Guglielmo Marconi

Guglielmo Marconi lived from 1874 till 1937. He developed a way of “wireless” communication. He found that you could use radio waves as a signaling system. Marconi discovered that a circuit carrying an electric current that rapidly alternates direction produces radio waves. The sound wave is a type of compression or longitudinal wave. In a compression or longitudinal wave the vibrations happen in the same direction as the wave’s velocity. A compression or longitudinal wave looks …

…for short distance overland transmissions. Short waves are reflected off the top of the ionosphere. Low frequency signals have long wavelengths. Low frequency signals from transmitters can reach distant places by repeated reflections between the ionosphere and the ground. Guglielmo Marconi was the first to use radio waves foe a practical signaling system. He made it possible to use the wireless communication technique. He studied how radio waves work and how they can be used.