File:Ladd clock drive.jpg
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Summary
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English: Mechanical clock drive of the Ladd Observatory telescope showing centrifugal friction governor installed in 1891. A modern sensor is also visible which is being used here to calibrate the rate. |
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| Source | Own work | ||||||||||||||||||||||||||
| Author |
Michael L. Umbricht
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| Camera location |  | View this and other nearby images on: OpenStreetMap |  |
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Michael L. Umbricht / Ladd Observatory, the copyright holder of this work, hereby publishes it under the following licenses:
This file is licensed under the Creative Commons Attribution-Share Alike 4.0 International, 3.0 Unported, 2.5 Generic, 2.0 Generic and 1.0 Generic license.
Attribution: Michael L. Umbricht / Ladd Observatory
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Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled GNU Free Documentation License. |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 03:51, 28 January 2018 | | 2,194 × 3,264 (795 KB) | Mu301 (talk | contribs) | User created page with UploadWizard |
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