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1 giug 1815 anni - Humphrey Davy made the first miners lamp

Descrizione:

miners could now see what they were mining and used safer fuels for lighting

Aggiunto al nastro di tempo:

inventions

17 ott 2017

0

0

796

Data:

1 giug 1815 anni

Adesso

~ 210 years ago

Immagini:

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