The development of universal scientific laws, physical principles, viable theories, and testable hypotheses has a long history, one which has included many errors and many exciting breakthroughs. Students can explore that fascinating history from ancient times to the present in this unique reference collection of laws, theories, and principles related to the physical and biological scientific fields. Each entry clearly defines a concept in easy-to-understand language. Discussions of the history and development behind the concepts in each entry provide students with a broad understanding of the exploratory nature of science, how conclusions are drawn and how the study of science affects our lives.

About the Author

ROBERT E. KREBS is a former science teacher and university research administrator, retired as Associate Dean for Research at the University of Illinois Health Sciences Center, Chicago. Dr. Krebs now writes science books.

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