Guglielmo Marconi Guglielmo Marconi Guglielmo Marconi, 1st Marquis of Marconi (; ; 25 April 187420 July 1937) was an Italian inventor and electrical engineer, known for his pioneering work on long-distance radio transmission, development of Marconi's law, and a radio telegraph system. He is credited as the inventor of radio, and he shared the 1909 Nobel Prize in Physics with Karl Ferdinand Braun "in recognition of their contributions to the development of wireless telegraphy". Marconi was also an entrepreneur, businessman, and founder of The Wireless Telegraph & Signal Company in the United Kingdom in 1897 (which became the Marconi Company). He succeeded
Guglielmo Marconi longwave transmissions travel much farther at night than in the day. During the daytime, signals had been received up to only about , less than half of the distance claimed earlier at Newfoundland, where the transmissions had also taken place during the day. Because of this, Marconi had not fully confirmed the Newfoundland claims, although he did prove that radio signals could be sent for hundreds of kilometres, despite some scientists' belief that they were limited essentially to line-of-sight distances. On 17 December 1902, a transmission from the Marconi station in Glace Bay, Nova Scotia, Canada became the world's first