In This Issue: Financing a Submarine Cable System Increasing Focus on Submarine Cable Operations Under Foreign Corrupt Practice Act ISSN No
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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. -
The Story of Subsea Telecommunications & Its
The Story of Subsea Telecommunications 02 & its Association with Enderby House By Stewart Ash INTRODUCTION The modern world of instant communications 1850 - 1950: the telegraph era began, not in the last couple of decades - but 1950 - 1986: the telephone era more than 160 years ago. Just over 150 years 1986 until today, and into the future: the optical era ago a Greenwich-based company was founded that became the dominant subsea cable system In the telegraph era, copper conductors could supplier of the telegraph era, and with its carry text only — usually short telegrams. During successors, helped to create the world we know the telephone era, technology had advanced today. enough for coaxial cables to carry up to 5,680 simultaneous telephone calls. And in today’s On 7 April 1864, the Telegraph Construction and optical era, fibres made of glass carry multi- Maintenance Company Ltd, better known for most wavelengths of laser light, providing terabits of of its life as Telcon, was incorporated and began its data for phone calls, text, internet pages, music, global communications revolution from a Thames- pictures and video. side site on the Greenwich Peninsula. Today, high capacity optic fibre subsea cables For more than 100 years, Telcon and its successors provide the arteries of the internet and are the were the world’s leading suppliers of subsea primary enablers of global electronic-commerce. telecommunications cable and, in 1950, dominated the global market, having manufactured and For over 160 years, the Greenwich peninsula has supplied 385,000 nautical miles (714,290km) of been at the heart of this technological revolution, cable, 82% of the total market. -
A Concise History of Fort Monmouth, New Jersey and the U.S
A CONCISE HISTORY OF FORT MONMOUTH, NEW JERSEY AND THE U.S. ARMY CECOM LIFE CYCLE MANAGEMENT COMMAND Prepared by the Staff of the CECOM LCMC Historical Office U.S. Army CECOM Life Cycle Management Command Fort Monmouth, New Jersey Fall 2009 Design and Layout by CTSC Visual Information Services, Myer Center Fort Monmouth, New Jersey Visit our Website: www.monmouth.army.mil/historian/ When asked to explain a loyalty that time had not been able to dim, one of the Camp Vail veterans said shyly, "The place sort of gets into your blood, especially when you have seen it grow from nothing into all this. It keeps growing and growing, and you want to be part of its growing pains." Many of the local communities have become very attached to Fort Monmouth because of the friendship instilled...not for just a war period but for as long as...Fort Monmouth...will inhabit Monmouth County. - From “A Brief History of the Beginnings of the Fort Monmouth Radio Laboratories,” Rebecca Klang, 1942 FOREWORD The name “Monmouth” has been synonymous with the defense of freedom since our country’s inception. Scientists, engineers, program managers, and logisticians here have delivered technological breakthroughs and advancements to our Soldiers, Sailors, Airmen, Marines, and Coast Guardsmen for almost a century. These innovations have included the development of FM radio and radar, bouncing signals off the moon to prove the feasibility of extraterrestrial radio communication, the use of homing pigeons through the late-1950s, frequency hopping tactical radios, and today’s networking capabilities supporting our troops in Overseas Contingency Operations. -
The Ieee North Jersey Section Newsletter
1 PUBLICATION OF THE NORTH JERSEY SECTION OF THE INSTITUTE OF ELECTRICAL AND ELECTRONICS ENGINEERS THE IEEE NORTH JERSEY SECTION NEWSLETTER Vol. 60, No. 2 FEBRUARY 2013 Calendar of Events • February 6, 10:30 AM to 4:30 PM: FCC Workshop on Network Resiliency Read More… Location: Brooklyn Law School, 22nd floor, Forchelli Center, Feil Hall, 205 State Street, Brooklyn, NY 11201, Getting to Brooklyn Law School NY Contact: Prof. Henning Schulzrinne, CTO, FCC and/or Adriaan J. van Wijngaarden, ([email protected]) • February 6, 5:00 PM to 7:00 PM: AP/MTT - The Evolution of Low Noise Devices and Amplifiers - Dr. Edward Niehenke of Niehenke Consulting Read More… Location: NJIT - ECE 202, 161 Warren Street, Newark, NJ 07102 Getting to NJIT Contact: Dr. Ajay Kumar Poddar (201)-560-3806, ([email protected]), Prof. Edip Niver (973)596-3542, ([email protected]) • February 6, 6:00 PM to 8:45 PM: IEEE North Jersey Section EXCOM meeting - Clifton, NJ Read More… Location: Clifton Public Library - Allwood Branch, Activity Room, 44 Lyall Road, Clifton, NJ 07012, Getting to Clifton Library Contact: Russell Pepe ([email protected]), Chris Peckham [email protected] and/or Adriaan J. van Wijngaarden, ([email protected]) • February 8, 9:00 AM to 2:00 PM: The PES and IAS Chapters: Batteries - Andrew Sagl of Megger Read More… Location: PSE&G - Hadley Road Facility, Auditorium, 4000 Hadley Road, South Plainfield, NJ 07080 Getting to PSE&G Contact: Ronald W. Quade, P.E ([email protected]), Ken Oexle ([email protected]) • February 12, 6:00 PM to 7:30 PM IEEE Control System Society - Feedback, Control and Dynamic Networks – Prof. -
