(Encyclopedia) Lang Lang, 1982–, Chinese virtuoso pianist. A child prodigy, he studied at the Central Music Conservatory, Beijing, and the Curtis Institute, Philadelphia. Noted for the romantic,…
(Encyclopedia) abrasive, material used to grind, smooth, cut, or polish another substance. Natural abrasives include sand, pumice, corundum, and ground quartz. Carborundum (silicon carbide) and…
(Encyclopedia) Carver, George Washington, 1864?–1943, American agricultural chemist, b. Diamond, Mo., grad. Iowa State College (now Iowa State Univ.; B.S., 1894; M.A. 1896). Born a slave, he later,…
Photoelectric Effect Explained, the Quantum Strikes AgainTheories of the UniverseThat Old Quantum TheoryPlanck's ConstantPhotoelectric Effect Explained, the Quantum Strikes AgainBohr's Atomic Theory…
You can't get much older than 6 million years. That is when the first human beings, known as Hominidae, evolved. They were not like apes; they had bigger brains, different teeth, and walked…
U.S. Department of State Background Note Index: People History Government and Political Conditions Economy Foreign Relations U.S.-Sierra Leone Relations PEOPLE The indigenous population is…
Editor Paul Lagassé
Senior Editors Lora Goldman Archie Hobson Susan R. Norton
Associate Editors Barry J. Katzen Alan D. Levy Theodore Zinn
Contributors Curt Bertschi Helen…
Sierra Leone: Major Players in the Civil War The countries and people involved in the civil war by David Johnson Government of Sierra LeoneAlready the victim of one coup, President Kabbah's grip…
(Encyclopedia) Mogae, Festus Gontebanye 1939–, Botswanan political leader, president of Botswana (1998–2008), b. Serowe. After studying economics at Sussex and Oxford universities, he returned to…
