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nitrous oxide

(Encyclopedia)nitrous oxide or nitrogen (I) oxide, chemical compound, N2O, a colorless gas with a sweetish taste and odor. Its density is 1.977 grams per liter at STP. It is soluble in water, alcohol, ether, and ot...

Kelley, William Darrah

(Encyclopedia)Kelley, William Darrah dârˈə [key], 1814–90, American legislator, b. Philadelphia. He was admitted (1841) to the bar and served (1847–56) as judge of the court of common pleas for Philadelphia....

casting

(Encyclopedia)casting or founding, shaping of metal by melting and pouring into a mold. Most castings, especially large ones, are made in sand molds. Sand, mixed with a binder to hold it together, is pressed around...

Bahariya

(Encyclopedia)Bahariya or Baharia bäˌhärēˈə [key], oasis (1996 est. pop. 25,000), in the Libyan Desert, central Egypt, c.200 mi (322 km) south-southwest of Alexandria. Connected by numerous caravan routes wit...

Rhodes, James Ford

(Encyclopedia)Rhodes, James Ford rōdz [key], 1848–1927, American historian, b. Ohio City (now part of Cleveland). While studying in Europe he visited ironworks and steelworks in Germany and Great Britain, and up...

social security

(Encyclopedia)social security, government program designed to provide for the basic economic security and welfare of individuals and their dependents. The programs classified under the term social security differ f...

Dover, cities, United States

(Encyclopedia)Dover. 1 City (2020 pop. 39,403), state capital, and seat of Kent co., central Del., on the St. Jones River; founded 1683 on orders of William ...

Cooper, Peter

(Encyclopedia)Cooper, Peter, 1791–1883, American inventor, industrialist, and philanthropist, b. New York City. After achieving success in the glue business, Cooper, with two partners, erected (1829) the Canton I...

Alhambra, city, United States

(Encyclopedia)Alhambra ălhămˈbrə [key], city (2020 pop. 82,868), Los Angeles co., S Calif., a suburb E of Los Angeles; inc. 1903. It has iron and aluminum foundries and manufactures...

Huddersfield

(Encyclopedia)Huddersfield, city, Kirklees metropolitan district, N central England, on the Colne River. Its textile industry, including cotton, woolen, and rayon goo...