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Image: Ernst Ruhmer demonstrating simple television system (1909)
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Description: Photograph of Ernst Ruhmer demonstrating his experimental television system, which was capable of transmitting the images of simple shapes using a 25-element selenium cell receiver. The original caption read "Ruhmer's new apparatus for transmitting light by selenium cells."
Title: Ernst Ruhmer demonstrating simple television system (1909)
Credit: Illustration included in "Another Electric Distance-Seer", Literary Digest, September 11, 1909, page 384.
Author: Magazine article
Usage Terms: Public domain
License: Public domain
Attribution Required?: No
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