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Guglielmo Marconi Net Worth
Guglielmo Marconi how much money? For this question we spent 3 hours on research (Wikipedia, Youtube, we read books in libraries, etc) to review the post.
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Total Net Worth at the moment 2024 year – is about $30,9 Million.
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Biography
Guglielmo Marconi information Birth date: April 25, 1874 Death date: 1937-07-20 Birth place: Palazzo Marescalchi, Bologna, Italy Education:University of Bologna
Height, Weight:
How tall is Guglielmo Marconi – 1,88m.
How much weight is Guglielmo Marconi – 70kg
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Biography,Early yearsMarconi was born into the Italian nobility as Guglielmo Giovanni Maria Marconi in Bologna on 25 April 1874, the second son of Giuseppe Marconi (an Italian aristocratic landowner from Porretta Terme) and his Irish/Scots wife Annie Jameson (daughter of Andrew Jameson of Daphne Castle in County Wexford, Ireland and granddaughter of John Jameson, founder of whiskey distillers Jameson & Sons). Between the ages of two and six, Marconi and his elder brother Alfonso were brought up by his mother in the English town of Bedford.[11] After returning to Italy, at age 18 University of Bologna physicist Augusto Righi, neighbour of Marconi who had done research on Heinrich Hertzs work, permitted Marconi to attend lectures at the university and use the lab and library as well.[12] Marconi received further education in Florence at the Istituto Cavallero and, later, in Livorno.[13][not in citation given] Marconi did not do well in school, according to Robert McHenry,[14] though historian Giuliano Corradi characterizes him in his Biography, as a true genius.[15] He was baptized as a Catholic but had been brought up as a member of the Anglican Church, being married into it (although this marriage was later annulled). Marconi was confirmed in the Catholic faith and became a devout member of the Church before his marriage to Maria Christina in 1927.[16]Radio workDuring his early years, Marconi had an interest in science and electricity and in the early 1890s he began working on the idea of wireless telegraphy—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 proven technically and commercially successful. A relatively new development came from Heinrich Hertz, who demonstrated beginning in 1888 that one could produce and detect electromagnetic radiation—now generally known as radio waves, at the time more commonly called Hertzian waves or aetheric waves.[citation needed]There was a great deal of interest in radio waves in the physics community, but the interest was in radio as a scientific phenomenon, not in its potential as a communication method. Physicists generally looked on radio waves as an invisible form of light, a short range phenomenon which could only travel along a line of sight path, and thus its range was limited to the visual horizon like existing forms of visual signaling, making it unsuitable for long distance communication.[17] Hertzs 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 Hertzs work by Marconis teacher, Augusto Righi. Righis article renewed Marconis interest in developing a wireless telegraphy system based on radio waves,[18] a line of inquiry that he noted other inventors did not seem to be pursuing.Developing radio telegraphyMarconis first transmitter incorporating a monopole antenna. It consisted of an elevated copper sheet (top) connected to a Righi spark gap (left) powered by an induction coil (center) with a telegraph key (right) to switch it on and off to spell out text messages in Morse code.Marconi, just twenty years old, began to conduct experiments, 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. In the summer of 1894, he built a storm alarm made up of a battery, a coherer (an early detector that changed resistance when exposed to radio waves), and an electric bell, which went off if there was lightning. Soon after he was able to make a bell ring on the other side of the room by pushing a telegraphic button on a bench.[19]One night in December 1894, Guglielmo woke his mother and invited her into his secret workshop and showed her the experiment that he had created. The next day, he also showed his work to his father, who gave his son all of the money he had in his wallet when he was certain that there were no wires, so that Guglielmo could buy more materials.[citation needed]Marconi read through the literature and picked up on the ideas of physicists who were experimenting with radio waves, but did a great deal to develop devices, such as portable transmitters and receiver systems, that could work over long distances, turning what was essentially a laboratory experiment into a useful communication system.