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1 gen 3500 anni a. C. - Ábaco

Descrizione:

El ábaco es un instrumento que sirve para efectuar operaciones aritméticas sencillas.

Consiste en un cuadro de madera con barras paralelas por las que corren bolas movibles, útil también para enseñar estos cálculos simples.

Aggiunto al nastro di tempo:

M5

ByCristian CM
24 set 2018
0
0
726

Data:

1 gen 3500 anni a. C.
Adesso
~ 5529 years ago

Immagini:

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