Telegraph: Early Postal Role
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Samuel B. Morse, Painter (PDF)
Motto/Logo ( Nicole Greaney) Thesis (Group) Influences and Comparison to Leonardo DaVinci (Joe Fiore) Biography (Traci Gottlieb) Works (Nicole Greaney) Slide Sh ow o f Wor ks /Des igns (Nico le G reaney ) Place (Kristen Alldredge) Itinerary (()Traci Gottlieb) Lesson Plan (Kristen Alldredge) Mock Web Site (Joe Fiore) Web Page for Guidebook (Traci Gottlieb) Conclusion (Group) Without Samuel Finley Breese Morse’s expansive imagination, consequent creatiiivity and perseverance developed through artistry, he would not have been cappgable of making his other contributions to the world, such as Locust Grove and the telegraph. Morse is the American Leonardo because he is an ideal Renaissance Man, with mastery in the dualisms of art and science. •Why an artist? • as a boy, favorite activity was drawing • while attending Yale , drew pictures of classmates/sold them for spending money • setbacks: Self Portrait • art still new in America, not much of a demand • ititimpatient, expect tdittihed instant riches • acquired an enhanced sense of determination • eventually led to his success as an inventor • became ppyrominently known as an artist in the 1820s and 1830s • foundation of the National Academy of Design • offered a position as a professor of painting/sculpture at NYU • an idea caught Morse’s imagination • struggled with invention; never gave up • SUCCESS • purchase of Locust Grove • remembered as an inventor, not an artist.. Self Portrait Landscape Paintings Thomas Cole Portraits Inventions • Natural Talent Samuel Morse • Hudson River School of Art • European Styles Morse as a Renaissance Man Mastery of the “duality of science and art” Inner genius of the painter/inventor Further Comparisons 1808. -
Samuel Morse's Telegraph
1 SAMUEL MORSE’S TELEGRAPH (The Start of the Communications Revolution) Steve Krar We live in the information age where more and more information is required at all times. There never seems to be a time when information is so readily available, but this has not always been the case. The today’s communications revolution includes radio, telephones, television computers, fax machines and satellites. So fast is the change in communications that we sometimes forget the machine that started it all. The Telegraph The telegraph was born at a time when few grasped even remotely what electric current was, let alone what it might do. The telegraph was a landmark in human development from which there could be no retreat. For the first time messages could routinely travel great distances faster than man or beast could carry them. Samuel Morse In October 1832 Samuel Morse, an early pioneer of the telegraph, on his way home from Europe met Dr. Charles Jackson who asked whether electricity took much time to travel over a long wire. The idea began to obsess Morse and before reaching shore, he had sketched the basic elements of a telegraph instrument and a crude version of a code based on dots and dashes. News from Europe in early 1837 told of the great strides being made in telegraphy; Morse realized that if he did not finish the invention soon, his efforts might be wasted. Finally, in February 1837 Congress directed the Secretary of the Treasury to ask for proposals for a telegraph. Morse’s Telegraph Morse thought that if he could perfect the electromagnetic telegraph that he had designed, in 1836, it would answer the government's needs. -
Early Forms of Long-Distance Communication
EARLY FORMS OF LONG-DISTANCE COMMUNICATION In this material, you will learn about Telegraphy, Telephone and GSM architecture Before the development of the electric telegraph in the 19th century revolutionized how information was transmitted across long distances, ancient civilizations such as those in China, Egypt and Greece used drumbeats or smoke signals to exchange information between far-flung points. However, such methods were limited by the weather and the need for an uninterrupted line of sight between receptor points. These limitations also lessened the effectiveness of the semaphore, a modern precursor to the electric telegraph. Developed in the early 1790s, the semaphore consisted of a series of hilltop stations that each had large movable arms to signal letters and numbers and two telescopes with which to see the other stations. Like ancient smoke signals, the semaphore was susceptible to weather and other factors that hindered visibility. A different method of transmitting information was needed to make regular and reliable long-distance communication workable. Did You Know? SOS, the internationally recognized distress signal, does not stand for any particular words. Instead, the letters were chosen because they are easy to transmit in Morse code: "S" is three dots, and "O" is three dashes. The Electric Telegraph In the early 19th century, two developments in the field of electricity opened the door to the production of the electric telegraph. First, in 1800, the Italian physicist Alessandro Volta (1745-1827) invented the battery, which reliably stored an electric current and allowed the current to be used in a controlled environment. Second, in 1820, the Danish physicist Hans Christian Oersted (1777-1851) demonstrated the connection between electricity and magnetism by deflecting a magnetic needle with an electric current. -
