gollum.space
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Plutonium, Radioactivity
06-February-2024 Tuesday
Today we learned how to make at home...
mazlow
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Today we learned how to make at home...
Video
Tungsten
Critical mass
Plutonium
Informative
Radioactivity
Cotton (fabrics and plant)
21-June-2014 Saturday
I stumbled upon the link by accident and wondered how this could happen?
kirillka87
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Plutonium
Radioactivity
v20240901