- Wikipedia

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\"Marconi\" redirects here. For other uses, see Marconi (disambiguation).

Marchese Guglielmo Marconi GCVO FRSA
Marconi in 1908

Member of the Senate of the Kingdom
In office 30 April 1914 \u2013 20 July 1937
Appointed by	Victor Emmanuel III
\n
Personal details
Born	Guglielmo Giovanni Maria Marconi (1874-04-25)25 April 1874 Bologna, Emilia-Romagna, Kingdom of Italy
Died	20 July 1937(1937-07-20) (aged 63) Rome, Kingdom of Italy\n
Education	University of Bologna
Occupations	Engineer inventor
Known for	\n Invention of radio\n Inventing the monopole antenna (1895) \n Inventing the magnetic detector (1902) \n
Political party	PNF (1923\u20131937)
Spouses	\n Beatrice O'Brien \n (m. 1905; div. 1924) \n Maria Cristina Bezzi-Scali [it] \n (m. 1927)
Children	5
Awards	\n Matteucci Medal (1901) \n Nobel Prize in Physics (1909) \n Albert Medal (1914) \n Franklin Medal (1918) \n IRE Medal of Honor (1920) \n John Fritz Medal (1923) \n Kelvin Gold Medal (1932) \n Wilhelm Exner Medal (1934) \n
Honors	See below
Engineering career
Discipline	\n Electrical engineering\n Radio-frequency engineering \n
Employer(s)	Marconi Company
Significant advance	Radio\n

Academic background
Academic advisors	Augusto Righi
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Signature

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\n

Guglielmo Giovanni Maria Marconi, 1st Marquess of Marconi (/m\u0251\u02d0r\u02c8ko\u028ani/; Italian: [\u0261u\u028e\u02c8\u028e\u025blmo mar\u02c8ko\u02d0ni]; 25 April 1874 \u2013 20 July 1937) was an Italian^[1]^[2]^[3]^[4] electrical engineer, inventor, and politician known for his creation of a practical radio wave-based wireless telegraph system.^[5] This led to Marconi being credited as the inventor of radio^[6] and sharing the 1909 Nobel Prize in Physics with Ferdinand Braun \"in recognition of their contributions to the development of wireless telegraphy\".^[7]^[8]^[9]\nHis work laid the foundation for the development of radio, television, and all modern wireless communication systems.^[10]\n

Marconi was also an entrepreneur and businessman who founded the Wireless Telegraph & Signal Company (which became the Marconi Company) in the United Kingdom in 1897. In 1929, Marconi was ennobled as a marquess (marchese) by Victor Emmanuel III. In 1931, he set up Vatican Radio for Pope Pius XI.\n

Biography

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Early years

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Guglielmo Giovanni Maria Marconi^[11]^[12] was born in Palazzo Marescalchi in Bologna on 25 April 1874, the second son of Giuseppe Marconi (an Italian aristocratic landowner from Porretta Terme who lived in the countryside of Pontecchio) and his Irish wife Annie Jameson (daughter of Andrew Jameson of Daphne Castle in County Wexford, a land agent, and wife Margaret, daughter of James Cochrane of Glen Lodge, Sligo, and sister of Scottish naturalist James Sligo Jameson, and granddaughter of John Jameson of Dublin, the Scottish founder of whiskey distillers Jameson & Sons).^[13]^[14] His father, who was a widower with a son, Luigi, married Jameson on 16 April 1864 in Boulogne-sur-Mer, France. Alfonso, Marconi's older brother, was born in 1865. Between the ages of two and six, Marconi and Alfonso lived with their mother in the English town of Bedford. Having an Irish mother helped explain Marconi's many activities in Great Britain and Ireland. When he was three years old, on 4 May 1877, Giuseppe Marconi decided to obtain British citizenship. Marconi could have thus also opted for British citizenship anytime, as both his parents had British citizenship.^[15]\n

Education

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Marconi did not attend school as a child and did not go on to formal higher education.^[16]^[17]^[18] Instead, he learned chemistry, mathematics, and physics at home from a series of private tutors hired by his parents. His family hired additional tutors for Marconi in the winter when they would leave Bologna for the warmer climate of Tuscany or Florence.^[18] Marconi noted an important mentor was professor Vincenzo Rosa, a high school physics teacher in Livorno.^[19]^[17] Rosa taught the 17-year-old Marconi the basics of physical phenomena as well as new theories on electricity. At the age of 18 and back in Bologna, Marconi became acquainted with University of Bologna physicist Augusto Righi, who had done research on Heinrich Hertz's work. Righi permitted Marconi to attend lectures at the university and also to use the university's laboratory and library.^[20]\n

Radio work

[edit]

From youth, Marconi was interested in science and electricity. In the early 1890s, he began working on the idea of \"wireless telegraphy\" \u2013 i.e., the transmission of telegraph messages without connecting wires as used by the electric telegraph. This was not a new idea; numerous investigators and inventors had been exploring wireless telegraph technologies and even building systems using electric conduction, electromagnetic induction and optical (light) signalling for over 50 years, but none had proved technically and commercially successful. A relatively new development came from Heinrich Hertz, who, in 1888, demonstrated that one could produce and detect electromagnetic radiation, based on the work of James Clerk Maxwell. At the time, this radiation was commonly called \"Hertzian\" waves, and is now generally referred to as radio waves.^[21]\n

There was a great deal of interest in radio waves in the physics community, but this interest was in the scientific phenomenon, not in its potential as a communication method. Physicists generally looked on radio waves as an invisible form of light that could only travel along a line of sight path, limiting its range to the visual horizon like existing forms of visual signalling.^[22] Hertz's death in 1894 brought published reviews of his earlier discoveries including a demonstration on the transmission and detection of radio waves by the British physicist Oliver Lodge and an article about Hertz's work by Augusto Righi. Righi's article renewed Marconi's interest in developing a wireless telegraphy system based on radio waves,^[23] a line of inquiry that Marconi noted other inventors did not seem to be pursuing.^[24]\n

Developing radio telegraphy

[edit]

At the age of 20, Marconi began to conduct experiments in radio waves, building much of his own equipment in the attic of his home at the Villa Griffone in Pontecchio (now an administrative subdivision of Sasso Marconi), Italy, with the help of his butler, Mignani. Marconi built on Hertz's original experiments and, at the suggestion of Righi, began using a coherer, an early detector based on the 1890 findings of French physicist \u00c9douard Branly and used in Lodge's experiments, that changed resistance when exposed to radio waves.^[25] In the summer of 1894, he built a storm alarm made up of a battery, a coherer, and an electric bell, which went off when it picked up the radio waves generated by lightning.\n

Late one night, in December 1894, Marconi demonstrated a radio transmitter and receiver to his mother, a set-up that made a bell ring on the other side of the room by pushing a telegraphic button on a bench.^[26]^[25] Supported by his father, Marconi continued to read through the literature and picked up on the ideas of physicists who were experimenting with radio waves. He developed devices, such as portable transmitters and receiver systems, that could work over long distances,^[24] turning what was essentially a laboratory experiment into a useful communication system.^[27] Marconi came up with a functional system with many components:^[28]\n

A relatively simple oscillator or spark-producing radio transmitter;
A wire or metal sheet capacity area suspended at a height above the ground;
A coherer receiver, which was a modification of \u00c9douard Branly's original device with refinements to increase sensitivity and reliability;
A telegraph key to operate the transmitter to send short and long pulses, corresponding to the dots-and-dashes of Morse code; and
A telegraph register activated by the coherer which recorded the received Morse code dots and dashes onto a roll of paper tape.

