Guglielmo MarconiGuglielmo MarconiGuglielmo Marconi (25 April 1874 – 20 July 1937) was an Italian electrical engineer and Nobel laureate, known for the development of a practical wireless telegraphy system commonly known as the "radio". Marconi was President of the Accademia d'Italia and a member of the Fascist Grand Council of Italy. BackgroundMarconi was born near to Bologna, Italy, the second son of Giuseppe Marconi, an Italian landowner, and his Irish wife, Annie Jameson, granddaughter of the founder of the Jameson & Sons Distillery on 25 April 1874. He was educated in Florence and, later, in Livorno. Middle yearsAlthough many scientists and inventors contributed to the invention of wireless telegraphy, including Oliver Lodge, Hans Christian Ørsted, Michael Faraday, Heinrich Rudolf Hertz, Jagadis Chandra Bose, Alexander Popov, Nikola Tesla, Thomas Alva Edison, Nathan Stubblefield, and others, Marconi's practical system achieved widespread use, so he is often credited as the "father of radio." Marconi's system was based primarily on Nikola Tesla's system, theoretically demonstrated during a widely known lecture titled On Light and Other High Frequency Phenomena, presented before a meeting of the National Electric Light Association in St. Louis and the Franklin Institute in Philadelphia. Marconi sent radio signals of 300 meters (and up to 6 Kilometers) on Salisbury Plain (England) in 1896. Marconi was awarded the patent for Radio with British Patent GB12039, "Improvements in transmitting electrical impulses and signals and in apparatus there-for" on 2 July 1897 (sometimes recognised as the World's first patent). In July 1897, Marconi formed the London based Wireless Telegraph Trading Signal Company (later renamed the Marconi Wireless Telegraph Company), which opened the World's first "wireless" factory in Hall Street, Chelmsford, England in 1898, employing around 50 people. Marconi made the first wireless transmission across water May 13th 1897, from Lavernock Point, South Wales to Flat holm Island. He made a wireless transmission across the water from Ballycastle (Northern Ireland) to Rathlin Island in 1898. He received the first trans-Atlantic radio signal on 12 December 1901 at Signal Hill in St John's, Newfoundland (now in Canada) using a 400-foot kite-supported antenna for reception. This was surprising at the time as it was thought by the mainstream that a radio signal could only be transmitted in the line of sight. The transmitting station in Poldhu, Cornwall used a spark-gap transmitter to produce a signal with a frequency of approximately 500kHz and a power of 100 times more than any radio signal previously produced (a maximum time-averaged power of 35 kilowatts, but with a peak pulse power of several tens of megawatts [1]). The message received was three dots, the Morse code for the letter S. To reach Newfoundland the signal would have to bounce off the ionosphere twice. Dr Jack Belrose has recently contested this, however, based on theoretical work as well as an actual reenactment of the experiment; he believes that Marconi heard only random atmospheric noise and mistook it for the signal. However there is little doubt that by February 1902, Marconi's apparatus was fairly reliably receiving complete messages at 2500 km (1550 miles) at night and 1100 km (700 miles) by day, and usually picked up a special test signal at 3400 km (2100 miles), the distance of Poldhu to Newfoundland. By 1903, the Marconi Company was carrying regular transatlantic news transmissions. On 16 March 1905 he married Beatrice O'Brien, daughter of Edward Donough O'Brien, 14th Baron Inchiquin, Ireland. They had three daughters, one of whom lived only a few weeks, and one son. They divorced later. Marconi did not achieve fully reliable transatlantic communication until 1907. He was the founder of the Marconi Corporation and the joint 1909 recipient of the Nobel Prize in Physics along with Karl Ferdinand Braun. During World War I, Marconi was in charge of the Italian wireless service. Marconi developed shortwave secret communication transmissions during this time. Later yearsCover of Time Magazine (December 6, 1926)In 1901, Marconi built a station near Wellfleet, MA. It was first called CC (Cape Cod), then MCC (Marconi Cape Cod) and finally WCC when the US government issued "W" call letters to stations east of the Mississippi. In 1903, from this station, Marconi sent the famous message from the President of the US to the King of England. This message was sent directly from Welfleet to England,without being relayed via Glace Bay, Nova Scotia (Which was another Marconi station). During WWI, all radio stations went off the air. When the war was over, Marconi had planned to move the station to Chatham. This was mainly because the ocean had eroded the cliff where the Welfleet station stood. Reportedly, the U.S. Government was worried about foreign ownership of radio stations. Marconi was forced to sell