Heinrich Rudolf Hertz
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Deutsch: Heinrich Rudolf Hertz (* 22. Februar 1857 in Hamburg, † 1. Januar 1894 in Bonn) war ein deutscher Physiker.
English: Heinrich Rudolf Hertz (February 22, 1857, in Hamburg - January 1, 1894, in Bonn), was the German physicist for whom the hertz, the SI unit of frequency, is named. In 1888, he was the first to demonstrate the existence of electromagnetic radiation by building apparatus to produce radio waves.

