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30 ottob 1673 anni - The Stepped Reckoner

Descrizione:

An early calculator designed by Gottfried Wilhelm von Leibniz. While it was originally meant to perform simple calculations such as square roots and multiplication, it often got jammed and become unable to use.


https://www.britannica.com/technology/Step-Reckoner

Aggiunto al nastro di tempo:

Data:

30 ottob 1673 anni
Adesso
~ 352 years ago

Immagini: