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17 h 44 min, 1 janv. 1942 ans - Calculadora de Pascal (1642)

Description:

Blaise Pascal inventó una máquina de sumar mecánica para ayudar a su padre a calcular impuestos.

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Luia

ByLuis Dominguez

9 nov. 2017

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Date:

17 h 44 min, 1 janv. 1942 ans

Maintenaint

~ Il y a 83 ans

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