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Robert Goldschmidt
Robert B. Goldschmidt (1877–1935) was a Belgian chemist, physicist, and engineer who first proposed the idea of standardized microfiche (microfilm). Goldschmidt was a polymath who also made advances in aviation and radio, among other fields. In 1913 he constructed a major radio facility at Laeken, Belgium, where in 1914 he and Raymond Braillard inaugurated Europe's first regular radio concert broadcasts. He was also a participant in the first and second international Solvay Conferences reviewing outstanding issues in chemistry and physics. Education and academic career Educated in Brussels and Berlin, Goldschmidt was a professor of chemistry at the University of Brussels for some thirty years. Career Microfilm In the first years of the twentieth century, he worked with Paul Otlet on the creation of microfilm, then known as "microphotographs. In 1906, he and Otlet proposed what they called the "livre microphotographique," which they considered to be a cheaper, more space-sav ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Brussels
Brussels, officially the Brussels-Capital Region, (All text and all but one graphic show the English name as Brussels-Capital Region.) is a Communities, regions and language areas of Belgium#Regions, region of Belgium comprising #Municipalities, 19 municipalities, including the City of Brussels, which is the capital of Belgium. The Brussels-Capital Region is located in the central portion of the country. It is a part of both the French Community of Belgium and the Flemish Community, and is separate from the Flemish Region (Flanders), within which it forms an enclave, and the Walloon Region (Wallonia), located less than to the south. Brussels grew from a small rural settlement on the river Senne (river), Senne to become an important city-region in Europe. Since the end of the Second World War, it has been a major centre for international politics and home to numerous international organisations, politicians, Diplomacy, diplomats and civil servants. Brussels is the ''de facto' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Spark-gap Transmitter
A spark-gap transmitter is an obsolete type of transmitter, radio transmitter which generates radio waves by means of an electric spark."Radio Transmitters, Early" in Spark-gap transmitters were the first type of radio transmitter, and were the main type used during the wireless telegraphy or "spark" era, the first three decades of radio, from 1887 to the end of World War I. German physicist Heinrich Hertz built the first experimental spark-gap transmitters in 1887, with which he proved the existence of radio waves and studied their properties. A fundamental limitation of spark-gap transmitters is that they generate a series of brief transient pulses of radio waves called Damped wave (radio transmission), damped waves; they are unable to produce the continuous waves used to carry audio signal, audio (sound) in modern AM broadcasting, AM or FM broadcasting, FM radio transmission. So spark-gap transmitters could not transmit audio, and instead transmitted information by radiotelegra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
1935 Deaths
Events January * January 7 – Italian premier Benito Mussolini and French Foreign Minister Pierre Laval conclude an agreement, in which each power agrees not to oppose the other's colonial claims. * January 12 – Amelia Earhart becomes the first person to successfully complete a solo flight from Hawaii to California, a distance of . * January 13 – A plebiscite in the Territory of the Saar Basin shows that 90.3% of those voting wish to join Germany. * January 24 – The first canned beer is sold in Richmond, Virginia, United States, by Gottfried Krueger Brewing Company. February * February 6 – Parker Brothers begins selling the board game Monopoly in the United States. * February 13 – Richard Hauptmann is convicted and sentenced to death for the kidnapping and murder of Charles Lindbergh Jr. in the United States. * February 15 – The discovery and clinical development of Prontosil, the first broadly effective antibiotic, is published in a series of artic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
1877 Births
Events January * January 1 – Queen Victoria is proclaimed Empress of India by the Royal Titles Act 1876, introduced by Benjamin Disraeli, the Prime Minister of the United Kingdom . * January 8 – Great Sioux War of 1876: Battle of Wolf Mountain – Crazy Horse and his warriors fight their last battle with the United States Cavalry in Montana. * January 20 – The Conference of Constantinople ends, with Ottoman Turkey rejecting proposals of internal reform and Balkan provisions. * January 29 – The Satsuma Rebellion, a revolt of disaffected samurai in Japan, breaks out against the new imperial government; it lasts until September, when it is crushed by a professionally led army of draftees. February * February 17 – Major General Charles George Gordon of the British Army is appointed Governor-General of the Sudan. March * March 2 – Compromise of 1877: The 1876 United States presidential election is resolved with the selection of Ru ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Gabrielle Bénard Le Pontois
