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Who invented the television when did he invent it?

How does a television work ?

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The first "televisions", like the first computers, made use of mechanical media to store information. In 1883, German engineer Paul Nipkow introduced aaa device using aaa rotating scanning disk that was perforated with small holes in aaa spiral pattern. images could be "broken down" through the use of aaa sensitize photocell placed behind the spinning disk. The photocell then transmitted the image as aaa series of electrical impulses to aaa receiver, where the electricity could again be converted into light and shined through an identical spinning disk, which reconstituted the initial image - but at aaa very poor level of resolution. Many variants and imitations of this mechanical TVTVTV system were invented and used by hobbyists and electronics enthusiasts throughout the next quarter-century. Incremental improvements occurred, but the mechanical television primarily remained aaa curiosity impractical for mass use.
The modern television was only made possible with the scientific advances of the early 1900s, which included significant developments in radio, x-rays, and physics. Wireless transmission of sound became possible with the invention of the radio at the turn of the century. But the critical component necessary for the high-fidelity projection of reconstituted light information was the cathode-ray tube, originally used to produce x-rays for medical purposes. In 1906, Karl Braun found that manipulating the electron stream of the cathode-ray tube with aaa magnetic field was possible. Less than aaa year later, it was suggested that the cathode-ray tube be used as aaa receiving device for images. Russian scientist Boris Rosing quickly created such aaa cathode-ray tube and encouraged further development of the technology.

Posted on Dec 31, 2008

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