banked-up water level
51Norden bombsight — The Norden bombsight at the Computer History Museum in Mountain View, California. This example does not have the associated autopilot attached …
52Baltic Sea — a sea in N Europe, bounded by Denmark, Sweden, Finland, Estonia, Latvia, Lithuania, Poland, and Germany. ab. 160,000 sq. mi. (414,000 sq. km). * * * Sea, northern Europe. An arm of the Atlantic Ocean, connecting with the North Sea, it is 1,056 mi …
53Saint Lawrence River and Seaway — ▪ river, North America Introduction hydrographic system of east central North America. It connects the North River (source of the St. Louis River, in the U.S. state of Minnesota, which flows into Lake Superior) with Cabot Strait, leading into… …
54Flying and gliding animals — A number of animals have evolved aerial locomotion, either by powered flight or by gliding. Flying and gliding animals have evolved separately many times, without any single ancestor. Flight has evolved at least four times, in the insects,… …
55Wright brothers — Orville Wright Photo: 1903 Born August 19 …
56River Ouse, Sussex — View looking north towards Cliffe at high tide from Southease swing bridge The River Ouse (   …
57athletics — /ath let iks/, n. 1. (usually used with a pl. v.) athletic sports, as running, rowing, or boxing. 2. Brit. track and field events. 3. (usually used with a sing. v.) the practice of athletic exercises; the principles of athletic training. [1595… …
58road — roadless, adj. roadlessness, n. /rohd/, n. 1. a long, narrow stretch with a smoothed or paved surface, made for traveling by motor vehicle, carriage, etc., between two or more points; street or highway. 2. a way or course: the road to peace. 3. a …
59Operation Vengeance — Part of the Pacific Theater of World War II …
60Tennessee — /ten euh see /, n. 1. a state in the SE United States. 4,590,750; 42,246 sq. mi. (109,415 sq. km). Cap.: Nashville. Abbr.: TN (for use with zip code), Tenn. 2. a river flowing from E Tennessee through N Alabama, W Tennessee, and SW Kentucky into… …
