Heinrich Rudolf Hertz proves existence of radio waves

In 1887, Heinrich Rudolf Hertz, a German physicist, conclusively proved the existence of radio waves, a theoretical prediction of James Clerk Maxwell. Hertz’s experiments demonstrated that electromagnetic waves could be generated and detected, confirming Maxwell’s equations. Using a spark gap transmitter and a receiver, Hertz produced and observed radio waves, proving they behaved like light waves with properties such as reflection, refraction, and polarization. This groundbreaking discovery laid the foundation for the development of wireless communication. For amateur radio operators, Hertz’s work is foundational, enabling the transmission and reception of radio signals, and fostering advancements in radio technology that continue to benefit society today.