Boomerangs, gracefully curved artifacts used for hunting, are quintessentially Australian. Or so we thought. More than 40,000 years ago, when mammoths still roamed the frigid plains of Ice Age Europe, ...

Introduction -- Aerodynamics of balls -- Bouncing balls, airbags, and tumbleweeds -- Spinning bullets, bomb, and rockets -- Satellites and spin -- Encountering asteroids and comets -- Planetary probes ...