Paradigm Lost: Nikola Tesla’S True Wireless
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Thomas Edison Vs Nikola Tesla THOMAS EDISON VS NIKOLA TESLA
M C SCIENTIFIC RIVALRIES PHERSON AND SCANDALS In the early 1880s, only a few wealthy people had electric lighting in their homes. Everyone else had to use more dangerous lighting, such as gas lamps. Eager companies wanted to be the first to supply electricity to more Americans. The early providers would set the standards—and reap great profits. Inventor THOMAS EDISON already had a leading role in the industry: he had in- vented the fi rst reliable electrical lightbulb. By 1882 his Edison Electric Light Company was distributing electricity using a system called direct current, or DC. But an inventor named NIKOLA TESLA challenged Edison. Tesla believed that an alternating cur- CURRENTS THE OF rent—or AC—system would be better. With an AC system, one power station could deliver electricity across many miles, compared to only about one mile for DC. Each inventor had his backers. Business tycoon George Westinghouse put his money behind Tesla and built AC power stations. Meanwhile, Edison and his DC backers said that AC could easily electrocute people. Edison believed this risk would sway public opinion toward DC power. The battle over which system would become standard became known as the War of the Currents. This book tells the story of that war and the ways in which both kinds of electric power changed the world. READ ABOUT ALL OF THE OF THE SCIENTIFIC RIVALRIES AND SCANDALS BATTLE OF THE DINOSAUR BONES: Othniel Charles Marsh vs Edward Drinker Cope DECODING OUR DNA: Craig Venter vs the Human Genome Project CURRENTS THE RACE TO DISCOVER THE -
Investigation of Un-American Propaganda Activities in The
INVESTIGATION OF UN-AMERICAN PROPAGANDA ACTIVITIES IN THE UNITED STATES SPECIAL COMMITTEE ON UN-AMERICAN ACTIVITIES HOUSE OF REPRESENTATIVES SEVENTY-EIGHTH CONGRESS FIRST SESSION ON H. Res. 282 TO INVESTIGATE (1) THE EXTENT, CHARACTER, AND OBJECTS OF UN-AMERICAN PROPAGANDA ACTIVITIES IN THE UNITED STATES, (2) THE DIFFUSION WITHIN THE UNITED STATES OF SUBVERSIVE AND UN-AMERICAN PROP- AGANDA THAT IS INSTIGATED FROM FOREIGN COUNTRIES OR OF A DOMESTIC ORIGIN AND ATTACKS THE PRINCIPLE OF THE FORM OF GOVERNMENT AS GUARANTEED BY OUR. CONSTITUTION, AND (3) ALL OTHER QUESTIONS IN RELATION THERETO THAT WOULD AID CONGRESS IN ANY NECESSARY REMEDIAL LEGISLATION APPENDIX-PART VII REPORT ON THE AXIS FRONT MOVEMENT IN THE UNITED STATES FIRST SECTION-NAZI. ACTIVITIES Printed for the use of the Special Committee on Un-American Activities UNITED STATES GOVERNMENT PRINTING OFFICE 1VASIIINGTON : 1943 IN VESTIGATION OF UN-AMERICAN PROPAGANDA ACTIVITIES IN THE UNITED STATES • • INTRODUCTION The following report is the first. section of a comprehensive digest which the committee has prepared dealing solely with the activities of Axis agents and organizations in the• United States. This com- mittee came into existence in 1938 several years after Adolf Hitler • and his Nazi Party had put in motion their ptan of spreading nazi-ism throughout the world. The United States was no exception to this diabolical scheme, fur Hitler had already planted in our midst many of his trusted agents who were carrying on their treasonable Work SPECIAL COMMITTEE ❑NT UN-A MERI CAN ACTIVITIES, WASHINGTON, D. C. unmolested. Many of the legitimate and traditional German societies in the United States had already been diverted to the cause of nazi- mARTIN DIES, Tccm, Clialrmag JOE .5TARNE.S, Alabama ism. -
Thomas Edison Alexander Graham Bell
The Inventing Game Cut out the images. Cut out the name of the inventor separately. Read out the text as a clue. Can people match the correct name and image? THOMAS EDISON Clue The first great invention developed by (don’t say the name) Thomas Edison was the tin foil phonograph. A prolific producer, Edison is also known for his work with light bulbs, electricity, film and audio devices, and much more. ALEXANDER GRAHAM BELL Clue In 1876, at the age of 29, (don’t say the name) Alexander Graham Bell invented his telephone. Among one of his first innovations after the telephone was the "photophone," a device that enabled sound to be transmitted on a beam of light. GEORGE WASHINGTON CARVER Clue (Don’t say the name) George Washington Carver was an agricultural chemist who invented 300 uses for peanuts and hundreds of more uses for soybeans, pecans, and sweet potatoes. His contributions chang ed the history of agriculture in the south. ELI WHITNEY Clue (Don’t say the name) Eli Whitney invented the cotton gin in 1794. The cotton gin is a machine that separates seeds, hulls, and other unwanted materials from cotton after it has been picked. JOHANNES GUTTENBERG Clue (don’t say the name) Johannes Gutenberg was a German goldsmith and inventor best known for the Gutenberg press, an innovative printing machine that used movable type. JOHN LOGIE BAIRD Clue (don’t say the name) John Logie Baird is remembered as the inventor of mechanical television (an earlier version of television). Baird also patented inventions related to radar and fibre optics. -
