1 janv. 1897 - J.J. Thomson
Description:
A British chemist who lived from 1856 to 1940, Thompson discovered the electron through his experiments with Cathode Rays. He shot an electrical charge through a cathode ray tube, discovering that a negatively charged particle (the electron) was being repelled from the negative side of the tube. He also came up with his Plum Pudding Model, a model showing negative ions in a positive cloud.Ajouté au bande de temps:
Date:
1 janv. 1897
Maintenaint
~ Il y a 128 ans