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battery, electric

(Encyclopedia)CE5 Lead storage cell: At the lead-dioxide electrode, electrons from the circuit combine with lead dioxide and sulfuric acid to form lead sulfate and water. At the spongy-lead electrode, lead react...

Benton, Thomas Hart, U.S. Senator

(Encyclopedia)Benton, Thomas Hart, 1782–1858, U.S. Senator (1821–51), b. Hillsboro, N.C. Benton moved to Tennessee in 1809, was admitted to the bar in 1811, and served (1809–11) in the state senate. In 1815, ...

Ormonde, Thomas Butler, 10th earl of

(Encyclopedia)Ormonde, Thomas Butler, 10th earl of, 1532–1614, Irish nobleman. Brought up at the English court, he was the first of his family to embrace Protestantism. He succeeded to the earldom of Ormonde in 1...

learning disabilities

(Encyclopedia)learning disabilities, in education, any of various disorders involved in understanding or using spoken or written language, including difficulties in listening, thinking, talking, reading, writing, s...

Selkirk, Thomas Douglas, 5th earl of

(Encyclopedia)Selkirk, Thomas Douglas, 5th earl of, 1771–1820, Scottish philanthropist, founder of the Red River Settlement. Emigration to America seemed to him the best solution for the poverty of his countrymen...

Farmer, Moses Gerrish

(Encyclopedia)Farmer, Moses Gerrish, 1820–93, American inventor, b. Boscawen, N.H. He helped build and maintain some of the pioneer telegraph lines of Massachusetts and experimented in multiple telegraphy. He exh...

Lumière, Louis Jean

(Encyclopedia)Lumière, Louis Jean ōgüstˈ [key], 1862–1954, French inventors, brothers. They invented the Cinématographe, which was patented and demonstrated in 1895. This mechanism was the first to photograp...

Fairfax of Cameron, Thomas Fairfax, 6th Baron

(Encyclopedia)Fairfax of Cameron, Thomas Fairfax, 6th Baron, 1693–1781, proprietor of the Northern Neck of Virginia, b. England. He inherited the Northern Neck, comprising the land between the Rappahannock and Po...

Prince, Thomas, 1687–1758, American clergyman, scholar, and historian

(Encyclopedia)Prince, Thomas, 1687–1758, American clergyman, scholar, and historian, b. Sandwich, Mass., grad. Harvard, 1709. From 1709 to 1717 he was abroad; he studied in London and preached at a Congregational...

Kennelly, Arthur Edwin

(Encyclopedia)Kennelly, Arthur Edwin kĕnˈəlē [key], 1861–1939, American electrical engineer, b. Bombay (now Mumbai), India, educated at University College School, London. He was Edison's chief electrical assi...