Radio Waves

Radio Waves

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Caption: An historical illustration of radio waves. Heinrich Rudolf Hertz (1857-1894) discovered radio waves in 1886-1889. He used Maxwell's theories to construct an oscillating electrical circuit with a spark gap. With such a circuit, Maxwell had predicted that electromagnetic radiation would be produced. Hertz showed this to be correct, and devised a loop antenna to detect the waves. He was also able to show that these waves travelled at the speed of light.

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Keywords: 19th century, art, artwork, bw, circuit, drawing, electomagnetism, electric circuit, electrical circuit, electromagnetic radiation, hertz, historic, historical, history, illustration, loop antenna, nineteenth century, radio wave, spark gap

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