Everywhere, things spin—wheels turn, motors hum, tornadoes roar. This book explains the history and basic physics of spinning objects, from yo-yos, drills, propellers, and washing machines, to ballet dancers, dust devils, and bacteria. The book gives instructive, entertaining accounts of everyday sights: Does a curve ball really curve? Why do figure skaters tuck in their arms? Can you make a disposable pen fly? How does a falling cat always land on its feet? Answers to these questions (and many others) tell the amazing story of things that spin.