"Version: 20190701"--Title page verso."A Morgan & Claypool publication as part of IOP Concise Physics"--Title page verso.Includes bibliographical references.1. Introduction -- 2. Kinematics (Y?und?ongxu?e) -- 3. Force (l?i) -- 4. Torque (l?ij?u) -- 5. Energy (?eng) and Momentum (D?ongli?ang) -- 6. Experiments 6-1 -- 6.1. Paper making (Z?aozh?i) -- 6.2. Stress-strain curves of silk thread (S?aix…