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Steele, Joel Dorman
(Encyclopedia)Steele, Joel Dorman, 1836–86, American educator and textbook writer, b. Lima, N.Y., grad. Genesee College (now Syracuse Univ.), 1858. While serving as principal of the Elmira (N.Y.) Free Academy (18...sandblast
(Encyclopedia)sandblast, stream of sand or other abrasive particles driven by a jet of compressed air or water or by centrifugal force against a surface to clean or abrade it. When centrifugal force is used, the ab...recognition
(Encyclopedia)recognition, acknowledgment of the admission of new states into the international community by political action of states that are already members. Its derivation is found in the policy of the older E...air conditioning
(Encyclopedia) CE5 Cross section of air conditioning unit. air conditioning, mechanical process for controlling the humidity, temperature, cleanliness, and circulation of air in buildings and rooms. Indoor air i...smoking
(Encyclopedia)smoking, inhalation and exhalation of the fumes of burning tobacco in cigars and cigarettes and pipes; in the 21st cent., vaping, the similar use of e-cigarettes, also has become common. Some persons ...Ctesibius
(Encyclopedia)Ctesibius tĭsĭbˈēəs [key], fl. 2d cent. b.c., Alexandrian Greek inventor. He reputedly was the first to discover and apply the expansive power of air as a motive force. Among the inventions ascri...breakwater
(Encyclopedia)breakwater, offshore structure to protect a harbor from wave energy or deflect currents. When it also serves as a pier, it is called a quay; when covered by a roadway it is called a mole. In the Unite...George VI, king of Great Britain and Ireland
(Encyclopedia)George VI (Albert Frederick Arthur George), 1895–1952, king of Great Britain and Northern Ireland (1936–52), second son of George V; successor of his elder brother, Edward VIII. He attended the ro...United States
(Encyclopedia) CE5 CE5 CE5 United States, officially United States of America, republic (2015 est. pop. 319,929,000), 3,539,227 sq mi (9,166,598 sq km), North America. The United States is the world's third l...Fort Niagara
(Encyclopedia)Fort Niagara, post on the southern shore of Lake Ontario, at the mouth of the Niagara River, NW N.Y. It was strategically located on the water route to the fur lands. French explorer Robert LaSalle er...Browse by Subject
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