Gabrielle may refer to: * Gabrielle (given name), a French female given name derived from Gabriel Film and television * ''Gabrielle'' (1954 film), a Swedish film directed by Hasse Ekman * ''Gabrielle'' (2005 film), a French film directed by Patrice Chéreau * ''Gabrielle'' (2013 film), a Canadian film directed by Louise Archambault * Gabrielle (''Xena: Warrior Princess''), a character in the television series ''Xena: Warrior Princess'' * ''Gabrielle'' (TV series), a daytime talk show Music * Gabrielle (singer) (born 1969), English singer ** ''Gabrielle'' (album), her self-titled second album * "Gabrielle" (Hootenanny Singers song), song by Hootenanny Singers, 1964 * "Gabrielle" (Johnny Hallyday song), 1976 * Gabrielle Leithaug (born 1985), Norwegian X Factor contestant and singer known as Gabrielle * "Gabrielle", a 1980 single by The Nips * "Gabrielle", a 2020 single by Brett Eldredge * "Gabrielle", a song from the album ''Nymphetamine'' by Cradle of Filth * "Gabrielle", ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
PCGG
PCGG (also known as the Dutch Concerts station) was a radio station located at The Hague in the Netherlands, which began broadcasting a regular schedule of entertainment programmes on 6 November 1919. The station was established by engineer Hanso Idzerda, and is believed to have been Europe's first sustained broadcasting station, as well as one of the first stations in the world to transmit entertainment intended for a general audience. PCGG's schedule generally featured one or two evening programmes per week. Although located on the west coast of Holland, the station had a large audience across the English Channel in Great Britain. However, Idzerda ran into financial difficulties, and PCGG's licence was revoked on 11 November 1924, one month before his company, ''Nederlandsche Radio-Industrie'', shut down due to bankruptcy. History Formation Hans Idzerda was an electrical engineer, who worked with the Philips manufacturing company during World War I. (Holland was a neutral cou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Hans Idzerda
Hanso Schotanus á Steringa Idzerda (26 September 1885 – 2 November 1944) was a Dutch scientist, entrepreneur and pioneer in radio technology. Early life and education Idzerda was born in Weidum, Friesland as the son of Henrikus Idzerda, a country doctor, and Wilhelmina Frederika van de Wetering. His first names were officially Hans Henricus Schotanus à Steringa and were a variant of the first names of his grandfather Hanso Henricus Schotanus a Sterringa Idzerda (1831-1893), who was a physician, surgeon, and midwife in Rauwert. Although coming from a family of doctors, he decided to study engineering at the Rheinisches Technikum in Bingen am Rhein, Germany, which he completed in 1913 as an electrical engineer. Career He then settled in Scheveningen in the Ten Hovestraat as an independent consultant "for the application of electricity in every field". He probably first registered at his branch in The Hague in June 1913 under his first names Hanso Henricus and the surname Sc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Elisabeth Of Bavaria, Queen Of Belgium
Elisabeth of Bavaria (Elisabeth Gabriele Valérie Marie; 25 July 187623 November 1965) was Queen of the Belgians from 23 December 1909 to 17 February 1934 as the wife of King Albert I of Belgium, Albert I, and a duchess in Bavaria by birth. She was the mother of King Leopold III of Belgium and of Queen Marie José of Belgium, Marie-José of Italy, and grandmother of kings Baudouin of Belgium, Baudouin and Albert II of Belgium, and Grand Duchess Joséphine-Charlotte of Belgium, Joséphine-Charlotte of Luxembourg. Family She was born in Possenhofen Castle, her father was Duke Karl Theodor in Bavaria, head of a cadet branch of the Bavarian royal family, and an ophthalmologist. She was named after her paternal aunt, Empress Elisabeth of Austria, better known as Sisi. Her mother was Infanta Maria José of Portugal, daughter of exiled Miguel I of Portugal. Charlotte, Grand Duchess of Luxembourg, Zita of Bourbon-Parma, Empress Zita, the last Empress of Austria and Queen of Hungary, a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Amateur Radio
Amateur radio, also known as ham radio, is the use of the radio frequency radio spectrum, spectrum for purposes of non-commercial exchange of messages, wireless experimentation, self-training, private recreation, radiosport, contesting, and emergency, emergency communications. The term ''"radio amateur"'' is used to specify ''"a duly authorized person interested in radioelectric practice with a purely personal aim and without wikt:pecuniary, pecuniary interest"'' (either direct monetary or other similar reward); and to differentiate it from commercial broadcasting, public safety (police and fire), or two-way radio professional services (maritime, aviation, taxis, etc.). The amateur radio service (''amateur service'' and ''amateur-satellite service'') is established by the International Telecommunication Union (ITU) through their recommended radio regulations. National governments regulate technical and operational characteristics of transmissions and issue individual station li ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
