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pilot
(Encyclopedia)pilot, person responsible for safe navigation of a ship or airplane. A ship's pilot is an individual possessing local knowledge of coastal waters. Usually licensed by public authority (in the United S...Smeaton, John
(Encyclopedia)Smeaton, John smēˈtən [key], 1724–92, English civil engineer. He became an instrument maker, improved navigation instruments, and carried out many experiments on mechanical apparatus. Between 175...Saint Marys, rivers, United States and Canada
(Encyclopedia)Saint Marys. 1 River, c.175 mi (280 km) long, rising in Okefenokee Swamp, SE Ga., and flowing, with a great southern bend, E to the Atlantic Ocean. It forms part of the Georgia–Florida line. The low...Maskelyne, Nevil
(Encyclopedia)Maskelyne, Nevil măsˈkəlīn [key], 1732–1811, English astronomer. Maskelyne received his education at Westminster School and Trinity College, Cambridge. Appointed astronomer royal at the Royal Ob...direction finder
(Encyclopedia)direction finder, electronic device used to determine the position of a ship or aircraft. In a simple direction finder a radio receiver is equipped with a revolving directional antenna. The antenna re...Ebro
(Encyclopedia)Ebro ēˈbrō, āˈbrō [key], Catalan Ebre,longest river entirely in Spain, c.575 mi (925 km) long, rising in the Cantabrian Mts., N Spain, and flowing SE between the Pyrenees and the Iberian Mts. pa...Bowditch, Nathaniel
(Encyclopedia)Bowditch, Nathaniel, 1773–1838, American navigator and mathematician, b. Salem, Mass. He had no formal schooling after the age of 10. In 1795 he went to sea, and on five long voyages he carried out ...Tennessee-Tombigbee Waterway
(Encyclopedia)Tennessee-Tombigbee Waterway, system of navigation channels, 234 mi (377 km) long, Ala. and Miss., connecting the Tennessee River with the Tombigbee River and, via the Mobile River, with the Gulf of M...Trent Canal
(Encyclopedia)Trent Canal, waterway system, 240 mi (386 km) long, S Ont., Canada, connecting Lake Ontario, from the Bay of Quinte, with Lake Huron at Georgian Bay; built 1833–48. It utilizes the Trent River to Ri...Santee, river, United States
(Encyclopedia)Santee săntēˈ [key], river, 143 mi (230 km) long, formed by the confluence of the Congaree and Wateree rivers, central S.C., and flowing SE to the Atlantic Ocean. The Santee-Wateree-Catawba system ...Browse by Subject
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