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may 21, 1734 - "Charles du Fay através de estudos sobre os experimentos de Gray, descobriu a existência de dois tipos de eletricidade, conhecidos hoje como positiva e negativa."
Added to timeline:
Hist 2
By
Lucas Dick
4 Dec 2018
2
0
656
Date:
may 21, 1734
Now
~ 291 years ago
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