In the summer of 1895, Marconi moved his experiments outdoors on his father's estate in Bologna. He tried different arrangements and shapes of antenna but even with improvements he was able to transmit signals only up to one half-mile, a distance Oliver Lodge had predicted in 1894 as the maximum transmission distance for radio waves.^[29]\n

Transmission breakthrough

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A breakthrough came in the summer of 1895, when Marconi found that a much greater range could be achieved after he raised the height of his antenna and, borrowing from a technique used in wired telegraphy, grounded his transmitter and receiver. With these improvements, the system was capable of transmitting signals up to 2 miles (3.2 km) and over hills.^[30]^[31] 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 of spanning greater distances, with additional funding and research, and would prove valuable both commercially and militarily. Marconi's experimental apparatus proved to be the first engineering-complete, commercially successful radio transmission system.^[32]^[33]^[34]\n

Marconi applied to the Italian Ministry of Post and Telegraphs, then under the direction of Maggiorino Ferraris,^[35] explaining his wireless telegraph machine and asking for funding, but never received a response. An apocryphal tale claims that the minister (incorrectly named first as Emilio Sineo, later as Pietro Lacava^[36]) wrote \"to the Longara\" on the document, referring to the insane asylum on Via della Lungara in Rome, but the letter was never found.^[37]\n

In 1896, Marconi spoke with his family friend Carlo Gardini, Honorary Consul at the United States Consulate in Bologna, about leaving Italy to go to Great Britain. Gardini wrote a letter of introduction to the Ambassador of Italy in London, Annibale Ferrero, explaining who Marconi was and about his extraordinary discoveries. In his response, Ambassador Ferrero advised them not to reveal Marconi's results until after a patent was obtained. He also encouraged Marconi to come to Britain, where he believed it would be easier to find the necessary funds to convert his experiments into practical use. Finding little interest or appreciation for his work in Italy, Marconi travelled to London in early 1896 at the age of 21, accompanied by his mother, to seek support for his work. (He spoke fluent English in addition to Italian.) Marconi arrived at Dover, and the Customs officer opened his case to find various apparatuses. The customs officer immediately contacted the Admiralty in London. With worries in the UK about Italian anarchists and suspicion Marconi was importing a bomb, his equipment was destroyed.\n

While in the UK, Marconi gained the interest and support of William Preece, the Chief Electrical Engineer of the General Post Office (the GPO). Marconi applied for a patent on 2 June 1896. British Patent number 12039 titled \"Improvements in Transmitting Electrical impulses and Signals, and in Apparatus therefor\", which became the first patent for a communication system based on radio waves.^[38]\n

Demonstrations and achievements

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Marconi made the first demonstration of his system for the British government in July 1896.^[39] A further series of demonstrations for the British followed, and, by March 1897, Marconi had transmitted Morse code signals over a distance of about 3 miles (4.8 km) across Salisbury Plain. On 13 May 1897, Marconi sent the first ever wireless communication over the open sea \u2013 a message was transmitted over the Bristol Channel from Flat Holm Island to Lavernock Point near Cardiff, a distance of 3 miles (4.8 km). The message read \"Are you ready\".^[40] The transmitting equipment was almost immediately relocated to Brean Down Fort on the Somerset coast, stretching the range to 10 miles (16 km).\n

Impressed by these and other demonstrations, Preece introduced Marconi's ongoing work to the general public at two important London lectures: \"Telegraphy without Wires\", at the Toynbee Hall on 11 December 1896; and \"Signalling through Space without Wires\", given to the Royal Institution on 4 June 1897.^[41]^[42]\n

Numerous additional demonstrations followed, and Marconi began to receive international attention. In July 1897, he carried out a series of tests at La Spezia, in his home country, for the Italian government. A test for Lloyd's between The Marine Hotel in Ballycastle and Rathlin Island, both in County Antrim in Ulster, Ireland, was conducted on 6 July 1898 by George Kemp and Edward Edwin Glanville.^[43] A transmission across the English Channel was accomplished on 27 March 1899, from Wimereux, France to South Foreland Lighthouse, England. Marconi set up an experimental base at the Haven Hotel, Sandbanks, Poole Harbour, Dorset, where he erected a 100-foot high mast. He became friends with the van Raaltes, the owners of Brownsea Island in Poole Harbour, and his steam yacht, the Elettra, was often moored on Brownsea or at The Haven Hotel. Marconi purchased the vessel after the Great War and converted it to a seaborne laboratory from where he conducted many of his experiments. Among the Elettra's crew was Adelmo Landini, his personal radio operator, who was also an inventor.^[44]\n

In December 1898, the British lightship service authorised the establishment of wireless communication between the South Foreland lighthouse at Dover and the East Goodwin lightship, twelve miles distant. On 17 March 1899, the East Goodwin lightship sent the first wireless distress signal, a signal on behalf of the merchant vessel Elbe which had run aground on Goodwin Sands. The message was received by the radio operator of the South Foreland lighthouse, who summoned the aid of the Ramsgate lifeboat.^[45]^[46]\n

In 1899, Marconi sailed to the United States at the invitation of The New York Herald newspaper to cover the America's Cup international yacht races off Sandy Hook, New Jersey. His first demonstration was a transmission from aboard the SS Ponce, a passenger ship of the Porto Rico Line.^[47] Marconi left for England on 8 November 1899 on the American Line's SS Saint Paul, and he and his assistants installed wireless equipment aboard during the voyage. Marconi's wireless brought news of the Second Boer War, which had begun a month before their departure, to passengers at the request of \"some of the officials of the American line.\"^[48] On 15 November the SS Saint Paul became the first ocean liner to report her imminent return to Great Britain by wireless when Marconi's Royal Needles Hotel radio station contacted her 66 nautical miles off the English coast. The first Transatlantic Times, a newspaper containing wireless transmission news from the Needles Station at the Isle of Wight, was published on board the SS Saint Paul before its arrival.^[49]\n

Transatlantic transmissions

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At the turn of the 20th century, Marconi began investigating a means to signal across the Atlantic to compete with the transatlantic telegraph cables. Marconi established a wireless transmitting station at Marconi House, Rosslare Strand, County Wexford, in 1901 to act as a link between Poldhu in Cornwall, England, and Clifden in Connemara, County Galway, Ireland. He soon made the announcement that the message was received at Signal Hill in St. John's, Newfoundland (now part of Canada), on 12 December 1901, using a 500-foot (150 m) kite-supported antenna for reception \u2013 signals transmitted by the company's new high-power station at Poldhu, Cornwall. The distance between the two points was about 2,200 miles (3,500 km). It was heralded as a great scientific advance, yet there also was \u2013 and continues to be \u2013 considerable scepticism about this claim. The exact wavelength used is not known, but it is fairly reliably determined to have been in the neighbourhood of 350 metres (frequency \u2248 850 kHz). The tests took place at a time of day during which the entire transatlantic path was in daylight. It is now known (although Marconi did not know then) that this was the worst possible choice. At this medium wavelength, long-distance transmission in the daytime is not possible because of the heavy absorption of the skywave in the ionosphere. It was not a blind test; Marconi knew in advance to listen for a repetitive signal of three clicks, signifying the Morse code letter S. The clicks were reported to have been heard faintly and sporadically. There was no independent confirmation of the reported reception, and the transmissions were difficult to distinguish from atmospheric noise. A detailed technical review of Marconi's early transatlantic work appears in John S. Belrose's work of 1995. The Poldhu transmitter was a two-stage circuit.^[51]^[52]\n