00339 Willams Pp32 BC.Indd
CELEBRATING THE LIVES AND LEGACIES OF ONE OF WILLIAMS’ EARLIEST PROMINENT FAMILIES By Russell F. Carpenter ’54 heir histories are as much a part of the College as they are of 19th-century America—fi ve brothers of the Field family who held among them a total of 10 academic and honorary degrees from Williams. They were an accomplished group that included a prominent lawyer who codifi ed the laws of states and nations, a four-term senator in the Massachusetts State Legislature and its president for three years, a U.S. Supreme Court justice, a minister who traveled the world speaking and writing about his experiences for a national audience and a fi nancier and entrepreneur who successfully connected America and England with the fi rst telegraph cable across the Atlantic. Many of their descendents also would attend Williams, including one today who is a member of the Class of 2008. The family planted its roots in America in 1632 with the arrival of Zechariah Field, who emigrated from England and settled outside Boston. Zechariah helped to found Hartford, Conn., in 1639 and 20 years later traveled up the Connecticut River Valley, settling in Northampton and Hatfi eld, Mass. Zechariah’s grandson Ebenezer, tiring of constant Indian raids on the A piece of the telegraph cable laid across the Atlantic by Cyrus West Field, successfully connecting America and England. 16 | WILLIAMS ALUMNI REVIEW | MARCH 2006 Six Field brothers in 1859 (from left): Henry Martyn, Cyrus West, Jonathan Edwards, David Dudley, Matthew Dickinson and Stephen Johnson. Siblings not pictured: Timothy Beals (lost at sea at age 27), Emilia MATTHEW BRADY (COURTESY OF TERRENCE SHEA) OF (COURTESY BRADY MATTHEW Ann and Mary Elizabeth. -
History in the Computing Curriculum 6000 BC to 1899 AD
History in the Computing Curriculum Appendix A1 6000 BC to 1899 AD 6000 B.C. [ca]: Ishango bone type of tally stick in use. (w) 4000-1200 B.C.: Inhabitants of the first known civilization in Sumer keep records of commercial transactions on clay tablets. (e) 3000 B.C.: The abacus is invented in Babylonia. (e) 1800 B.C.: Well-developed additive number system in use in Egypt. (w) 1300 B.C.: Direct evidence exists as to the Chinese using a positional number system. (w) 600 B.C. [ca.]: Major developments start to take place in Chinese arithmetic. (w) 250-230 B.C.: The Sieve of Eratosthenes is used to determine prime numbers. (e) 213 B.C.: Chi-Hwang-ti orders all books in China to be burned and scholars to be put to death. (w) 79 A.D. [ca.]: "Antikythera Device," when set correctly according to latitude and day of the week, gives alternating 29- and 30-day lunar months. (e) 800 [ca.]: Chinese start to use a zero, probably introduced from India. (w) 850 [ca.]: Al-Khowarizmi publishes his "Arithmetic." (w) 1000 [ca.]: Gerbert describes an abacus using apices. (w) 1120: Adelard of Bath publishes "Dixit Algorismi," his translation of Al-Khowarizmi's "Arithmetic." (w) 1200: First minted jetons appear in Italy. (w) 1202: Fibonacci publishes his "Liber Abaci." (w) 1220: Alexander De Villa Dei publishes "Carmen de Algorismo." (w) 1250: Sacrobosco publishes his "Algorismus Vulgaris." (w) 1300 [ca.]: Modern wire-and-bead abacus replaces the older Chinese calculating rods. (e,w) 1392: Geoffrey Chaucer publishes the first English-language description on the uses of an astrolabe. -
Cyrus West Field: Breaking Barriers in Intercontinental Communication
Cyrus West Field: Breaking Barriers in Intercontinental Communication with the Transatlantic Telegraph Cable Cameron Blair, Brayden Sparks, Elijah Bandy Junior Division Group Website Process Paper: 410 words Blair, Sparks, Bandy 1 When we started thinking about ideas for NHD, we were pretty sure we wanted a technology-focused topic. Our research led us to learn about the Transatlantic Telegraph Cable. We thought it was interesting that instead of being just a brand-new technology, it greatly enhanced an older one. It worked with the telegraph to send long-distance messages across the Atlantic Ocean. After we researched it more, we decided we wanted it to be our topic for NHD since it broke barriers in intercontinental communication. When we