all his interests in the US to the RCA Corp. WCC remained for several years, was sold to MCI and was finally shut down. In 1911, Marconi receives the patent GB13020, "Installations for wireless telegraphy". In 1914 Marconi built Chatham Radio WCC in Chatham Cape Cod, which would become the busiest ship to shore radio station for most of the twentieth century. In 1920 Marconi's Chelmsford factory was the location of the first officially publicised sound broadcasts in the UK, one of them featuring Dame Nellie Melba. In 1922 the World's first regular wireless broadcasts for entertainment commenced from the Marconi Research Centre at Writtle near Chelmsford. Marconi joined the Italian fascist party in 1923. Benito Mussolini made Marconi President of the Accademia d'Italia, which also made him a member of the Fascist Grand Council. He made fascist speeches on the radio in a number of countries. On 15 June 1927 he married Maria Cristina Bezzi-Scali; Mussolini was best man. Their daughter was named Maria Elettra Elena Anna Marconi. Marconi died in Rome on 20 July 1937. Who invented the radio?Marconi's claim that he invented radio was always disputed by Nikola Tesla and Alexander Popov. Marconi did develop a practical model and was responsible for the first successful exploitation of the invention practically at the same time with Alexander Popov, who described his findings in a paper published in 1895. Popov publicly demonstrated the transmission of radio waves between different campus buildings to the St Petersburg Physical Society in March 1896. Actually, Marconi publicly demonstrated his system several months later, in September. Upon learning about Marconi's experiments, Popov effected ship-to-shore communication over a distance of 6 miles in 1898 and 30 miles in 1899. He died in 1905 and his claim was not pressed by the Russian government until 40 years later. Tesla initially held the rights to radio, but the US Patent Office reversed its decision and awarded Marconi the patent for radio. Tesla fought to re-acquire his radio patent. A lawsuit regarding this was resolved by American courts in Tesla's favor (1943). This decision was based on the fact that there was prior work existing before the establishment of Marconi's patent (developed by Tesla). At the time, the United States Army was involved in a patent infringement lawsuit with Marconi's company regarding radio, leading some to posit that the government granted Tesla the patent on order to nullify any claims Marconi would have to compensation (as, some posit, the government's initial reversal to grant Marconi the patent right in order to nullify any claims Tesla had for compensation). Another pioneer of wireless communication was Prof Jagdish Bose. In 1894, Bose ignited gunpowder and rang a bell at a distance using electromagnetic waves, confirming that communication signals can be sent without using wires. Patents
This page about Guglielmo Marconi includes information from a Wikipedia article. Additional articles about Guglielmo Marconi News stories about Guglielmo Marconi External links for Guglielmo Marconi Videos for Guglielmo Marconi Wikis about Guglielmo Marconi Discussion Groups about Guglielmo Marconi Blogs about Guglielmo Marconi Images of Guglielmo Marconi |
|
In 1894, Bose ignited gunpowder and rang a bell at a distance using electromagnetic waves, confirming that communication signals can be sent without using wires. A lawsuit regarding this was resolved by American courts in Tesla's favor (1943). Charlemagne in later imagery (see Dürer portrait right) is often portrayed with flowing blond hair, due to a misunderstanding of Einhart's Vita caroli Magni (chapter 22) where Charlemagne in his age had canitie pulchra "beautiful white hair" which has been rendered as blond or fair in many translations. Tesla fought to re-acquire his radio patent. Even the verbal portrait by Einhard suppresses details that would have been indecorous in this context. Tesla initially held the rights to radio, but the US Patent Office reversed its decision and awarded Marconi the patent for radio. The images of enthroned Charlemagne, God's representative on Earth, bear more connections to the icons of Christ in Majesty than to modern (or Antique) conceptions of portraiture. He died in 1905 and his claim was not pressed by the Russian government until 40 years later. Charlemagne, as an ideal ruler, ought to be portrayed in the corresponding fashion, any contemporary would have assumed. Upon learning about Marconi's experiments, Popov effected ship-to-shore communication over a distance of 6 miles in 1898 and 30 miles in 1899. The Roman tradition of realistic personal portraiture was in complete eclipse at the time of Charlemagne, where individual traits were submerged in iconic typecastings. Actually, Marconi publicly demonstrated his system several months later, in September. This was quite an achievement for kings at this time, of whom most