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Inventions 138-139 classification as 139 originality of 138 Inventors 140-155 definition 141 Edison, Thomas Alba 142-146 gramophone 144 incandescent lamp 146 kinetoscope 143 phonograph 142 transmitter 145 Marconi, Guglielmo 147-152 radar 147 telegraph 148-152 Singer, Isaac Merritt 153-154 treadle sewing machine 154 universal acknowledgement of 153 Inventors and patents 153-170 categories 157 |
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Part 1: The Moon & Stars Introduction 1 The Phases of the Moon 24 Characteristics of Stars 38 The Constellations 49 Part 2:Comets & Meteors Cosmic Debris 57 Falling Stars 84 Characteristics of Comets and Meteors 120 Part 3: The Planets The Planets and Their Moons 138 Characteristics of the Planets 156 Planets and Gases 173 Life on the Planets 201 Part 4: Space Exploration Apollo: The Early Years 225 The Race to Space 251 After the Cold War 282 The Universe Beyond 311 Glossary 333 Bibliography 341 Index 352 |
