Jonathan Zenneck 1871
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AWAR Volume 24.Indb
THE AWA REVIEW Volume 24 2011 Published by THE ANTIQUE WIRELESS ASSOCIATION PO Box 421, Bloomfi eld, NY 14469-0421 http://www.antiquewireless.org i Devoted to research and documentation of the history of wireless communications. Antique Wireless Association P.O. Box 421 Bloomfi eld, New York 14469-0421 Founded 1952, Chartered as a non-profi t corporation by the State of New York. http://www.antiquewireless.org THE A.W.A. REVIEW EDITOR Robert P. Murray, Ph.D. Vancouver, BC, Canada ASSOCIATE EDITORS Erich Brueschke, BSEE, MD, KC9ACE David Bart, BA, MBA, KB9YPD FORMER EDITORS Robert M. Morris W2LV, (silent key) William B. Fizette, Ph.D., W2GDB Ludwell A. Sibley, KB2EVN Thomas B. Perera, Ph.D., W1TP Brian C. Belanger, Ph.D. OFFICERS OF THE ANTIQUE WIRELESS ASSOCIATION DIRECTOR: Tom Peterson, Jr. DEPUTY DIRECTOR: Robert Hobday, N2EVG SECRETARY: Dr. William Hopkins, AA2YV TREASURER: Stan Avery, WM3D AWA MUSEUM CURATOR: Bruce Roloson W2BDR 2011 by the Antique Wireless Association ISBN 0-9741994-8-6 Cover image is of Ms. Kathleen Parkin of San Rafael, California, shown as the cover-girl of the Electrical Experimenter, October 1916. She held both a commercial and an amateur license at 16 years of age. All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without the prior written permission of the copyright owner. Printed in Canada by Friesens Corporation Altona, MB ii Table of Contents Volume 24, 2011 Foreword ....................................................................... iv The History of Japanese Radio (1925 - 1945) Tadanobu Okabe .................................................................1 Henry Clifford - Telegraph Engineer and Artist Bill Burns ...................................................................... -
Ferdinand Braun - a Pioneer in Wireless Technology and Electronics
See discussions, stats, and author profiles for this publication at: https://www.researchgate.net/publication/230874467 Ferdinand Braun - A Pioneer in Wireless Technology and Electronics Chapter · January 2012 CITATIONS READS 0 441 1 author: Peter Russer Technische Universität München 1,075 PUBLICATIONS 8,096 CITATIONS SEE PROFILE Some of the authors of this publication are also working on these related projects: Advanced Characterisation and Classification of Radiated Emissions in Densely Integrated Technologies – (ACCREDIT) View project Increasing the upper frequency limit of SAW filters and oscillators View project All content following this page was uploaded by Peter Russer on 15 May 2014. The user has requested enhancement of the downloaded file. FERDINAND Braun. A PIONEER IN WIRELESS technology AND electronics Ferdinand Braun – A pioneer in wireless technologY and electronics Peter Russer n 1909 Ferdinand Braun and Guglielmo Marconi jointly received the Nobel Prize for their groundbreaking contributions to wireless telegraphy. Beyond numerous important contributions to wireless transmitter and receiver cir- cuit technology Ferdinand Braun has given other epoch-making contribu- tions to electronics and wireless technology, including the discovery of the rectifying properties of a metal-semiconductor junction in 1874, the invention of the Icathode ray tube (Braunsche Röhre) in 1897, and precise voltage measurement in- struments. He has given the impact to the foundation of “Hartmann & Braun” and “Telefunken” and had a considerable influence on the industrial development of Ger- man wireless technology. Introduction Ferdinand Braun (1850-1918) has been an extraordinary influential pioneer in wire- less technology who has had a strong impact on the industrial development of that field. -
An Historical Survey on Light Technologies
