Guglielmo Marconi (Piccirilli) Guglielmo Marconi (Piccirilli) Guglielmo Marconi is a public artwork by Attilio Piccirilli, located at the intersection of 16th and Lamont Streets, N.W., in the Mount Pleasant neighborhood of Washington, D.C., United States. It stands as a tribute to Italian inventor Guglielmo Marconi. It was paid for by public subscription and erected in 1941. The artwork was listed on both the District of Columbia Inventory of Historic Sites and the National Register of Historic Places in 2007. It is a contributing property in the Mount Pleasant Historic District. The monument was originally surveyed as part of the Smithsonian's Save Outdoor Sculpture!
Guglielmo Marconi maximum transmission distance for radio waves. A breakthrough came in the summer of 1895, when Marconi found that much greater range could be achieved after he raised the height of his antenna and, borrowing from a technique used in wired telegraphy, grounding his transmitter and receiver. With these improvements, the system was capable of transmitting signals up to and over hills. The monopole antenna reduced the frequency of the waves compared to the dipole antennas used by Hertz, and radiated vertically polarized radio waves which could travel longer distances. By this point, he concluded that a device could become capable