Telephone Talking to Your Neighbor Hasn’T Always Been As Easy As Picking up the Receiver
INVENTIONS The Telephone Talking to your neighbor hasn’t always been as easy as picking up the receiver BY CATHERINE V.O. HOFFBERGER “Mr. Watson, come in here. I need you!” These historic words are as recognizable as Martin Luther King Jr.’s inspiring “I Have a Dream” and John F. Kennedy’s philosophical “Ask not what your country can do for you— ask what you can do for your country.” Uttered by one Alexander Graham Bell on March 7, 1876, this quote is remem- bered not for its eloquence or effect, but for what it represents: the invention of that great tool of everyday life, the Telephone. Bell, born in Scotland to a deaf mother in 1847, followed the professional footsteps of his father, uncle and grandfa- ther, all professors of elocution (the study of speaking). Young “Aleck,” a passionate elocutionist, specialized in teaching speech to the deaf. Telephony, the science of producing sound (‘phono’) electrically over distance (‘tele’), was the rage among Three weeks later, Mr. Watson famously heard Bell sum- 19th-century inventors. The telegraph, created in England moning him over its wires. As his was the first telephone in 1833 and soon improved by American Samuel Morse, to truly work and receive a patent, Bell was credited with accomplished that in staccato, on-and-off rhythms. By the the invention. mid-1800s, it was the world’s means of long-distance audi- Bell’s fledgling business sold just six telephones in its ble communication. Bell and other scientists across first month. But by 1891, the company, by then known as Europe and in the United States including Antonio AT&T (the Atlantic Telephone and Telegraph Co.), was Meucci, Johann Philipp Reis, Elisha Gray and Thomas operating some 5 million phones in America. -
Case 20-32299-KLP Doc 208 Filed 06/01/20 Entered 06/01/20 16
Case 20-32299-KLP Doc 208 Filed 06/01/20 Entered 06/01/20 16:57:32 Desc Main Document Page 1 of 137 Case 20-32299-KLP Doc 208 Filed 06/01/20 Entered 06/01/20 16:57:32 Desc Main Document Page 2 of 137 Exhibit A Case 20-32299-KLP Doc 208 Filed 06/01/20 Entered 06/01/20 16:57:32 Desc Main Document Page 3 of 137 Exhibit A1 Served via Overnight Mail Name Attention Address 1 Address 2 City State Zip Country Aastha Broadcasting Network Limited Attn: Legal Unit213 MezzanineFl Morya LandMark1 Off Link Road, Andheri (West) Mumbai 400053 IN Abs Global LTD Attn: Legal O'Hara House 3 Bermudiana Road Hamilton HM08 BM Abs-Cbn Global Limited Attn: Legal Mother Ignacia Quezon City Manila PH Aditya Jain S/O Sudhir Kumar Jain Attn: Legal 12, Printing Press Area behind Punjab Kesari Wazirpur Delhi 110035 IN AdminNacinl TelecomunicacionUruguay Complejo Torre De Telecomuniciones Guatemala 1075. Nivel 22 HojaDeEntrada 1000007292 5000009660 Montevideo CP 11800 UY Advert Bereau Company Limited Attn: Legal East Legon Ars Obojo Road Asafoatse Accra GH Africa Digital Network Limited c/o Nation Media Group Nation Centre 7th Floor Kimathi St PO Box 28753-00100 Nairobi KE Africa Media Group Limited Attn: Legal Jamhuri/Zaramo Streets Dar Es Salaam TZ Africa Mobile Network Communication Attn: Legal 2 Jide Close, Idimu Council Alimosho Lagos NG Africa Mobile Networks Cameroon Attn: Legal 131Rue1221 Entree Des Hydrocarbures Derriere Star Land Hotel Bonapriso-Douala Douala CM Africa Mobile Networks Cameroon Attn: Legal BP12153 Bonapriso Douala CM Africa Mobile Networks Gb, -
Optical Communication: Its History and Recent Progress Govind P
177 8 Optical Communication: Its History and Recent Progress Govind P. Agrawal 8.1 Historical Perspective – 178 8.2 Basic Concepts Behind Optical Communication – 181 8.2.1 Optical Transmitters and Receivers – 181 8.2.2 Optical Fibers and Cables – 182 8.2.3 Modulations Formats – 184 8.2.4 Channel Multiplexing – 185 8.3 Evolution of Optical Communication from 1975 to 2000 – 187 8.3.1 The First Three Generations – 187 8.3.2 The Fourth Generation – 188 8.3.3 Bursting of the Telecom Bubble in 2000 – 190 8.4 The Fifth Generation – 191 8.5 The Sixth Generation – 192 8.5.1 Capacity Limit of Single-Mode Fibers – 193 8.5.2 Space-Division Multiplexing – 194 8.6 Worldwide Fiber-Optic Communication Network – 195 8.7 Conclusions – 197 References – 198 G.P. Agrawal (*) The Institute of Optics, University of Rochester, Rochester NY 14627, USA e-mail: [email protected] © The Author(s) 2016 M.D. Al-Amri et al. (eds.), Optics in Our Time, DOI 10.1007/978-3-319-31903-2_8 178 G.P. Agrawal 8.1 Historical Perspective The use of light for communication purposes dates back to antiquity if we interpret optical communication in a broad sense, implying any communication scheme that makes use of light. Most civilizations have used mirrors, fire beacons, or smoke signals to convey a single piece of information (such as victory in a war). For example, it is claimed that the Greeks constructed in 1084 B.C. a 500-km-long line of fire beacons to convey the news of the fall of Troy [1]. -
