Who Invented the Radio?

Who Invented the Radio? PDF Author: Susan E. Hamen
Publisher: Lerner Publications (Tm)
ISBN: 1512483206
Category : Juvenile Nonfiction
Languages : en
Pages : 36

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Book Description
The story of how Nikola Tesla and Guglielmo Marconi faced off in a race to invent the radio will have readers at the edge of their seats!

Who Invented the Radio?

Who Invented the Radio? PDF Author: Susan E. Hamen
Publisher: Lerner Publications (Tm)
ISBN: 1512483206
Category : Juvenile Nonfiction
Languages : en
Pages : 36

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Book Description
The story of how Nikola Tesla and Guglielmo Marconi faced off in a race to invent the radio will have readers at the edge of their seats!

Charles Herrold, Inventor of Radio Broadcasting

Charles Herrold, Inventor of Radio Broadcasting PDF Author: Gordon Greb
Publisher: McFarland
ISBN: 0786483598
Category : Performing Arts
Languages : en
Pages : 260

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Book Description
Still broadcasting today, the world's first radio station was invented by Charles Herrold in 1909 in San Jose, California. His accomplishment was first documented in a notarized statement written by him and published in the Electro-Importing Company's 1910 catalog: "We have given wireless phone concerts to amateur wireless men throughout the Santa Clara Valley." Being the first to "broadcast" radio entertainment and information to a mass audience puts him at the forefront of modern day mass communication. This biography of Charles Herrold focuses on how he used primitive technology to get on the air. Today it is a 50,000-watt station (KCBS, in San Francisco). The authors describe Herrold's story as one of early triumph and final failure, the story of an "everyman," an individual who was an innovator but never received recognition for his work and, as a result, died penniless. His most important work was done between 1912 and 1917, and following World War I, he received a license and operated station KQW for several years before running out of money. Herrold then worked as a radio time salesman, an audiovisual technician for a high school, and a janitor at a local naval facility, still telling anyone who would listen to him that he was the father of radio. The authors also consider some other early inventors, and the directions that their work took.

Guglielmo Marconi

Guglielmo Marconi PDF Author: Victoria Sherrow
Publisher: Enslow Publishing
ISBN: 9780766022805
Category : Inventors
Languages : en
Pages : 0

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Book Description
Guglielmo Marconi is one of the most important inventors of the modern age. Prior to Marconi's work, telegraph signals had to be transmitted through electric wires, but in 1895, Marconi successfully sent the first telegraph signals through the air. In 1901, Marconi transmitted the first wireless communication across the Atlantic Ocean. For his groundbreaking work with wireless transmissions, Marconi was awarded the Nobel Prize for physics in 1909. In addition to the development of radio, Marconi would also do pioneering work with short waves and microwaves. Marconi was born in Bologna, Italy. As a child, Marconi demonstrated a strong interest in science. Although he failed the University of Bologna entrance exam, he decided to continue pursuing scientific studies on his own. In addition to the Nobel Prize he later earned, Marconi also won many other honors for his revolutionary work in electronic communication. Book jacket.

Marconi

Marconi PDF Author: Marc Raboy
Publisher: Oxford University Press
ISBN: 0199313598
Category : Technology & Engineering
Languages : en
Pages : 888

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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.

History of Wireless

History of Wireless PDF Author: T. K. Sarkar
Publisher: John Wiley & Sons
ISBN: 0471718149
Category : Technology & Engineering
Languages : en
Pages : 692

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Book Description
Important new insights into how various components and systems evolved Premised on the idea that one cannot know a science without knowing its history, History of Wireless offers a lively new treatment that introduces previously unacknowledged pioneers and developments, setting a new standard for understanding the evolution of this important technology. Starting with the background-magnetism, electricity, light, and Maxwell's Electromagnetic Theory-this book offers new insights into the initial theory and experimental exploration of wireless. In addition to the well-known contributions of Maxwell, Hertz, and Marconi, it examines work done by Heaviside, Tesla, and passionate amateurs such as the Kentucky melon farmer Nathan Stubblefield and the unsung hero Antonio Meucci. Looking at the story from mathematical, physics, technical, and other perspectives, the clearly written text describes the development of wireless within a vivid scientific milieu. History of Wireless also goes into other key areas, including: The work of J. C. Bose and J. A. Fleming German, Japanese, and Soviet contributions to physics and applications of electromagnetic oscillations and waves Wireless telegraphic and telephonic development and attempts to achieve transatlantic wireless communications Wireless telegraphy in South Africa in the early twentieth century Antenna development in Japan: past and present Soviet quasi-optics at near-mm and sub-mm wavelengths The evolution of electromagnetic waveguides The history of phased array antennas Augmenting the typical, Marconi-centered approach, History of Wireless fills in the conventionally accepted story with attention to more specific, less-known discoveries and individuals, and challenges traditional assumptions about the origins and growth of wireless. This allows for a more comprehensive understanding of how various components and systems evolved. Written in a clear tone with a broad scientific audience in mind, this exciting and thorough treatment is sure to become a classic in the field.

