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- Xref: sparky misc.consumers:15693 sci.environment:10885 sci.med:16456
- Path: sparky!uunet!sun-barr!ames!lll-winken!s1.gov!lip
- From: lip@s1.gov (Loren I. Petrich)
- Newsgroups: pdx.consumer,misc.consumers,sci.environment,sci.med
- Subject: Radioactive Smoke Alarms? (was Re: Avoiding radioactive household products)
- Message-ID: <1992Aug26.212011.23983@s1.gov>
- Date: 26 Aug 92 21:20:11 GMT
- References: <1992Aug25.235542.17607@sopwith.uucp> <1992Aug26.025131.479@athena.cs.uga.edu> <rrempel.714854221@sfu.ca>
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-
- Many smoke alarms have a small bit of radioactive material in
- them to create ionization. When there is smoke, then the conductivity
- of the air goes up. Correct me if I'm wrong, but that's how I think a
- smoke alarm works.
-
- Though radioactive materials arouse an almost phobic reaction
- nowadays (about a century ago, they aroused just about the opposite
- one, I may add), they _are_ guaranteed reliable. As long as it's not
- all gone, radioactive material will continue being radioactive no
- matter what goes on its environment.
-
- /Loren
-