Akins Papers: Finding Aid
http://oac.cdlib.org/findaid/ark:/13030/c8h132ss No online items Zoë Akins Papers: Finding Aid Finding aid prepared by Gayle M. Richardson. The Huntington Library, Art Collections, and Botanical Gardens Manuscripts Department The Huntington Library 1151 Oxford Road San Marino, California 91108 Phone: (626) 405-2191 Email: [email protected] URL: http://www.huntington.org © 2008 The Huntington Library. All rights reserved. Zoë Akins Papers: Finding Aid mssZA 1-7330 1 Overview of the Collection Title: Zoë Akins Papers Dates (inclusive): 1878 - 1959 Collection Number: mssZA 1-7330 Creator: Akins, Zoë, 1886-1958. Extent: 7,354 pieces in 185 boxes + ephemera. Repository: The Huntington Library, Art Collections, and Botanical Gardens. Manuscripts Department 1151 Oxford Road San Marino, California 91108 Phone: (626) 405-2191 Email: [email protected] URL: http://www.huntington.org Abstract: This collection contains the personal and professional papers of American writer Zoë Akins (1886-1958). It includes correspondence with various literary, theatrical and motion picture figures of the first half of the twentieth century. There are also manuscripts of novels, plays, poems, short stories, outlines for plays, and articles. There is also correspondence related to her husband, Hugo Rumbold (d. 1932), and the Rumbold family. Language: English. Access Open to qualified researchers by prior application through the Reader Services Department. For more information, contact Reader Services. Publication Rights The Huntington Library does not require that researchers request permission to quote from or publish images of this material, nor does it charge fees for such activities. The responsibility for identifying the copyright holder, if there is one, and obtaining necessary permissions rests with the researcher. -
Wireless Telegraphy and Radio Wireless Information Network and National Broadcast System
Wireless Telegraphy and Radio Wireless Information Network and National Broadcast System CEE 102: Prof. Michael G. Littman Course Administrator: Hiba Abdel-Jaber [email protected] Computers allowed for NOTETAKING ONLY Please - NO Cell Phones, Texting, Internet use 1 Consumer Goods 1900 - 1980 Economics and Politics 2 Consumer Goods 1900 - 1980 RMS Titanic with Marconi Antenna Economics and Politics 3 Marconi - Wireless messages at sea RMS Titanic with Marconi Antenna 4 transmitter receiver Marconi - Wireless messages at sea Heinrich Hertz’s Experiment - 1888 § Spark in transmitter initiates radio burst § Spark in receiver ring detects radio burst 5 transmitter receiver DEMO Marconi - Wireless messages at sea Heinrich Hertz’s Experiment - 1888 § Spark in transmitter initiates radio burst § Spark in receiver ring detects radio burst 6 transmitter receiver Heinrich Hertz’s Experiment - 1888 § Spark in transmitter initiates radio burst § Spark in receiver ring detects radio burst 7 Electromagnetic Wave wave-speed frequency wavelength Time or Length 8 Electromagnetic Wave wave-speed frequency Wireless Telegraph Hertz Discovery wavelength Marconi Patents Marconi Demonstrations Time or Length 9 Marconi’s Wireless Telegraph Wireless Telegraph Hertz Discovery Marconi Patents Marconi Demonstrations 10 Marconi’s Wireless Telegraph Wireless Telegraph Hertz Discovery DEMO Marconi Patents Marconi Demonstrations 11 Marconi’s Wireless Telegraph 12 13 Marconi’s Patent for Tuning coherer 14 Tuning Circuit Marconi’s Patent for Tuning L C coherer 1 1 ν = 2π LC 15 Transmitting antenna Marconi’s Patent for Tuning coherer Cornwall (England) 16 KITE Receiving antenna Transmitting antenna Saint John’s (Newfoundland) Cornwall (England) …..dot……….……dot……......…….dot…... December 12, 1901 17 KITE Receiving antenna Saint John’s (Newfoundland) Marconi gets Nobel Prize in 1909 …..dot……….……dot……......…….dot….. -
Tesla's Coil. a Toy Or Useful Thing in the Life of Radio Engineering?
