Article View: sci.electronics
Article #2960Re: Proximity detectors, flash pots, smoke pots, radio control
From: Joel Kolstad
Date: Thu, 16 Apr 1992 15:42
Date: Thu, 16 Apr 1992 15:42
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In article <66qaJB1w164w@obmarket> michaelc@obmarket (Michael Campbell) writes: > >On a related note, I've heard that modern fire alarms in buildings, (the >kind you set off, not the automatic kind) have the paint spraying >mechanisms similar to the ones in bank bags. (Explode on you, literally >painting you red. Sometimes blue. Impossible to wash off). True, not >true? Heh... sounds like a good idea for places where frequent false alarms are placed! (schools, dorms, etc.) I don't know if that's true, but I did here a somewhat similar story from my high school chemistry teacher: Their school was having problems with <somebody> pulling false alarms. So, they simply coated the pull levers with <some chemical> (a chemmies can probably say what) that turned the puller's fingers purple for days! Apparently they caught the scum who was doing it... ---Joel Kolstad
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Path: arc1-ca.pugleaf.net!sparky!uunet!spool.mu.edu!umn.edu!doug.cae.wisc.edu!kolstad From: kolstad@cae.wisc.edu (Joel Kolstad) Newsgroups: sci.electronics,rec.pyrotechnics,alt.locksmithing Subject: Re: Proximity detectors, flash pots, smoke pots, radio control Message-ID: <1992Apr16.104229.19704@doug.cae.wisc.edu> Date: 16 Apr 92 15:42:29 GMT Article-I.D.: doug.1992Apr16.104229.19704 References: <1992Apr14.022420.24349@norfolk.vak12ed.edu> <66qaJB1w164w@obmarket> Organization: College of Engineering, Univ. of Wisconsin-Madison Lines: 20