Feeling challenged by sceptics, Marconi prepared a better-organised and documented test. In February 1902, the SS Philadelphia sailed west from Great Britain with Marconi aboard, carefully recording signals sent daily from the Poldhu station. The test results produced coherer-tape reception up to 1,550 miles (2,490 km), and audio reception up to 2,100 miles (3,400 km). The maximum distances were achieved at night, and these tests were the first to show that radio signals for medium wave and longwave transmissions travel much farther at night than during the day. During the daytime, signals had been received up to only about 700 miles (1,100 km), 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 (miles), despite some scientists' belief that they were limited essentially to line-of-sight distances.\n

On 17 December 1902, a transmission from the Marconi station in Glace Bay, Nova Scotia, Canada, became the world's first radio message to cross the Atlantic from North America. In 1901, Marconi built a station near South Wellfleet, Massachusetts, that sent a message of greetings on 18 January 1903 from United States President Theodore Roosevelt to King Edward VII of the United Kingdom. However, consistent transatlantic signalling was difficult to establish.^[53]\n

Marconi began to build high-powered stations on both sides of the Atlantic to communicate with ships at sea, in competition with other inventors. In 1904, he established a commercial service to transmit nightly news summaries to subscribing ships, which could incorporate them into their on-board newspapers. A regular transatlantic radio-telegraph service was finally begun on 17 October 1907^[54]^[55] between Clifden, Ireland, and Glace Bay, but even after this the company struggled for many years to provide reliable communication to others.\n

Titanic

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The role played by Marconi Co. wireless in maritime rescues raised public awareness of the value of radio and brought fame to Marconi, particularly the sinking of RMS Titanic on 15 April 1912 and RMS Lusitania on 7 May 1915.^[56]\n

RMS Titanic radio operators Jack Phillips and Harold Bride were not employed by the White Star Line but by the Marconi International Marine Communication Company. After the sinking of the ocean liner, survivors were rescued by the RMS Carpathia of the Cunard Line.^[57] Carpathia took a total of 17 minutes to both receive and decode the SOS signal sent by Titanic. There was a distance of 58 miles between the two ships.^[58] When Carpathia docked in New York, Marconi went aboard with a reporter from The New York Times to talk with Bride, the surviving operator.^[57] After this incident, Marconi gained popularity and became more recognised for his contributions to the field of radio and wireless technology.^[59]\n

On 18 June 1912, Marconi gave evidence to the Court of Inquiry into the loss of Titanic regarding the marine telegraphy's functions and the procedures for emergencies at sea.^[60] Britain's Postmaster-General summed up, referring to the Titanic disaster: \"Those who have been saved, have been saved through one man, Mr. Marconi ... and his marvellous invention.\"^[61] Marconi was offered free passage on Titanic before she sank, but had taken Lusitania three days earlier. As his daughter Degna later explained, he had paperwork to do and preferred the public stenographer aboard that vessel.^[62]\n

Continuing work

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Over the years, the Marconi companies gained a reputation for being technically conservative, in particular by continuing to use inefficient spark-transmitter technology, which could be used only for radio-telegraph operations, long after it was apparent that the future of radio communication lay with continuous-wave transmissions which were more efficient and could be used for audio transmissions. Somewhat belatedly, the company did begin significant work with continuous-wave equipment beginning in 1915, after the introduction of the oscillating vacuum tube (valve). The New Street Works factory in Chelmsford was the location for the first entertainment radio broadcasts in the United Kingdom in 1920, employing a vacuum tube transmitter and featuring Dame Nellie Melba. In 1922, regular entertainment broadcasts commenced from the Marconi Research Centre at Great Baddow, forming the prelude to the BBC, and he spoke of the close association of aviation and wireless telephony in that same year at a private gathering with Florence Tyzack Parbury, and even spoke of interplanetary wireless communication. In 1924, the Marconi Company co-established the Unione Radiofonica Italiana (now RAI).^[63]\n

Later years

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\n
Have I done the world good, or have I added a menace?^[64]\n
\n

In 1914, Marconi was made a Senator in the Senate of the Kingdom of Italy and appointed Honorary Knight Grand Cross of the Royal Victorian Order in the UK. During World War I, Italy joined the Allied side of the conflict, and Marconi was placed in charge of the Italian military's radio service. He attained the rank of lieutenant in the Italian Royal Army and of commander in the Regia Marina. In 1929, he was made a marquess by King Victor Emmanuel III.^[65]\n

While helping to develop microwave technology, the Marchese Marconi suffered nine heart attacks in the span of three years preceding his death.^[66] Marconi died in Rome on 20 July 1937 at age 63, following the ninth, fatal, heart attack, and Italy held a state funeral for him. As a tribute, shops on the street where he lived were \"Closed for national mourning\".^[67] In addition, at 6 pm the next day, the time designated for the funeral, transmitters around the world observed two minutes of silence in his honour.^[68] The British Post Office also sent a message requesting that all broadcasting ships honour Marconi with two minutes of broadcasting silence.^[67] His remains are housed in the Mausoleum of Guglielmo Marconi in the grounds of Villa Griffone at Sasso Marconi, Emilia-Romagna, which assumed that name in his honour in 1938.^[69]\n

In 1943, Marconi's elegant sailing yacht, the Elettra, was commandeered and refitted as a warship by the German Navy. She was sunk by the RAF on 22 January 1944. After the war, the Italian Government tried to retrieve the wreckage, to rebuild the boat, and the wreckage was removed to Italy. Eventually, the idea was abandoned, and the wreckage was cut into pieces which were distributed amongst Italian museums.\n

In 1943, the Supreme Court of the United States handed down a decision on Marconi's radio patents restoring some of the prior patents of Oliver Lodge, John Stone Stone, and Nikola Tesla.^[70]^[71] The decision was not about Marconi's original radio patents^[72] and the court declared that their decision had no bearing on Marconi's claim as the first to achieve radio transmission, just that since Marconi's claim to certain patents was questionable, he could not claim infringement on those same patents.^[73] There are claims the high court was trying to nullify a World War I claim against the United States government by the Marconi Company via simply restoring the non-Marconi prior patent.^[70]\n

Personal life

[edit]

Marconi was a friend of Charles van Raalte and his wife Florence, the owners of Brownsea Island; and of Margherita, their daughter, and in 1904 he met her Irish friend, The Hon. Beatrice O'Brien (1882\u20131976), a daughter of The 14th Baron Inchiquin. On 16 March 1905, Beatrice O'Brien and Marconi were married, and spent their honeymoon on Brownsea Island.^[74] They had three daughters, Lucia (born and died 1906), Degna (1908\u20131998), and Gioia (1916\u20131996), and a son, Giulio, 2nd Marquess Marconi (1910\u20131971). In 1913, the Marconi family returned to Italy and became part of Rome society. Beatrice served as a lady-in-waiting to Queen Elena. At Marconi's request, his marriage to Beatrice was annulled on 27 April 1927, so he could remarry.^[75] Marconi and Beatrice had divorced on 12 February 1924 in the free city of Fiume (Rijeka).^[12]\n

