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Nipkow Spiral Disk

Published 11.11.2010 Presenter Anton Pankratov

Nipkow Spiral Disk
The principle of image dissection had been one of the first steps on the way to the television. Nipkow spiral disk was the first image dissection device. Earlier, in 1873 W. Smith and J. Mayhem discovered selenium photosensitivity (inner photo effect). In 1888 A. G. Stoletov created a photo electric cell with an external photoeffect ...