Category:Nipkow disks

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English: This category is for the en:Nipkow disk, a flat metal disk with a spiral pattern of holes in it, which was used in many of the first experimental mechanical-scan television systems until the 1940s. It was invented in 1885 by Paul Julius Gottlieb Nipkow as part of his electrical telescope.
Nipkow disk 
image scanning device
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Pages in category "Nipkow disks"

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Media in category "Nipkow disks"

The following 15 files are in this category, out of 15 total.