Received March 31, 2018, accepted May 1, 2018, date of publication May 8, 2018, date of current version June 5, 2018. Digital Object Identifier 10.1109/ACCESS.2018.2834432 An Historical Survey on Light Technologies MASSIMO GUARNIERI , (Member, IEEE) Department of Industrial Engineering, University of Padua, 35131 Padova, Italy e-mail: [email protected] ABSTRACT Following the celebration of the International Year of Light and Light-based Technologies in 2015, this paper presents a survey of the exploitation of light throughout our history. Human beings started using light far into the Stone Age, in order to meet immediate needs, and widened its used when ancient civilizations developed. Other practical uses were conceived during the Middle Ages, some of which had a deep impact on social life. Nevertheless, it was after the Scientific Revolution and, to a wider extent, with the Industrial Revolution, that more devices were developed. The advancement of chemistry and electricity provided the ground and the tools for inventing a number of light-related devices, from photography to chemical and electrical lighting technologies. The deeper and broader scientific advancements of the 20th century, throughout wave and quanta paradigms and the research on the interactions with matter at the sub-atomic level, have provided the knowledge for a much broader exploitation of light in several different fields, leading to the present technological domains of optoelectronics and photoelectronics, including cinema, image processing, lasers, photovoltaic cells, and optical discs. The recent success of fiber optics, white LEDs, and holography, evidence how vastly and deeply the interaction between light and man is still growing. -
The Chaning Face of Science and Technology in the Ehrensaal of The
PREPRINT 13 Lisa Kirch The Changing Face of Science and Technology in the Ehrensaal of the Deutsches Museum, 1903–1955 The Changing Face of Science and Technology in the Ehrensaal of the Deutsches Museum, 1903–1955 Deutsches Museum Preprint Edited by Deutsches Museum Issue 13 Lisa Kirch received her Ph. D. in art history (University of Texas at Austin, 2003) with a dissertation on the portraits of Elector Palatine Ottheinrich (1502–1559). In collaboration with Andreas Kühne (LMU) she has published articles on portraits of the Herschel family and on the presentation and conservation of modern art. Her publications on visual and material culture in early-modern Germany appear under Miriam Hall Kirch. She is Associate Professor in the Art Department of the University of North Alabama. Lisa Kirch The Changing Face of Science and Technology in the Ehrensaal of the Deutsches Museum, 1903–1955 Bibliografische Information der Deutschen Nationalbibliothek Die Deutsche Nationalbibliothek verzeichnet diese Publikation in der Deutschen Nationalbibliografie; detaillierte bibliografische Daten sind im Internet unter http://dnb.d-nb.de abrufbar. Lisa Kirch, “The Changing Face of Science and Technology in the Ehrensaal of the Deutsches Museum, 1903–1955” © 2017 of the present edition: MV-Wissenschaft MV-Wissenschaft is published by readbox publishing GmbH, Dortmund http://unipress.readbox.net/ © Deutsches Museum Verlag All rights reserved Editor: Dorothee Messerschmid Layout and Design: Jutta Esser Cover illustration: Draft of the Lilienthal glider, 1895 -
Karl Rawer's Life and the History of IRI
Available online at www.sciencedirect.com ADVANCES IN SCIENCE d EDIRECT@ SPACE RESEARCH (a COSPAR publication) ELSEVIER Advances in Space Research 34 (2004) 1845-1850 www.elsevier.com/locate/asr Karl Rawer's life and the history of IRI Bodo W. Reinisch a,*, Dieter Bilitza b a Department of Environmental Earth and Atmospheric Sciences, Center for Atmospheric Research, University of Massachusetts Lowell, 600 Suffolk Street, Lowell, MA 01854, USA b Raytheon ITSSISSD00, GSFC, Code 632, Greenbelt, MD 20771, USA Received 12 September 2004; accepted 13 September 2004 Abstract This laudation is given in honor of the 90th birthday of Prof. Karl Rawer that coincides with the 35th anniversary of the Inter- national Reference Ionosphere (IRI). The ionosphere was discovered during Karl Rawer's life, and he has dedicated his life to the exploration of this part of Earth's environment. The horrible events of world wars I and II shaped his early life, but they also launched his career as one of the eminent geophysical scientists of the twentieth century. The paper looks back at Karl's life and the 35 years of research and development in the framework of the IRI project. K. Rawer initiated this international modeling effort and was the first chairman of the IRI Working Group. IRI is a joint project of the Committee on Space Research (COSPAR) and the International Union of Radio science (URSI) that has the goal to establish an international standard model of the ionospheric densities temperatures, and drifts. © 2004 COSPAR. Published by Elsevier Ltd. All rights reserved. Keywords: Karl Rawer; International Reference Ionosphere; Ionosphere 1. -