УДК 537 Ільчук Д.Р. Tesla's coil. A toy or useful thing in the life of radio engineering? Вінницький національний технічний університет Аннотація. У цій статті, подан опис такого приладу як Котушка Тесли. Наведені її характеристики, принцип роботи, історія створення та значення в сучасному житті. Також описані процеси створення власноруч та розсуди про практичність даного виробу у реальному житті. Ключові слова: Котушка індуктивності, висока напруга, Нікола Тесла, радіотехніка, електрична дуга. Abstract. This article contains a description of the device as a Tesla coil. These characteristics of the principle of history and value creation in modern life. Also describes the process of creating his own judge and practicality of this product in real life. Keywords: Inductor, high voltage, Nikola Tesla, radio, electric arc. I.Introduction Perhaps in the life of every student comes a time when it begins to be interested in their field. In some it comes in the first year, someone on last. At the beginning of the 3rd year I finally decided to solder something with their hands. The choice immediately fell on Tesla coil. But is this thing so important, whether it is only a toy, which is impossible to do anything useful? Let us know about it. II. Summary The Tesla coil is an electrical resonant transformer circuit designed by inventor Nikola Tesla around 1891 as a power supply for his "System of Electric Lighting".It is used to produce high-voltage, low-current, high frequency alternating-current electricity. Tesla experimented with a number of different configurations consisting of two, or sometimes three, coupled resonant electric circuits. -
The Last Days of Night
FEATURE CLE: THE LAST DAYS OF NIGHT CLE Credit: 1.0 Thursday, June 14, 2018 1:25 p.m. - 2:25 p.m. Heritage East and Center Lexington Convention Center Lexington, Kentucky A NOTE CONCERNING THE PROGRAM MATERIALS The materials included in this Kentucky Bar Association Continuing Legal Education handbook are intended to provide current and accurate information about the subject matter covered. No representation or warranty is made concerning the application of the legal or other principles discussed by the instructors to any specific fact situation, nor is any prediction made concerning how any particular judge or jury will interpret or apply such principles. The proper interpretation or application of the principles discussed is a matter for the considered judgment of the individual legal practitioner. The faculty and staff of this Kentucky Bar Association CLE program disclaim liability therefore. Attorneys using these materials, or information otherwise conveyed during the program, in dealing with a specific legal matter have a duty to research original and current sources of authority. Printed by: Evolution Creative Solutions 7107 Shona Drive Cincinnati, Ohio 45237 Kentucky Bar Association TABLE OF CONTENTS The Presenter .................................................................................................................. i The War of the Currents: Examining the History Behind The Last Days of Night .................................................................................................... 1 AC/DC: The Two Currents -
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 ...................................................................... -
Reginald Fessenden Challenge 2021
T H E R E G I N A L D F E S S E N D E N C H A L L E N G E 13 & 14 J U L Y2021 IN SUPPORT OF INASSOCIATIONWITH IN ASSOCIATION WITH THE REGINALD FESSENDEN CHALLENGE The rega�a is a fantas�c opportunity to network with industry peers, promote your brandamongst a relevant audience, enjoy a team building ac�vity and have a fun day, sailing in the UK's premier sailing area, the Solent. Whether you choose to bring a team from head office, or cap�vate key clients or business partners, a day on a yacht is an unrivalled way to build stronger working rela�onships.Combine that with networking drinks and dinner at the nearby Royal Southern Yacht Club - and the result is an exci�ng and produc�ve event! You and your invited team will sail together on a premium sailing yacht, under the guidance of a professional skipper - so don't worry, no previous sailing experience is required. OUR YACHTS Our Beneteau Oceanis 37’s are ideal for novice sailors and competent racers alike. As well as a superb sailing experience, these yachts are ideal for corporate hospitality, with an unclu�ered deck layout, spacious cockpit and plenty of room for crew to move about both above and below deck. Our professional skippers will give you a full safety brief and take you through the basics before you go out to sea, and con�nue training so no sailing experience is necessary. BENETEAU OCEANIS BENETEAU OCEANIS 37 37 INSIDE LAYOUT OUTSIDE LAYOUT THE CHARITY - The Not Forgotten The Not Forgo�en is a unique na�onal Tri-Service charity which provides entertainment, leisure and recrea�on for the serving wounded, injured or sick and for ex-service men and women with disabili�es. -
