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1 gen 1640 anni - EL ABACO

Descrizione:

El primer abaco fue inventado por los chinos 500 a.c
se utiliza para hacer cálculos matemáticos como: sumas, restas, multiplicaciones, divisiones, extraer la raíz cuadrada o la raíz cúbica. (1368-1644)

Aggiunto al nastro di tempo:

evolucion de la tecnologia ..

Bypaola
23 ott 2018
0
0
392

Data:

1 gen 1640 anni
Adesso
~ 386 years ago

Immagini:

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