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The first radio used visible coiled wiring and a large circular wire antenna. It did not have a case or speakers built into it and did not look like what a person of today might expect a radio to look like. The first designs of a functional radio were created in 1888 by Heinrich Rudolf Hertz after spending two years studying James Clerk Maxell's theory on electromagnetism, a theory that proposed the existence of electromagnetic waves. Hertz's design was the first properly functional radio transceiver which could send and receive signals, although these signals weren't informative. It would still be decades until we developed this technology to resemble the humble radio we know and love today.

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11y ago

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