File:Christiaan Huygens Balance Spring.png
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Christiaan_Huygens_Balance_Spring.png (300 × 188 pixels, file size: 5 KB, MIME type: image/png)
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| Description |
English: Drawing of an early balance wheel and balance spring by Dutch scientist Christiaan Huygens, inventor of the balance spring, published in his letter in the Journal des Sçavants of 25 February 1675. One of the first drawings showing his spiral balance spring, (G,H). Huygens called this particular design the 'pirouette'. Its innovative feature (which Huygens found to be impractical and abandoned) was the large gear (r,s) and pinion (t) between the balance wheel and escapement, an attempt to allow the balance wheel to make a wider swing. |
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| Date | published 1675 | ||||||||||||||||||||||||||
| Source | Downloaded from Plomp, Reinier, 'Longitude Timekeeper by Isaac Thuret with balance spring invented by Christiaan Huygens', The Horological Foundation website, on 2007-11-15. | ||||||||||||||||||||||||||
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| Permission (Reusing this file) |
Public domain, author died in 1695. | ||||||||||||||||||||||||||
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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. | |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 05:00, 16 November 2007 | | 300 × 188 (5 KB) | Chetvorno (talk | contribs) | {{Information |Description=Drawing of his 'pirouette' balance wheel and spring by Christiaan Huygens, published in his letter in the ''Journal des Sçavants'' of 25 February 1675. |Source=Downloaded from Plomp, Reinier, [http://www.antique-horology.org/_ |
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