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1 sept. 400 av. J.-C. - cross staff

Description:

The cross-staff is an instrument used to measure angles and altitudes, consisting of a trigonometrically graduated staff and one or more perpendicular vanes moving over it.

Ajouté au bande de temps:

history project

Byomar cardeanas
13 nov. 2017
0
0
462

Date:

1 sept. 400 av. J.-C.
Maintenaint
~ Il y a 2428 ans
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