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1 gen 1941 anni - Glenn Seaborg

Descrizione:

Glenn Seaborg discovers plutonium.
The U.S. Committee on X‑ray Protection recommends adoption of maximum body burden of 0.1
microCurie for radium.
L.S. Taylor recommends lowering the x‑ray exposure dose to 0.02 Roentgens/day.

Aggiunto al nastro di tempo:

Radiation Timeline

ByJayden
10 giu 2018
0
0
726

Data:

1 gen 1941 anni
Adesso
~ 84 years ago

Immagini:

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