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Bayeux tapestry

(Encyclopedia) Bayeux tapestry. This so-called tapestry is in fact an embroidery that chronicles the Norman Conquest of England by William the Conqueror (William I) in 1066. It is a long, narrow…

Tancred, king of Sicily

(Encyclopedia) Tancred (Tancred of Lecce)Tancredtăngˈkrĭd;, lĕˈchā [key], b. 1130 or 1134, d. 1194, king of Sicily (1190–94), illegitimate son of Roger of Apulia and grandson of Roger II of Sicily.…

yard

(Encyclopedia) yard, abbr. yd, basic unit of length in the customary system of English units of measurement; all other units in the English system, such as the inch, foot, rod, and mile, are derived…

Cameron, John

(Encyclopedia) Cameron, JohnCameron, Johnkămˈərən [key], c.1579–1625, Scottish scholar and theologian. As teacher, lecturer, and preacher at Bordeaux, Saumur, and other cities on the Continent, he…

Peter Damian, Saint

(Encyclopedia) Peter Damian, SaintPeter Damian, Saintdāˈmēən [key], Ital. Pietro Damiani, 1007?–1072, Italian reformer, Doctor of the Church, b. Ravenna. He became a Camaldolese monk at Fonte-…

separation

(Encyclopedia) separation, in law, either the voluntary agreement of husband and wife to live apart or a partial dissolution of the marriage relation by court order. The marriage bond remains, and…

open education

(Encyclopedia) open education, also known as open classroom, type of educational reform. The central tenet of this informal system is that children want to learn and will do so naturally if left to…

short takeoff and landing aircraft

(Encyclopedia) short takeoff and landing aircraft (STOL), heavier-than-air craft, capable of rising from and descending to the ground with only a short length of runway, but incapable of doing so…

sidereal time

(Encyclopedia) sidereal time (ST), time measured relative to the fixed stars; thus, the sidereal day is the period during which the earth completes one rotation on its axis so that some chosen star…

Space Force, United States

(Encyclopedia) Space Force, United States (USSF), military force that forms a separate service within the U.S. Dept. of the Air Force, est. Dec. 20, 2019, by act of Congress. The head of the Space…