15 févr. 1897 - J. J. Thomson discovers the electron
Description:
J. J. Tomson is a british scientist. He was born in 1856 and died in 1940. He discovered the electron by the cathode ray experiment. He also proposed the plum pudding atom.Ajouté au bande de temps:
Date:
15 févr. 1897
Maintenaint
~ Il y a 127 ans
