teeth and fingers. A large nocturnal and arboreal primate...

Altgeld, John Peter

(Encyclopedia)Altgeld, John Peter ältˈgĕlt [key], 1847–1902, American politician, governor of Illinois (1892–96), b. Germany. He was taken by his immigrant parents to Ohio, where he grew up with little forma...

Kandy

(Encyclopedia)Kandy kănˈdē [key], city (1995 est. pop. 108,000), capital of Central prov., Sri Lanka, on the Kandy Plateau. Once the capital of the Sinhalese Kandyan kingdom, it is now a mountain resort and mark...

stonework

(Encyclopedia)stonework, term applied to various types of work—that of the lapidary who shapes, cuts, and polishes gemstones or engraves them for seals and ornaments; of the jeweler or artisan who mounts or encru...

burn

(Encyclopedia)burn, injury resulting from exposure to heat, electricity, radiation, or caustic chemicals. Three degrees of burn are commonly recognized. In first-degree burns the outer layer of skin, called epiderm...