electromagnetic waves

Heinrich Hertz and the Transmission of Electromagnetic Waves

Heinrich Hertz and the Transmission of Electromagnetic Waves

On November 13, 1886, German physicist Heinrich Hertz succeeded to transmit electromagnetic waves from a sender to a receiver in Karlsruhe. Hertz conclusively proved the existence of the electromagnetic waves theorized by James Clerk Maxwell’s electromagnetic theory of light. The unit of frequency – cycle per second – was named the “hertz” in his honor. Heinrich Hertz studied science and engineering in Dresden, Munich, and Berlin under Gustav R. Kirchhoff and Hermann von…
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Alexander Popov and his Radio Receiver

Alexander Popov and his Radio Receiver

On March 4, 1859, Russian physicist Alexander Stepanovich Popov was born. Alexander Popov is acclaimed in his homeland and eastern European countries as the inventor of radio. In 1895 he presented a paper on a wireless lightning detector he had built that worked via using a coherer to detect radio noise from lightning strikes. Born in the town Krasnoturinsk, Sverdlovsk Oblast in the Urals as the son of a priest, Popov became interested in…
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