Examine the natural forces of gravity and friction that are constantly at work on Earth. Then discover the principles and forces that govern moving objects — and how we use them to our advantage. Includes four feature segments.

Facts About Forces — Laws of Motion — Rotation and Revolution — How We Fly

 Grade Level: 3 - 5

REUPLOAD NEEDED

Introduction to Modern Navigation System

Introduction to Modern Navigation Systems offers an efficient algorithm for polar navigation. It also shows how to enhance the performance of the inertial system when aided by the Global Positioning System. It is an appropriate textbook for senior undergraduate and graduate students in aeronautical and electrical engineering. It could also be used as a reference book for practitioners in the field. The emerging technology of very inexpensive inertial sensors is available for navigation as never before. The book lays the analytical foundation for understanding and implementing the navigation equations. It starts by demystifying the central theme of the frame rotation ...