HISTORY OF FIBER OPTICS * In 1840‚ Daniel Colladon and Jacques Babinet demonstrated the principle of guiding light by refraction. * It was followed by a public demonstration by John Tyndal in 1852. In 1870‚ Tyndal wrote about the property of total internal reflection in his book about the nature of light. * In 1880‚ Alexander Graham Bell and Sumner Tainter invented the Photophone‚ a device capable of transmitting sound waves over beam of light. This is considered as mankind’s first attempt
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Conservative throne speech promise to provide more choice for Canadian cable customers. In an announcement Thursday in Vancouver‚ she said the federal government has asked the broadcast regulator to prepare a report on how pick-and-pay television service might work and what steps might have to be taken to unbundle TV services. Federal government wants to unbundle cable packages Bundle busting: Is à la carte cable TV better for consumers? “We are convinced that this is something that
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Improved Methodology for Data Transmission and Object Serialization using JSON Siddharth Jogia School of Information Technology & Engineering‚ VIT University‚ Vellore - 632014‚ Tamilnadu‚ India‚ siddharthjogia@gmail.com Abstract In this paper‚ it has been discussed about the current technological era of data transmission and object serialization in web application. This paper will gives the analytical research in the form of two data serializing approaches used in web applications‚
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Electric power transmission "Electric transmission" redirects here. For vehicle transmissions‚ see diesel-electric transmission. [pic] [pic] 400 kV high-tension transmission lines near Madrid Electric power transmission or "high-voltage electric transmission" is the bulk transfer of electrical energy‚ from generating power plants to substations located near population centers. This is distinct from the local wiring between high-voltage substations and customers‚ which is typically referred
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power as microwaves from one place to another is in order to reduce the transmission and distribution losses. This concept is known as Microwave Power transmission (MPT). This paper is mainly concentrated on : i) The most popular concept known as Tesla Theory‚ ii) The microwave power transmission(MPT) called Solar power satellite‚ and iii) The highly efficient fiber lasers for wireless power transmission. The output microwave power ranges from 50 W to 200 W at 2.45 GHz. KEYWORDS: Microwave Power
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Transmission Media • Transmission medium – Physical path between transmitter and receiver – May be guided (wired) or unguided (wireless) – Communication achieved by using em waves • Characteristics and quality of data transmission – Dependent on characteristics of medium and signal – Guided medium ∗ Medium is more important in setting transmission parameters – Unguided medium ∗ Bandwidth of the signal produced by transmitting antenna is important in setting transmission parameters ∗ Signal directionality
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Microwave Transmission Basics Microwave Transmission Basics Table of Contents • MW Advantages • MW Frequency bands • MW Link elements • Antenna Radiation Pattern • MW Alarms Microwave Transmission Basics Features Advantages Rapid Deployment – A microwave link can be installed in as little as one day No right-of-way issues – Radio spans all obstacles such as roads‚ railways‚ etc.‚ avoiding any requirement to seek permissions that inevitably are costly and introduce time delays
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Fiber Optics is the Future Tech Talk Advisory: I saw this video and it got my inner tech geek all excited. by Rothalack 6 months ago http://www.gameskinny.com/d3nr8/fiber-optics-is-the-future FDDI stands for Fiber Distributed Data Interface. FDDI uses optical fiber to distribute its data. Standard FDDI will run at 100Mb/s. FDDI is not regularly used because of how expensive it is‚ but offers many advantages that might make you think otherwise. The first and I think most important is the
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ABSTRACT: Transmission or distribution of 5o Hz or 60 Hz electrical energy from the generating point to the consumers’ end without any physical wire has yet to as a familiar and viable technology. This paper focuses on the past and future possible advancements in WPT and explaining why it has still not come into practical utility. Wireless energy transfer has been around for about a century‚ but as of yet has only found usage in things like electric toothbrush rechargers and specialty applications
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Comparison of DSL and CABLE Name: Institution: Comparison of DSL and CABLE DSL and cable are the common broadband modems used to convert analog into digital information on the internet. DSL is a modem that connects the computer to a phone enabling the transmission of digital data. A DSL eliminates the need to purchase an external modem. Internet Service Provider companies offer DSL free with a subscription to their services. A DSL connects on the USB port of a computer with a sending
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