File:Vacuum Tide Gauge hydrographicalsu00whar 0489.jpg
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Vacuum Tide Gauge
Summary
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| Description |
English: Purey-Cust's Vacuum tide gauge. The end of tube E is in the ocean, and a vacuum is maintained in the tube. The tidal height is balanced by the height of mercury in the barometer tube. |
| Date | |
| Source | https://archive.org/details/hydrographicalsu00whar/page/455 |
| Author | H.E. Purey-Cust (1857-1938) |
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 70 years or fewer. 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. |
| 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 | |
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| current | 11:46, 8 December 2021 | | 1,608 × 2,561 (359 KB) | Kognos (talk | contribs) | Uploaded a work by H.E. Purey-Cust (1857-1938) from https://archive.org/details/hydrographicalsu00whar/page/455 with UploadWizard |
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