(Encyclopedia) watch, small, portable timepiece usually designed to be worn on the person. Other kinds of timepieces are generally referred to as clocks. At one time it was generally believed that…
The world's most sophisticated and expensive science project by Mark Hughes and Beth Rowen Two scientists checking equipment in the central tube of the LHC. Photo…
WHAT DO MICROCHIPS DO? HOW ARE MICROCHIPS MADE? WHAT IS BINARY CODE? LOGIC GATESFIND OUT MOREA microchip is an electronic device built as a single unit from many miniature components—mainly…
AIRLINERSHELICOPTERSFIND OUT MOREBoth aeroplanes and HELICOPTERS are aircraft. These machines use engines and aerofoil wings to lift off the ground and move through the air. Aeroplanes use…
The sport of the Vikings by John Gettings and Christine Frantz Bjorn Daehlie Related Links 2010 Winter Olympics Cross-Country Through the YearsEncyclopedia: Skiing…
(Encyclopedia) needle, implement of metal or other material used to carry the thread in sewing and in various forms of needlework and manufacturing. The earliest needles were merely awls or punches.…
(Encyclopedia) Nurhaci or NurhachiNurhachin&oomacr;rˈhächē [key], 1559–1626, Manchu national founder. He consolidated the Manchu tribes under his control and founded the administration that later…
(Encyclopedia) NanchangNanchangnänˈchängˈ [key], city (1994 est. pop. 1,168,700), capital of Jiangxi prov., China, on the Gan River, near the southern end of Poyang Lake. A major transportation…
(Encyclopedia) MacVeagh, Isaac WayneMacVeagh, Isaac Wayneməkvāˈ [key], 1833–1917, American political figure, U.S. Attorney General (1881), b. Chester co., Pa. A lawyer, he was the son-in-law of Simon…
