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AIzaSyB4mHJ5NPEv-XzF7P6NDYXjlkCWaeKw5bc
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25 feb 1752 anni - Benjamin Franklin Demonstrated that lightning is electricity Discovered that electrical charges come in 2 varieties – positive and negative. Like charges repel, opposite charges attract.
Aggiunto al nastro di tempo:
History of chemistry
By
Dina Bawazeer
14 nov 2018
0
0
662
Data:
25 feb 1752 anni
Adesso
~ 273 years ago
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