Download or read book The Britannica Guide to Sound and Light written by Erik Gregersen Associate Editor, Astronomy and Space Exploration and published by The Rosen Publishing Group, Inc. This book was released on 2011-01-15 with total page 734 pages. Available in PDF, EPUB and Kindle. Book excerpt: Discusses sound and light, including how the waves travel through different forms of matter, how human senses detect and analyze them, and describes electromagnetic radiation, echolocation, and optics.