Just Who Did Invent Radio?
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The Stage Is Set
The Stage Is Set: Developments before 1900 Leading to Practical Wireless Communication Darrel T. Emerson National Radio Astronomy Observatory1, 949 N. Cherry Avenue, Tucson, AZ 85721 In 1909, Guglielmo Marconi and Carl Ferdinand Braun were awarded the Nobel Prize in Physics "in recognition of their contributions to the development of wireless telegraphy." In the Nobel Prize Presentation Speech by the President of the Royal Swedish Academy of Sciences [1], tribute was first paid to the earlier theorists and experimentalists. “It was Faraday with his unique penetrating power of mind, who first suspected a close connection between the phenomena of light and electricity, and it was Maxwell who transformed his bold concepts and thoughts into mathematical language, and finally, it was Hertz who through his classical experiments showed that the new ideas as to the nature of electricity and light had a real basis in fact.” These and many other scientists set the stage for the rapid development of wireless communication starting in the last decade of the 19th century. I. INTRODUCTION A key factor in the development of wireless communication, as opposed to pure research into the science of electromagnetic waves and phenomena, was simply the motivation to make it work. More than anyone else, Marconi was to provide that. However, for the possibility of wireless communication to be treated as a serious possibility in the first place and for it to be able to develop, there had to be an adequate theoretical and technological background. Electromagnetic theory, itself based on earlier experiment and theory, had to be sufficiently developed that 1. -
The Telephone and Its Several Inventors
The History of Telecommunications The Telephone and its Several Inventors by Wim van Etten 1/36 Outline 1. Introduction 2. Bell and his invention 3. Bell Telephone Company (BTC) 4. Lawsuits 5. Developments in Europe and the Netherlands 6. Telephone sets 7. Telephone cables 8. Telephone switching 9. Liberalization 10. Conclusion 2/36 Reis • German physicist and school master • 1861: vibrating membrane touched needle; reproduction of sound by needle connected to electromagnet hitting wooden box • several great scientists witnessed his results • transmission of articulated speech could not be demonstrated in court • submitted publication to Annalen der Physik: refused • later on he was invited to publish; then he refused • ended his physical experiments as a poor, disappointed man Johann Philipp Reis 1834-1874 • invention not patented 3/36 The telephone patent 1876: February 14, Alexander Graham Bell applies patent “Improvement in Telegraphy”; patented March 7, 1876 Most valuable patent ever issued ! 4/36 Bell’s first experiments 5/36 Alexander Graham Bell • born in Scotland 1847 • father, grandfather and brother had all been associated with work on elocution and speech • his father developed a system of “Visible Speech” • was an expert in learning deaf-mute to “speak” • met Wheatstone and Helmholtz • when 2 brothers died of tuberculosis parents emigrated to Canada • 1873: professor of Vocal Physiology and Elocution at the Boston University School of Oratory: US citizen Alexander Graham Bell • 1875: started experimenting with “musical” telegraphy (1847-1922) • had a vision to transmit voice over telegraph wires 6/36 Bell (continued) • left Boston University to spent more time to experiments • 2 important deaf-mute pupils left: Georgie Sanders and Mabel Hubbard • used basement of Sanders’ house for experiments • Sanders and Hubbard gave financial support, provided he would abandon telephone experiments • Henry encouraged to go on with it • Thomas Watson became his assistant • March 10, 1876: “Mr. -
Screen Genealogies Screen Genealogies Mediamatters