Karl Rawer's Life and Scientific Achievements
Advances in Radio Science (2004) 2: 263–264 © Copernicus GmbH 2004 Advances in Radio Science Karl Rawer’s life and scientific achievements∗ B. W. Reinisch Environmental, Earth and Atmospheric Sciences Department, Center for Atmospheric Research, University of Massachusetts Lowell, 600 Suffolk St., Lowell, MA 01854, USA ∗Dedicated to Prof. Dr. K. Rawer on the occasion of his 90th birthday. Abstract. This laudation is given in honor of the 90th birth- Rocard to establish an ionospheric prediction service in the day of Prof. Karl Rawer. The ionosphere was discovered French Zone. A new ionospheric institute came to life first in during Karl Rawer’s life, and he has dedicated his life to the Neuershausen, then in Breisach (Baden-Wurttemberg),¨ i.e. exploration of this part of Earth’s environment. The horrible close to Karl’s academic origins in Freiburg and to his na- events of world wars I and II shaped his early life, but they tive Saarland. I first met Professor Rawer in 1960 when he also launched his career as one of the eminent geophysical accepted me as a graduate student at the “Ionospharen¨ Insti- scientists of the twentieth century. tut Breisach”. Other graduate students at the time included Rolf Kraft, Jurgen¨ Buchau,¨ Fritz Fischer, Frank Ade, Ger- hard Schmitdke, Christian Munter,¨ and Hans Bohnel.¨ A life long friendship connected all of us until today, most of us 1 Introduction – the early years now retired. Sadly Fritz and Hans died early, and Jurgen,¨ who together with me emigrated from Germany to the USA, “Actually, it was chance and circumstances that gave me the died 10 years ago. -
Klaus Staubermann
00frontmatter.qxd 6/13/09 9:00 PM Page i Illuminating Instruments 00frontmatter.qxd 6/13/09 9:00 PM Page ii 00frontmatter.qxd 6/13/09 9:00 PM Page iii Illuminating Instruments Artefacts: STUDIES IN THE HISTORY OF SCIENCE AND TECHNOLOGY, VOLUME 7 Edited by Peter Morris and Klaus Staubermann Series Editors Robert Bud, Science Museum, London Bernard Finn, Smithsonian Institution Helmuth Trischler, Deutsches Museum, Munich WASHINGTON, D.C. 2009 00frontmatter.qxd 6/13/09 9:00 PM Page iv 00frontmatter.qxd 6/13/09 9:00 PM Page v he series “Artefacts: Studies in the History of Science and Technology” was established Tin 1996 under joint sponsorship by the Deutsches Museum (Munich), the Science Museum (London), and the Smithsonian Institution (Washington, DC). Subsequent spon- soring museums include: Canada Science and Technology Museum, Istituto e Museo Nazionale di Storia della Scienza, Medicinsk Museion Kobenhavns Universitet, MIT Museum, Musée des Arts et Métiers, Museum Boerhaave, Národní Technické Museum, Prague, National Museum of Scotland, Norsk Teknisk Museum, Országos Mıszaki Múzeum Tanulmánytára (Hungarian Museum for S&T), Technisches Museum Wien, Tekniska Museet–Stockholm, The Bakken, Whipple Museum of the History of Science. Editorial Advisory Board Robert Anderson, Cambridge University Jim Bennett, Museum of the History of Science, University of Oxford Randall Brooks, Canada Science and Technology Museum Ruth Cowan, University of Pennsylvania Robert Friedel, University of Maryland Sungook Hong, Seoul National University David Hounshell, -
Physical Realization of Non-Radiative Wireless Power Transmission Using Zenneck Waves
