<h2 class = 'uawtitle'>Basic Overview Of TV Covers</h2><br />
<div style='font-style:italic;' class='uawbyline'>by Minnie Whitley</div><br /><br />
<div class='uawarticle'>Television is a box-shaped device that can receive television signals and turn them into moving images on a screen with audio to its speakers. The devices are built in a transparent and photosensitive cathode. Signals are transferred to the transmitter from which they are sent to the recipients. The signals may, among other things, be captured by an antenna, a satellite dish (if there is satellite <A href="http://www.customtvwraps.com">TV covers</A>), or cables.<br />
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The images are built up as dots on vandrete stresses, but it happens so fast - 50 times per second, for the newer televisions - 100 times per second - that humans can not even comprehend it. All you see are pictures that move. There are several main systems, including DVB - used in most of Europe; ATSC - most of North America and Latin America, USA; Analog TV - three different color television standards in various parts of the world.<br />
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If the electrons from the blue cannon hits a blue dot, this action lights up the pixel. If a red, a blue and a green dot are next to each other, it shines with a certain brightness which the eye perceives as white. By mixing the three colors, most colors are rendered. This is called additive color mixing.<br />
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The flat-screen TVs are sets where the image is reproduced with LCD or plasma technology in place of CRTs. New technologies, such as OLED promise to create even thinner displays. Although projection technology can be used to render the image, either as front projection where the image is projected on a special projection screen, or other any surface, or rear projection, where the projector and screen are often built into a cabinet.<br />
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But Charles Jenkins and Logie Baird's efforts were not met with any kind of respect. In fact, they faced derision and indifference to begin with. An article from the British newspaper, the British journal wrote that television was was a waste of time because you could not make money from it. But despite this, they continued their work, and in 1928 regular television broadcasts began. Not many years later the first television boom became a reality and thousands of viewers had now invested in a television or built a primitive one.<br />
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The maiden regular television broadcasts took place on 11 May in 1928 in New York, and the transatlantic television broadcast in the same year, using Baird's mechanical systems. The first television sets were radios with a TV unit consisting of a neon tube and a spinning disk which could show a picture. There were also other techniques to transfer photos, such as a spinning top with angled mirrors rotated rapidly.<br />
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Televisions have mainly been used to entertain, inform and educate. They brought visual news and information to a broad audience, this created some major developments in aspects such as propaganda and mind manipulation, where sublime messages were often used in advertising.<br />
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TV changed the way war was perceived, in the sense that it showed some gruesome images that some parties would rather have kept secret. Michael J. Arlen, author of Living Room War, described the Vietnam War as the first "family room war" because televisions made the Vietnam war accessible to the ordinary citizen.<br />
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