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Electrical Engineering
SCIENCE MUSEUM SOUTH KENSINGTON HANDBOOK OF THE COLLECTIONS ILLUSTRATING ELECTRICAL ENGINEERING II. RADIO COMMUNICATION By W. T. O'DEA, B.Sc., A.M.I.E.E. Part I.-History and Development Crown Copyright Reseruea LONDON PUBLISHED BY HIS MAJESTY's STATIONERY OFFICI To be purchued directly from H.M. STATIONERY OFFICI at the following addre:11ea Adutral Houae, Kinpway, London, W.C.z; no, George Street, Edinburgh:& York Street, Manchester 1 ; 1, St, Andrew'• Cretccnr, Cudi.lf So, Chichester Street, Belfa1t or through any Booueller 1934 Price 2s. 6d. net CONTENTS PAGB PREFACE 5 ELECTROMAGNETI<: WAVF13 7 DETECTORS - I I EARLY WIRELESS TELEGRAPHY EXPERIMENTS 17 THE DEVELOPMENT OF WIRELESS TELEGRAPHY - 23 THE THERMIONIC vALVE 38 FuRTHER DEVELOPMENTS IN TRANSMISSION 5 I WIRELESS TELEPHONY REcEIVERS 66 TELEVISION (and Picture Telegraphy) 77 MISCELLANEOUS DEVELOPMENTS (Microphones, Loudspeakers, Measure- ment of Wavelength) 83 REFERENCES - 92 INDEX - 93 LIST OF ILLUSTRATIONS FACING PAGE Fig. I. Brookman's Park twin broadcast transmitters -Frontispiece Fig. 2. Hughes' clockwork transmitter and detector, 1878 8 Fig. 3· Original Hertz Apparatus - Fig. 4· Original Hertz Apparatus - Fig. S· Original Hertz Apparatus - 9 Fig. 6. Oscillators and resonators, 1894- 12 Fig. 7· Lodge coherers, 1889-94 - Fig. 8. Magnetic detectors, 1897, 1902 - Fig. 9· Pedersen tikker, 1901 I3 Fig. IO. Original Fleming diode valves, 1904 - Fig. II. Audion, Lieben-Reisz relay, Pliotron - Fig. IZ. Marconi transmitter and receiver, 1896 Fig. IJ. Lodge-Muirhead and Marconi receivers 17 Fig. 14. Marconi's first tuned transmitter, 1899 Fig. IS. 11 Tune A" coil set, 1900 - 20 Fig. 16. Marconi at Signal Hill, Newfoundland, 1901 Fig. -
The Hurricane Notebook.Indd
The Hurricane Notebook The Hurricane Notebook Three Dialogues on the Human Condition By Elizabeth M. Edited by Alexander Jech Wisdom/Works Published by Wisdom Works TomVMorris.com • W Published 2019 Copyright © 2019, Alexander Jech Printed in the United States of America ISBN: 978-0-9994813-9-4 Set in Adobe Garamond Pro Designed by Abigail Chiaramonte Cover Concept by Sara Morris Edited by Megan Fritts This is a work of fiction. Names, characters, places, and incidents either are the product of the author’s imagination or are used fictitiously, and any resemblance to actual persons, living or dead, businesses, companies, events, or locales is entirely coincidental. τῷ μαθητῷ CONTENTS GNOTHI SEAUTON 3 Hyperion 4 A Conversation about Carrots 11 Diapsalmata 67 THE ANALYSTS 73 Niakani 86 Blood Brothers 133 Johnnie Walker Blue 152 The Ballad of the Matin Sea 162 Coda 192 The Black Swan 195 JOUSKA 215 Sarah 225 On the Friend 249 Joshua 276 Golden Slivers 303 Brooklyn, Once 347 THE ROSE-GARDEN 361 Macrina 364 PROVENANCE AND RECONSTRUCTION OF THE HURRICANE NOTEBOOK I. The text of this “philosophical dialogue,” “philosophical novel,” or whatever label one may set on this tragic tale is drawn from the notebook of a recent student at the University of North Caroli- na at Wilmington. The notebook was first recovered by fisherman Thomas Marian following a recent tropical storm that struck the Carolinas. Mr. Marian found the brown-covered notebook down by the fishing piers, wrapped in plastic to keep the water out, tied together with repurposed elastic cord of the sort one might find tucked about somewhere in many basements or garages. -
Airing Our Dirty Laundry
