This updated edition of the bestselling Handy Science Answer Book tackles doezens of new sci-tech topics, as well as your old favorites-from the inner workings of the human body to outer space, and from mathematics and computers to cars, boats, planes, and trains. Handy Science's clear-cut, straightforward style makes answers fun and easy to understand. With more than 100 illustrations and dozens of tables and graphs, it's a friendly resource for browsers, scanners and serious sojourners i