(Encyclopedia) screw, simple machine consisting essentially of a solid cylinder, usually of metal, around which an inclined plane winds spirally, either clockwise or counterclockwise. It is used to…
(Encyclopedia) Wolfe, Thomas Clayton, 1900–1938, American novelist, b. Asheville, N.C., grad. Univ. of North Carolina, 1920, M.A. Harvard, 1922. An important 20th-century American novelist, Wolfe…
Albanian giants are as tall as pine trees, with black beards that reach to their knees. They catch men to eat and women to fan the flies away. Giants have enormous size and strength packed in a…
U.S. News | World News Here are the key events in business and science news for the month of October 2009. Skeleton of Oldest Human Ancestor Discovered (Oct. 1): A fossil…
Stops Along the WayAnatomy and PhysiologyThe Digestive SystemStops Along the WayIt's a Long Way DownJack-of-All-TradesRunning Along the TractPancreatic Panacea?What We Do with Our Food In order…
