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David E.Hughes noticed that spakes could be heard in a telophone reciver when experamenting with a carbon microphone
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The first radio was created by Marconi
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1900 Brazilian priest Roberto tansmitted the human voice
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Julio Cervera Baviera developed radio in spain
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The wave tansmitter was awarded
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Marconi established the first commercial translantic radio communication service
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on october 14,1920 the first collage begin radio broadcasting from Union College Schenectady
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AT&T comminced the first telephone saervice
