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Mann, Sally

(Encyclopedia)Mann, Sally, 1951–, American photographer, b. Lexington, Va., as Sally Munger, studied Bennington College, Hollins College (B.A. 1974, M.A. 1975). Interested in older photographic techniques, Mann u...

Koroma, Ernest Bai

(Encyclopedia)Koroma, Ernest Bai bī kərōmäˈ [key], 1953–, Sierra Leonean political, grad. Fourah Bay College, Univ. of Sierra Leone (1976). An insurance company executive (1978–2001), he retired to enter p...

Sandby, Paul

(Encyclopedia)Sandby, Paul săndˈbē [key], 1725–1809, English watercolorist and draftsman. He was employed to survey the Highlands of Scotland after the 1745 rebellion. During his years in Scotland (1746–51) ...

teleportation, in science fiction

(Encyclopedia)teleportation, in science fiction, the process of instantaneously transporting a person or an object between two points, usually by disappearing from one place and reappearing at a second place as a p...

tenure, in education

(Encyclopedia)tenure, in education, a guarantee of the permanence of a college or university teacher's position, awarded upon successful completion of a probationary period, usually seven years. Tenure is designed ...

thread

(Encyclopedia)thread, a fine twist of fibrous material, distinguished from yarn in general by being smoother, stronger, and more pliable; it is also better suited to sewing, embroidery, and lace making. Sewing or s...

toluene

(Encyclopedia)toluene mĕthˌəlbĕnˈzēn [key], C7H8, colorless liquid aromatic hydrocarbon that melts at −95℃ and boils at 110.8℃. It is insoluble in water but highly soluble in most organic solvents. Tolu...

Torrington

(Encyclopedia)Torrington, city (1990 pop. 33,687), Litchfield co., NW Conn., on the Naugatuck River; inc. 1740. It is the industrial and commercial hub of NW Connecticut and is known for its metal (especially brass...

Schrock, Richard Royce

(Encyclopedia)Schrock, Richard Royce, 1945–, American chemist, b. Berne, Ind., Ph.D Harvard, 1971. After working for three years with the Dupont Company, he became (1972) a professor at the Massachusetts Institut...

Sheffield, city, England

(Encyclopedia)Sheffield, city and metropolitan borough (1991 pop. 470,685), N England, at the confluence of the Don River and four tributaries. Sheffield was one of the leading industrial cities of England. It has ...