File:Sextant.jpg
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Protractor with straw fastened to the flat edge to provide viewing window. A string is attached at the center of the protractor and weighted. The user looks at the top of the object to be measured through the straw. The weighted string will then show the angle of elevation on the protractor.
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 13:01, 23 November 2013 | | 600 × 591 (69 KB) | Alex Perry (talk | contribs) | Protractor with straw fastened to the flat edge to provide viewing window. A string is attached at the center of the protractor and weighted. The user looks at the top of the object to be measured through the straw. The weighted string will then show t... |
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