Basic Physics, A Self teaching Guide - Karl F. Kuhn, John Wiley & Sons, 1979 Those who find the pendulum tough to understand and have been overwhelmed by The Science of Clocks and Watches and The Horological Science Newsletter might want to give this book a try. It is written with the concept of self education in mind. While it covers over 23 different areas of Physics, the chapters of most interest to people on this mb will be the first 4. Forces and Motion, Newton's Laws of Motion, The Conservation of Momentum and Energy, and Gravity. From there you can proceed to the chapter on Wave Motion that has some solid info on pendulums. Some other areas that help enhance the understanding of some things connected to clocks are chapters on Sound, Magnetism and Magnetic Effects, etc. There are review questions in each chapter and the answers are also given. By the time you are finished with this book you will have a good understanding of the basics of some of the science aspects of our clocks. It's self teaching format and easy to read approach will have the reader wearing a pocket protector in no time!