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1 jan 1815 ano - Safety lamp

Descrição:

Sir Humphry Davy's invention of the safety lamp greatly improved safety for miners by reducing the risk of igniting flammable gases in mines.

Adicionado na linha do tempo:

New timeline

ByClaudia RENNIE
8 meses atrás

Data:

1 jan 1815 ano
Agora
~ 209 years ago
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