[20] Marconi came up with a functional system with many components:[21]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 Edouard Branlys 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, andA 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 experimentation outdoors and continued to experiment on his fathers estate in Bologna. He tried different arrangements and shapes of antenna but even with improvements he was only able to transmit signals up to one-half mile, a distance Oliver Lodge had predicted in 1894 as the maximum transmission distance for radio waves.Transmission breakthroughA breakthrough came that summer 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 2 miles (3.2 km) and over hills.[22][23] 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. Marconis experimental apparatus proved to be the first engineering-complete, commercially successful radio transmission system.[24][25][26]Marconi wrote to the Ministry of Post and Telegraphs, then under the direction of the honorable Pietro Lacava, explaining his wireless telegraph machine and asking for funding. He never received a response to his letter which was eventually dismissed by the Minister who wrote to the Longara on the document, referring to the insane asylum on Via della Lungara in Rome.[27]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 England. Gardini wrote a letter of introduction to the Ambassador of Italy in London, Annibale Ferrero, explaining who Marconi was and about these extraordinary discoveries. In his response, Ambassador Ferrero advised them not to reveal the results until after they had obtained the copyrights. He also encouraged him to come to England where he believed it would be easier to find the necessary funds to convert the findings from Marconis experiment into a 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 contraptions and apparatus. The customs officer immediately contacted the Admiralty in London. While there, Marconi gained the interest and support of William Preece, the Chief Electrical Engineer of the British Post Office.The British become interestedThis section needs additional citations for verification. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed. (December 2016) (Learn how and when to remove this template message)British Post Office engineers inspect Marconis radio equipment during demonstration on Flat Holm Island, 13 May 1897. The transmitter is at center, the coherer receiver below it, the pole supporting the wire antenna is visible at top.Marconi made his first demonstration of his system for the British government in July 1896.[28] A further series of demonstrations for the British followed—by March 1897, Marconi had transmitted Morse code signals over a distance of about 6 kilometres (3.7 mi) across Salisbury Plain. On 13 May 1897, Marconi sent the worlds first ever wireless communication over open sea. The experiment, based in Wales, witnessed a message transversed over the Bristol Channel from Flat Holm Island to Lavernock Point in Penarth, a distance of 6 kilometres (3.7 mi). The message read Are you ready.[29] The transmitting equipment was almost immediately relocated to Brean Down Fort on the Somerset coast, stretching the range to 16 kilometres (9.9 mi).Plaque on the outside of BT Centre commemorates Marconis first public transmission of wireless signals.Impressed by these and other demonstrations, Preece introduced Marconis ongoing work to the general public at two important London lectures: Telegraphy without Wires, at the Toynbee Hall on 11 December 1896, and Signaling through Space without Wires, given to the Royal Institution on 4 June 1897.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 Lloyds between Ballycastle and Rathlin Island, Ireland, was conducted on 6 July 1898. The English channel was crossed on 27 March 1899, from Wimereux, France to South Foreland Lighthouse, England, and in the autumn of 1899, the first demonstrations in the United States took place, with the reporting of the Americas Cup international yacht races at New York.Marconi sailed to the United States at the invitation of the New York Herald newspaper to cover the Americas Cup races off Sandy Hook, New Jersey. The transmission was done aboard the SS Ponce, a passenger ship of the Porto Rico Line.[30] Marconi left for England on 8 November 1899 on the American Lines SS Saint Paul, and he and his assistants installed wireless equipment aboard during the voyage. On 15 November Saint Paul became the first ocean liner to report her imminent return to Great Britain by wireless when Marconis Royal Needles Hotel radio station contacted her 66 nautical miles off the English coast.Transatlantic transmissionsMarconi watching associates raising the kite (a Levitor by B.F.S. Baden-Powell[31]) used to lift the antenna at St. Johns, Newfoundland, December 1901“See if you can hear anything, Mr. Kemp![32]”Magnetic detector by Marconi used during the experimental campaign aboard a ship in summer 1902, exhibited at the Museo nazionale della scienza e della tecnologia Leonardo da Vinci of Milan.At the turn of the 20th century, Marconi began investigating the means to signal completely across the Atlantic in order to compete with the transatlantic telegraph cables. Marconi established a wireless transmitting station at Marconi House, Rosslare Strand, Co. Wexford