Ship's compass
Numéro d’image : 11904731
| Ship's compass. Historical artwork of Kelvin's compass housed in the top of a binnacle. A binnacle was an enclosure for a compass that had a number of purposes. It provided a standard navigational compass that was held securely in one place,with a light (centre) that illuminated the compass. The binnacle was also water tight and provided a place to attach other scientific instruments,such as a thermometer (upper left). Most importantly,the binnacle counteracted the deviation from true North caused by the ship's iron construction. It contained unmagnetized iron and small magnets to neutralize the ship's magnetic influence | |
| Licence : | Droits gérés |
| Crédit: | Science Photo Library / Terry, Sheila |
| Taille de l’image : | 2376 px × 3847 px |
| Model Release : | Non requis |
| Property Release : | Non requis |
| Restrictions : | - |
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