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1 gen 1815 anni - Safety lamp
Descrizione:
Sir Humphry Davy's invention of the safety lamp greatly improved safety for miners by reducing the risk of igniting flammable gases in mines.
Aggiunto al nastro di tempo:
New timeline
By
Claudia RENNIE
9 mesi fa
1
0
70
Data:
1 gen 1815 anni
Adesso
~ 209 years ago
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