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Heinrich was able to conclusively prove transmitted airborne electromagnetic waves in an experiment confirming Maxwell's theory of electromagnetism.
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Guglielmo built the first complete, commercially successful wireless telegraphy system based airborne Hertzian waves.
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Marconi was field testing his system but even with improvements he was only able to transmit signals up to one-half mile, a distance Oliver Lodge had predicted in 1894 as the maximum transmission distance for radio waves.
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Roberto transmitted the human voice wireless for approximately a half mile.
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Reginald used a synchronous rotary-spark translator for the first radio program broadcast from Ocean Bluff-Brant Rock, Massachusetts
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The first radio news program was broadcast August 31, 1920 by station 8MK in Detroit, Michigan, which survives today as all-news format stations WWJ under ownership of the CBS network
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In 1947 AT&T commercialized the Mobile Telephone service. From its start in St.Louis in 1946, AT&T then announced Mobile telephone service to one hundred towns and highway corridors by 1948
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"Internet Talk Radio" which was the "first computer-radio talk show, each week interviewing a computer expert.".[9][10] The first Internet concert was broadcast on June 24, 1993 by the band Severe Tire.
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The US Congress passed the Digital Millennium Copyright Act (DMCA). One result of the DMCA is that performance royalties are to be paid for satellite radio and Internet radio broadcasts in addition to publishing royalties. In contrast, traditional radio broadcasters pay only publishing royalties and no performance royalties.
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A revenue from online streaming music radio was US$49 million. By 2006, that figure rose to US$500 million.[3]
