Columbia Encyclopedia

Search results

500 results found

Woodward, Robert Burns

(Encyclopedia)Woodward, Robert Burns, 1917–80, American chemist and educator, b. Boston, grad. Massachusetts Institute of Technology (S.B., 1936; Ph.D., 1937). He taught at Harvard from 1938, becoming Donner prof...

Berthollet, Claude Louis, Comte

(Encyclopedia)Berthollet, Claude Louis, Comte klōd lwē, kôNt bĕrtōlāˈ [key], 1748–1822, French chemist. His contributions to chemistry include the analysis of ammonia and prussic acid and the discovery of ...

Richards, Theodore William

(Encyclopedia)Richards, Theodore William, 1868–1928, American chemist, b. Germantown, Pa., Ph.D. Harvard, 1888. Richards was a professor at Harvard from 1891 until his death in 1928. In 1914 he received the Nobel...

Love Canal

(Encyclopedia)Love Canal, section of Niagara Falls, N.Y., that formerly contained a canal that was used as chemical disposal site. In the 1940s and 50s the empty canal was used by a chemical and plastics company to...

La Guajira

(Encyclopedia)La Guajira lä gwähēˈrä [key], peninsula, c.100 mi (160 km) long, N Colombia, extending into the Caribbean Sea. Punta Gallinas, at the tip, is the northernmost point of South America. On the spars...

Bear, river, United States

(Encyclopedia)Bear, river, 350 mi (563 km) long, rising in the Uinta Mts., NE Utah, and flowing in a U-shaped course NW through Wyoming and Idaho, then S into Utah to enter Great Salt Lake. A perennial stream, the ...

Tulare Lake

(Encyclopedia)Tulare Lake, intermittent lake, in the Central Valley, central Calif. The Kings, Kaweah, and Kern rivers at one time flowed into the lake, but their waters have been diverted for irrigation. The land ...

pork

(Encyclopedia)pork, flesh of swine prepared as food, one of the principal commodities of the meatpacking industry. Pork has long been a staple food in most of the world, although religious taboos have limited its u...

Staffordshire ware

(Encyclopedia)Staffordshire ware, various products of the Potteries district, one of the most famous areas in England for the production of pottery. Late 17th-century slipware such as that attributed to Thomas Toft...

cream of tartar

(Encyclopedia)cream of tartar, white crystalline powder. Chemically it is potassium hydrogen tartrate, KC4H5O6, the acidic potassium salt of tartaric acid. It is used as the leavening agent in baking powders. An im...

Browse by Subject