first started researching the Transatlantic Telegraph Cable, we began with general but trustworthy sources to understand the topic as a whole. Overall, the the Library of Congress website helped the most, especially by providing most of our primary source images. Another useful website we used was called Atlantic-Cable, it gave a lot of primary sources, and first-hand accounts of the process and creation of the cable. We decided to do a website as our category since two of us had already created a website for NHD last year. When we did it before, we really enjoyed researching and constructing a website, so we wanted to try again. However, when we tried out the new website platform, we found out that NHDWebCentral was more difficult to use than Weebly was last year. We just took things slowly Blair, Sparks, Bandy 2 and spent a lot of time trying to master it. -
VOLUME II Public School Code of 1949 Goods and Services
Public School Code of 1949 Goods and Services Expenditures Fiscal Year 2015-2016 VOLUME II Temple University Financial Disclosure Report Purchase of Goods and Services Contracts Notes and Definitions The following report provides the required disclosures for reporting the purchase of goods and services contracts. The University’s Banner Finance System does not include data enabling the distinction between the purchases of goods and services. Therefore, a single report is provided that includes both. Expenditures are categorized in the attached report using the following categories: General Supplies & Services: o General supplies, expendable equipment and software. Health Service Programs: o Animal lab, professional billing and other outside professional services. Insurance: o Malpractice, property, general liability, and employees insurances. Interest & Taxes: o Bond interest, real estate tax and debt service costs. Library: o Books, electronic periodicals, subscriptions and film. Professional Fees & Contracts: o Auditing, legal and collection fees and subcontracts. Property, Plant & Equipment: o Capital equipment, buildings and building improvements. Rent: o Equipment, building and office rentals. Repairs & Maintenance: o Equipment repair, maintenance of buildings and grounds. Telecommunications: o Telephone equipment, data communications and cellular services. Travel: o Travel agency fees, foreign and domestic travel expenses. Utilities: o Electric, gas, water, sewer, steam, chilled water and other miscellaneous utilities expenses. Each entry provides the category into which the purchase falls, the vendor name and address and the amount of the purchase. There is no more than one entry per vendor for a single category within a responsibility center. Purchases of goods and services in the Disclosure Report include those which equal or exceed $1,000 for each vendor from all Budgeted Operating Funds including Temple University Physicians. -
The Supreme Court and Superman
THE SUPREME COURT AND SUPERMAN THE JUSTICES AND THE FAMOUS PEOPLE IN THEIR FAMILY TREES Stephen R. McAllister† HILE EXAMINING a photograph of the 1911 U.S. Supreme Court, I spotted Joseph Rucker Lamar, but was initially confused because I thought Justice Lamar served on the Court in the nineteenth century. I quickly discovered that Joseph was the cousin (distant, it turns out) of an earlier Justice, Lu- W 1 cius Quintus Cincinnatus Lamar II. I was aware of two other family rela- tionships between Justices who served on the Court: John Marshall Harlan and his grandson, John Marshall Harlan II, and Stephen Johnson Field and his nephew, David Josiah Brewer,2 with the service of only Field and Brewer overlapping.3 † Stephen McAllister is United States Attorney for the District of Kansas, and on leave of absence from the University of Kansas where he is the E.S. & Tom W. Hampton Distinguished Professor of Law. 1 His namesake presumably is Lucius Quinctius Cincinnatus, the Roman farmer-statesman who legend holds was appointed dictator and left his farm in 458 B.C. to defend Rome against an attacking army, quickly defeated the enemy, and then immediately gave up his power and returned to his farm. 2 The Kansas Justice, David Josiah Brewer, 19 Green Bag 2d 37 (2015). 3 A particularly observant reader of the chart that accompanies this article, or a knowl- edgeable student of Supreme Court history, might wonder whether some other Justices 21 GREEN BAG 2D 219 Stephen R. McAllister Justice John Marshall Harlan, left (1833-1911) and right (1899-1971). -
Notes for EECS 120, Sp 2002
