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substance

(Encyclopedia)substance, in philosophy, term used to denote the changeless substratum presumed in some philosophies to be present in all being. Aristotle defined substance as that which possesses attributes but is ...

surface tension

(Encyclopedia)surface tension, tendency of liquids to reduce their exposed surface to the smallest possible area. A drop of water, for example, tends to assume the shape of a sphere. The phenomenon is attributed to...

Scully, Vincent Joseph, Jr.

(Encyclopedia)Scully, Vincent Joseph, Jr., 1920–2018, American architectural historian, b. New Haven, Conn., grad. Yale (B.A., 1940; Ph.D., 1949). As a professor of art history at Yale (1947–91, though he taugh...

Raeburn, Sir Henry

(Encyclopedia)Raeburn, Sir Henry rāˈbərn [key], 1756–1823, Scottish portrait painter, b. near Edinburgh. He was apprenticed to a goldsmith at 15 and he showed considerable talent. In 1784 he went to London and...

Staël, Germaine de

(Encyclopedia)Staël, Germaine de zhĕrmĕnˈ də stäl [key], 1766–1817, French-Swiss woman of letters, whose full name was Anne Louise Germaine Necker, baronne de Staël-Holstein. Born in Paris, the daughter of...

Northumberland, Henry Percy, 1st earl of

(Encyclopedia)Northumberland, Henry Percy, 1st earl of, 1342–1408, English nobleman. He fought in France in the Hundred Years War, became warden of the Scottish Marches, and was a supporter of John Wyclif. Create...

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....

long march

(Encyclopedia)long march, Chin., Changzheng, the journey of c.6,000 mi (9,660 km) undertaken by the Red Army of China in 1934–35. When their Jiangxi prov. Soviet base was encircled by the Nationalist army of Chia...

Rogers, Will

(Encyclopedia)Rogers, Will (William Penn Adair Rogers), 1879–1935, American humorist, b. Oolagah, Indian Territory (now in Oklahoma). In his youth he worked as a cowboy in Oklahoma, and after traveling over the w...

Æthelwulf

(Encyclopedia)Æthelwulf ĕˈthəlwo͝olf, ăˈ– [key], d. 858, king of Wessex (839–56), son and successor of Egbert; father of Æthelbert, Æthelred, and Alfred. He was lord of Kent, Surrey, Sussex, and Essex ...