Category:Alidades
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English: An alidade (archaic forms include alhidade, alhidad, alidad) is a device that allows the user to sight a distant object and use the line of sight to perform a task. This task can be, for example, to draw a line on a plane table in the direction of the object or to measure the angle to the object from some reference point. Angles measured can be horizontal, vertical or in any chosen plane.
device for measuring angles | |||||
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Subcategories
This category has the following 2 subcategories, out of 2 total.
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Media in category "Alidades"
The following 92 files are in this category, out of 92 total.
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Alhidade.jpg 673 × 529; 102 KB
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Alidade for ceiling projector.JPG 1,632 × 1,232; 723 KB
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Alidade.png 768 × 873; 11 KB
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AlidadePinnule.JPG 640 × 480; 215 KB
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Aspirant.jpg 2,657 × 1,830; 1.45 MB
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Circumferentor, Table of Surveying, Cyclopaedia, Volume 2.jpg 323 × 244; 77 KB
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DesolationPeakBed.jpg 360 × 255; 22 KB
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Sagittaire-Alidade-IMG 9563.JPG 4,416 × 2,944; 1.69 MB
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SAIL MOBILE 2O02 DVIDS1072375.jpg 1,800 × 1,307; 368 KB
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Telescopic alidade Plate XLII WBClark 1898.jpg 806 × 405; 45 KB
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Telescopic alidade, USS Green Bay.jpg 5,168 × 3,445; 2.51 MB
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Telescopic alidade.jpg 2,100 × 1,500; 537 KB
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Traverse plane-table alidades Fig 2 Plate XXXVIII WBClark 1898.jpg 2,002 × 579; 48 KB
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US Navy 100129-N-6692A-041 Sailor checks the bearing of USS Harpers Ferry.jpg 2,100 × 1,500; 1.01 MB
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US Navy 110821-N-IO627-004 A Sailor looks through a telescopic adelaide.jpg 4,288 × 2,848; 770 KB
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US Navy 110823-N-EE987-047 Sailors use a telescopic alidade to find relative bearing.jpg 4,288 × 2,848; 618 KB
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US Navy 111123-N-PB383-172 A Sailor checks the ship's barring.jpg 3,909 × 2,664; 793 KB
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USS Bataan transits the Strait of Messina. (12993849305).jpg 6,016 × 4,016; 1.23 MB
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БСЭ1. Алидада.jpg 538 × 315; 90 KB