Lesson One Eating Disorders 1
Lesson Two New Scientific Breakthroughs 9
Lesson Three The Popular Science 17
Lesson Four Improving Gene Transfer in Livestock 28
Lesson Five Electrical and Electronic Engineering in the Future 36
Lesson Six Fuel for thought 44
Lesson Seven Deep Chill Triggers Record Ozone Hole 53
Lesson Eight Sea Otter Declines Blamed on Hungry Killers 60
Lesson Nine The Science that Imitates Nature’s Mechanisms 71
Lesson Ten Information Handling Systems 82
Lesson Eleven Medical Waste 89
Lesson Twelve Miniaturization of Equipment 96
Lesson Thirteen Computers in Education 103
Lesson Fourteen DNA Suggests Cultural Traits Affect Whale’s Evolution 114
Lesson Fifteen Robot 124
Lesson Sixteen A High-Tech Dragnet 134
Lesson Seventeen Fingerprint System Extends Arm of the Law 141
Lesson Eighteen Technical Innovations in Pipeline Coatings and Their Impact on the Environment 150
Lesson Nineteen Machine Components 158
Lesson Twenty The Bermuda Triangle：A Mystery of the Air and Sea 165
Lesson Twenty-One Lost and Found in Orbit 174
Lesson Twenty-Two Cardiac Contagion 181
Lesson Twenty-Three Digital Divide 191
Lesson Twenty-Four An Attack on Aging 201
Lesson Twenty-Five Save the Swordfish 208
Lesson Twenty-Six Manual：Milling Machine 214
Lesson Twenty-Seven Transistor 220
Lesson Twenty-Eight Once more with Feeling 230
Lesson Twenty-Nine The Bits and Bytes of Voice 241
Lesson Thirty Tangled in the Net 251