Spring 2015 Volume XX Blue Optics Airing Our Dirty Laundry A Literary Magazine Published Annually by the Journalism Department Table of Contents Photography, Dirty Laundry…cover Artwork, “Childhood Memories”…page 14 “The Lone Servant”…..page 29 Photography, “Whites”….page 2 “The Better Claim”…page 15 Artwork, “Loneliness”…..page 29 “Where the True Pearl Lies”…page 2 Photography, “The Cross”…page 15 “Headhunters”…..page 30 Artwork, “Shapes”….page 2 “In the Jaws of the Calculator”….page 15 “The Depths”…..page 30 Artwork, “Island Beauty”….page 2 Artwork, “Painted Face”….page 15 Sketch, “Rock Design”…..page 30 “The Sea”………page 3 “Light Among Shadows”….page 16 “Nightmare”…..page 31 “Old Man and the Sea”……….page 3 Illustrations, “Light Among Shadows”….page 16 Artwork, “In My Mind”….page 31 Artwork, “Under the Sea”…..page 3 “Go Northwest, Young Scout”….page 17 “All Will Remain Quiet on the Front”…page 32 “The Mystics of the Misty Mountain Top”….page 4 Photography, “Hanging Around”….page 17 Graphic, “Soldier’s Eyes” ……page 32 Graphic, “One Man Could Change the World”….page 4 “Every Star”…page 17 Graphic, “Butterfly”….page 32 “The Tunnel”….page 5 Photography, “Sunset”…page 17 Artwork, “Patriotic Soldier”…..page 32 Artwork, “Lonely Man”….page 5 Photography, “Angel”….page 17 Photography, “Delicates”…..page 33 “Living the Midwestern Life”……..page 5 “James Walker”….page 18 “Her”….page 33 Photography, “A Lake View”…..page 5 Artwork, “Contemplations”…page 18 Sketch, “Face”…page 33 Photography, “In the Field”…page 6 Graphic, “Smile”….page 18 “Give Us -
Download a PDF of the Inventory B
PUBLIC COLLECTORS Records Collection Inventory of: Marc Fischer Chicago, IL, USA About PUBLIC COLLECTORS Public Collectors consists of informal agreements where collectors allow the contents of their collection to be published and permit those who are curious to directly experience the objects in person. Participants must be willing to type up an inventory of their collection, provide a means of contact and share their collection with the public. Collectors can be based in any geographic location. Public Collectors is founded upon the concern that there are many types of cultural artifacts that public libraries, museums and other institutions and archives either do not collect or do not make freely accessible. Public Collectors asks individuals that have had the luxury to amass, organize, and inventory these materials to help reverse this lack by making their collections public. The purpose of this project is for large collections of materials to become accessible so that knowledge, ideas and expertise can be freely shared and exchanged. Public Collectors is not intended, nor should it be used for buying and selling objects. There are many preexisting venues for that. Collectors can accommodate viewers at whatever location is most com - fortable or convenient for them. If their collection is portable or can be viewed in a location other than the collector’s home, this would still be an appropriate way to participate in the project. In addition to hosting collection inventories and other information, www.publiccollectors.org includes digital collections that are suitable for web presentation, do not have a physical material analog, or are difficult or impossible to experience otherwise. -
From Spark to Speech – the Birth of Wireless Telephony
Feature From Spark to Speech – the birth of wireless telephony he history of voice before valves is one of the most fascinating Tadventures that unfolded during the embryonic years of our hobby. As we tune across the crowded HF amateur bands with a sensitive modern communications receiver, it’s difficult to imagine the eerie hush that the set would have captured if we were magically transported back some 120 years. In parts of the spectrum, it would have picked up the cosmic noise that has pervaded space since the beginning of time; and crashes of distant lightning strikes and local precipitation static would have punctuated that constant hiss. But near centres of population the electrical noise from arc lamps, switches, leaking insulators and the first electric streetcars would have revealed that man was beginning to harness the new form of energy that would change the world. In 1865, Clerk Maxwell had formulated the classical theoretical foundation for the understanding of electromagnetic waves, and by 1888 Heinrich Hertz had confirmed the existence of such waves and measured their A simple Righi-style spark transmitter at Salvan in Switzerland, where Marconi carried out properties, using spark gap transmitters with successful tests at a range of 1.5km in 1895. In 1897, Rodolfo Lonardi proposed to send speech frequencies between about 50 and 500MHz. by modulating the positions of the spark spheres. But Hertz thought that his work had no practical use, and it was left to Guglielmo Marconi, Oliver Lodge, William Preece, Reginald Fessenden, Lee de Forest, Karl Braun and others to pursue the application of these discoveries to the first practical systems of long distance radio communication. -