Radio Science Bulletin Staff
INTERNATIONAL UNION UNION OF RADIO-SCIENTIFIQUE RADIO SCIENCE INTERNATIONALE ISSN 1024-4530 Bulletin No 360 March 2017 Radio Science URSI, c/o Ghent University (INTEC) St.-Pietersnieuwstraat 41, B-9000 Gent (Belgium) Contents Radio Science Bulletin Staff ....................................................................................... 4 URSI Offi cers and Secretariat.................................................................................... 7 Editor’s Comments ..................................................................................................... 9 Special Section: The Best Papers from the EMTS 2016 Young Scientist Awards 11 Sub-Voxel Refi nement Method for Tissue Boundary Conductivities in Volume Conductor Models ................................................................................... 13 How Kerr Nonlinearity Infl uences Polarized Electromagnetic Wave Propagation ................................................................................................. 19 Sum-Frequency and Second-Harmonic Generation from Plasmonic Nonlinear Nanoantennas ...................................................................................... 43 Hornet Biological Radar for Detection, Tracking, Direction Finding, and Long Distance Communication: Is This Possible? ............................................. 50 Foreword to Radio Science for Humanity: URSI-France 2017 Workshop ......... 60 URSI France 2017 Workshop on Radio Science for Humanity ............................ 62 Journées scientifi ques URSI-France 2017 -
The Early History of Telegraphy
VOLUME 26 268 PHILIPS TECHNICAL REVIEW The early history of telegraphy G. R. M. Garratt 621.394(091) It has been said that the history of the art of commu- cian in The Hague tried to explain the causes of the .nication is the history of the human race. While such astonishing military successes of the French which had a statement is perhaps too sweeping, it is undoubtedly occurred in the meantime, he mentioned several factors: a fact that the development of communication is an in- " ... courage, aided by inventiveness which yielded the tegral part ofthe growth of civilization, Every improve- useful telegraph, the application of the balloon, an ample ment in the speed and facility with which thoughts production of saltpetre and ingenious strategic plans" [11. and ideas can be exchanged has had its social or econo- It is certainly not without significanee that it was the mic effect, and we can appreciate fully the significanee telegraph, the device which had permitted coordina- and trend of historical, social and political develop- tion of efforts on different fronts, which was given ments only if we view them against the background of priority of mention in this quotation. The telegraph the contemporary state of the art of communication. referred to was the visual telegraph or Semaphore Momentous changes in the art of communication devised by Claude Chappe. were initiated in the first half of the 19th century, and Claude Chappe - nephew of a well-known astron- in the context of this special issue of Philips Technical omer- had shown a keen interest in science when still Review it seems worth while to give some attention to a young man and had published several articles in the this most interesting period. -
Inventing Television: Transnational Networks of Co-Operation and Rivalry, 1870-1936
Inventing Television: Transnational Networks of Co-operation and Rivalry, 1870-1936 A thesis submitted to the University of Manchester for the degree of Doctor of Philosophy In the faculty of Life Sciences 2011 Paul Marshall Table of contents List of figures .............................................................................................................. 7 Chapter 2 .............................................................................................................. 7 Chapter 3 .............................................................................................................. 7 Chapter 4 .............................................................................................................. 8 Chapter 5 .............................................................................................................. 8 Chapter 6 .............................................................................................................. 9 List of tables ................................................................................................................ 9 Chapter 1 .............................................................................................................. 9 Chapter 2 .............................................................................................................. 9 Chapter 6 .............................................................................................................. 9 Abstract .................................................................................................................... -