Early FM Radio

Early FM Radio PDF Author: Gary L. Frost
Publisher: JHU Press
ISBN: 0801899133
Category : Technology & Engineering
Languages : en
Pages : 207

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Book Description
The commonly accepted history of FM radio is one of the twentieth century’s iconic sagas of invention, heroism, and tragedy. Edwin Howard Armstrong created a system of wideband frequency-modulation radio in 1933. The Radio Corporation of America (RCA), convinced that Armstrong’s system threatened its AM empire, failed to develop the new technology and refused to pay Armstrong royalties. Armstrong sued the company at great personal cost. He died despondent, exhausted, and broke. But this account, according to Gary L. Frost, ignores the contributions of scores of other individuals who were involved in the decades-long struggle to realize the potential of FM radio. The first scholar to fully examine recently uncovered evidence from the Armstrong v. RCA lawsuit, Frost offers a thorough revision of the FM story. Frost’s balanced, contextualized approach provides a much-needed corrective to previous accounts. Navigating deftly through the details of a complicated story, he examines the motivations and interactions of the three communities most intimately involved in the development of the technology—Progressive-era amateur radio operators, RCA and Westinghouse engineers, and early FM broadcasters. In the process, Frost demonstrates the tension between competition and collaboration that goes hand in hand with the emergence and refinement of new technologies. Frost's study reconsiders both the social construction of FM radio and the process of technological evolution. Historians of technology, communication, and media will welcome this important reexamination of the canonic story of early FM radio.

Tesla

Tesla PDF Author: Margaret Cheney
Publisher: Simon and Schuster
ISBN: 1451674864
Category : Biography & Autobiography
Languages : en
Pages : 422

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Book Description
In this “informative and delightful” (American Scientist) biography, Margaret Cheney explores the brilliant and prescient mind of Nikola Tesla, one of the twentieth century’s greatest scientists and inventors. In Tesla: Man Out of Time, Margaret Cheney explores the brilliant and prescient mind of one of the twentieth century's greatest scientists and inventors. Called a madman by his enemies, a genius by others, and an enigma by nearly everyone, Nikola Tesla was, without a doubt, a trailblazing inventor who created astonishing, sometimes world-transforming devices that were virtually without theoretical precedent. Tesla not only discovered the rotating magnetic field -- the basis of most alternating-current machinery -- but also introduced us to the fundamentals of robotics, computers, and missile science. Almost supernaturally gifted, unfailingly flamboyant and neurotic, Tesla was troubled by an array of compulsions and phobias and was fond of extravagant, visionary experimentations. He was also a popular man-about-town, admired by men as diverse as Mark Twain and George Westinghouse, and adored by scores of society beauties. From Tesla's childhood in Yugoslavia to his death in New York in the 1940s, Cheney paints a compelling human portrait and chronicles a lifetime of discoveries that radically altered -- and continue to alter -- the world in which we live. Tesla: Man Out of Time is an in-depth look at the seminal accomplishments of a scientific wizard and a thoughtful examination of the obsessions and eccentricities of the man behind the science.

Raised on Radio

Raised on Radio PDF Author: Gerald Nachman
Publisher: Univ of California Press
ISBN: 9780520223035
Category : Drama
Languages : en
Pages : 548

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Book Description
Radio broadcasting United States History.

The Portable Radio in American Life

The Portable Radio in American Life PDF Author: Michael Brian Schiffer
Publisher: University of Arizona Press
ISBN: 0816547688
Category : Science
Languages : en
Pages : 281

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Book Description
In this fascinating history of the portable radio, Michael Schiffer shows how this invention is as American as apple pie. Along the way, he tells how technology has responded to consumer preference, how corporate "cryptohistory" has made us believe the Japanese invented the radio, and how the spread of the portable radio mirrors that of other technologies. More than 400 photographs make this book both a definitive resource and a delightful browse.

The Race for Wireless

The Race for Wireless PDF Author: Gregory Malanowski
Publisher: AuthorHouse
ISBN: 1463437501
Category : Education
Languages : en
Pages : 151

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Book Description
The book is not only a history of development of wireless communication, or the radio, as it was later named. It also presents portraits of fascinating visionaries, experimenters and scientists and the stories of their successes and failures. The history begins as a race between inventors, but later becames a race chiefly between corporations. Even today, there are a great number of contradictory opinions and common beliefs regarding the fatherhood of the wireless. At the end of the 19th and the beginning of the 20th centuries, the exchange of information was slow and unreliable. Many talented individuals worked concurrently in different parts of the world, trying to develop the same wireless apparatus and not knowing that they already had competitors. Sometimes, inflated egos undermined their success. Some of the inventors lacked integrity. Legal battles ensued. So, who was the first at the finish line? To determine who was the winner of the race for wireless, or who can be named the "father of the wireless", substantial amounts of historical and political background as well as a thorough analysis of inventions are included in this book. The story is based on published memoirs and papers, encyclopedias, and countless historical and technical materials in the public domain. In many cases it was necessary to filter out the emotional biases (of traditional or national origin) of the source material and to seek the correct chronology of discoveries. The author uses published patents - their dates of issue, technical claims and drawings - as the ultimate source of judgment. In the appendix, "The Vacuum Tube Sound", the author compares the quality of sound amplified by a vacuum tube amplifier with the quality of sound amplified by modern semiconductor amplifiers. What are the differences, if any? The answer may surprise you.