History of Telegraphy World in the Eighteenth and Early Nineteenth Centuries [1]
)%4()34/29/&4%#(./,/'93%2)%3 3ERIES%DITORS$R""OWERS $R#(EMPSTEAD (ISTORYOF 4ELEGRAPHY /THERVOLUMESINTHISSERIES 6OLUME 4HEHISTORYOFELECTRICWIRESANDCABLES2-"LACK 6OLUME 4ECHNICALHISTORYOFTHEBEGINNINGSOFRADAR333WORDS 6OLUME "RITISHTELEVISIONTHEFORMATIVEYEARS27"URNS 6OLUME 6INTAGETELEPHONESOFTHEWORLD0*0OVEYAND2%ARL 6OLUME 4HE'%#RESEARCHLABORATORIESp2*#LAYTONAND*!LGAR 6OLUME -ETRESTOMICROWAVES%"#ALLICK 6OLUME !HISTORYOFTHEWORLDSEMICONDUCTORINDUSTRY02-ORRIS 6OLUME 7IRELESSTHECRUCIALDECADEp'"USSEY 6OLUME !SCIENTISTSWARpTHEDIARYOF3IR#LIFFORD0ATERSONp2*#LAYTON AND*!LGAR%DITORS 6OLUME %LECTRICALTECHNOLOGYINMININGTHEDAWNOFANEWAGE!6*ONESAND 204ARKENTER 6OLUME #URIOSITYPERFECTLYSATISÙED&ARADAYlSTRAVELSIN%UROPE ""OWERSAND,3YMONDS%DITORS 6OLUME -ICHAEL&ARADAYlSk#HEMICAL.OTES (INTS 3UGGESTIONSAND/BJECTSOF 0URSUITlOF2$4WENEYAND$'OODING%DITORS 6OLUME ,ORD+ELVINHISINÚUENCEONELECTRICALMEASUREMENTSANDUNITS 04UNBRIDGE 6OLUME (ISTORYOFINTERNATIONALBROADCASTING VOLUME*7OOD 6OLUME 4HEEARLYHISTORYOFRADIOFROM&ARADAYTO-ARCONI'2-'ARRATT 6OLUME %XHIBITINGELECTRICITY+'"EAUCHAMP 6OLUME 4ELEVISIONANINTERNATIONALHISTORYOFTHEFORMATIVEYEARS27"URNS 6OLUME (ISTORYOFINTERNATIONALBROADCASTING VOLUME*7OOD 6OLUME ,IFEANDTIMESOF!LAN$OWER"LUMLEIN27"URNS 6OLUME !HISTORYOFTELEGRAPHYITSTECHNOLOGYANDAPPLICATION+'"EAUCHAMP 6OLUME 2ESTORING"AIRDlSIMAGE$&-C,EAN 6OLUME *OHN,OGIE"AIRDTELEVISIONPIONEER27"URNS 6OLUME 3IR#HARLES7HEATSTONE NDEDITION""OWERS 6OLUME 2ADIOMANTHEREMARKABLERISEANDFALLOF#/3TANLEY-&RANKLAND 6OLUME %LECTRICRAILWAYS p-#$UFFY 6OLUME #OMMUNICATIONSANINTERNATIONALHISTORYOFTHEFORMATIVEYEARS -
The Radio Amateur's Hand Book
THE RADIO AMATEUR'S HAND BOOK A. Frederick Collins, Inventor of the Wireless Telephone, 1899. Awarded Gold Medal for same, Alaska Yukon Pacific Exposition, 1909. THE RADIO AMATEUR'S HAND BOOK A Complete, Authentic and Informative Work on Wireless Telegraphy and Telephony BY FREDERICK COLLINS Inventor of the Wireless Telephone 1899; Historian of Wireless 1901-1910; Author of "Wireless Telegraphy" 1905 1922 TO WILLIAM MARCONI INVENTOR OF THE WIRELESS TELEGRAPH INTRODUCTION Before delving into the mysteries of receiving and sending messages without wires, a word as to the history of the art and its present day applications may be of service. While popular interest in the subject has gone forward by leaps and bounds within the last two or three years, it has been a matter of scientific experiment for more than a quarter of a century. The wireless telegraph was invented by William Marconi, at Bologna, Italy, in 1896, and in his first experiments he sent dot and dash signals to a distance of 200 or 300 feet. The wireless telephone was invented by the author of this book at Narberth, Penn., in 1899, and in his first experiments the human voice was transmitted to a distance of three blocks. The first vital experiments that led up to the invention of the wireless telegraph were made by Heinrich Hertz, of Germany, in 1888 when he showed that the spark of an induction coil set up electric oscillations in an open circuit, and that the energy of these waves was, in turn, sent out in the form of electric waves. -
Continuous Waves in Long-Distance Radio- Telegraphy
