18-25


Sun montage

0
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Experience on natural radioactivity

0
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Rn accumulation

0
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decay series of U238

0
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Year on Earth

0
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Video about Cern

0
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The Hunt for Higgs

4.5
Average: 4.5 (2 votes)
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Electron double-slit experiment (dr. Tonomura, Hitachi Research)

4
Average: 4 (1 vote)


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