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Malthus, Thomas Robert

(Encyclopedia)Malthus, Thomas Robert mălˈthəs [key], 1766–1834, English economist, sociologist, and pioneer in modern population study. A graduate of Cambridge, he was a professor at the East India College, Lo...

Thomas, Robert Bailey

(Encyclopedia)Thomas, Robert Bailey, 1766–1846, American journalist, b. Grafton, Mass. He was the founder and long-time editor (1792–1846) of The Farmer's Almanac[k] (later The Old Farmer's Almanac[k]). The wor...

Cech, Thomas Robert

(Encyclopedia)Cech, Thomas Robert chĕk [key], 1947–, American microbiologist, b. Chicago, grad. Univ. of California, Berkeley. A professor at the Univ. of Colorado, he discovered that RNA could function as enzym...

diminishing returns, law of

(Encyclopedia)diminishing returns, law of, in economics, law stating that if one factor of production is increased while the others remain constant, the overall returns will relatively decrease after a certain poin...

Tompion, Thomas

(Encyclopedia)Tompion, Thomas, 1639?–1713, English clockmaker. When the Royal Observatory at Greenwich was established in 1676, Tompion was chosen to make two clocks, to be wound only once a year, which proved to...

Smith, Robert

(Encyclopedia)Smith, Robert, 1757–1842, U.S. government official, b. Lancaster, Pa. Admitted to the bar in 1786, he practiced law in Baltimore before serving in the Maryland state senate (1793–95) and in the Ba...

Say, Thomas

(Encyclopedia)Say, Thomas, 1787–1843, American naturalist, b. Philadelphia. He went on collecting expeditions to Georgia and Florida and, with Stephen H. Long, to the Rocky Mts. and up the Mississippi and Minneso...

Feke, Robert

(Encyclopedia)Feke, Robert fēk [key], c.1705–c.1750, early American portrait painter, b. Oyster Bay, N.Y. He practiced in Newport, R.I., New York City, Philadelphia, and Boston. He probably studied in Europe for...

Burton, Robert

(Encyclopedia)Burton, Robert, 1577–1640, English clergyman and scholar, b. Leicestershire, educated at Oxford. He served as librarian at Christ Church, Oxford, all his life; in addition he was vicar of St. Thomas...

Willing, Thomas

(Encyclopedia)Willing, Thomas, 1731–1821, American merchant and financier, b. Philadelphia. He studied law in London. Returning to Philadelphia in 1749, he entered his father's business and later established with...