NIKOLA TESLA July 10, 1856 – January 7, 1943
The AMA History Project Presents: Biography of NIKOLA TESLA July 10, 1856 – January 7, 1943 Written by GS (03/1976); Transcribed and reformatted by JS (09/2010) The following was published in the March 1976 issue of Model Aviation magazine, written by George V. Sosic. TESLA – The Father of RC On September 2, 1897, the Chief U.S. Examiner of Patents visited the laboratory of Nikola Tesla in New York. This visit was prompted by his belief that this inventor’s latest patent application went far beyond the realm of possibility in his claim of a practical wireless control system for vessels and vehicles from a great distance. It should be noted that the above date preceded the Wright brothers’ airplane by more than six years. Tesla gave his control system the name of Teleautomatics. It is now known as the guided-missile principle, RPV (remotely piloted vehicles) and radio control, which the model aircraft fraternity calls RC. This article was written for model aircraft builders and fliers, so the writer will refer to it as RC. Four years before Tesla shook up the Chief U.S. Examiner of Patents with his application for a patent on RC, he demonstrated a vacuum-tube radio for voice and music at the 1893 World’s Fair in Chicago, so anyone with any electronic knowledge at all can easily see that his next logical step would be to convert his frequency control and tuning knowledge to other uses such as RC and automation. Tesla showed his bench-mounted RC components in working order. -
Tesla's Connection to Columbia University by Dr. Kenneth L. Corum
* Tesla’s Connection to Columbia University by Kenneth L. Corum and James F. Corum, Ph.D. “The invention of the wheel was perhaps rather obvious; but the invention of an invisible wheel, made of nothing but a magnetic field, was far from obvious, and that is what we owe to Nikola Tesla.” Professor Reginald Kapp, 1956 INTRODUCTION The Electrical Engineering curriculum at Columbia University, though not the first in the US, is one of the oldest and most respected EE programs in the world. From the beginning, a conscientious effort was made to base it on a foundation of science. It has been guided by the specific philosophy stated by Professor Michael Pupin: “Professor Crocker and I maintained that there is an ‘electrical science’ which is the real soul of electrical engineering.” Arguably the most stunning and significant lecture in modern history was presented one spring evening, more than a century ago, at Columbia University. The wealth of nations turned on its merits. Weighing on the balances would be our vast cities, civilization, and quality of life. But, what was it? . .Whatever it was, its impact has been as momentous for the progress and prosperity of civilization as the invention of the wheel! . It was Tesla’s great discovery and analysis of the rotating magnetic field, and a means for the electrical distribution of energy.1 As a result of the analysis presented in this lecture, the great Falls of Niagara would soon be harnessed for the benefit of mankind and launch civilization into the “Electromagnetic Century”. The Engineering Council for Professional Development (now called ABET) has defined “Engineering” as “that profession which utilizes the resources of the planet for the benefit of mankind”. -
Reginald Aubrey Fessenden (1866 – 1932)
Reginald Aubrey Fessenden (1866 – 1932) By Brian Smith As I approach middle age, I marvel at how little Canadian history was taught to us during our school years. Apparently, we missed a fair amount. Recent events, such as the controversy over changing the name of Mount Logan (for William Edmond Logan – surveyor / geologist) to Mount Trudeau and the CBC series, “Canada, A People’s History”, have begun to open the eyes of Canadians to our important and honoured past. Canadians have contributed a great deal to the events of the world. And that includes the ‘Father of Radio Broadcasting’, Canadian Reginald Fessenden. Reginald Fessenden was born in East Bolton, Quebec on October 6, 1866. He was the eldest son of Anglican Reverend Elisha and Clementina Fessenden (who are buried in Ancaster, Ontario, where a school still bears the family name). He spent his early boyhood in Fergus and Niagara Falls, Ontario. Reginald Fessenden developed a keen interest in mathematics far beyond his years, which led him, at the age of 14, to a mathematics mastership at Bishop’s College in Lennoxville, Quebec. At 18, he accepted a teaching position that took him to Bermuda where he met and married his wife, Helen, with whom he would spend the next 40 years and have only one child, a son. Fessenden had a keen interest in the work of Thomas Alva Edison. So much so that he left Bermuda at the age of 20 to seek employment at Thomas Edison’s machine shop in New York. He was hired as an instrument tester, without even meeting Edison, but so impressed Edison’s staff, that he was promoted to work in the labs and eventually became chief chemist; all before the age of 24.