The Myth of the Sole Inventor
Michigan Law Review Volume 110 Issue 5 2012 The Myth of the Sole Inventor Mark A. Lemley Stanford Law School Follow this and additional works at: https://repository.law.umich.edu/mlr Part of the Intellectual Property Law Commons Recommended Citation Mark A. Lemley, The Myth of the Sole Inventor, 110 MICH. L. REV. 709 (2012). Available at: https://repository.law.umich.edu/mlr/vol110/iss5/1 This Article is brought to you for free and open access by the Michigan Law Review at University of Michigan Law School Scholarship Repository. It has been accepted for inclusion in Michigan Law Review by an authorized editor of University of Michigan Law School Scholarship Repository. For more information, please contact [email protected]. THE MYTH OF THE SOLE INVENTORt Mark A. Lemley* The theory of patent law is based on the idea that a lone genius can solve problems that stump the experts, and that the lone genius will do so only if properly incented. But the canonical story of the lone genius inventor is largely a myth. Surveys of hundreds of significant new technologies show that almost all of them are invented simultaneously or nearly simultaneous- ly by two or more teams working independently of each other. Invention appears in significant part to be a social, not an individual, phenomenon. The result is a real problem for classic theories of patent law. Our domi- nant theory of patent law doesn't seem to explain the way we actually implement that law. Maybe the problem is not with our current patent law, but with our current patent theory. -
Implementing Secure Applications Thanks to an Integrated Secure Element
Implementing Secure Applications Thanks to an Integrated Secure Element Sylvain Guilley1;2;3 a, Michel Le Rolland4 and Damien Quenson4 1Secure-IC S.A.S., Tour Montparnasse, 27th floor, 75015 Paris, France 2TELECOM-Paris, Institut Polytechnique de Paris, 19 Place Marguerite Perey, 91120 Palaiseau, France 3École Normale Supérieure, 45 rue d’Ulm, Département d’informatique, CNRS, PSL University, 75005 Paris, France 4Secure-IC S.A.S. Headquarters, 15 rue Claude Chappe, Bât. B, 35510 Cesson-Sévigné, France Keywords: Integrated Secure Element, Host Protection, Certification Schemes, Security Flexibility, Internet of Things. Abstract: More and more networked applications require security, with keys managed at the end-point. However, tradi- tional Secure Elements have not been designed to be connected. There is thus a need to bridge the gap, and novel kinds of Secure Elements have been introduced in this respect. Connectivity has made it possible for a single chip to implement multiple usages. For instance, in a smart- phone, security is about preventing the device from being rooted, but also about enabling user’s online privacy. Therefore, Secure Elements shall be compatible with multiple requirements for various vertical markets (e.g., payment, contents protection, automotive, etc.). The solution to this versatility is the integration of the Secure Element within the device main chip. Such approach, termed iSE (integrated Secure Element), consists in the implementation of a subsystem, endowed to manage the chip security, within a host System-on-Chip. The iSE offers flexibility in the security deployment. However, natural questions that arise are: how to pro- gram security applications using an iSE? How to certify those applications, most likely according to several different schemes? This position paper addresses those questions, and comes up with some key concepts of on-chip security, in terms of iSE secure usage. -
In This Issue
58 j u l y Voice 2011 of the ISSN 1948-3031 Industry Regional Systems Edition In This Issue: The State of Submarine Cables in Africa The Communications Blockade SubOptic 2013 – April in Paris ISSN 1948-3031 Submarine Telecoms Forum is published bimonthly by WFN Strategies. The publication may not be reproduced or transmitted in any form, in whole or in part, very year at this time I have a the placement of the maillot jaune on a without the permission of the publishers. problem of focus. Since the 2nd Frenchmen on Bastille Day in real time Submarine Telecoms Forum is an independent com mercial publication, of July my mind has found it while sitting at my desk in Virginia serving as a freely accessible forum for E difficult to stay concentrated on the job seems not only fitting, but also makes one professionals in industries connected with submarine optical fibre technologies and at hand. Emails have gone unanswered; mindful of the things we in our industry techniques. phone messages have not been promptly make possible every day. Liability: while every care is taken in preparation of this publication, the actioned; the staff has noticed a certain publishers cannot be held responsible for So, call or email after the 24th and I promise the accuracy of the information herein, or vacuous look in my eyes. Even a week at any errors which may occur in advertising to be more attentive and engaged. In the or editorial content, or any consequence the beach has not positively impacted. arising from any errors or omissions.