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Author: Susan Zannos Publisher: ISBN: 9781584152651 Category : Inventors Languages : en Pages : 0
Book Description
Guglielmo Marconi was a young man fascinated with the recently discovered phenomenon of electricity. Telegraph wires were already being used to send messages with electricity-there was even a cable under the Atlantic Ocean making communication between continents possible. But when Marconi learned about the electromagnetic waves scientists had discovered, he thought that they could be used to send messages without wires. In 1894, when he was 20 years old, Marconi began his experiments in sending messages: first a few feet, next a few yards, then over a mile, and at last across the Atlantic Ocean. Marconi's wireless telegraphy made it possible, for the first time, for ships at sea to communicate with the land and with each other. Marconi's work provided the foundation for the amazing developments in electronic technology that occurred in the 20th century-radio, television, radar, sonar, microwave ovens-and are still occurring at dizzying speed. Book jacket.
Author: Susan Zannos Publisher: ISBN: 9781584152651 Category : Inventors Languages : en Pages : 0
Book Description
Guglielmo Marconi was a young man fascinated with the recently discovered phenomenon of electricity. Telegraph wires were already being used to send messages with electricity-there was even a cable under the Atlantic Ocean making communication between continents possible. But when Marconi learned about the electromagnetic waves scientists had discovered, he thought that they could be used to send messages without wires. In 1894, when he was 20 years old, Marconi began his experiments in sending messages: first a few feet, next a few yards, then over a mile, and at last across the Atlantic Ocean. Marconi's wireless telegraphy made it possible, for the first time, for ships at sea to communicate with the land and with each other. Marconi's work provided the foundation for the amazing developments in electronic technology that occurred in the 20th century-radio, television, radar, sonar, microwave ovens-and are still occurring at dizzying speed. Book jacket.
Author: Marc Raboy Publisher: Oxford University Press ISBN: 0199313601 Category : Technology & Engineering Languages : en Pages : 888
Book Description
A little over a century ago, the world went wireless. Cables and all their limiting inefficiencies gave way to a revolutionary means of transmitting news and information almost everywhere, instantaneously. By means of "Hertzian waves," as radio waves were initially known, ships could now make contact with other ships (saving lives, such as on the doomed S.S. Titanic); financial markets could coordinate with other financial markets, establishing the price of commodities and fixing exchange rates; military commanders could connect with the front lines, positioning artillery and directing troop movements. Suddenly and irrevocably, time and space telescoped beyond what had been thought imaginable. Someone had not only imagined this networked world but realized it: Guglielmo Marconi. As Marc Raboy shows us in this enthralling and comprehensive biography, Marconi was the first truly global figure in modern communications. Born to an Italian father and an Irish mother, he was in many ways stateless, working his cosmopolitanism to advantage. Through a combination of skill, tenacity, luck, vision, and timing, Marconi popularized--and, more critically, patented--the use of radio waves. Soon after he burst into public view at the age of 22 with a demonstration of his wireless apparatus in London, 1896, he established his Wireless Telegraph & Signal Company and seemed unstoppable. He was decorated by the Czar of Russia, named an Italian Senator, knighted by King George V of England, and awarded the Nobel Prize for Physics--all before the age of 40. Until his death in 1937, Marconi was at the heart of every major innovation in electronic communication, courted by powerful scientific, political, and financial interests. He established stations and transmitters in every corner of the globe, from Newfoundland to Buenos Aires, Hawaii to Saint Petersburg. Based on original research and unpublished archival materials in four countries and several languages, Raboy's book is the first to connect significant parts of Marconi's story, from his early days in Italy, to his groundbreaking experiments, to his protean role in world affairs. Raboy also explores Marconi's relationshps with his wives, mistresses, and children, and examines in unsparing detail the last ten years of the inventor's life, when he returned to Italy and became a pillar of Benito Mussolini's fascist regime. Raboy's engrossing biography, which will stand as the authoritative work of its subject, proves that we still live in the world Marconi created.
Author: Gavin Weightman Publisher: Da Capo Press ISBN: 0786748540 Category : History Languages : en Pages : 362
Book Description
The world at the turn of the twentieth century was in the throes of "Marconi-mania"-brought on by an incredible invention that no one could quite explain, and by a dapper and eccentric figure (who would one day win the newly minted Nobel Prize) at the center of it all. At a time when the telephone, telegraph, and electricity made the whole world wonder just what science would think of next, the startling answer had come in 1896 in the form of two mysterious wooden boxes containing a device one Guglielmo Marconi had rigged up to transmit messages "through the ether." It was the birth of the radio, and no scientist in Europe or America, not even Marconi himself, could at first explain how it worked -- it just did. And no one knew how far these radio waves could travel, until 1903, when a message from President Theodore Roosevelt to the king of England flashed from Cape Cod to Cornwall clear across the Atlantic.Here is a rich portrait of the man and his era-and a captivating tale of science and scientists, business and businessmen. There are stories of British blowhards, American con artists-and Marconi himself: a character par excellence, who eventually winds up a virtual prisoner of his worldwide fame and fortune.
Author: G.R.M. Garratt Publisher: IET ISBN: 0852968450 Category : Performing Arts Languages : en Pages : 105
Book Description
Radio was as much the culmination of the work of a series of scientists in the 19th Century, starting with Faraday, as it was an invention by Marconi. This book aims to illustrate the contributions made by these scientists and show how each was dependent upon the work and ideas of his predecessors; Faraday, Henry, Maxwell, Hughes, Fitzgerald, Hertz, Lodge and Marconi.
