When your students need current information on the inventions and discoveries that have made a great impact on the world -- from the principle of buoyancy to the atomic bomb, from blood transfusion to microcomputers -- direct them to Eureka! Written in nontechnical language, Eureka! 's 600 entries and 430 photographs and illustrations explore important inventions such as the sun dial, but focus on significant breakthroughs from the Industrial Revolution to the present. Eureka! is a six volume set. Features include a table of contents by scientific field and an index.