Physics Today (World Book Encyclopedia of Science) Hardcover – January 1, 1987 by World Book 
 
The object of the series is to explain for an average family readership, adults and children alike, the many aspects of science that are not only fascinating in themselves but are also vitally important for an understanding of the world today. To achieve this the book has been made straightforward and concise, accurate in content, and clearly and attractively presented. This book is a readily accessible source of scientific information
 
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