TY - MANSCPT AU - Lafferty,Peter TI - Force & Motion SN - 0789448823 PY - 2000///, c1992 CY - London, New York PB - Dorling Kindersley KW - Force and energy KW - Motion N1 - Includes index. "Discover the forces that set the world in motion - what they are, and how they can be harnessed by machines"-- Cover ER -