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19 lugl 201 anni a. C. - Astrolabe

Descrizione:

An instrument for observing the positions of heavenly bodies (stars) that was used before the sextant was invented.
Invented in 200 BC
Invented by Greek astronomer, Hipparchus

Aggiunto al nastro di tempo:

Social Studies: Chapter 3: Exploration and Technology

ByTaylor Petersen
11 ott 2018
0
0
833

Data:

19 lugl 201 anni a. C.
Adesso
~ 2228 years ago

Immagini:

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