Invention of radio: Difference between revisions

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In June and July 1923, Marconi's [[shortwave]] transmissions were completed during nights on 97 meters from [[Poldhu|Poldhu Wireless Station]], [[Cornwall]], to his yacht [[Elettra (ship)|Elettra]] in the [[Cape Verde|Cape Verde Islands]]. In September 1924, Marconi transmitted during daytime and nighttime on 32 meters from Poldhu to his yacht in [[Beirut]]. Marconi, in July 1924, entered into contracts with the British General Post Office (GPO) to install telegraphy circuits from London to Australia, India, South Africa and Canada as the main element of the [[Imperial Wireless Chain]]. The UK-to-Canada shortwave "''[[Beam Wireless Service]]''" went into commercial operation on 25 October 1926. Beam Wireless Services from the UK to Australia, South Africa and India went into service in 1927. Electronic components for the system were built at Marconi's New Street wireless factory in [[Chelmsford]].<ref>[http://homepages.tesco.net/~martin.batesuk/marconi/sections_added_1912-1980.htm The Marconi company Departments 1912 - 1970] Martin Bates, accessed 2010-10-04</ref>
 
Marconi would jointly receive the 1909 [[Nobel Prize in Physics]] with [[Karl Ferdinand Braun]] for contributions to the existing radio sciences. Marconi's demonstrations of the use of radio for wireless communications, equipping ships with life saving wireless communications,<ref>United States., & Smith, W. A. (1912). [http://books.google.com/books?id=yQcQAAAAIAAJ "Titanic" disaster: Hearing before a subcommittee of the Committee on Commerce, United States Senate : Sixty-second Congress, second session, pursuant to S. Res. 283, directing the Committee to investigate the causes leading to the wreck of the White Star liner "Titanic" ...] : [April 19-May 25, 1912]. Washington [D.C.: G.P.O.]</ref> establishing the first transatlantic radio service,<ref name="1902pond">In December, 1902, he established wireless telegraphic communication between Canada ([[Cape Breton Island|Cape Breton]]) and England, the first message inaugurating the system being transmitted from the [[Governor General]] of Canada to [[King Edward VII]], and a few weeks later a message inaugurating wireless connection between America ([[Cape Cod, Massachusetts]]) and [[Cornwall, England]] was transmitted from the [[President of the United States]] to the [[King of England]]. ([http://books.google.com/books?id=0O5AEbIB51sC Encyclopaedia of ships and shipping] edited by Herbert B. Mason. The Shipping Encyclopaedia, 1908.)</ref> and building the first stations for the British short wave service, have marked his place in history. Shortly after the turn of the 20th century, the US Patent Office re-awarded Marconi a patent for radio. The {{US patent|RE11913}} was granted on June 4, 1901. Marconi's {{US patent|676332}} was awarded on June 11, 1901, also. This system was more advanced than his previous works. In 1943, a lawsuit regarding Marconi's early United States radio patents were resolved by the [[United States Supreme Court]], who overturned most of these.
 
====Naval wireless====