1 janv. 1897 - J.J. Thomson In 1897, J.J Thomson, an English Scientists, discovers electrons. He decides that there is a positively charged sphere while the outside has negative electron who circle around. He became a master of Trinity College until his death.
Ajouté au bande de temps:
Date:
1 janv. 1897
Maintenaint
~ Il y a 128 ans