"The Greenwood Guides to Great Ideas in Science" provides titles in context so that students are able to grasp the significance of profound scientific truths. Each volume - written by a leading historian or philosopher of science - traces the development of a particular scientific concept from ancient times to the present day. Thus, the series helps students understand not only what scientists know, but how they came to know it. Each volume: supports the recommendations of national science education standards on the history and nature of science; provides copious print and electronic resources for further research; is heavily illustrated with historical images and scientific graphs and charts; and, includes a glossary of important terms used in scientific research past and present that enables students to better understand the language of science and a timeline of important events.