41
/
AIzaSyB4mHJ5NPEv-XzF7P6NDYXjlkCWaeKw5bc
May 31, 2026
73358
6570
2
Public Timelines
FAQ

jun 11, 1906 - Hans Geiger invented a device that could detect alpha particles.

Added to timeline:

27 Sep 2017
0
0
747

Date:

jun 11, 1906
Now
~ 120 years ago