Presented at the 307th meeting of the A merican Institute of Electrical Engineers, New York, April 9, 1915. Copyright 1915, By A. I. E. E. CONTINUOUS WAVES IN LONG-DISTANCE RADIO- TELEGRAPHY BY L. F. FULLER ABSTRACT OF PAPER Ability to predetermine the probable normal daylight sending radius of high-powered radiotelegraphic stati ons is of prime importance in their design. The theoretical transmission equations for both continuous and damped waves are discussed and the empirical formulas for the latter are given. Experiments with continuous waves over a period of six months between San Francisco and Honolulu, a distance of 2100 nautical miles (3880 km.), are described, and an empirical for- mula for the calculation of probable sending radius with such waves is proposed. This is checked by experiments between Tuckerton, N. J., and Honolulu, 4330 nautical miles (8000 km.). Curves giving the energy received at Honolulu from San Francisco under both day and night conditions are shown, and the effects of changes in wave length upon transmission efficiency are discussed. Evidence strengthening theories of the reflection, refraction and interference of Hertzian waves in long-distance transmissions, and experimental data showing interference bands not over 18 miles in width, are given. The great value of easy and rapid changes in wave length, especially at night, is apparent from the curves. Final conclusions drawn from a comparison of the empirical transmission formulas for continuous and for damped waves are that the transmission efficiency of continuous waves is some- what higher than that of damped waves on wave lengths of ap- proximately 3000 m. -
Paraphilia X
PARAPHILIA X CONTENTS Cover art by Sean Madden Edited and Designed By Artwork by F.X. Tobin P3 ‘Interesting Times: Freedom’ by Andrew Maben P4 Díre McCain ‘Spook House’ by Kate MacDonald p9 ‘Prompted By Matthews’ by Chris Madoch p14 D M Mitchell ‘…barely missing on a frozen plain to nowhere’ by A. Razor p29 ‘Last Tango In The City Of Dreadful Night’ images © Contact Paraphilia Thomas Evans p44 ‘Playing Tag With The Devil’ an interview with Robert Earl Reed p50 [email protected] ‘It’s Hard To Argue With Experience’ by Kenneth Rains Shiffrin p61 Website ‘Blood And Honey On The Horizon, Said The Horse’ by Craig Woods p62 ‘A Sympathetic Figure’ by James King, photos © Max www.paraphiliamagazine.com Reeves p79 ‘The Circus’ by Ele-Beth Little, photos © Lisa www.myspace.com/paraphiliamagazine Wormsley p83 ‘The Sunnybrook Retreat’ by Karl Koweski, photos © Max Reeves p87 www.facebook.com/group.php?gid=498 ‘Mizriz O’Payne’s Very Perfect Pekipoo’ by Rick 35950764 Grimes p108 ‘Power And Sacrifice’ Michael Gira interviewed by Craig Woods p110 Submissions ‘The Nature Of Electricity’ by Kyle Hemmings, photos © Richard A Meade p143 ‘Rome’ by Adam Moorad p148 This a free magazine distributed in the ‘Your Newest Superheroes’ Ruby Friedman interests of giving culture back to the Orchestra interviewed by Kirsten Milliken, photos © Alex Elena & Kirsten Milliken p154 people instead of the industry. We cannot ‘Journal Art Theft’ by Stagger Lloyd, photos © pay for contributions to this publication. Malcolm Alcala p161 However, please see our website for ‘Death Wish Chameleon X’ by Cricket Corleone, photos © Richard A. -
Sound, Objecthood, and Place in the Mixtapes of DJ Screw
City University of New York (CUNY) CUNY Academic Works Dissertations, Theses, and Capstone Projects CUNY Graduate Center 9-2020 All Day in the Trey-Fold: Sound, Objecthood, and Place in the Mixtapes of DJ Screw Matthew K. Carter The Graduate Center, City University of New York How does access to this work benefit ou?y Let us know! More information about this work at: https://academicworks.cuny.edu/gc_etds/3982 Discover additional works at: https://academicworks.cuny.edu This work is made publicly available by the City University of New York (CUNY). Contact: [email protected] All Day in the Trey-Fold: Sound, Objecthood, and Place in the Mixtapes of DJ Screw by Matthew K. Carter A dissertation submitted to the Graduate Faculty in Music in partial fulfillment of the requirements of the degree of Doctor of Philosophy 2020 © 2020 MATTHEW K. CARTER All Rights Reserved ii All Day in the Trey-Fold: Sound, Objecthood, and Place in the Mixtapes of DJ Screw by Matthew K. Carter This manuscript has been read and accepted for the Graduate Faculty in Music in satisfaction of the dissertation requirement for the degree of Doctor of Philosophy. Shaugn O’Donnell Date Chair of Examining Committee Norman Carey Date Executive Officer Supervisory Committee: Chadwick Jenkins, Advisor Jeffrey Taylor, First Reader Shaugn O’Donnell, Second Reader Graham Harman, External Reader THE CITY UNIVERSITY OF NEW YORK iii Abstract All Day in the Treyfold: Sound, Objecthood, and Place in the Mixtapes of DJ Screw by Matthew K. Carter Advisor: Chadwick Jenkins This dissertation traces the impact of the mixtapes of DJ Screw on the emergence of Houston hip hop culture in the 1990s. -
