檔案:British Museum Marine Chronometer 1.jpg
出自六年制學程
此預覽的大小：400 × 600 像素. 其他解析度：2,592 × 3,888 像素。
完整解析度 （2,592 × 3,888 像素，檔案大小：2.01 MB，MIME類型：image/jpeg）
摘要
| 描述 |
English: The Beagle chronometer. In the British Museum. |
| 日期 | |
| 來源 | 自己的作品 |
| 作者 | Photograph by Mike Peel (www.mikepeel.net). |
| 授權許可 (重用此檔案) |
CC-BY-SA-4.0. Please attribute as per the author line above. |
| British Museum reference | CAI.1957, L210 / Registration:1958,1006.1957 |
| Detailed description | Marine chronometer, Rectangular mahogany box, lined with green beize, with brass carrying handles at the sides. Hinged lid with glazed viewing aperture and sliding mahogany cover. A key-operated lock at the front. There is an inserted plain ivory disc in the lid front. Silvered brass dial with Roman hours I-XII within a minutes circle. Subsidiary seconds dial above VI. Plain blued-steel hour, minute and seconds hands. Movement contained in a lacquered brass bowl. One-day spring-driven movement, with fusee and Harrison's maintaining power. Jewelled bearings for train wheels in screwed settings. Earnshaw spring-detent escapement with Earshaw split-bimetallic temperature compensation balance and free-sprung helical blued-steel balance spring. |
| Size | Height: 17.6 cm (6.9 in) Width: 20.8 cm (8.2 in) Depth: 20.8 cm (8.2 in) |
| Location | Room 39 case 10 |
| This image is licensed under a Creative Commons Attribution-Share Alike licence, which gives you permission to freely use the image for any purpose, so long as you attribute it as requested here, and you must make any modified versions of it available under an identical license.
If you want to use this image under a different license, for example if you can't give attribution or if you can't share a derivative work under the same licence, then I may ask for a small fee to do so, which will help me cover the cost of my photography equipment. If you use this image outside of the Wikimedia projects, then I'd appreciate it if you could let me know. This isn't compulsory, but it would be nice of you. You can contact me on-wiki or by this form This image was taken using a Canon EOS 400D with a Canon EF-S 18–55mm lens. |
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姓名標示: Photograph by Mike Peel (www.mikepeel.net).
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檔案歷史
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| 日期/時間 | 縮圖 | 維度 | 使用者 | 註解 | |
|---|---|---|---|---|---|
| 目前 | 2010年7月17日 (六) 21:59 | | 2,592 × 3,888（2.01 MB） | Mike Peel | {{British-Museum-object|number=CAI.1957, L210 / Registration:1958,1006.1957|id=55372|description=Marine chronometer, Rectangular mahogany box, lined with green beize, with brass carrying handles at the sides. Hinged lid with glazed viewing aperture and sl |
連結
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