Federation of American Scientists
Fas: Memorial Tribute for Luis W. Alvarez
Read a tribute to Hispanic-American scientist and Nobel Peace prize winner, Luis Alvarez by a fellow scientist. He gives a very detailed account of his life.
Encyclopedia Britannica
Encyclopedia Britannica: Guide to Black History: Nelson Mandela
This entry from Encyclopedia Britannica's Guide to Black History features Nelson Mandela, a black nationalist and first black president of South Africa (1994-99). His negotiations in the early 1990s with South African Pres. F.W. de Klerk...