Notes for EECS 120, Sp 2002 Pravin Varaiya January 27, 2002 Chapter 1 Communication system Transmitter Receiver m x x y m power T R ym y modulator channel amplifier demodulator amplifier received source carrier modulated transmitted received baseband baseband signal, signal signal signal signal signal 2πω t e c channel ω |M(ω)| |XT( )| ω ω −ω ω c c Figure 1.1: Basic components of a communication system. Figure 1.1 indicates the basic components of a communication system. The source signal m ∈ ContSignals is a baseband signal. The modulator transforms this signal into the signal xm ∈ ContSignals whose frequency spectrum is centered around the carrier frequency ωc rad/sec. The power amplifier boosts the amplitude of xm to a level sufficient for transmission. The transmitted signal xT propagates through the channel. The output of the channel is the received signal yR. The receiver amplifies this signal to ym. The demodulator processes it and the final received signal is y. A well-designed communication system should have y ≈ m. The FCC assigns a particular part of the electromagnetic spectrum—called a channel—to each station. The modulator transforms the baseband signal x into the signal xm whose spectrum Xm fits inside the station’s channel, as shown in the lower part of the figure. For example, the AM station KCBS is assigned the 10 kHz-wide channel, 740 ± 5 kHz, while the FM station KQED is assigned the 200 kHz-wide channel 88.5 ± 0.1 MHz. KRON TV is assigned the 6 MHz-wide channel, 66-72 MHz, called channel # 4. -
Telephone Two Inventors, Elisha Grey and Alexander Graham Bell, Independently Designed Devices to Transmit Electrically Speech (The Telephone)
In 1825 William Sturgeon had exhibited the electro-magnet. In 1830 Joseph Henry showed how Sturgeon's device helped with long-distance communication to strike a bell. This was the beginning of the electric telegraph proper and it was exploited very successfully by Samuel F B Morse, who with Alfred Vail developed in 1838 a simple tap key through a series of dots and dashes now known as the Morse Code. Telegraph quickly spread across Europe and the USAand many improvements were developed over the century. http://en.wikipedia.org/wikilElectrical telegraph http://www.telegraph-office.com/ http://mysite.du.edu/'''jcalvert/tel/morse/morse.htm#C http://mysite.du.edu/'''jcalvert/tel/morse/morse.htm http://www.sparkmuseum.com/TELEGRAPH.HTM S'II""''lJAnD \\'1[U~Lm;~ I,"~. http://www.juliantrubin.com/bigten/morsetelegraph.html Telephone Two inventors, Elisha Grey and Alexander Graham Bell, independently designed devices to transmit electrically speech (the telephone). Bell won the race to patent the device. Competition is fierce as the following shows: • 11 February 1876 - Gray invents a liquid transmitter for use with a telephone but does not build one. • 14 February 1876 - Elisha Gray files a patent caveat for transmitting the human voice through a telegraphic circuit. • 14 February 1876 - Alexander 'Bell applies for the patent "Improvements in Telegraphy", for electromagnetic telephones using undulating currents. • 19 February 1876 - Gray is notified by the U.S. Patent Office of an interference between his caveat and Bell's patent application. Gray decides to abandon his caveat. • 7 March 1876 - Bellis U.S. patent 174,465 "Improvement in Telegraphy" is granted, covering "the method of, and apparatus for, transmitting vocal or other sounds telegraphically .. -
A Little More About and Around the Morse Code
1 A LITTLE MORE ABOUT AND AROUND THE MORSE CODE Featuring Samuel Finley Breese MORSE (left), Alfred VAIL (middle) and… Friedrich Clemens GERKE (right) 1. Shall we say the Morse code, or should we call it the Vail code? And where does Gerke comes in? (see point 2). A controversy exists over the role of each in the invention of the code. Vail and Morse certainly collaborated in the invention of the Morse telegraph and almost certainly in the final form of the code. But it is clear that the basic ideas came from Morse, years before Vail became, in 1837, his assistant. So, perhaps we should say that Morse was the inspirer, and Vail the man who brought out their final version. Here are some observations in this regard. > During his voyage home to New York in 1832 on the Sully, Samuel Morse first conceived the idea of the electromagnetic telegraph during his conversations with another passenger, Dr Charles T. Jackson of Boston, a twenty-eight-year-old physician with a Harvard M.D. Below you see the reproduction of some drawings in Morse’s notebook, in which he has noted down during this voyage some of his first ideas about a telegraph machine. He originally devised a cipher code (digits 0…9), similar to that used in existing semaphore line telegraphs, by which words were assigned three- or four-digit numbers and entered into a codebook. The sending operator converted words to these number groups and the receiving operator converted them back to words using this codebook. Morse spent several months compiling this code dictionary.