Geiger Counter – 1908 - Magnet Academy

Counting alpha particles was tedious and time-consuming work, until Hans Geiger came up with a device that did the job automatically.

Rutherford's Nuclear World: The Story of the Discovery of the Nucleus, Sections

From Atoms to Nuclei: An Inward Journey

Kaufmann–Bucherer–Neumann experiments - Wikipedia

This Month in Physics History

How do Geiger counters work? - Explain that Stuff

Welcome to Ottawa Township High School

Gaseous Detectors

Geiger Counter, Radioactivity, Radiation, Nuclear Energy

How do Geiger counters work? - Explain that Stuff

Survey Instruments Museum of Radiation and Radioactivity

Rutherford - an overview

2010 Annual Meeting Program - Academy of Criminal Justice

September 24, 1945 - Death of Hans Geiger, German physicist who developed the counter that bears his name - Rincón educativo

Leyden Jars – 1745 - Magnet Academy

Toy Geiger Counter by Bell Products (1955-1956)