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AIzaSyB4mHJ5NPEv-XzF7P6NDYXjlkCWaeKw5bc
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30 marzo 1897 anni - When experimenting with a cathode ray tube, J.J. Thomson discovered the electron.
Aggiunto al nastro di tempo:
1st Nine Weeks Honor Project Chemistry
By
Ayanna
18 ott 2018
0
0
441
Data:
30 marzo 1897 anni
Adesso
~ 128 years ago
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