41
/
AIzaSyB4mHJ5NPEv-XzF7P6NDYXjlkCWaeKw5bc
May 31, 2026
5390366
508024
2
Public Timelines
FAQ

jan 1, 1897 - Cathode ray experiment

Description:

- J. J. Thompson
- negatively charged particles
- now know charge-to-mass ratio

Added to timeline:

15 May 2021
0
0
216

Date:

jan 1, 1897
Now
~ 129 years ago