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For going on two decades, Scientific American's "Ask the Experts" column has been answering reader questions on all fields of science. We've taken your questions from the basic to the esoteric and reached out to top scientists, professors, and researchers to find out why the sky is blue or whether we really only use 10 percent of our brains.

Now, we've combed through our archives and have compiled some of the most interesting questions (and answers) into a series of books. Organized by subject, each title provides short, easily digestible answers to questions on that particular branch of the sciences.

The first title in our series--Physics and Math--explains a wide range of natural phenomena and mathematical concepts. Have you ever wondered what exactly antimatter is? How about game theory, quantum mechanics, and the origin of pi? Mathematicians and professors from universities across the country tackle these topics, drawing on their extensive expertise to give answers that are at once accurate and comprehensible by those who haven't studied physics or math since high school.