Supplementary Material for Physical Realization of Non-Radiative Wireless Power Transmission Using Zenneck Waves Sai Kiran Oruganti,1 Jagannath Malik,1 Jongwon Lee,1 Woojin Park,1 Bonyoung Lee,1 Seoktae Seo,1 Dipra Paul,1 Haksun Kim,1 Thomas Thundat,2 and Franklin Bien.1∗ January 3, 2019 1 Electrical Length: Half Wave Helical Transformer Throughout 2015-18, authors conducted the experiments to study the voltage oscillation across the GBI resonator system. One such experiment carrying out power transfer across 80 mm metal wall can be seen in fig. S 1. This experiment uses the ground plate and wire arrangement to sustain a meaningful voltage oscillation across the terminals of the load (40 watts halogen). Based on the experimental findings shown in fig. S 1, the authors tried to replace the equivalent RLC lumped elements(unsuccessfully so). The reasons behind the failure of RLC lumped elements based counterpoise were carefully and qualitatively investigated, through a series of experiments. It was observed that the planar structure of the receiver was unable to sustain a significant value of voltage and current. As shown in Fig. S 2 , the gap between the mesh and ground layer is g=1.5 mm. At a target frequency of 27MHz, g << λ/4. The largest dimension of the transceiver system is Ax = 150 mm, which is << λ/2π = 1767mm at target frequency of 27MHz. Thus, the proposed receiver in its present form is electrically smallS1,S2. It has been observed that the dimensions of the lumped RLC elements become the part of the over all electrical length of the antenna beyond 900MHz S3,S4. -
Michael Eckert Science, Life and Turbulent Times –
Michael Eckert Arnold Sommerfeld Science, Life and Turbulent Times – Michael Eckert Arnold Sommerfeld. Science, Life and Turbulent Times Michael Eckert translated by Tom Artin Arnold Sommerfeld Science, Life and Turbulent Times 1868–1951 Michael Eckert Deutsches Museum Munich , Germany Translation of Arnold Sommerfeld: Atomphysiker und Kulturbote 1868–1951, originally published in German by Wallstein Verlag, Göttingen ISBN ---- ISBN ---- (eBook) DOI ./---- Springer New York Heidelberg Dordrecht London Library of Congress Control Number: © Springer Science+Business Media New York Th is work is subject to copyright. All rights are reserved by the Publisher, whether the whole or part of the material is concerned, specifi cally the rights of translation, reprinting, reuse of illustrations, recitation, broadcasting, reproduction on microfi lms or in any other physical way, and transmission or information storage and retrieval, electronic adaptation, computer software, or by similar or dissimilar methodology now known or hereafter developed. Exempted from this legal reservation are brief excerpts in connection with reviews or scholarly analysis or material supplied specifi cally for the purpose of being entered and executed on a computer system, for exclusive use by the purchaser of the work. Duplication of this publication or parts thereof is permitted only under the provisions of the Copyright Law of the Publisher’s location, in its current version, and permission for use must always be obtained from Springer. Permissions for use may be obtained through RightsLink at the Copyright Clearance Center. Violations are liable to prosecution under the respective Copyright Law. Th e use of general descriptive names, registered names, trademarks, service marks, etc. in this publication does not imply, even in the absence of a specifi c statement, that such names are exempt from the relevant protective laws and regulations and therefore free for general use. -
The AWA Review
The AWA Review Volume 27 • 2014 Published by THE ANTIQUE WIRELESS ASSOCIATION PO Box 421, Bloomfield, NY 14469-0421 http://www.antiquewireless.org Devoted to research and documentation of the history of wireless communications. THE ANTIQUE WIRELESS ASSOCIATION PO Box 421, Bloomfield, NY 14469-0421 http://www.antiquewireless.org Founded 1952, Chartered as a non-profit corporation by the State of New York. The AWA Review EDITOR Robert P. Murray, Ph.D. Vancouver, BC, Canada ASSOCIATE EDITORS Erich Brueschke, BSEE, MD, KC9ACE David Bart, BA, MBA, KB9YPD, Julia Bart, BA, MA FORMER EDITORS Robert M. Morris W2LV, (silent key) William B. Fizette, Ph.D., W2GDB Ludwell A. Sibley, KB2EVN Thomas B. Perera, Ph.D., W1TP Brian C. Belanger, Ph.D. OFFICERS OF THE ANTIQUE WIRELESS ASSOCIATION DIRECTOR: Tom Peterson, Jr. DEPUTY DIRECTOR: Robert Hobday, N2EVG SECRETARY: William Hopkins, Ph.D., AA2YV