5 ore 44 min, 2 gen 1897 anni - Thomson
Descrizione:
Thomson discovered the electron by experimenting with a crookes,or cathode ray,tube.He demonstrated that cathode rays were negatively charged.in addition,he also studied positively charged particles in neon gas.
Aggiunto al nastro di tempo:
Data:
5 ore 44 min, 2 gen 1897 anni
Adesso
~ 127 years ago