File:Ernst Ruhmer demonstrating simple television system (1909).jpg
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Summary
| Description |
English: 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." |
| Date | |
| Source | Illustration included in "Another Electric Distance-Seer", Literary Digest, September 11, 1909, page 384. |
| Author | Magazine article |
Licensing
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This work is in the public domain in the United States because it was published (or registered with the U.S. Copyright Office) before January 1, 1929.
 Public domain works must be out of copyright in both the United States and in the source country of the work in order to be hosted on the Commons. If the work is not a U.S. work, the file must have an additional copyright tag indicating the copyright status in the source country.
Note: This tag should not be used for sound recordings. |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 00:39, 30 January 2018 | | 674 × 510 (151 KB) | Thomas H. White | User created page with UploadWizard |
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