media Screen Genealogies matters From Optical Device to Environmental Medium edited by craig buckley, Amsterdam University rüdiger campe, Press francesco casetti Screen Genealogies MediaMatters MediaMatters is an international book series published by Amsterdam University Press on current debates about media technology and its extended practices (cultural, social, political, spatial, aesthetic, artistic). The series focuses on critical analysis and theory, exploring the entanglements of materiality and performativity in ‘old’ and ‘new’ media and seeks contributions that engage with today’s (digital) media culture. For more information about the series see: www.aup.nl Screen Genealogies From Optical Device to Environmental Medium Edited by Craig Buckley, Rüdiger Campe, and Francesco Casetti Amsterdam University Press The publication of this book is made possible by award from the Andrew W. Mellon Foundation, and from Yale University’s Frederick W. Hilles Fund. Cover illustration: Thomas Wilfred, Opus 161 (1966). Digital still image of an analog time- based Lumia work. Photo: Rebecca Vera-Martinez. Carol and Eugene Epstein Collection. Cover design: Suzan Beijer Lay-out: Crius Group, Hulshout isbn 978 94 6372 900 0 e-isbn 978 90 4854 395 3 doi 10.5117/9789463729000 nur 670 Creative Commons License CC BY NC ND (http://creativecommons.org/licenses/by-nc-nd/3.0) All authors / Amsterdam University Press B.V., Amsterdam 2019 Some rights reserved. Without limiting the rights under copyright reserved above, any part of this book may be reproduced, stored in or introduced into a retrieval system, or transmitted, in any form or by any means (electronic, mechanical, photocopying, recording or otherwise). Every effort has been made to obtain permission to use all copyrighted illustrations reproduced in this book. -
Who Invented the Telephone?: Lawyers, Patents, and the Judgments of History
Who Invented the Telephone?: Lawyers, Patents, and the Judgments of History Christopher Beauchamp Technology and Culture, Volume 51, Number 4, October 2010, pp. 854-878 (Article) Published by The Johns Hopkins University Press DOI: 10.1353/tech.2010.0038 For additional information about this article http://muse.jhu.edu/journals/tech/summary/v051/51.4.beauchamp.html Access Provided by Princeton University at 02/10/13 1:14PM GMT 05_51.4beauchamp 854–78:03_49.3dobraszczyk 568– 10/31/10 11:04 AM Page 854 Who Invented the Telephone? Lawyers, Patents, and the Judgments of History CHRISTOPHERBEAUCHAMP Who invented the telephone? In the United States, this question has a widely known answer. Alexander Graham Bell routinely ranks among the hundred “greatest” or “most influential” Americans, whether chosen by historians or internet polls.1 His cry of “Mr. Watson—come here—I want to see you,”al- though often misquoted, is one of the best-known exclamations in Amer- ican history.2 More than one hundred and thirty years after the event, Bell and Watson’s first telephone call remains a classroom staple: a standard de- vice for teaching Americans about the nation’s inventive past, and even for placing technological change at the center of mainstream history.3 Christopher Beauchamp is the Sharswood Fellow in Law and History at the University of Pennsylvania Law School. In an earlier form, this essay received the Levinson Prize of the Society for the History of Technology. The author is grateful for the advice of Anisha Dasgupta, Martin Daunton, Richard John, Robert MacDougall, Christine MacLeod, John Staudenmaier, and four anonymous referees for T&C. -
Media Technology and Society
MEDIA TECHNOLOGY AND SOCIETY Media Technology and Society offers a comprehensive account of the history of communications technologies, from the telegraph to the Internet. Winston argues that the development of new media, from the telephone to computers, satellite, camcorders and CD-ROM, is the product of a constant play-off between social necessity and suppression: the unwritten ‘law’ by which new technologies are introduced into society. Winston’s fascinating account challenges the concept of a ‘revolution’ in communications technology by highlighting the long histories of such developments. The fax was introduced in 1847. The idea of television was patented in 1884. Digitalisation was demonstrated in 1938. Even the concept of the ‘web’ dates back to 1945. Winston examines why some prototypes are abandoned, and why many ‘inventions’ are created simultaneously by innovators unaware of each other’s existence, and shows how new industries develop around these inventions, providing media products for a mass audience. Challenging the popular myth of a present-day ‘Information Revolution’, Media Technology and Society is essential reading for anyone interested in the social impact of technological change. Brian Winston is Head of the School of Communication, Design and Media at the