Marconi Guglielmo

Guglielmo Marconiphotographed c. 1903

Mar·co·ni

M0103200 (mär-kō′nē), Guglielmo 1874-1937. Italian engineer and inventor who in 1901 transmitted long-wave radio signals across the Atlantic Ocean. He shared the 1909 Nobel Prize in physics.

Mar·co·ni

(mär-kō′nē), Guglielmo 1874-1937. Italian physicist and inventor. In 1901 he used radio waves to transmit signals in Morse code across the Atlantic Ocean. Soon after his experiment, radio waves became established as a medium for communications.