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30 mar 1956 ano - After many atomic bombs during World War II and the consequences of radiation in people result, "A National Academy of Sciences Committee issues a report asserting no safe threshold for radiation exposure."

Adicionado na linha do tempo:

1st Nine Weeks Honor Project Chemistry

ByAyanna
18 out 2018
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0
443

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30 mar 1956 ano
Agora
~ 69 years ago
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