33
/it/
AIzaSyB4mHJ5NPEv-XzF7P6NDYXjlkCWaeKw5bc
November 30, 2025
3623666
330795
2
Public Timelines
FAQ

1 gen 1897 anni - J.J. Thomson

Descrizione:

J.J. 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:

6 gen 2020
0
0
267

Data:

1 gen 1897 anni
Adesso
~ 128 years ago