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#7 – Exit Signs

10 Things You Didn’t Know Were Radioactive!

via complain

The glowing exit signs guide people to safety during various disasters. Due to the radioactive isotope of hydrogen within the sign, it turns out such a glow effect.

However, there is another danger: if this sign breaks, radioactive isotopes, getting into the air, can infect the entire building.

#interesting , #radioactive , #banana , #brazil_nuts , #paper , #cigarettes , #denver

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