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he put uranium crystal and photgraphic plate ina drawer

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14y ago
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12y ago

there was an ominouse spot on his photographic plate that of which was placed next to the plutonium crystal

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14y ago

If the "items" in question were photographic plates, then he noticed that they had been "fogged," which he determined was due to the presence of radioactive materials nearby.

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Q: What did becquerel observe when he later took the items out of the drawer?
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