Marconi went on to marry Maria Cristina Bezzi-Scali^[it] (2 April 1900 \u2013 15 July 1994), the only daughter of Francesco, Count Bezzi-Scali. To do this he had to be confirmed in the Catholic faith and became a devout member of the Church.^[76] He was baptised Catholic but had been brought up as a member of the Anglican Church. On 12 June 1927, Marconi married Maria Cristina in a civil service, with a religious ceremony performed on 15 June. Marconi was 53 years old and Maria Cristina was 26. They had one daughter, Maria Elettra Elena Anna (born 1930), who married Prince Carlo Giovannelli (1942\u20132016) in 1966; they later divorced. For unexplained reasons, Marconi left his entire fortune to his second wife and their only child, and nothing to the children of his first marriage.^[77]\n

Marconi wanted to personally introduce in 1931 the first radio broadcast of a Pope, Pius XI, and announced at the microphone: \"With the help of God, who places so many mysterious forces of nature at man's disposal, I have been able to prepare this instrument which will give to the faithful of the entire world the joy of listening to the voice of the Holy Father\".^[78]\n

Fascism

[edit]

Marconi joined the National Fascist Party in 1923.^[79] In 1930, Italian dictator Benito Mussolini appointed him President of the Royal Academy of Italy, which made Marconi a member of the Fascist Grand Council. Marconi was an apologist for fascist ideology and actions such as the Italian invasion of Ethiopia in the Second Italo-Abyssinian War.^[80]\n

In his lecture he stated: \"I reclaim the honour of being the first fascist in the field of radiotelegraphy, the first who acknowledged the utility of joining the electric rays in a bundle, as Mussolini was the first in the political field who acknowledged the necessity of merging all the healthy energies of the country into a bundle, for the greater greatness of Italy\".^[81] Not one Jew was allowed to join the Royal Academy during Marconi's tenure as president from 1930, three years before Adolf Hitler took power in Germany and eight years before Benito Mussolini's race laws brought his regime's antisemitism into the open.^[82]\n

Legacy and honours

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Orders and decorations

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Italian

Knight of the Order of Merit for Labour (26 October 1902)^[85]
Knight of the Civil Order of Savoy (1 June 1905)^[85]
Grand Cordon of the Order of the Crown of Italy (7 April 1913; Grand Officer: 30 October 1902; Officer: 6 January 1898)^[85]
Grand Cordon of the Order of Saints Maurice and Lazarus (14 January 1932; Grand Officer: 30 May 1912; Commander: 12 January 1902)^[85]^[86]^[65]
Marquis of Marconi (17 July 1929)^[85]

Others

Grand Cross of the Order of Saint Anna of the Russia Empire (1902)^[87]^[65]
Honorary Knight Grand Cross of the Royal Victorian Order of the United Kingdom (GCVO, 1914)^[65]
Grand Cross of the Civil Order of Alfonso XII of Spain^[85]
Grand Cordon of the Order of the Rising Sun of Japan (1933)^[88]

Honours and awards

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In 1901, he was elected as a member of the American Philosophical Society.^[89]
In 1903, Marconi also received the freedom of the City of Rome.^[65]
In 1909, Marconi shared the Nobel Prize in Physics with Karl Ferdinand Braun for their \"contributions to the development of wireless telegraphy\" (radio communications).^[7]
In 1914, Marconi was named senator by the king of Italy Vittorio Emanuele III^[65]
In 1918, he was awarded the Franklin Institute's Franklin Medal.^[90]
In 1920, he was awarded the IRE Medal of Honor, now the IEEE Medal of Honor.^[91]
In 1931, he was awarded the John Scott Medal by the Franklin Institute and the City Council of Philadelphia.^[92]
In 1934, he was awarded the Wilhelm Exner Medal.^[93]
In 1974, Italy marked the birth centennial of Marconi with a circulating commemorative Lire 100 coin.^[94]
In 1975, Marconi was inducted into the National Inventors Hall of Fame.^[95]
In 1978, Marconi was inducted into the NAB Broadcasting Hall of Fame.^[96]
In 1988, the Radio Hall of Fame (Museum of Broadcast Communications, Chicago) inducted Marconi as a Pioneer (soon after the inception of its awards).^[97]
In 1990, the Bank of Italy issued a Lire 2,000 banknote featuring his portrait on the front and on the back his accomplishments.^[98]
In 2001, Great Britain released a commemorative \u00a32 coin celebrating the 100th anniversary of Marconi's first wireless communication.^[99]
Marconi's early experiments in wireless telegraphy were the subject of two IEEE Milestones; one in Switzerland in 2003^[100] and most recently in Italy in 2011.^[101]
In 2009, Italy issued a commemorative silver 10 Euro coin honouring the centennial of Marconi's Nobel Prize.^[102]
In 2009, he was inducted into the New Jersey Hall of Fame.^[103]
The Dutch radio academy bestows the Marconi Awards [nl] annually for outstanding radio programmes, presenters and stations.^[104]
The National Association of Broadcasters (US) bestows the annual NAB Marconi Radio Awards also for outstanding radio programmes and stations.^[105]

Tributes

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A funerary monument to the effigy of Marconi can be seen in the Basilica of Santa Croce, Florence, but his remains are in the Mausoleum of Guglielmo Marconi in Sasso Marconi, Italy. His former villa, adjacent to the mausoleum is the Marconi Museum (Italy) with much of his equipment.
A Guglielmo Marconi sculpture by Attilio Piccirilli stands in Washington, D.C.^[106]
A granite obelisk stands on the cliff top near the site of Marconi's Marconi's Poldhu Wireless Station in Cornwall, commemorating the first transatlantic transmission.
Marconi Plaza Park, an urban park square named after the inventor in 1937, is located Philadelphia, Pennsylvania at Oregon Ave and South Broad Street. It includes a later 1975 bronze statue of Marconi erected on the east side.

Places and organisations named after Marconi include:\n

Outer space

The asteroid 1332 Marconia is named in his honour. A large crater on the far side of the Moon is also named after him.\n

Italy

Bologna Guglielmo Marconi Airport (IATA: BLQ \u2013 ICAO: LIPE), of Bologna, is named after Marconi, its native son.
Guglielmo Marconi University, a private, non-profit university in Rome.
Ponte Guglielmo Marconi, bridge that connects Piazza Augusto Righi with Piazza Tommaso Edison, in Rome.

Australia

Australian football (soccer) and social club Marconi Stallions.

Canada

The Marconi's Wireless Telegraph Company of Canada (now CMC Electronics and Ultra Electronics), of Montreal, Quebec, Canada, was created in 1903 by Guglielmo Marconi.^[107] In 1925 the company was renamed to the 'Canadian Marconi Company', which was acquired by English Electric in 1953.^[107] The company name changed again to CMC Electronics Inc. (French: CMC \u00c9lectronique) in 2001. In 2002, the company's historical radio business was sold to Ultra Electronics to become Ultra Electronics TCS Inc., now doing business as Ultra Communications. Both CMC Electronics and Ultra Communications are still located in Montreal.
The Marconi National Historic Sites of Canada was created by Parks Canada as a tribute to Marconi's vision in the development of radio telecommunications. The first official wireless message was sent from this location by the Atlantic Ocean to England in 1902. The museum site is located in Glace Bay, Nova Scotia, at Table Head on Timmerman Street.