Author: Timothy C. Campbell Publisher: U of Minnesota Press ISBN: 9780816644421 Category : Technology & Engineering Languages : en Pages : 252
Book Description
Wireless technology has become deeply embedded in everyday life, but its impact cannot be fully understood without probing the contributions of the Italian inventor Guglielmo Marconi (1874-1937), who ushered in the beginning of wireless communication. Marconi produced and detected sound waves over long distances, using the curvature of the earth for direction, and laid the foundations for what we know as radio—the original mobile, voice-activated, and electronic media community. Timothy C. Campbell demonstrates that Marconi’s invention of the wireless telegraph was not simply a technological act but also had an impact on poetry and aesthetics and linked the written word to the rise of mass politics. Reading influential works such as F. T. Marinetti’s futurist manifestos, Rudolf Arnheim’s 1936 study Radio, writings by Gabriele D’Annunzio, and Ezra Pound’s Cantos, Campbell reveals how the newness of wireless technology was inscribed in the ways modernist authors engaged with typographical experimentation, apocalyptic tones, and newly minted models for registering voices. Wireless Writing in the Age of Marconi presents an alternative history of modernism that listens as well as looks and bears in mind the altered media environment brought about by the emergence of the wireless. Timothy C. Campbell is associate professor of Italian at Cornell University.
Author: Lewis Coe Publisher: McFarland ISBN: 0786426624 Category : Performing Arts Languages : en Pages : 205
Book Description
In 1873 Scottish physicist James Clerk Maxwell first advanced the idea that there might be electromagnetic waves that were similar to light waves, a startling concept to the scientists of his day. About 13 years later, German physicist Heinrich Hertz demonstrated in his laboratory that electromagnetic radiation did indeed exist. But it was not until after Hertz's death that a young Italian named Guglielmo Marconi got the idea for a practical communications system based on Hertz's work. Marconi was surprised and disappointed that the Italian government was not interested in his newly discovered wireless communications system, and thus he took his equipment to England. From that point on, the wireless became identified with Britain. From these beginnings, wireless radio became the basis of a revolution that has resulted in the satellite communications of today. This history first looks at Marconi's invention and then explores its many applications, including marine radio, cellular telephones, police and military uses, television and radar. Radio collecting is also discussed, and brief biographies are provided for the major figures in the development and use of the wireless.
Author: D. Baird Publisher: Springer Science & Business Media ISBN: 9401588554 Category : Science Languages : en Pages : 328
Book Description
The sub-title of this symposium is accurate and, in a curious way, promises more than it states: Classical Physicist, Modem Philosopher. Heinrich Hertz, as the con summate experimentalist of 19th century technique and as brilliant clarifying critic of physical theory of his time, achieved one of the fulfilments but at the same time opened one of the transition points of classical physics. Thus, in his 'popular' lecture 'On the Relations Between Light and Electricity' at Heidelberg in the Fall of 1889, Hertz identified the ether as henceforth the most fundamental problem of physics, as the conceptual mystery but also the key to understanding mass, electric ity, and gravity. Of Hertz's demonstration of electric waves, Helmholtz told the Physical Society of Berlin: "Gentlemen! I have to communicate to you today the most important physical discovery of the century. " Hertz, philosophizing in his direct, lucid, pithy style, once wrote "We have to imagine". Perhaps this is metaphysics on the horizon? In the early pages of his Principles of Mechanics, we read A doubt which makes an impression on our mind cannot be removed by calling it metaphysical: every thoughtful mind as such has needs which scientific men are accustomed to denote as metaphysical. (PM23) And at another place, concerning the terms 'force' and 'electricity' and the alleged mystery of their natures, Hertz wrote: We have an obscure feeling of this and want to have things cleared up.
Author: Chen-Pang Yeang Publisher: University of Chicago Press ISBN: 022603481X Category : Science Languages : en Pages : 378
Book Description
By the late nineteenth century, engineers and experimental scientists generally knew how radio waves behaved, and by 1901 scientists were able to manipulate them to transmit messages across long distances. What no one could understand, however, was why radio waves followed the curvature of the Earth. Theorists puzzled over this for nearly twenty years before physicists confirmed the zig-zag theory, a solution that led to the discovery of a layer in the Earth’s upper atmosphere that bounces radio waves earthward—the ionosphere. In Probing the Sky with Radio Waves, Chen-Pang Yeang documents this monumental discovery and the advances in radio ionospheric propagation research that occurred in its aftermath. Yeang illustrates how the discovery of the ionosphere transformed atmospheric science from what had been primarily an observational endeavor into an experimental science. It also gave researchers a host of new theories, experiments, and instruments with which to better understand the atmosphere’s constitution, the origin of atmospheric electricity, and how the sun and geomagnetism shape the Earth’s atmosphere. This book will be warmly welcomed by scholars of astronomy, atmospheric science, geoscience, military and institutional history, and the history and philosophy of science and technology, as well as by radio amateurs and electrical engineers interested in historical perspectives on their craft.
Author: Susan Zannos
Author: Susan Zannos
Author: Marc Raboy
Author: Sungook Hong
Author: Gavin Weightman
Author: G.R.M. Garratt
Author: Timothy C. Campbell
Author: Lewis Coe
Author: Beverley Birch
Author: D. Baird
Author: Chen-Pang Yeang