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http://dbpedia.org/ontology/abstract Die Geschichte der Erfindung des Radios (Latein radius ‚Strahl‘) ist eine Reihe von Ereignissen im Zeitraum des 19. und der ersten Hälfte des 20. Jahrhunderts. Sie ist Bestandteil der Technikgeschichte und ebenso der Mediengeschichte dieser Zeit. , La invención del medio de comunicación com … La invención del medio de comunicación comúnmente conocido como radio, aunque generalmente se atribuyó a Guillermo Marconi en los años 1890, abarcó varias décadas desde que se establecieron sus fundamentos teóricos en 1873, hasta que se logró probar la existencia del fenómeno radioeléctrico y finalmente se desarrollaron las técnicas necesarias para su uso en la transmisión inalámbrica de señales. A pesar de que la distribución fue atribuida a Guillermo Marconi, o incluso a Nikola Tesla, según últimas investigaciones realizadas, el español Julio Cervera Baviera desarrolló la radio antes que Marconi. Cierto es que el italiano inventó la telegrafía sin hilos, pero para transmitir señales, no sonidos. El segorbino Julio Cervera Baviera Transmitió la voz humana sin hilos entre Javea (Alicante) e Ibiza en 1902, lo que significó la conexión de dos puntos alejados cerca de 85 kilómetros. Sin embargo, hay que tener en cuenta que 15 años antes que Marconi y 4 años antes que Julio Cervera, Nikola Tesla ya había hecho varias demostraciones y publicaciones de los principios de la radio.​​ Tras la usurpación de Marconi en la patente, Nikola Tesla llevó a los tribunales a Marconi ganando el litigio ante el Tribunal Supremo de los EE. UU. y quedando como el auténtico inventor de la radio. La idea de que los cables necesarios para el telégrafo eléctrico podrían eliminarse, creando un sistema de telegrafía sin hilos, era bastante anterior a la existencia de la comunicación por radio. Los inventores intentaron construir sistemas basados en la conducción eléctrica del aire, la inducción electromagnética o en sus propias ideas teóricas. Varios inventores y experimentadores se encontraron con las ondas de radio antes de que se comprobara que existían, pero por entonces se consideraron como fenómenos de inducción electromagnética. El descubrimiento en la década de 1880 de la radiación electromagnética por Heinrich Rudolf Hertz (incluidas las ondas de radio) se produjo después de más de medio siglo de desarrollo teórico sobre la conexión entre la electricidad y el magnetismo a partir de principios de 1800, y supuso la demostración práctica de la teoría sobre el electromagnetismo desarrollada por James Clerk Maxwell en 1873. El uso de las ondas de radio como medio de comunicación no se produjo inmediatamente después. Tras su descubrimiento, Hertz las consideró de poco valor práctico y otros experimentadores que exploraron las propiedades físicas del nuevo fenómeno, como Oliver Joseph Lodge y Jagdish Chandra Bose, mientras transmitían ondas de radio a cierta distancia, no parecieron ver ningún valor en el desarrollo de un sistema de comunicación basado en ellas, aunque durante sus experimentos desarrollaron distintos componentes electrónicos y métodos para mejorar la transmisión y detección de ondas electromagnéticas. A mediados de la década de 1890, basándose en las técnicas que los físicos utilizaban para estudiar las ondas electromagnéticas, Guillermo Marconi desarrolló el primer aparato para la comunicación por radio a larga distancia.​ El 23 de diciembre de 1900, el inventor canadiense Reginald Fessenden se convirtió en la primera persona en enviar señales de voz (telefonía sin hilos) por medio de ondas electromagnéticas, transmitiendo con éxito a una distancia de aproximadamente 1,6 km, y seis años después, en la Nochebuena de 1906, se convirtió en la primera persona en realizar una emisión de radio pública.​​ Finalmente en 1943 la Corte Suprema de Estados Unidos reconoció a Nikola Tesla la invención de la radio, pues suyas eran las patentes de los elementos fundamentales que permitían su funcionamiento.amentales que permitían su funcionamiento. , Радіо — методи та засоби, призначені для б … Радіо — методи та засоби, призначені для бездротового передавання, приймання або одночасного передавання та приймання інформації на відстані. Носієм інформації (себто повідомлення апріорі невідомого) є електромагнітна хвиля радіочастотного діапазону (радіохвиля), далі в тексті — ЕМХ. Наприклад, якщо кинути камінь у воду, то інформацію про це ми отримаємо за рахунок поширення водяних хвиль навкруги від місця падіння каменя. Так саме поширюються у просторі ЕМХ.