were illiterate. Popov publicly demonstrated the transmission of radio waves between different campus buildings to the St Petersburg Physical Society in March 1896. Another interesting note about Charlemagne was that he took a serious effort in his and others' scholarship and had learned to read in his adulthood, although he never quite learned how to write. Marconi did develop a practical model and was responsible for the first successful exploitation of the invention practically at the same time with Alexander Popov, who described his findings in a paper published in 1895. Charlemagne's genealogical tree was quite extensive, and can be traced almost completely up to modern times; among the well known direct descendants of Charlemagne are William Howard Taft, 27th President of the United States, and British actor Christopher Lee. Marconi's claim that he invented radio was always disputed by Nikola Tesla and Alexander Popov. They were married into houses of nobility and as a result of intermarriages many people of noble descent can indeed trace their ancestry back to Charlemagne. Marconi died in Rome on 20 July 1937. Charlemagne's marriage and relationship politics and ethics did, however, result in a fairly large number of descendants, all of whom had far better life expectancies than is usually the case for children in that time period. Their daughter was named Maria Elettra Elena Anna Marconi. However, only a small percentage can actually prove descent from him. On 15 June 1927 he married Maria Cristina Bezzi-Scali; Mussolini was best man. It is frequently claimed by genealogists that all people with European ancestry alive today are probably descended from Charlemagne. He made fascist speeches on the radio in a number of countries. He was a model knight as one of the Nine Worthies. Benito Mussolini made Marconi President of the Accademia d'Italia, which also made him a member of the Fascist Grand Council. His canonization by Antipope Paschal III was never recognized by the Holy See. Marconi joined the Italian fascist party in 1923. Charlemagne himself was accorded sainthood inside the Holy Roman Empire after the 12th century. In 1922 the World's first regular wireless broadcasts for entertainment commenced from the Marconi Research Centre at Writtle near Chelmsford. One of the great medieval literature cycles, the Charlemagne cycle or the Matter of France, centres around the deeds of Charlemagne's historical commander of the Breton border, Roland, and the paladins who served as a counterpart to the knights of the Round Table; their tales were first told in the chansons de geste. In 1920 Marconi's Chelmsford factory was the location of the first officially publicised sound broadcasts in the UK, one of them featuring Dame Nellie Melba. Charlemagne enjoyed an important afterlife in European culture. In 1914 Marconi built Chatham Radio WCC in Chatham Cape Cod, which would become the busiest ship to shore radio station for most of the twentieth century. The pan-European nature of Charlemagne's influence is indicated by the origins of many of the men who worked for him: Alcuin, an Anglo-Saxon; Theodulf, a Visigoth; Paul the Deacon, a Lombard; and Angilbert and Einhard, Franks. In 1911, Marconi receives the patent GB13020, "Installations for wireless telegraphy". Most of the surviving works of classical Latin were copied and preserved by Carolingian scholars. WCC remained for several years, was sold to MCI and was finally shut down. Charlemagne's reign is often referred to as the Carolingian Renaissance because of the flowering of scholarship, literature, art, and architecture. Marconi was forced to sell all his interests in the US to the RCA Corp. He also spoke Latin and understood some Greek. Government was worried about foreign ownership of radio stations. Charlemagne's mother tongue was the Old High German dialect called Frankish. Reportedly, the U.S. At least one of them, Bertha, had a recognized relationship, if not a marriage, with Angilbert, a member of Charlemagne's court circle. This was mainly because the ocean had eroded the cliff where the Welfleet station stood. After his death the surviving daughters entered or were forced to enter monasteries. When the war was over, Marconi had planned to move the station to Chatham. This may have been an attempt to control the number of potential alliances. During WWI, all radio stations went off the air. None of them contracted a sacramental marriage. This message was sent directly from Welfleet to England,without being relayed via Glace Bay, Nova Scotia (Which was another Marconi station). It is difficult to understand Charlemagne's attitude toward his daughters. In 1903, from this station, Marconi sent the famous message from the President of the US to the King of England. After Charlemagne's death, continental coinage degraded and most of Europe resorted to using the continued high quality English coin until about 1100. It was