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Dolby, Ray Milton

(Encyclopedia)Dolby, Ray Milton, 1933–2013, American inventor, audio engineer, and corporate executive, B.S. Stanford, 1957, Ph.D. Cambridge, 1961. While a teenager, he worked for Ampex Corp. (1949–57), helping...

Yerkes, Charles Tyson

(Encyclopedia)Yerkes, Charles Tyson yûrˈkēz, –kəs [key], 1837–1905, American financier, b. Philadelphia. He began his business career as a clerk in a Philadelphia grain commission house. He became a broker ...

Linnaeus, Carolus

(Encyclopedia)Linnaeus, Carolus kärōˈləs lĭnāˈəs [key], 1707–78, Swedish botanist and taxonomist, considered the founder of the binomial system of nomenclature and the originator of modern scientific clas...

weights and measures

(Encyclopedia)CE5 weights and measures, units and standards for expressing the amount of some quantity, such as length, capacity, or weight; the science of measurement standards and methods is known as metrology...

Iberian Mountains

(Encyclopedia)Iberian Mountains ībĭrˈēən [key], mountain system, extending c.250 mi (400 km) along the northeastern edge of the Meseta (central plateau), NE Spain. Moncayo (7,590 ft/2,313 m high) is the highes...

Laurens, Henry

(Encyclopedia)Laurens, Henry lôrˈənz, lärˈ– [key], 1724–92, political leader in the American Revolution, b. Charleston, S.C. A wealthy merchant and planter, he was, in the years preceding the Revolution, a...

Johnson, William Samuel

(Encyclopedia)Johnson, William Samuel, 1727–1819, American political leader and president of Columbia College (1787–1800), b. Stratford, Conn. A lawyer in Connecticut, he soon became a leading figure in the col...

Green River

(Encyclopedia)Green River. 1 River, 370 mi (595 km) long, rising in central Ky. and flowing generally NW, through Mammoth Cave National Park, to the Ohio River near Evansville, Ind. Locks and dams make the Green Ri...

Sullivan, John

(Encyclopedia)Sullivan, John, 1740–95, American Revolutionary general, b. Somersworth, N.H. He was a lawyer and a delegate (1774–75, 1780–81) to the Continental Congress but is better remembered as a military...

Agassiz, Lake

(Encyclopedia)Agassiz, Lake ăgˈəsē [key], glacial lake of the Pleistocene epoch, c.700 mi (1,130 km) long, 250 mi (400 km) wide, formed by the melting of the continental ice sheet beginning some 14,000 years ag...