меня. Так саме поширюються у просторі ЕМХ. , The invention of radio communication was p … The invention of radio communication was preceded by many decades of establishing theoretical underpinnings, discovery and experimental investigation of radio waves, and engineering and technical developments related to their transmission and detection. These developments allowed Guglielmo Marconi to turn radio waves into a wireless communication system. The idea that the wires needed for electrical telegraph could be eliminated, creating a wireless telegraph, had been around for a while before the establishment of radio-based communication. Inventors attempted to build systems based on electric conduction, electromagnetic induction, or on other theoretical ideas. Several inventors/experimenters came across the phenomenon of radio waves before its existence was proven; it was written off as electromagnetic induction at the time. The discovery of electromagnetic waves, including radio waves, by Heinrich Rudolf Hertz in the 1880s came after theoretical development on the connection between electricity and magnetism that started in the early 1800s. This work culminated in a theory of electromagnetic radiation developed by James Clerk Maxwell by 1873, which Hertz demonstrated experimentally. Hertz considered electromagnetic waves to be of little practical value. Other experimenters, such as Oliver Lodge and Jagadish Chandra Bose, explored the physical properties of electromagnetic waves, and they developed electric devices and methods to improve the transmission and detection of electromagnetic waves. But they did not apparently see the value in developing a communication system based on electromagnetic waves. In the mid 1890s, building on techniques physicists were using to study electromagnetic waves, Guglielmo Marconi developed the first apparatus for long-distance radio communication. On 23 December 1900, the Canadian inventor Reginald A. Fessenden became the first person to send audio (wireless telephony) by means of electromagnetic waves, successfully transmitting over a distance of about a mile (1.6 kilometers,) and six years later on Christmas Eve 1906 he became the first person to make a public wireless broadcast. By 1910, these various wireless systems had come to be called "radio".ess systems had come to be called "radio".
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rdfs:comment Die Geschichte der Erfindung des Radios (Latein radius ‚Strahl‘) ist eine Reihe von Ereignissen im Zeitraum des 19. und der ersten Hälfte des 20. Jahrhunderts. Sie ist Bestandteil der Technikgeschichte und ebenso der Mediengeschichte dieser Zeit. , Радіо — методи та засоби, призначені для б … Радіо — методи та засоби, призначені для бездротового передавання, приймання або одночасного передавання та приймання інформації на відстані. Носієм інформації (себто повідомлення апріорі невідомого) є електромагнітна хвиля радіочастотного діапазону (радіохвиля), далі в тексті — ЕМХ. Наприклад, якщо кинути камінь у воду, то інформацію про це ми отримаємо за рахунок поширення водяних хвиль навкруги від місця падіння каменя. Так саме поширюються у просторі ЕМХ.меня. Так саме поширюються у просторі ЕМХ. , La invención del medio de comunicación com … La invención del medio de comunicación comúnmente conocido como radio, aunque generalmente se atribuyó a Guillermo Marconi en los años 1890, abarcó varias décadas desde que se establecieron sus fundamentos teóricos en 1873, hasta que se logró probar la existencia del fenómeno radioeléctrico y finalmente se desarrollaron las técnicas necesarias para su uso en la transmisión inalámbrica de señales. Finalmente en 1943 la Corte Suprema de Estados Unidos reconoció a Nikola Tesla la invención de la radio, pues suyas eran las patentes de los elementos fundamentales que permitían su funcionamiento.amentales que permitían su funcionamiento. , The invention of radio communication was p … The invention of radio communication was preceded by many decades of establishing theoretical underpinnings, discovery and experimental investigation of radio waves, and engineering and technical developments related to their transmission and detection. These developments allowed Guglielmo Marconi to turn radio waves into a wireless communication system. By 1910, these various wireless systems had come to be called "radio".ess systems had come to be called "radio".
rdfs:label Invención de la radio , اختراع المذياع , Erfindung des Radios , Invention of radio , Історія виникнення радіо
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