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jan 1, 1900 - Paul Ulrich Villard
Description:
Paul Ulrich Villard is the first to observe that gamma radiation is more penetrating than x‑rays.
Added to timeline:
Radiation Timeline
By
Jayden
10 Jun 2018
0
0
726
Date:
jan 1, 1900
Now
~ 125 years ago
Images:
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