Here are the key news events of the month organized into three categories: World News, U.S. News, and Business, Society, and Science News. World Putin's…
(Encyclopedia)
CE5
Nitrogen cycle
nitrogen cycle, the continuous flow of nitrogen through the biosphere by the processes of nitrogen fixation, ammonification (decay), nitrification, and…
by Mark D. Hughes photos by Carol M. Highsmith The City of New York is the largest city in the United States, and home to many of the country's most famous and recognizable landmarks…
Record of the Year“Another Day in Paradise,” Phil CollinsAlbum of the YearBack on the Block, Quincy Jones (Qwest/Warner Bros.)Song of the Year“From a Distance,” Julie Gold, songwriterBest New…
—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…
(Encyclopedia) English units of measurement, principal system of weights and measures used in a few nations, the only major industrial one being the United States. It actually consists of two related…
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)
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…
