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WCBS-TV
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WCBS-TV, branded CBS New York, is a television station in New York City, serving as the flagship of the CBS network. It is owned and operated by the network's CBS News and Stations division alongside Riverhead, New York–licensed independent station WLNY-TV. The two stations share studios within the CBS Broadcast Center on West 57th Street in Midtown Manhattan; WCBS-TV's transmitter is located at One World Trade Center.
Reporter Kathryn Brown reporting on the Summer 2012 North American heat wave from the Times Square subway station on July 18, 2012.
Reporter Kathryn Brown reporting on the Summer 2012 North American heat wave from the Times Square subway station on July 18, 2012.
Mechanical television
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Mechanical television or mechanical scan television is an obsolete television system that relies on a mechanical scanning device, such as a rotating disk with holes in it or a rotating mirror drum, to scan the scene and generate the video signal, and a similar mechanical device at the receiver to display the picture. This contrasts with vacuum tube electronic television technology, using electron beam scanning methods, for example in cathode-ray tube (CRT) televisions. Subsequently, modern solid-state liquid-crystal displays (LCD) and LED displays are now used to create and display television pictures.
Watching a homemade mechanical-scan television receiver in 1928. The "televisor" (right) which produces the picture uses a spinning metal disk with a
Watching a homemade mechanical-scan television receiver in 1928. The "televisor" (right) which produces the picture uses a spinning metal disk with a series of holes in it, called a Nipkow disk, in front of a neon lamp. Each hole in the disk passing in front of the lamp produces a scan line which makes up the image. The video signal from the television receiver unit (left) is applied to the neon lamp, causing its brightness to vary with the brightness of the image at each point. This system produced a dim orange image 1.5 inches (3.8 cm) square, with 48 scan lines, at a frame rate of 7.5 frames per second.
Ernst Ruhmer demonstrating his experimental television system, which was capable of transmitting 5×5 pixel images of simple shapes over telephone line
Ernst Ruhmer demonstrating his experimental television system, which was capable of transmitting 5×5 pixel images of simple shapes over telephone lines, using a 25-element selenium cell receiver (1909)
Baird and his television receiver
Baird and his television receiver
Jenkins Television Co. rotating disk television camera, 1931
Jenkins Television Co. rotating disk television camera, 1931