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Hertz detects and produces radio waves.
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This scientist starts to build the very first radio.
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Final touches are being applied. Tested out to make sure that the radios are working properly.
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Advirtisements from department stores became popular.
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Edwin invented Frequency Modulation.
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Helpful to Americans as they had more freedom to listen to the radio.
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Start playing hit songs from famous people such as Elvis Presley.
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Young listeners love the new music. Much better than AM radio.
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Every ethnic group in America have a radio station to listen to. Radio stations are booming.
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Music stations left the AM radio for FM. AM was and stiil known as the talk radio, news, sports, etc.
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Radios sound continues to become clearer and more enjoyable to listen to.
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Radios are a part of everyday life. They can be found in many different shapes and sizes.
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They can produce high quality sound like that found on a CD. Digital radios can be programmed for specific stations, types of music, news, etc. Eventually, radios will have mini-computers built in to process sounds in numerical patterns "digits" rather than waveform. This will allow listeners to program their radios for favorite radio stations, music type, traffic information, and much more
