CONTENTS CHAPTER ONE More than Meets the Eye 4 CHAPTER TWO Ball Sports 14 CHAPTER THREE Speed Sports 26 CHAPTER FOUR Aerial Sports 34 Fast Facts 42 Stop and Think 44 Glossary 46 Learn More 47 Index 48 About the Author 48
CHAPTER ONE MORE THAN MEETS THE EYE It's the World Series the bottom of the ninth inning The team at bat is down by one run and there are two outs The count is one ball and two strikes The pitcher winds up and delivers a pitch As he releases the ball he flicks his wrist to spin it During the ball’s flight toward the plate the laces disturb the air This creates high pressure on top of the ball and low pressure below it The ball starts to drop Then Pitchers use the laws of aerodynamics to throw pitches that are difficult for batters to hit 5