File:Ronalds telegraph.png
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Summary
| Description |
English: Francis Ronalds' telegraph experiment |
| Date | published 1823 |
| Source | Francis Ronalds, Descriptions of an Electrical Telegraph, London: R. Hunter, 1823 |
| Author | unknown/illegible artist |
Licensing
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This work is in the public domain in its country of origin and other countries and areas where the copyright term is the author's life plus 100 years or fewer.  You must also include a United States public domain tag to indicate why this work is in the public domain in the United States.
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| This file has been identified as being free of known restrictions under copyright law, including all related and neighboring rights. | |
Original upload log
The original description page was here. All following user names refer to en.wikipedia.
| Date/Time | Dimensions | User | Comment |
|---|---|---|---|
| 2018-12-18 01:51 | 820×505× (482519 bytes) | Spinningspark | {{Information |Description=[[Francis Ronalds]]' telegraph experiment |Source=Francis Ronalds, ''Descriptions of an Electrical Telegraph'', London: R. Hunter, 1823 |Date=published 1823 |Author=unknown/illegible artist |other_versions= }} == Licensing == {{PD-old-70}} |
File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 22:09, 11 February 2019 | | 820 × 505 (471 KB) | Betelgeuse1960 | Transferred from en.wikipedia via #commonshelper |
File usage
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Global file usage
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- Usage on en.wikibooks.org
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- Usage on pt.wikipedia.org
