The most widely used science reference of its kind in print, the new third edition of this invaluable resource reinforces its position as the most complete, concise, and easy-to-use single-volume scientific and technical encyclopaedia on the market today. The new edition of this best-selling encyclopaedia features: 7,900 alphabetically arranged articles - 300 entirely new to this edition, and many others extensively revised; 1,600 high-quality photographs and line drawings - plus hundreds of tables, charts, and graphs; Contributions from 3,000 world renowned scientists and engineers - including 21 Nobel laureates; A 30,000-entry analytical index; Extensive cross references and bibliographies. Since the material has been careful condensed from the continuously updated database of the widely acclaimed 20-volume Encyclopaedia of Science & Technology, Seventh Edition, the authority of the Concise Encyclopaedia remains unmatched. No other single source offers professionals, students, and science enthusiasts such comprehensive, up-to-date, and reliable information on so many topics - all in a highly readable and accessible format.