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30 avr. 1594 - back staff

Description:

The backstaff is a navigational instrument that was used to measure the altitude of a celestial body, in particular the sun or moon.

Ajouté au bande de temps:

history project

Byomar cardeanas

13 nov. 2017

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356

Date:

30 avr. 1594

Maintenaint

~ Il y a 430 ans

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