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Alidade

technology Maturity 11-13

A tool helps us see far things.

alidade.png
alidade.png
It has a bar with small holes. You look through the holes at a far object. This helps you draw maps. It can even find stars!
Traverse plane-table alidades Fig 2 Plate XXXVIII WBClark 1898.jpg
Traverse plane-table alidades Fig 2 Plate XXXVIII WBClark 1898.jpg
Do you want to find a star?

50 words
🖼️ Images & Media (5)
File:Alidade for ceiling projector.JPG
Alidade for ceiling projector.JPG
File:Circumferentor, Table of Surveying, Cyclopaedia, Volume 2.jpg
Circumferentor, Table of Surveying,...
File:alidade.png
alidade.png
File:Traverse plane-table alidades Fig 2 Plate XXXVIII WBClark 1898.jpg
Traverse plane-table alidades Fig 2 Plate...
File:Telescopic alidade, USS Green Bay.jpg
Telescopic alidade, USS Green Bay.jpg
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📚 Content adapted from Wikipedia | Readability: FK 11.1 | Vital Level 5