with him CQ to astronauts transmissions from space childhood kitchen table memories of listening For my dad the ham radio enthusiast and the
CONTENTS INTRODUCTION TUNE IN CHAPTER 1 THE DEFENDING CHAMP CHAPTER 2 THE CHALLENGER CHAPTER 3 THE GREAT RADIO RACE CHAPTER 4 AFTER THE BATTLE INVENTOR MATCHUP TIMELINE SOURCE NOTES GLOSSARY FURTHER INFORMATION INDEX
INTRODUCTION TUNE IN A song plays softly from the speakers of a car speeding down the highway The driver clicks off the radio but the radio waves broadcasting the song are still present invisible in the night air In a nearby building two scientists are harvesting or collecting radio waves that are not being used The scientists have discovered that the energy from unused radio waves can power small devices such as smoke alarms Instead of letting this energy go to waste they work to turn these radio waves into usable power Just like all star inventors years before them these scientists are investigating the potential of radio waves This exciting modern work could be just as important as the invention of the first radio Radio technology has come a long way since this early 1914 radio model
The future of radio technology might mean harnessing unused radio waves as a source of energy The radio allows humans to harness radio waves to transmit sound The invention of the radio revolutionized communication in the early twentieth century replacing telegraph systems which delivered information by sending electric signals through long distance wires Since radio transmissions came through the air instead of along telegraph wires radios could be used just about anywhere The new technology completely reshaped society Suddenly millions of listeners could tune in to hear news music entertainment and advertisements An entire industry was born But competition to invent the radio was fierce Two inventors squared off in a race to be the champion of the radio Who came out on top Many people say Guglielmo Marconi is the winner in the battle to invent the radio Others claim that a challenger Nikola Tesla holds the title Tune in to the play by play action to see who really deserves credit for this incredible invention