TREASURER: Stan Avery, WM3D AWA MUSEUM CURATOR: Bruce Roloson, W2BDR 2014 by the Antique Wireless Association, ISBN 978-0-9890350-1-9 Cover images: Front: Hallicrafters 5-T Sky Buddy with Boy, and without Boy. Back: Parts of the 5-T with Boy dial (Fig. 7 in article), and Hallicrafters 5-19 Sky Buddy. All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form or by any means, electronic, mechanical, photocopy- ing, recording, or otherwise, without the prior written permission of the copyright owner. Book design and layout by Fiona Raven, Vancouver, BC, Canada Printed in Canada by Friesens, Altona, MB Contents ■ Volume 27, 2014 Foreword .................................................... iv W. -
Historical Group Occasional Paper 7 Nitrogen, Novel High-Pressure
Historical Group OCCASIONAL PAPERS No 7 Nitrogen, Novel High-Pressure Chemistry, and the German War Effort (1900-1918) Anthony S. Travis (Sidney M. Edelstein Center for the History and Philosophy of Science, Technology and Medicine, The Hebrew University of Jerusalem) The Seventh Wheeler Lecture Royal Society of Chemistry, 22 October 2014 April 2015 Introduction “The story still is told of a Minister, a member of the War Cabinet, who, finding the conversation at a certain dinner turning to the sinister menace of the submarine campaign, then at its height, and its effects especially on the Chile communications, turned to his neighbour with the enquiry: ‘Tell me, what is this nitrate they are all making such a fuss about?’” Stanley I. Levy, “The Status of Chemists and Chemistry”, in Chemistry and Industry, no. 11 (14 March 1924): 285-6. Apocryphal or not, this extract from the correspondence columns of the then new British journal Chemistry and Industry in 1924 exposes the apparent general ignorance in Britain, and also for a time in Germany, of a crucial and even desperate episode in the conduct of what became known as the First Great War. “Nitrate”, a commodity essential to the production of modern explosives employed in warfare, mainly aromatic nitro compounds such as TNT and picric acid, was common currency to all belligerents. Nevertheless outside of scientific and industrial circles the critical roles of what was in fact Chilean nitrate (Chilean saltpetre, or sodium nitrate), extracted from the mineral caliche, and the other nitrogen-containing chemicals of commerce, such as calcium cyanamide and ammonia, as sources of vast destructive power, was generally given little, if any, prominence at the start of the war in early August 1914. -
Sparks to Signals: Literature, Science, and Wireless Technology, 1800–1930
Sparks to Signals: Literature, Science, and Wireless Technology, 1800–1930 by Erik Christopher Born A dissertation submitted in partial satisfaction of the Requirements for the degree of Doctor of Philosophy in German and Medieval Studies and the Designated Emphasis in Film Studies in the Graduate Division of the University of California, Berkeley Committee in charge: Professor Niklaus Largier, chair Professor Anton Kaes Professor Mary Ann Doane Spring 2016 Sparks to Signals: Literature, Science, and Wireless Technology, 1800–1930 © 2016 by Erik Christopher Born Abstract Sparks to Signals: Literature, Science, and Wireless Technology, 1800–1930 by Erik Christopher Born Doctor of Philosophy in German and Medieval Studies Designated Emphasis in Film Studies University of California, Berkeley Professor Niklaus Largier, Chair “Going wireless” involves not only the elimination of wires but also the production of electromagnetic waves, a realization that had far-reaching implications for the cultural logics of German modernity. As a media archaeology of wirelessness, this dissertation situates the “discovery” of electromagnetic radiation and the “invention” of wireless transmission in a richer field of scientific, experimental, and aesthetic relations during the early and pre-history of national broadcasting. Before wireless transmission came to be synonymous with the mass distribution medium of radio or even the long-distance communication medium of wireless telegraphy, it was at the center of speculation about a variety of possible wireless