United States

Marconi Conference Center and State Historic Park, site of the transoceanic Marshall Receiving Station, Marshall.
Marconi-RCA Bolinas Transmitting Station in Bolinas, California
Station KPH, Marconi Wireless Telegraph Company of America in Inverness, California
Marconi Wireless Telegraphy Station on O\u02bbahu's North Shore, briefly the world's most powerful telegraph station.^[108]
Marconi Beach in Wellfleet, Massachusetts, part of the Cape Cod National Seashore, located near the site of his first transatlantic wireless signal from the United States to Britain. There are still remnants of the wireless tower at this beach and at Forest Road Beach in Chatham, Massachusetts.^[109]
New Brunswick Marconi Station, now the Guglielmo Marconi Memorial Plaza in Somerset, NJ. President Woodrow Wilson's Fourteen Points speech was transmitted from the site in 1918.
Belmar Marconi Station, now the InfoAge Science History Center in Wall Township, NJ.

The Marconi Wireless Company of America, the world's first radio company, was incorporated in Roselle Park New Jersey, on West Westfield Avenue, on 22 November 1899.\n

La Scuola d'Italia Guglielmo Marconi on New York City's Upper East Side.
Marconi Plaza, Philadelphia, Pennsylvania. Roman terrace-styled plaza originally designed by the architects Olmsted Brothers in 1914\u20131916, built as the grand entrance for the 1926 Sesquicentennial Exposition and renamed to honour Marconi.

Patents

[edit]

United Kingdom

British patent No. 12,039 (1897) \"Improvements in Transmitting Electrical impulses and Signals, and in Apparatus therefor\". Date of Application 2 June 1896; Complete Specification Left, 2 March 1897; Accepted, 2 July 1897 (later claimed by Oliver Lodge to contain his own ideas which he failed to patent).
British patent No. 7,777 (1900) \"Improvements in Apparatus for Wireless Telegraphy\". Date of Application 26 April 1900; Complete Specification Left, 25 February 1901; Accepted, 13 April 1901.
British patent No. 10245 (1902)
British patent No. 5113 (1904) \"Improvements in Transmitters suitable for Wireless Telegraphy\". Date of Application 1 March 1904; Complete Specification Left, 30 November 1904; Accepted, 19 January August 1905.
British patent No. 21640 (1904) \"Improvements in Apparatus for Wireless Telegraphy\". Date of Application 8 October 1904; Complete Specification Left, 6 July 1905; Accepted, 10 August 1905.
British patent No. 14788 (1904) \"Improvements in or relating to Wireless Telegraphy\". Date of Application 18 July 1905; Complete Specification Left, 23 January 1906; Accepted, 10 May 1906.

United States

U.S. patent 586,193 \"Transmitting electrical signals\", (using Ruhmkorff coil and Morse code key) filed December 1896, patented July 1897
U.S. patent 624,516 \"Apparatus employed in wireless telegraphy\".
U.S. patent 627,650 \"Apparatus employed in wireless telegraphy\".
U.S. patent 647,007 \"Apparatus employed in wireless telegraphy\".
U.S. patent 647,008 \"Apparatus employed in wireless telegraphy\".
U.S. patent 647,009 \"Apparatus employed in wireless telegraphy\".
U.S. patent 650,109 \"Apparatus employed in wireless telegraphy\".
U.S. patent 650,110 \"Apparatus employed in wireless telegraphy\".
U.S. patent 668,315 \"Receiver for electrical oscillations\".
U.S. patent 676,332 \"Apparatus for wireless telegraphy\" (later practical version of system)
U.S. patent 757,559 \"Wireless telegraphy system\". Filed 19 November 1901; Issued 19 April 1904.
U.S. patent 760,463 \"Wireless signaling system\". Filed 10 September 1903; Issued 24 May 1904.
U.S. patent 763,772 \"Apparatus for wireless telegraphy\" (Four tuned system; this innovation was predated by N. Tesla, O. Lodge, and J. S. Stone)
U.S. patent 786,132 \"Wireless telegraphy\". Filed 13 October 1903
U.S. patent 792,528 \"Wireless telegraphy\". Filed 13 October 1903; Issued 13 June 1905.
U.S. patent 884,986 \"Wireless telegraphy\". Filed 28 November 1902; Issued 14 April 1908.
U.S. patent 884,987 \"Wireless telegraphy\".
U.S. patent 884,988 \"Detecting electrical oscillations\". Filed 2 February 1903; Issued 14 April 1908.
U.S. patent 884,989 \"Wireless telegraphy\". Filed 2 February 1903; Issued 14 April 1908.
U.S. patent 924,560 \"Wireless signaling system\". Filed 9 August 1906; Issued 8 June 1909.
U.S. patent 935,381 \"Transmitting apparatus for wireless telegraphy\". Filed 10 April 1908; Issued 28 September 1909.
U.S. patent 935,382 \"Apparatus for wireless telegraphy\".
U.S. patent 935,383 \"Apparatus for wireless telegraphy\". Filed 10 April 1908; Issued 28 September 1909.
U.S. patent 954,640 \"Apparatus for wireless telegraphy\". Filed 31 March 1909; Issued 12 April 1910.
U.S. patent 997,308 \"Transmitting apparatus for wireless telegraphy\". Filed 15 July 1910; Issued 11 July 1911.
U.S. patent 1,102,990 \"Means for generating alternating electric currents\". Filed 27 January 1914; Issued 7 July 1914.
U.S. patent 1,226,099 \"Transmitting apparatus for use in wireless telegraphy and telephony\". Filed 31 December 1913; Issued 15 May 1917.
U.S. patent 1,271,190 \"Wireless telegraph transmitter\".
U.S. patent 1,377,722 \"Electric accumulator\". Filed 9 March 1918
U.S. patent 1,148,521 \"Transmitter for wireless telegraphy\". Filed 20 July 1908; Issued 3 August 1915.
U.S. patent 1,981,058 \"Thermionic valve\". Filed 14 October 1926; Issued 20 November 1934.
U.S. patent RE11913 \"Transmitting electrical impulses and signals and in apparatus, there-for\". Filed 1 April 1901; Issued 4 June 1901.

References

[edit]

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Sources

[edit]

Hong, Sungook (2001). Wireless: From Marconi's Black-Box to the Audion (PDF). Cambridge, Mass.: MIT Press. ISBN 0-262-08298-5. Archived (PDF) from the original on 19 August 2014.

External links

[edit]

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Wikiquote has quotations related to Guglielmo Marconi.

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Wikimedia Commons has media related to Guglielmo Marconi.

