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1 gen 1540 anni - Screws being used - Screws became used for clocks, enabling much smaller designs that kept time much better than first models.

Aggiunto al nastro di tempo:

Maths - History of time

ByCharlotte Best

21 nov 2019

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455

Data:

1 gen 1540 anni

Adesso

~ 486 years ago

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