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Welcome Licorice Pizza (LP) lovers! Setup guides and Vinyl FAQ.

How about smoke detectors?

They use Americium-241, with a half life of 432 years.

Then there's Thorium-232 in gas lanterns, and significant levels of Radium in antique luminous clock faces.

Back in 1994, a boy scout collected large quantities of all of the above, and tried to build his own breeder reactor. He got worried when the radiation could be detected from a block away. See link.


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  • How about smoke detectors? - Brian H P 14:03:01 02/17/21 (0)

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