Light and sound allow us to perceive the world around us, from appreciating music and art to learning the details of atomic structure. Because of their importance in human experience, light and sound have long been the subject of scientific inquiry. How are sound and light related? How do physiology and neural processing allow us to hear and see the world around us? What are the origins of color and musical pitch? This course introduces the science and technology of light and sound to students not majoring in physics. We will start with the origins of sound and light as wave phenomena, and go on to topics including color, the optics of vision, the meaning of musical pitch and tone, and the physical basis of hearing. We will also discuss some recent technological applications of light, such as lasers and optical communications. The class will meet for two 75-minute periods each week, including some lectures and some conference sections, in which small groups of students work together on hands-on, interactive experiments. A detailed week-by-week schedule of activities will be presented at the beginning of the semester. Evaluation will be based on class participation, periodic homework, one in-class exam, a short oral presentation, and a final exam. No prerequisites.