McGraw-Hill Encyclopedia of Science & Technology (GVRL)
Part of the Gale Virtual Reference Library (GVRL)
Provides thorough, up-to-date overviews of a broad range of contemporary scientific and technical topics, including the latest developments in nearly 100 fields, and well-illustrated, detailed coverage of major discoveries, breakthroughs, and milestones. Contains more than 7,000 articles by 5,000 contributors, with 12,000 digitally prepared illustrations. Part of the Gale Virtual Reference Library.