The End and the Beginning the Book of My Life
Hermynia Zur Mühlen The End and the Beginning The Book of My Life Translated, Annotated and with an Introduction by Lionel Gossman OpenBook Publishers To access digital resources including: blog posts videos online appendices and to purchase copies of this book in: hardback paperback ebook editions Go to: https://www.openbookpublishers.com/product/65 Open Book Publishers is a non-profit independent initiative. We rely on sales and donations to continue publishing high-quality academic works. Hermynia Zur Mühlen in the garden of the estate at Eigstfer, Estonia, c. 1910. The End and the Beginning The Book of My Life by Hermynia Zur Mühlen with Notes and a Tribute by Lionel Gossman ORIGINALLY TRANSLATED FROM THE GERMAN BY FRANK BARNES AS THE RUNAWAY COUNTESS (NEW YORK: JONATHAN CAPE & HARRISON SMITH, 1930). TRANSLATION EXTENSIVELY CORRECTED AND REVISED FOR THIS NEW EDITION BY LIONEL GOSSMAN. Cambridge 2010 Open Book Publishers CIC Ltd., 40 Devonshire Road, Cambridge, CB1 2BL, United Kingdom http://www.openbookpublishers.com @ 2010 Lionel Gossman Some rights are reserved. This book is made available under the Creative Commons Attribution-Non-Commercial-No Derivative Works 2.0 UK: England & Wales License. This license allows for copying any part of the work for personal and non-commercial use, providing author attribution is clearly stated. Details of allowances and restrictions are available at: http://www.openbookpublishers.com As with all Open Book Publishers titles, digital material and resources associated with this volume are available from our website: http://www.openbookpublishers.com ISBN Hardback: 978-1-906924-28-7 ISBN Paperback: 978-1-906924-27-0 ISBN Digital (pdf): 978-1-906924-29-4 Acknowledgment is made to the following for generously permitting use of material in their possession: Princeton University Library, Michael Stumpp, Director of the Emil Stumpp Archiv, Gelnausen, Louise Pettus Archives and Special Collections, Winthrop University Germany and Dr. -
Nzvrs Bulletin
NZVRS BULLETIN Vol 32 No 1 February 2011 A Tikker A mechanical “detector” of the continuous wave. NEW ZEALAND VINTAGE RADIO SOCIETY INC. A non-profit organisation devoted to the preservation of early radio equipment and associated historical information. Postal address - PO Box 13 873, Onehunga, Auckland 1643. Web site: - http://www.nzvrs.pl.net Email address: - [email protected] PRESIDENT : Ian Sangster, 75 Anawata AGM is Saturday 9 July 2011 Road, R.D.2, New Lynn, Auckland 0772 Phone: 09-814 9597 or 027 227 0426 A Calendar of Events is listed on our Email: [email protected] website at www.nzvrs.pl.net/aaa/calendar SECRETARY : Paul Woodcock, 2 Levy AUCKLAND MEETINGS are held at Road, Glen Eden, Auckland. the Horticultural Society Hall, 990 Great Phone: 09-818 4740 North Road (opposite Motions Road.) Email: [email protected] Western Springs, on the third Monday of Paul handles general correspondence and the month from 7.30pm. requests for purchase of books and badges. March: Monday 21 Freeview night. TREASURER: David Crozier, P.O. Box April: Monday 18 Auction Nite 13 873, Onehunga, Auckland 1643. May: Monday 16 Freeview – part 2 Phone: 09-636 5954 or 022 698 7978 June: Monday 20 Auction Nite Email: [email protected] July: Saturday 9 A G M 10 ~ 4 pm this David handles editorial, financial and replaces the Monday 18 July meeting. membership matters. A list of members is available on application with a stamped, TARANAKI AREA MEETINGS are self-addressed envelope for the personal use held on the second Sunday in even of members only.