\"Marconi, Guglielmo\" . Encyclop\u00e6dia Britannica (12th ed.). 1922.
Guglielmo Marconi on Nobelprize.org $\"Edit$ including the Nobel Lecture, 11 December 1909 Wireless Telegraphic Communication
Marconi il 5 marzo 1896, presenta a Londra la prima richiesta provvisoria di brevetto, col numero 5028 e col titolo \"Miglioramenti nella telegrafia e relativi apparati\" Archived 16 April 2007 at the Wayback Machine (Great Britain and France between 1896 and 1924)
List of British and French patents (1896\u20131924) Archived 27 September 2007 at the Wayback Machine The first patent application number 5028 of 5 March 1896 (Provisional deprivation)
University of Oxford Introduction to the Online Catalogue of the Marconi Collection
University of Oxford Online Catalogue of the Marconi Archives
Guglielmo Marconi Foundation, Pontecchio Marconi, Bologna, Italy
Galileo Legacy Foundation: pictures of the Dedication of the Guglielmo Marconi Square, Johnston RI United States Dedication Photos
History of Marconi House, Marconi House, Strand / Aldwych, London.
MarconiCalling \u2013 The Life, Science and Achievements of Guglielmo Marconi, part of the Marconi Collection at the University of Oxford
Canadian Heritage Minute featuring Marconi
Guglielmo Marconi documentary Archived 9 July 2019 at the Wayback Machine, narrated by Walter Cronkite
Review of Signor Marconi's Magic Box Archived 5 November 2005 at the Wayback Machine
Newspaper clippings about Guglielmo Marconi in the 20th Century Press Archives of the ZBW
Robert (Bob) White, Guglielmo Marconi \u2013 Aerial Assistance with a Kite. Bridging the Atlantic By Wireless Signal \u2013 12 December 1901. Kiting, The Journal of the American Kitefliers Association. Vol. 23, Iss. 5 \u2013 Winter 2002. November 2001
Faking the Waves, 1901
Marconi and \"wireless telegraphy\" using kites
Sparks Telegraph Key Review An exhaustive listing of wireless telegraph key manufacturers including photos of most Marconi keys
United States Senate Inquiry into the Titanic disaster \u2013 Testimony of Guglielmo Marconi
PBS: Marconi and Tesla: Who invented radio?
United States Supreme Court, Marconi Wireless Telegraph co. of America v. United States. 320 U.S. 1. Nos. 369, 373. Argued 9\u201312 April 1943. Decided 21 June 1943.
21st Century Books: Priority in the Invention of Radio \u2013 Tesla vs. Marconi
Information about Marconi and his yacht Elettra
I diari di laboratorio di Guglielmo Marconi Archived 25 February 2007 at the Wayback Machine (The diaries of laboratory Guglielmo Marconi.)
Comitato Guglielmo Marconi International, Bologna, Italy (Marconi's voice)
August 1914 photo article on Marconi Belmar station in Wall, NJ, InfoAge. (See also, Marconi Period of Significance Historic Buildings.)
Marconi, Guglielmo: Statue north of Meridian Hill Park in Washington Archived 3 August 2016 at the Wayback Machine, D.C. by Attilio Piccirilli
Guglielmo Marconi, 2000 Italian Lire (1990) Archived 18 April 2009 at the Wayback Machine

\n\n\n\n\n\n\n\n\n\n

Academic offices\n
Preceded by Jan Smuts \n	Rector of the University of St Andrews 1934\u20131937\n	Succeeded by Robert MacGregor Mitchell \n

v t e Laureates of the Nobel Prize in Physics
1901\u20131925	\n 1901: R\u00f6ntgen \n 1902: Lorentz / Zeeman \n 1903: Becquerel / P. Curie / M. Curie \n 1904: Rayleigh \n 1905: Lenard \n 1906: J. J. Thomson \n 1907: Michelson \n 1908: Lippmann \n 1909: Marconi / Braun \n 1910: Van der Waals \n 1911: Wien \n 1912: Dal\u00e9n \n 1913: Kamerlingh Onnes \n 1914: Laue \n 1915: W. L. Bragg / W. H. Bragg \n 1916 \n 1917: Barkla \n 1918: Planck \n 1919: Stark \n 1920: Guillaume \n 1921: Einstein \n 1922: N. Bohr \n 1923: Millikan \n 1924: M. Siegbahn \n 1925: Franck / Hertz \n	$\"\"$
1926\u20131950	\n 1926: Perrin \n 1927: Compton / C. Wilson \n 1928: O. Richardson \n 1929: De Broglie \n 1930: Raman \n 1931 \n 1932: Heisenberg \n 1933: Schr\u00f6dinger / Dirac \n 1934 \n 1935: Chadwick \n 1936: Hess / C. D. Anderson \n 1937: Davisson / G. P. Thomson \n 1938: Fermi \n 1939: Lawrence \n 1940 \n 1941 \n 1942 \n 1943: Stern \n 1944: Rabi \n 1945: Pauli \n 1946: Bridgman \n 1947: Appleton \n 1948: Blackett \n 1949: Yukawa \n 1950: Powell \n
1951\u20131975	\n 1951: Cockcroft / Walton \n 1952: Bloch / Purcell \n 1953: Zernike \n 1954: Born / Bothe \n 1955: Lamb / Kusch \n 1956: Shockley / Bardeen / Brattain \n 1957: C. N. Yang / T. D. Lee \n 1958: Cherenkov / Frank / Tamm \n 1959: Segr\u00e8 / Chamberlain \n 1960: Glaser \n 1961: Hofstadter / M\u00f6ssbauer \n 1962: Landau \n 1963: Wigner / Goeppert Mayer / Jensen \n 1964: Townes / Basov / Prokhorov \n 1965: Tomonaga / Schwinger / Feynman \n 1966: Kastler \n 1967: Bethe \n 1968: Alvarez \n 1969: Gell-Mann \n 1970: Alfv\u00e9n / N\u00e9el \n 1971: Gabor \n 1972: Bardeen / Cooper / Schrieffer \n 1973: Esaki / Giaever / Josephson \n 1974: Ryle / Hewish \n 1975: A. Bohr / Mottelson / Rainwater \n
1976\u20132000	\n 1976: Richter / Ting \n 1977: P. W. Anderson / Mott / Van Vleck \n 1978: Kapitsa / Penzias / R. Wilson \n 1979: Glashow / Salam / Weinberg \n 1980: Cronin / Fitch \n 1981: Bloembergen / Schawlow / K. Siegbahn \n 1982: K. Wilson \n 1983: Chandrasekhar / Fowler \n 1984: Rubbia / Van der Meer \n 1985: von Klitzing \n 1986: Ruska / Binnig / Rohrer \n 1987: Bednorz / M\u00fcller \n 1988: Lederman / Schwartz / Steinberger \n 1989: Ramsey / Dehmelt / Paul \n 1990: Friedman / Kendall / R. Taylor \n 1991: de Gennes \n 1992: Charpak \n 1993: Hulse / J. Taylor \n 1994: Brockhouse / Shull \n 1995: Perl / Reines \n 1996: D. Lee / Osheroff / R. Richardson \n 1997: Chu / Cohen-Tannoudji / Phillips \n 1998: Laughlin / St\u00f6rmer / Tsui \n 1999: 't Hooft / Veltman \n 2000: Alferov / Kroemer / Kilby \n
2001\u2013 present	\n 2001: Cornell / Ketterle / Wieman \n 2002: Davis / Koshiba / Giacconi \n 2003: Abrikosov / Ginzburg / Leggett \n 2004: Gross / Politzer / Wilczek \n 2005: Glauber / Hall / H\u00e4nsch \n 2006: Mather / Smoot \n 2007: Fert / Gr\u00fcnberg \n 2008: Nambu / Kobayashi / Maskawa \n 2009: Kao / Boyle / Smith \n 2010: Geim / Novoselov \n 2011: Perlmutter / Schmidt / Riess \n 2012: Wineland / Haroche \n 2013: Englert / Higgs \n 2014: Akasaki / Amano / Nakamura \n 2015: Kajita / McDonald \n 2016: Thouless / Haldane / Kosterlitz \n 2017: Weiss / Barish / Thorne \n 2018: Ashkin / Mourou / Strickland \n 2019: Peebles / Mayor / Queloz \n 2020: Penrose / Genzel / Ghez \n 2021: Parisi / Hasselmann / Manabe \n 2022: Aspect / Clauser / Zeilinger \n 2023: Agostini / Krausz / L'Huillier \n 2024: Hopfield / Hinton \n

