19 November 2013 Radar: The Protector of Civilization The invention of the radar was a very significant advance in history. Once the year 1887 passed‚ Heinrich Hertz had developed the principles necessary to conduct a radar by proving radio waves could reflect off metallic objects. Then‚ in 1935‚ Robert Watson-Watt constructed and patented the first radar to show what wonderful things one machine can do. To this date‚ the radar has presented a vast amount of programs that amaze society in many
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the development of devices concerned with engineering is a branch . 2 Numerous devices used in everyday life are manufactured using electronic elements . Nearly every electronic device is in industrial products . In the fields of electronics ‚ radio‚ radio ‚ telephone‚ radar‚ television‚ various system controls are Komputer ‚ measurement and test equipment‚ medical devices and many more will enter . 3 Electronics based on 17 ‚ 18 and 19 century with the discoveries made on electricity have been
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Italian Guglielmo Marconi. De Forest ’s doctoral dissertation on the "Reflection of Hertzian Waves from the Ends of Parallel Wires" is said to possibly be the first doctoral thesis in the United States on the subject that was later to become known as radio. (Kraeuter‚ 76). His first job was with the Western Electric Company in Chicago‚ where‚
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during the 20th |the invention of the printing press‚ radio‚ telephone and television. The printing press | |century? |gave us the ability to print papers and tabloids on a large scale. Before this each page | | |had to be done separate. This lead to the newspaper and magazine to reach millions of | | |readers. Next would be the radio. This enabled voices and music to be broadcast through
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Broadcast Journalism Broadcast journalism provides a timely medium for individuals to obtain their news. Reporters have a duty to report the news in an accurate‚ fair‚ clear and interesting manner. Broadcast journalism differs to written journalism as radio and television are designed to be seen and heard sooner and more often than a daily or weekly newspaper therefore scripts for speaking to be broadcasted tend to be written differently than text to be read by the public. | * | Broadcast
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Bharathi 17. Recent Innovations in AIR/FM Radio 18. Origin and Development of TV in the world 19. Origin and Development of TV in India/Doordarshan/SITE 20. Prasar Bharathi Act 1990 21. Commercial Service in DD/ DD through 70s and 80s 22. Public service broadcasting and social responsibility/Role of TV in Promoting Development and Social Change 23. Programme Content of AIR 24. Programme Content of DD 25. Contribution of radio to development 26. Growth and Impact of Satellite
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Cell Phones Might Cause Cancer I remember the first time my grandfather told me he had cancer. My assumption was that it was all health related. Yet I learned that it was also caused by the usage of electronic devices. I was shocked and surprised of this news. Will this start to affect the future of my generation? It seems like everyone is on some type of electronic device everywhere you look.. Cell phones first became widely available in the United States in the 1990s. Ever since then the use
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revolution of the Information and Communication Technology (ICT)‚ the television‚ radio and print media had been the main source of mass communication. The development of mass media in Nigeria dates back to 1970 with the print media being the first having a coverage of about 45% with more penetration in the urban areas. The radio soon followed having a more widely reached audience though the availability of the radio at earlier stages was low and in 1990 then came the emergence of the television having
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in the 20th century The mass media included television‚ radio‚ newspaper and telephone. Before television‚ there was morse code‚ but later the telephone came in to play‚ people decided that it was much easier than waiting for a telegram. Before the invention of television there was the radio‚ this was considered the main form of entertainment for a family‚ the radio contained talk shows and advertisements read over the radio from different stores. Newspapers have been around for
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more forms of mass communication‚ which include newspapers‚ magazines‚ TV‚ and radio. Using these to distribute information is far more efficient than shouting. Mass media plays an important role in the life of society. Mass media includes various types of media such as television‚ radio‚ newspapers and magazines. Reading newspapers and magazines‚ watching TV‚ listening to the news on the radio are our main means of getting information. TV is the most popular kind of mass
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