University of Westminster. He has been Dean of the College of Communications at the Pennsylvania State University, Chair of Cinema Studies at New York University and Founding Research Director of the Glasgow University Media Group. His books include Claiming the Real (1995). As a television professional, he has worked on World in Action and has an Emmy for documentary script-writing. MEDIA TECHNOLOGY AND SOCIETY A HISTORY: FROM THE TELEGRAPH TO THE INTERNET BrianWinston London and New York First published 1998 by Routledge 11 New Fetter Lane, London EC4P 4EE Simultaneously published in the USA and Canada by Routledge 29 West 35th Street, New York, NY 10001 Routledge is an imprint of the Taylor & Francis Group This edition published in the Taylor & Francis e-Library, 2003. -
37 AWA News Jan 2009
AWA Newsletter Issue 37 January 2009 Something To Look Forward To: Antique Wireless Here’s to the start of a them for target practice. them going. But then that’s Association of New Year and one that we May you be wise enough what friends are for. Need hope will be fruitful for Southern Africa to know that you cannot to move your rig, phone a you all in terms of being pick up an old boatanchor friend. Need to repair your healthy, wealthy and wise. and move it around at rig, phone a friend. I cannot understand why your leisure. (That helps it is that wisdom is always So it would seem then that Inside this issue: in the health side of at the bottom of the list one needs to have all three things). here, as I would have of these criteria finely tuned CW Net 2 thought it should be given May you be wise enough and applied in good meas- a bit more of a priority. to remember that you are ure in order to be a collector playing with “voltage”, of boatanchors. May you be wise enough SSB Activity 2 and lots of it. (Could also to discern the difference May your year be filled with be detrimental to your between a good boatan- the dull glow of valve radio, health). the pleasant crackle of AM AM 2 chor and a modern plug and play. I am sure there could be and the key clicks of CW. many more pearls of wis- (Oh all right, and the ducky May you be wise enough USA Amateur Radio 3-6 dom that one could apply sound of SSB when you to see the potential in re- History to life with your boatan- slightly off frequency). -
NATIONAL HISTORIC LANDMARK NOMINATION CAMP EVANS Page 1 1. NAME of PROPERTY Historic Name
NATIONAL HISTORIC LANDMARK NOMINATION NPS Form 10-900 USDI/NPS NRHP Registration Form (Rev. 8-86) OMB No. 1024-0018 CAMP EVANS Page 1 United States Department of the Interior, National Park Service National Register of Historic Places Registration Form 1. NAME OF PROPERTY Historic Name: Camp Evans Other Name/Site Number: U.S. Army Signal Corps Laboratory 2. LOCATION Street & Number: Marconi Road and Monmouth Boulevard Not for publication: N/A City/Town: Wall Township Vicinity: N/A State: New Jersey County: Monmouth Code: 025 Zip Code: 07719 3. CLASSIFICATION Ownership of Property Category of Property Private: Building(s): ___ Public-Local: X District: X_ Public-State: __ Site: ___ Public-Federal: X Structure: ___ Object: ___ Number of Resources within Property Contributing Noncontributing 35 13 buildings sites 1 structures objects 35 14 Total Number of Contributing Resources Previously Listed in the National Register: 51 Name of Related Multiple Property Listing: N/A NPS Form 10-900 USDI/NPS NRHP Registration Form (Rev. 8-86) OMB No. 1024-0018 CAMP EVANS Page 2 United States Department of the Interior, National Park Service National Register of Historic Plaaces Registration Form 4. STATE/FEDERAL AGENCY CERTIFICATION As the designated authority under the National Historic Preservation Act of 1966, as amended, I hereby certify that tthis ____ nomination ____ request for determination of eligibility meets the documentation standards for registering properties in the National Register of Historic Places and meets the procedural and professional requirements set forth in 36 CFR Part 60. In my opinion, the property ____ meets ____ does not meet the Natioonal Register Criteria. -
Our Ever-Evolving Department