v t e 1909 Nobel Prize laureates
Chemistry	\n Wilhelm Ostwald (Germany) \n
Literature (1909)	\n Selma Lagerl\u00f6f (Sweden) \n
Peace	\n Auguste Beernaert (Belgium) \n Paul Henri Balluet d'Estournelles de Constant (France) \n
Physics	\n Karl Ferdinand Braun (Germany) \n Guglielmo Marconi (Italy) \n
Physiology or Medicine	\n Emil Theodor Kocher (Switzerland) \n
\n Nobel Prize recipients \n 1904 \n 1905 \n 1906 \n 1907 \n 1908 \n 1909 \n 1910 \n 1911 \n 1912 \n 1913 \n 1914 \n

v t e IEEE Medal of Honor
1917\u20131925	\n Edwin H. Armstrong (1917) \n Ernst Alexanderson (1919) \n Guglielmo Marconi (1920) \n Reginald Fessenden (1921) \n Lee de Forest (1922) \n John Stone Stone (1923) \n Mihajlo Pupin (1924) \n

v t e John Fritz Medal
1902\u20131924	\n 1902 : John Fritz \n 1903 : No award \n 1904 : No award \n 1905 : Lord Kelvin \n 1906 : George Westinghouse \n 1907 : Alexander Graham Bell \n 1908 : Thomas Alva Edison \n 1909 : Charles Talbot Porter \n 1910 : Alfred Noble \n 1911 : Sir William Henry White \n 1912 : Robert Woolston Hunt \n 1913 : No award \n 1914 : John Edson Sweet \n 1915 : James Douglas \n 1916 : Elihu Thomson \n 1917 : Henry Marion Howe \n 1918 : J. Waldo Smith \n 1919 : Gen. George W. Goethals \n 1920 : Orville Wright \n 1921 : Sir Robert Hadfield \n 1922 : Charles P. E. Schneider \n 1923 : Guglielmo Marconi \n 1924 : Ambrose Swasey \n
1925\u20131949	\n 1925 : John Frank Stevens \n 1926 : Edward Dean Adams \n 1927 : Elmer Ambrose Sperry \n 1928 : John Joseph Carty \n 1929 : Herbert Clark Hoover \n 1930 : Ralph Modjeski \n 1931 : David Watson Taylor \n 1932 : Mihajlo Idvorski Pupin \n 1933 : Daniel Cowan Jackling \n 1934 : John Ripley Freeman (posthumous) \n 1935 : Frank Julian Sprague (posthumous) \n 1936 : William Frederick Durand \n 1937 : Arthur Newell Talbot \n 1938 : Paul Dyer Merica \n 1939 : Frank Baldwin Jewett \n 1940 : Clarence Floyd Hirshfeld (posthumous) \n 1941 : Ralph Budd \n 1942 : Everette Lee DeGolyer \n 1943 : Willis Rodney Whitney \n 1944 : Charles F. Kettering \n 1945 : John Lucian Savage \n 1946 : Zay Jeffries \n 1947 : Lewis Warrington Chubb \n 1948 : Theodore von K\u00e1rm\u00e1n \n 1949 : Charles Metcalf Allen \n
1950\u20131974	\n 1950 : Walter H. Aldridge \n 1951 : Vannevar Bush \n 1952 : Ervin George Bailey \n 1953 : Benjamin F. Fairless \n 1954 : William Embry Wrather \n 1955 : Harry Alonzo Winne \n 1956 : Philip Sporn \n 1957 : Ben Moreell \n 1958 : John R. Suman \n 1959 : Mervin J. Kelly \n 1960 : Gwilym A. Price \n 1961 : Stephen D. Bechtel \n 1962 : Crawford H. Greenewalt \n 1963 : Hugh L. Dryden \n 1964 : Lucius D. Clay \n 1965 : Frederick Kappel \n 1966 : Warren K. Lewis \n 1967 : Walker L. Cisler \n 1968 : Igor Ivan Sikorsky \n 1969 : Michael Lawrence Haider \n 1970 : Glenn B. Warren \n 1971 : Patrick E. Haggerty \n 1972 : William Webster \n 1973 : Lyman Wilber \n 1974 : H. I. Romnes \n
1975\u20131999	\n 1975 : Manson Benedict \n 1976 : Thomas O. Paine \n 1977 : George R. Brown \n 1978 : Robert G. Heitz \n 1979 : Nathan M. Newmark \n 1980 : T. Louis Austin, Jr. \n 1981 : Ian MacGregor \n 1982 : David Packard \n 1983 : Claude Elwood Shannon \n 1984 : Kenneth A. Roe \n 1985 : Daniel C. Drucker \n 1986 : Simon Ramo \n 1987 : Ralph Landau \n 1988 : Ralph B. Peck \n 1989 : Robert N. Noyce \n 1990 : Gordon A. Cain \n 1991 : Hunter Rouse \n 1992 : Serge Gratch \n 1993 : Gordon Moore \n 1994 : Hoyt C. Hottel \n 1995 : Lynn S. Beedle \n 1996 : George N. Hatsopoulos \n 1997 : Arthur E. Humphrey \n 1998 : Ivan A. Getting \n 1999 : George H. Heilmeier \n
2000\u2013	\n 2000 : John W. Fisher \n 2001 : Paul C. W. Chu \n 2002 : Daniel Goldin \n 2003 : Robert S. Langer \n 2004 : John A. Swanson \n 2005 : George Tamaro \n 2006 : No award \n 2007 : Gavriel Salvendy \n 2008 : Kristina M. Johnson \n 2009 : Yvonne Claeys Brill \n 2010 : Gerald J. Posakony \n 2011 : Andrew Viterbi \n 2012 : Leslie E. Robertson \n 2013 : Gregory Stephanopoulos \n 2014 : Julia Weertman \n 2015 : Jon D. Magnusson \n 2017 : Frank Kreith \n 2018 : Anne S. Kiremidjian \n 2019 : No award \n 2020 : No award \n 2021 : Elon Musk \n 2022 : No award \n 2023 : Asad M. Madni \n