first called CC (Cape Cod), then MCC (Marconi Cape Cod) and finally WCC when the US government issued "W" call letters to stations east of the Mississippi. These three kingdoms would be the foundations of later France and the Holy Roman Empire. In 1901, Marconi built a station near Wellfleet, MA. He was succeeded by his only son to survive him, Louis the Pious, after whose reign the empire was divided between his three surviving sons according to Frankish tradition. Marconi developed shortwave secret communication transmissions during this time. When Charlemagne died in 814, he was buried in his own Cathedral at Aachen. During World War I, Marconi was in charge of the Italian wireless service. To enforce loyalty, he set up the system of missi dominici, meaning 'Envoys of the Lord.' In this system, one representative of the church and one representative of the emperor would head to the different counties and every year report back to Charlemagne on their status. He was the founder of the Marconi Corporation and the joint 1909 recipient of the Nobel Prize in Physics along with Karl Ferdinand Braun. Counts served as judges, administrators, and they enforced capitularies. Marconi did not achieve fully reliable transatlantic communication until 1907. Charlemagne organized his empire into 350 counties, each led by an appointed count. They divorced later. Charlemagne applied the system to much of the European Continent, and Offa's standard was voluntarily adopted by much of England. They had three daughters, one of whom lived only a few weeks, and one son. During this period, the livre and the sou were counting units, only the denier was a coin of the realm. On 16 March 1905 he married Beatrice O'Brien, daughter of Edward Donough O'Brien, 14th Baron Inchiquin, Ireland. pound)— both monetary and unit of weight— which was worth 20 sous (like the solidus, and later the shilling) or 240 deniers (like the denarius, and eventually the penny). By 1903, the Marconi Company was carrying regular transatlantic news transmissions. He set up a new standard, the livre (i.e. However there is little doubt that by February 1902, Marconi's apparatus was fairly reliably receiving complete messages at 2500 km (1550 miles) at night and 1100 km (700 miles) by day, and usually picked up a special test signal at 3400 km (2100 miles), the distance of Poldhu to Newfoundland. Both he and King Offa of Mercia took up the system set in place by Pippin. Dr Jack Belrose has recently contested this, however, based on theoretical work as well as an actual reenactment of the experiment; he believes that Marconi heard only random atmospheric noise and mistook it for the signal. Pursuing his father's reforms, Charlemagne did away with the monetary system based on the gold sou. To reach Newfoundland the signal would have to bounce off the ionosphere twice. To avoid frictions with the Eastern Emperor, Charles later called himself not Imperator Romanorum (a title reserved for the Eastern Emperor), but rather as Imperator Romanum gubernans Imperium (Emperor ruling the Roman Empire). The message received was three dots, the Morse code for the letter S. Though this, according to the sources, occurred against his intentions, Charles thus became the renewer of the Western Empire, which had expired in the 5th century. The transmitting station in Poldhu, Cornwall used a spark-gap transmitter to produce a signal with a frequency of approximately 500kHz and a power of 100 times more than any radio signal previously produced (a maximum time-averaged power of 35 kilowatts, but with a peak pulse power of several tens of megawatts [1]). In 800, at Mass on Christmas day in Rome, Pope Leo III crowned Charlemagne Imperator Romanorum (Emperor of the Romans). This was surprising at the time as it was thought by the mainstream that a radio signal could only be transmitted in the line of sight. In 797 (or 801?) the caliph of Baghdad, Harun al-Rashid, presented Charlemagne with an Asian elephant named Abul-Abbas (See History of elephants in Europe.). He received the first trans-Atlantic radio signal on 12 December 1901 at Signal Hill in St John's, Newfoundland (now in Canada) using a 400-foot kite-supported antenna for reception. He dreamed of the reconquest of Spain, but never fully succeeded in this goal. He made a wireless transmission across the water from Ballycastle (Northern Ireland) to Rathlin Island in 1898. After thirty years of war and eighteen battles, he conquered Saxony, a goal that had been the unattainable dream of Augustus, and proceeded to convert the conquered to Catholic Christianity, using force where necessary. Marconi made the first wireless transmission across water May 13th 1897, from Lavernock Point, South Wales to Flat holm Island. Charlemagne was engaged in almost constant battle throughout his reign. In July 1897, Marconi formed the London based Wireless Telegraph Trading Signal Company (later renamed the Marconi Wireless