Summer 2011 Dear Friends of Tufts Physics & Astronomy, This second edition of our departmental newsletter once again reports an exciting year of transitions and accomplishments. Next year promises to be equally exciting, as the department will welcome two new tenure-track faculty members, Dr. Timothy Atherton in theoretical soft condensed matter physics and Dr. Pierre-Hugues Beauchemin in experimental high energy physics. This newsletter briefly summarizes a few of this year’s highlights. More information can be found on our website, http://ase.tufts.edu/physics. Our Ever-Evolving Department Additions Assistant Professor Anna Sajina received her Ph.D. in astronomy in 2006 from the University of British Columbia, Canada and then worked as a postdoctoral research associate at Caltech and at Haverford College. Her research focuses on extragalactic astronomy with emphasis on infrared and radio observations of extreme starbursts and active galactic nuclei. She has been principal investigator on a number of successful observing programs on competitive telescopes such as the Spitzer Space telescope—one such program included the detection of water ice absorption in a galaxy observed when the Universe was only twenty percent of its current age. To date, she has twenty-seven publications in renowned journals such as the Astrophysical Journal, Astronomy & Astrophysics, and Monthly Notices of the Royal Astronomical Society. She is married and enjoys cooking, movies, and wine. David Hammer, professor of education and physics and co-director of the Tufts Center for Engineering Education and Outreach, returns to Tufts after twelve years with the University of Maryland. His focus is on the learning and teaching of science, mainly physics, for all ages from young children to adults. -
ELECTRIC COMMUNICATION, EXPANSIVE PROTESTANTISM, and GLOBALIZATION in the NINETEENTH CENTURY Jenna S
MAKING A WORLD FOR AMERICA: ELECTRIC COMMUNICATION, EXPANSIVE PROTESTANTISM, AND GLOBALIZATION IN THE NINETEENTH CENTURY Jenna Supp-Montgomerie A dissertation submitted to the faculty of the University of North Carolina at Chapel Hill in partial fulfillment of the requirements for the degree of Ph.D. in the Department of Religious Studies. Chapel Hill 2013 Approved by: Randall Styers Jason Bivins Lawrence Grossberg Christian Lundberg Laurie Maffly-Kipp Grant Wacker ©2013 Jenna Supp-Montgomerie ALL RIGHTS RESERVED iv ABSTRACT JENNA SUPP-MONTGOMERIE: Making a World for America: Electric Communication, Expansive Protestantism, and Globalization in the Nineteenth Century (Under the direction of Randall Styers) On August 12, 1858, the Atlantic Telegraph Cable was laid across the ocean from the west coast of Ireland to Newfoundland, Canada. Claims that distance had been annihilated, peace was imminent, and the world would unite through this new medium for intercontinental communication took America by storm. These promises of unity were particularly strange because the cable failed after only twenty-three days, colonial conflict rocked the world, and the Civil War loomed. This study explores this early form of globalization in America at the advent of the first opportunity for Americans to communicate with Europe in a matter of hours rather than weeks. The “world” is not a given or natural entity. Americans in the mid-nineteenth century produced a modern global imaginary: a constellation of symbols, meanings, practices, and material objects that was structured and sustained in dynamic form by practices of variable affective investment that shaped how Americans conceived of and lived in the world. -
Nikola Tesla's Telautomaton a Dissertation Submitted in Partial Satisfaction Of
UNIVERSITY OF CALIFORNIA Los Angeles I, Robot: Nikola Tesla’s Telautomaton A dissertation submitted in partial satisfaction of the requirements for the degree Doctor of Philosophy in History by Kendall Milar Thompson 2015 © Copyright by Kendall Milar Thompson 2015 ABSTRACT OF THE DISSERTATION I, Robot: Nikola Tesla’s Telautomaton by Kendall Milar Thompson Doctor of Philosophy in History University of California, Los Angeles, 2015 Professor Matthew Norton Wise, Chair In 1898 at the Electrical Exposition in Madison Square Gardens, Nikola Tesla presented his most recent invention, the telautomaton. The device, a radio remote controlled boat, was roughly three feet in length with blinking antennae and was propelled by a small motor and rudder. At the Exposition, Tesla directed audience members to ask the device mathematical questions, and it would respond by blinking the lights on its antennae an appropriate number of