(Encyclopedia)
CE5
Internal-combustion engines: In the four-stroke reciprocating engine (above), a mixture of fuel and air is taken into the chamber on the down-stroke of the piston, is compressed…
—By Borgna BrunnerSedna Debuts, Rattling Poor Pluto Artist's rendition of the planetoid Sedna On March 15, 2004, astronomers confirmed the discovery of the most distant object ever identified in…
Candidates for U.S. Senate34 Senate seats are up for grabs by Ann-Marie Imbornoni RELATED LINKS Facts about SenatorsFacts about GovernorsElectoral College v. The…
(Encyclopedia) horror or horror story, literary genre in which an eerie, tense, often suspenseful atmosphere typically builds to the discovery of something repugnant, such as cannibalism, incest, or…
(Encyclopedia) glass, hard substance, usually brittle and transparent, composed chiefly of silicates and an alkali fused at high temperature.
Glass has become invaluable in modern architecture,…
(Encyclopedia) locomotive, vehicle used to pull a train of unpowered railroad cars.
Richard Trevithick, a British engineer and inventor, built and operated (1803–4) the first successful steam…
U.S. Department of State Background Note Index: Historical and Cultural Highlights Government and Political Conditions Defense and Military Issues Foreign Relations U.S. Policy Toward North…
(Encyclopedia) Franklin, Benjamin, 1706–90, American statesman, printer, scientist, and writer, b. Boston. The only American of the colonial period to earn a European reputation as a natural…