Telegraph Company), which opened the World's first "wireless" factory in Hall Street, Chelmsford, England in 1898, employing around 50 people. In 774 he deposed their king Desiderius and was himself crowned king of the Lombards, permanently unifying the kingdom of Italy to the Frankish crown. Marconi was awarded the patent for Radio with British Patent GB12039, "Improvements in transmitting electrical impulses and signals and in apparatus there-for" on 2 July 1897 (sometimes recognised as the World's first patent). Shortly after that, he marched against the Lombards in Italy. Marconi sent radio signals of 300 meters (and up to 6 Kilometers) on Salisbury Plain (England) in 1896. Carloman died on 5 December 771, leaving Charlemagne the leader of a reunified Frankish kingdom. Louis and the Franklin Institute in Philadelphia. Charles took the outer parts of the kingdom, bordering on the sea, namely Neustria, Aquitania and the northern parts of Austrasia, while Carloman attained the inner parts, bordering on Italy. Although many scientists and inventors contributed to the invention of wireless telegraphy, including Oliver Lodge, Hans Christian Ørsted, Michael Faraday, Heinrich Rudolf Hertz, Jagadis Chandra Bose, Alexander Popov, Nikola Tesla, Thomas Alva Edison, Nathan Stubblefield, and others, Marconi's practical system achieved widespread use, so he is often credited as the "father of radio." Marconi's system was based primarily on Nikola Tesla's system, theoretically demonstrated during a widely known lecture titled On Light and Other High Frequency Phenomena, presented before a meeting of the National Electric Light Association in St. On the death of Pippin the kingdom was divided between Charlemagne and his brother Carloman. He was educated in Florence and, later, in Livorno. Charlemagne was the elder son of Pippin the Younger (714 – 24 September 768, reigned 751 – 768) and his wife Bertrada of Laon (720 – 12 July 783); he was the brother of the Lady Bertha, mother of Roland. Marconi was born near to Bologna, Italy, the second son of Giuseppe Marconi, an Italian landowner, and his Irish wife, Annie Jameson, granddaughter of the founder of the Jameson & Sons Distillery on 25 April 1874. The best guesses include April 1, 747, after April 15, 747, or April 1, 748. . So at present, it is impossible to be certain of the date of the birth of Charlemagne. Marconi was President of the Accademia d'Italia and a member of the Fascist Grand Council of Italy. Other commentators weighing the primary records have suggested that the birth was one year later, 748. Guglielmo Marconi (25 April 1874 – 20 July 1937) was an Italian electrical engineer and Nobel laureate, known for the development of a practical wireless telegraphy system commonly known as the "radio". The birth of an Emperor on Easter is a coincidence likely to provoke comment, but there is no such comment documented in 747, leading some to suspect the Easter birthday was a pious fiction concocted as a way of honoring the Emperor. Patent 763772. In that year, April 1 is Easter. U.S. Another date is given in the Annales Petarienses, April 1, 747. Patent 676332. Second, 742 precedes the marriage of his parents (in 744), yet there is no indication that Charlemagne was born out of wedlock, and he inherited from his parents. U.S. First, the year 742 was calculated from his age given at death, rather than attested with primary sources. Patent 668315. Charlemagne's birthday was believed to be April 1, 742, but several factors led to reconsideration of this traditional date. U.S. . Patent 650110. Today both France and Germany look to him as a founding figure of their respective countries. U.S. His dual role as Emperor - Imperator Augustus - and King of the Franks provides the historical link between the Imperial dignity and the Frankish kingdoms and later Germany. Patent 650109. 742 or 747 – January 28, 814) (or Charles the Great, in German Karl der Große, in Latin Carolus Magnus, giving rise to the adjective form "Carolingian"), was king of the Franks from 771 to 814, King of the Lombards since 774, and the renewer of the Western Empire. U.S. Charlemagne (ca. Patent 647009. Nine Worthies. U.S. Carolingians. Patent 647008. List of Frankish Kings. U.S. Franks (main history of Frankish kingdoms). Patent 647007. Berkeley, CA: University of California Press, 2004 ISBN 0-520-23943-1. U.S. Alessandro Barbero: Charlemagne, father of a continent. Patent 627650. Aupais?. U.S. Gisele (781-808). Patent 624516. Bertha (779-823). U.S. Hildegarde (777-777). Patent 586193. Rhotrud (775-810). U.S. 774). Adelheid (b. 779 or 780). Lothar (d. Louis I The Pious, King of Aquitaine, Emperor (ruled 814–840). Pippin, King of Italy (ruled 781–810). 811). Charles, King of Neustria (d. 813). Pippin the Hunchback (d. 800). Luitgard (married 794) (d. 794). Fastrada (married 784) (d. Hildegard of Savoy (married Abt 771) (758–783). Ermengarda or Desiderata. Himiltrude. |