times. Tesla’s display gave the illusion of an automaton; moving independently and mysteriously responding to mathematical questions with no apparent operator. Tesla and his telautomaton were at the intersection of major developments of nineteenth and early twentieth century physiology and physics. Thomas Henry Huxley, a physiologist, stimulated a debate among scientists about the extent human automatism. These debates centered on developments in physiology that suggested that there was no place for the soul in the brain; no energy was lost, and even with brain damage humans were able to function. The absence of energy loss created a ii problem in conservation of energy in physics. Some physicists were involved in this debate, attempting to determine whether any energy was lost or added as a result of free will. -
History of Communications Media
History of Communications Media Class 4 1 Telegraph • Theoretically, Telegraphy became possible when Stephen Gray of England in 1729 discovered that electric current could be conveyed along a wire and activate some sort of receptacle at the other end – Variation in the number or duration of the impulses could signal different letters or numbers which could be strung together to form a message • Practically, creating a telegraph system proved possible only when reasonably reliable and economical batteries became available 2 Telegraph • 1800 – Alessandro Volta invented the battery • 1825 – British inventor William Sturgeon invented the electromagnet • 1830 – Joseph Henry used the electromagnet to send a current over one mile of wire to activate another electromagnet to cause a bell to ring • 1837 – British physicists William Cooke and Charles Wheatstone patented the Cooke and Wheatstone telegraph using the principle of electromagnetism 3 Telegraph • What Samuel F.B. Morse and Theodore Vail accomplished was: – A telegraphic system that used Morse Code – A telegraphic receiver that could both mark the dots and dashes onto a moving strip of paper and emit sounds that an experienced telegrapher could decipher at speeds up to 40-50 words a minute 4 While a professor of arts and design at New York University in 1835, Samuel Morse proved that signals could be transmitted by wire. He used pulses of current to deflect an electromagnet, which moved a marker to produce written codes on a strip of paper - the invention of Morse Code . The following year, the device was modified to emboss the paper with dots and dashes. He gave a public demonstration in 1838, but it was not until five years later that Congress (reflecting public apathy) funded $30,000 to construct an experimental telegraph line from Washington to Baltimore, a distance of 40 miles.Theodore Vail later became a moving force in the creation of Western Union. -
The History of Radio in a Few Words
The history of radio in a few words 1835 Invention of the telegraph based on elektormagnet 1836 Samuel Morse presented alphabet in the form of dots and dashes, Morse code 1876 Alexander Graham Bell patents the telephone 1864 Maxwell presupposes the existence of radio waves 1888 Heinrich Hertz demonstrated the existence of radio waves 1866 Mahlon Loomis successfuly demonstrated wireless telegraphy 1895 Guglielmo Marconi sent and received the first radio signal in Italy 1899 Guglielmo Marconi sent the first wireless signal across the British channel 1902 Guglielmo Marconi received the letter "S", which was telegrafed from England to Newfoundland in Canada. This was the first successful transfer of radio-telegraphic messages across the Atlantic 1899 U.S. Army established the first radio communication 1902 Navy introduced a wireless system 1903 Marconi radio station located in Wellfleet, Massachusetts transfered greetings betveen U.S. President Roosevelt and King Edward VII 1905 First employment of the radio for military purposes in the Russian Japanese War 1905 Radio carried reports on the naval battle of Port Arthur between the Russian and the Japanese Navy 1906 The U.S. Weather Service experimented with transmitting information about weather via radio-telegraphy 1906 Lee Deforest invented the electronic tube- triode and Avdion 1907 Lee Deforest invented the detector De Forest was the first to use the word "radio". Inventionof the amplitude modulated (AM) signals was result of De Forest inventions 1906 Reginald A. Fessenden transmitted