kids encyclopedia robot

Image: Farnsworth image dissector tube

Kids Encyclopedia Facts
Original image ‎(839 × 486 pixels, file size: 56 KB, MIME type: image/jpeg)

Description: One of the first experimental video camera tubes, called an image dissector, designed by American engineer Philo T. Farnsworth in 1930.
Title: Farnsworth image dissector tube
Credit: Retrieved March 19, 2014 from Philo T. Farnsworth, "Scanning with an electric pencil" in Television News magazine, Popular Book Corp., New York, Vol. 1, No. 1, March-April 1931, p. 51, fig. A on [1] website
Author: Philo T. Farnsworth
Permission: This 1931 issue of Television News magazine would have the copyright renewed in 1959. Online page scans of the Catalog of Copyright Entries, published by the US Copyright Office can be found here. [2] Search of the Renewals for Periodicals for 1958, 1959 and 1960 show no renewal entries for Radio World. Therefore the magazine's copyright was not renewed and it is in the public domain.
Usage Terms: Public domain
License: Public domain
Attribution Required?: No

The following page links to this image:

kids search engine
All content from Kiddle encyclopedia articles (including the article images and facts) can be freely used under Attribution-ShareAlike license, unless stated otherwise.