in 1901 to act as a link between Poldhu in Cornwall, England and Clifden in Co. Galway, Ireland. He soon made the announcement that the message was received at Signal Hill in St Johns, Newfoundland (now part of Canada) on 12 December 1901, using a 500-foot (150 m) kite-supported antenna for reception—signals transmitted by the companys 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—and continues to be—considerable skepticism about this claim. The exact wavelength used is not known, but it is fairly reliably determined to have been in the neighborhood of 350 meters (frequency ?850 kHz). The tests took place at a time of day during which the entire transatlantic path was in daylight. We now know (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 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 Marconis early transatlantic work appears in John S. Belroses work of 1995.) The Poldhu transmitter was a two-stage circuit.[33][34]Marconi demonstrating apparatus he used in his first long distance radio transmissions in the 1890s. The transmitter is at right, the receiver with paper tape recorder at left.Marconi caricatured by Spy for Vanity Fair, 1905Feeling challenged by skeptics, Marconi prepared a better organized 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 in the day. During the daytime, signals had only been received up to 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, despite some scientists belief that they were essentially limited to line-of-sight distances.On 17 December 1902, a transmission from the Marconi station in Glace Bay, Nova Scotia, Canada became the worlds 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.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, a commercial service was established 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[35][36] between Clifden Ireland and Glace Bay, but even after this the company struggled for many years to provide reliable communication to others.TitanicThe role played by Marconi Co. wireless in maritime rescues raised public awareness of the value of radio and brought fame to Marconi, particularly the sinkings of the RMS Titanic on 15 April 1912 and the RMS Lusitania on 7 May 1915.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 on 15 April 1912, survivors were rescued by the RMS Carpathia of the Cunard Line.[37] Also employed by the Marconi Company was David Sarnoff, who later headed RCA. Wireless communications were reportedly maintained for 72 hours between Carpathia and Sarnoff,[38] but Sarnoffs involvement has been questioned by some modern historians. When Carpathia docked in New York, Marconi went aboard with a reporter from The New York Times to talk with Bride, the surviving operator.[37]On 18 June 1912, Marconi gave evidence to the Court of Inquiry into the loss of Titanic regarding the marine telegraphys functions and the procedures for emergencies at sea.[39] Britains postmaster-general summed up, referring to the Titanic disaster: Those who have been saved, have been saved through one man, Mr. Marconi…and his marvelous invention.[40] 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.[41]Continuing work“Have I done the world good, or have I added a menace?[42]”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 only be used for radiotelegraph 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.Later yearsMarconi with his wife c. 1910In 1914, Marconi was made a Senator in the Italian Senate 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 militarys radio service. He attained the rank of lieutenant in the Italian Army and of commander in the Italian Navy. In 1929, he was made a marquess by King Victor Emmanuel III.Marconi joined the Italian Fascist party in 1923. 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 died in Rome on 20 July 1937 at age 63, following a series of heart attacks, and Italy held a state funeral for him. As a tribute, shops on the street where he lived were Closed for national mourning.[43] In addition, at 6 pm the next day, the time designated for the funeral, all BBC transmitters and wireless Post Office transmitters in the British Isles observed two minutes of silence in his honor. The British Post Office also sent a message requesting that all broadcasting ships honor Marconi with two minutes of broadcasting silence as well.[43] His remains are housed in the Villa Griffone at Sasso Marconi, Emilia-Romagna, which assumed that name in his honour in 1938.[44][45]In 1943, the Supreme Court of the United States handed down a decision on Marconis radio patents restoring some of the prior patents of Oliver Lodge, John Stone Stone, and Nikola Tesla.[46][47] The decision was not about Marconis original radio patents[48] and the court declared that their decision had no bearing on Marconis claim as the first to achieve radio transmission, just that since Marconis claim to certain patents were questionable, he could not claim infringement on those same patents.[49] 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.[46]
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