v t e Telecommunications
History	\n Beacon \n Broadcasting \n Cable protection system \n Cable TV \n Communications satellite \n Computer network \n Data compression\n audio \n DCT \n image \n video \n Digital media\n Internet video \n online video platform \n social media \n streaming \n Drums \n Edholm's law \n Electrical telegraph \n Fax \n Heliographs \n Hydraulic telegraph \n Information Age \n Information revolution \n Internet \n Mass media \n Mobile phone\n Smartphone \n Optical telecommunication \n Optical telegraphy \n Pager \n Photophone \n Prepaid mobile phone \n Radio \n Radiotelephone \n Satellite communications \n Semaphore\n Phryctoria \n Semiconductor\n device \n MOSFET \n transistor \n Smoke signals \n Telecommunications history \n Telautograph \n Telegraphy \n Teleprinter (teletype) \n Telephone \n The Telephone Cases \n Television\n digital \n streaming \n Undersea telegraph line \n Videotelephony \n Whistled language \n Wireless revolution \n
Pioneers	\n Nasir Ahmed \n Edwin Howard Armstrong \n Mohamed M. Atalla \n John Logie Baird \n Paul Baran \n John Bardeen \n Alexander Graham Bell \n Emile Berliner \n Tim Berners-Lee \n Francis Blake \n Jagadish Chandra Bose \n Charles Bourseul \n Walter Houser Brattain \n Vint Cerf \n Claude Chappe \n Yogen Dalal \n Donald Davies \n Daniel Davis Jr. \n Amos Dolbear \n Thomas Edison \n Philo Farnsworth \n Reginald Fessenden \n Lee de Forest \n Elisha Gray \n Oliver Heaviside \n Robert Hooke \n Erna Schneider Hoover \n Harold Hopkins \n Gardiner Greene Hubbard \n Bob Kahn \n Dawon Kahng \n Charles K. Kao \n Narinder Singh Kapany \n Hedy Lamarr \n Roberto Landell \n Innocenzo Manzetti \n Guglielmo Marconi \n Robert Metcalfe \n Antonio Meucci \n Samuel Morse \n Jun-ichi Nishizawa \n Charles Grafton Page \n Radia Perlman \n Alexander Stepanovich Popov \n Tivadar Pusk\u00e1s \n Johann Philipp Reis \n Claude Shannon \n Almon Brown Strowger \n Henry Sutton \n Charles Sumner Tainter \n Nikola Tesla \n Camille Tissot \n Alfred Vail \n Thomas A. Watson \n Charles Wheatstone \n Vladimir K. Zworykin \n Internet pioneers \n
Transmission media	\n Coaxial cable \n Fiber-optic communication\n optical fiber \n Free-space optical communication \n Molecular communication \n Radio waves\n wireless \n Transmission line\n telecommunication circuit \n
Network topology and switching	\n Bandwidth \n Links \n Network switching\n circuit \n packet \n Nodes\n terminal \n Telephone exchange \n
Multiplexing	\n Space-division \n Frequency-division \n Time-division \n Polarization-division \n Orbital angular-momentum \n Code-division \n
Concepts	\n Communication protocol \n Computer network \n Data transmission \n Store and forward \n Telecommunications equipment \n
Types of network	\n Cellular network \n Ethernet \n ISDN \n LAN \n Mobile \n NGN \n Public Switched Telephone \n Radio \n Television \n Telex \n UUCP \n WAN \n Wireless network \n
Notable networks	\n ARPANET \n BITNET \n CYCLADES \n FidoNet \n Internet \n Internet2 \n JANET \n NPL network \n Toasternet \n Usenet \n
Locations	\n Africa \n Americas\n North \n South \n Antarctica \n Asia \n Europe \n Oceania \n Global telecommunications regulation bodies \n
\n $\"\"$ Telecommunication portal \n $\"\"$ Category \n $\"\"$ Outline \n $\"\"$ Commons \n

v t e Rectors of the University of St Andrews
University of St Andrews	\n Sir Ralph Abercromby Anstruther, 4th Baronet \n Sir William Stirling-Maxwell, 9th Baronet \n John Stuart Mill \n James Anthony Froude \n Charles Neaves, Lord Neaves \n Arthur Penrhyn Stanley \n Roundell Palmer, 1st Earl of Selborne \n Sir Theodore Martin \n Donald Mackay, 11th Lord Reay \n Arthur Balfour \n Frederick Hamilton-Temple-Blackwood, 1st Marquess of Dufferin and Ava \n John Crichton-Stuart, 3rd Marquess of Bute \n James Stuart \n Andrew Carnegie \n John Lubbock, 1st Baron Avebury \n Archibald Primrose, 5th Earl of Rosebery \n John Hamilton-Gordon, 1st Marquess of Aberdeen and Temair \n Douglas Haig, 1st Earl Haig \n Sir J. M. Barrie \n Rudyard Kipling \n Fridtjof Nansen \n Wilfred Grenfell \n Jan Smuts \n Guglielmo Marconi \n Robert MacGregor Mitchell, Lord MacGregor Mitchell \n Sir David Munro \n Sir George Cunningham \n David Cecil, 6th Marquess of Exeter \n David Lindsay, 28th Earl of Crawford \n David Maxwell Fyfe, 1st Earl of Kilmuir \n Robert Boothby, Baron Boothby \n C. P. Snow \n Sir John Rothenstein \n Learie Constantine \n John Cleese \n Alan Coren \n Frank Muir \n Tim Brooke-Taylor \n Katharine Whitehorn \n Stanley Adams \n Nicholas Parsons \n Nicky Campbell \n Donald Findlay \n Andrew Neil \n Sir Clement Freud \n Simon Pepper \n Kevin Dunion \n Alistair Moffat \n Catherine Stihler \n Sr\u0111a Popovi\u0107 \n Leyla Hussein \n Stella Maris \n

Rectors of the University of St Andrews

University of St Andrews

Sir Ralph Abercromby Anstruther, 4th Baronet
Sir William Stirling-Maxwell, 9th Baronet
John Stuart Mill
James Anthony Froude
Charles Neaves, Lord Neaves
Arthur Penrhyn Stanley
Roundell Palmer, 1st Earl of Selborne
Sir Theodore Martin
Donald Mackay, 11th Lord Reay
Arthur Balfour
Frederick Hamilton-Temple-Blackwood, 1st Marquess of Dufferin and Ava
John Crichton-Stuart, 3rd Marquess of Bute
James Stuart
Andrew Carnegie
John Lubbock, 1st Baron Avebury
Archibald Primrose, 5th Earl of Rosebery
John Hamilton-Gordon, 1st Marquess of Aberdeen and Temair
Douglas Haig, 1st Earl Haig
Sir J. M. Barrie
Rudyard Kipling
Fridtjof Nansen
Wilfred Grenfell
Jan Smuts
Guglielmo Marconi
Robert MacGregor Mitchell, Lord MacGregor Mitchell
Sir David Munro
Sir George Cunningham
David Cecil, 6th Marquess of Exeter
David Lindsay, 28th Earl of Crawford
David Maxwell Fyfe, 1st Earl of Kilmuir
Robert Boothby, Baron Boothby
C. P. Snow
Sir John Rothenstein
Learie Constantine
John Cleese
Alan Coren
Frank Muir
Tim Brooke-Taylor
Katharine Whitehorn
Stanley Adams
Nicholas Parsons
Nicky Campbell
Donald Findlay
Andrew Neil
Sir Clement Freud
Simon Pepper
Kevin Dunion
Alistair Moffat
Catherine Stihler
Sr\u0111a Popovi\u0107
Leyla Hussein
Stella Maris

Authority control databases $\"Edit$
International	ISNI VIAF FAST 2 WorldCat
National	Germany United States France BnF data Japan Italy Australia Czech Republic Spain Netherlands Chile Greece Korea Sweden Poland 2 Vatican Israel Catalonia
Academics	CiNii Scopus zbMATH
Artists	MusicBrainz Discography of American Historical Recordings
People	Trove Italian People Ireland Deutsche Biographie DDB
Other	IdRef NARA SNAC

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Biography

Early years

Education

Radio work

Developing radio telegraphy

Transmission breakthrough

Demonstrations and achievements

Transatlantic transmissions

Titanic

Continuing work

Later years

Personal life

Fascism

Legacy and honours

Archives

Orders and decorations

Honours and awards

Tributes

Patents

See also

References

Sources

Further reading

External links

Guglielmo Marconi

What happened with Guglielmo Marconi on 15 April, 1912

15 April, 1912