Who names newly discovered planets? What exactly are black holes? Where
are there the most earthquakes? When did the first Homo sapiens walk the
earth? Why is the night sky dark? How does the fluoride in toothpaste
prevent cavities? Since 1845, Scientific American has answered questions
and provided the best information available in all areas of science.
Now, Scientific American is proud to present an accessible, one-volume
reference covering all the sciences. Whether you want to examine the
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for the answers you need. * Over 500 biographies of key science figures
* Thousands of glossary terms * Hundreds of useful Web sites *
Tables, charts, diagrams, and illustrations * Sidebars featuring
fascinating facts, mnemonic aids, and quizzes * Essays exploring ideas
in-depth