3 janv. 1897 - Joseph Thompson discoveres the electron
Description:
With the Cathode Ray Tube experiment, he discovered that in the Atom there was a negative charge. He knew that opposite charges repel, so he put a magnet against the ray. With the positive side of the magnet, the ray got attracted, with the negative side of the magnet, the ray repeled.Ajouté au bande de temps:
Date:
3 janv. 1897
Maintenaint
~ Il y a 128 ans