Elements of Radiotelegraphy Weightman, Gavin, Signor Marconi's magic box: the most remarkable invention of the 19th century & the amateur inventor whose genius sparked a revolution, 1st Da Capo Press ed., Cambridge, MA : Da Capo Press, 2003. Winkler, Jonathan Reed. Nexus: Strategic Communications and American Security in World War I. (Cambridge, MA: Harvard University Press, 2008). Account of rivalry between Marconi's firm and the United States government during World War I. The above started out as a translation based on the article in the Italian Wikipedia at :it:Elettra (nave 1904) but was subsequently enlarged with in-line citations being added. Ships of Italy History of radio World War I electronics Italy in World War I Italy in World War II Steam yachts 1904 ships