Physics in the Real World

Physics in the Real World — page 1

Physics in the Real World — page 2 — CONTENTS CHAPTER ONE Disappearing Act 4 CHAPTER TWO A Science as Old as Civilization 12 CHAPTER THREE Careers in Physics 22 CHAPTER FOUR The Future of Physics 32 Fast Facts 42 Stop and Think 44 Glossary 46 Learn More 47 Index 48 About the Author 48

Physics in the Real World — page 3 — D G APH 2008

Physics in the Real World — page 4 — CHAPTER ONE DISAPPEARING ACT In a laboratory a physicist can make things disappear He lines up four lenses They are like those found in eyeglasses But these lenses do not help a person see Instead they bend light around an object This makes that object appear invisible The physicist looks through the lenses It seems as though the object is not there at all P h y s i c s m a k e s i n c r e d i b l e t e c h n o l o g i e s s u c h a s i n v i s i b i l i t y possible 5

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