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jan 6, 1912 - Hans Geiger

Description:

devised a counter for alpha particles, used counter and other radiation detectors, any atom the nucleus occupies a small volume

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3228631/

Added to timeline:

Lauren and Alanna

ByLauren Knowles
24 Aug 2018
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Date:

jan 6, 1912
Now
~ 114 years ago
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