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17 lugl 1609 anni - Galileo Galilei decides to use the telescope for astronomical purposes.

Descrizione:

Galileo Galilei makes his own refracting telescope and gets the brilliant idea of using it for astronomical purposes. This was also the year he published his very own book and mentions his new creation in it.

Aggiunto al nastro di tempo:

Data:

17 lugl 1609 anni
Adesso
~ 416 years ago

Immagini: