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ID number:108400
 
Evaluation:
Published: 11.01.2004.
Language: English
Level: Secondary school
Literature: n/a
References: Not used
Extract

The thought of television has been around since the 1800's. In early 1879 cartoonist and drew pictures of people watching sports and wars in a wall screen. Many people contributed to this invention. Paul Nipkow and John Logie Baird helped create the first televisions. They invented a spinning disk that transmitted still pictures, which looked like blurred shadows. A man from Idaho named Philo T. Farnsworth and Vladimir Zworykin invented the eye of the television camera, and the television screen. They are known as the modern fathers of television and are mostly responsible for the invention (Calabrano, 3-4).
The first televisions were only black and white pictures. The picture consists of pixels. The pixels can tell how dark or how light one tiny part of the image is. The first cameras inside television created blurred pictures without any detail. Inside each television is an electron beam. The beam moves from the top left corner and moves to the right. Then it moves back again and down to the next line. The first cameras could only read 13 lines. By 1941 the television cameras could read 525 lines. This provided the television with a much clearer picture (Riehecky19-20).

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