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A carregar... Making Contact!: Marconi Goes Wirelesspor Monica Kulling
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As a boy, Marconi was fascinated with radio waves and learned Morse code, the language of the telegraph. A retired telegraph operator taught him how to tap messages on the telegraph machine. At the age of 20, Marconi realized that no one had invented a wireless telegraph. Determined to find a way to use radio waves to send wireless messages, Marconi found his calling. And, thanks to his persistence, on December 12, 1901, for the first time ever, a wireless signal travelled between two continents. The rest is history, brought to life in Tundra's Great Idea series. Não foram encontradas descrições de bibliotecas. |
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Google Books — A carregar... GénerosSem géneros Sistema Decimal de Melvil (DDC)621.384092Technology Engineering and allied operations Applied physics Electrical, magnetic, optical, communications, computer engineering; electronics, lighting Electronics, communications engineering Radar, RadioClassificação da Biblioteca do Congresso dos EUA (LCC)AvaliaçãoMédia:
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