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18 avr. 1897 - Discovery
Description:
By using cathode ray tubes, J.J. Thompson identifies the electron and determines the ratio of mass of an electron to its electronic charge
Ajouté au bande de temps:
4 oct. 2017
0
0
422
Chem
Date:
18 avr. 1897
Maintenaint
~ Il y a 127 ans