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Retricyesterday at 6:03 AM1 replyview on HN

> I mean, if you’re going to dispute my point without providing any evidence

Pure Americium-241 is extremely radioactive 0.0000045 grams of the stuff puts off useful amounts of radiation for smoke detectors, it’s half life is also 432 years.

As an alpha emitter it’s not that bad to stand next to but internally it doesn’t take much to be lethal.


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TheSpiceIsLifeyesterday at 8:32 AM

Awesome. So how does one go about diverting this from nuclear waste storage to the diet of average citizens, as an act of terrorism?

Also, I don’t know how to gauge “useful amounts of radiation for smoke detectors”.

α-particles can be stopped by a sheet of paper.

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