Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Posting-Version: version B 2.10 5/3/83; site utcsrgv.UUCP Path: utzoo!utcsrgv!donald From: donald@utcsrgv.UUCP (Don Chan) Newsgroups: net.physics Subject: Re: CURAD light Message-ID: <1771@utcsrgv.UUCP> Date: Fri, 15-Jul-83 16:33:04 EDT Article-I.D.: utcsrgv.1771 Posted: Fri Jul 15 16:33:04 1983 Date-Received: Fri, 15-Jul-83 19:05:45 EDT References: <357@trw-unix.UUCP> <326@hou5f.UUCP> Organization: CSRG, University of Toronto Lines: 16 A slight correction to an article mentioning the glow observed when pulling tape off a roll and the glow observed when crunching lifesavers in the dark. I am fairly certain that the glow mechanisms are totally unrelated. I believe the tape glow is due to static electric discharges (if you look closely you can see the jagged sparks). On the other hand, crunching lifesavers (or smashing large sugar crystals with a hammer) produces light via what is know as "triboluminescence". To make a long story short, those interested should look in the Amateur Scientist column of Scientific American (I forget the exact date, but sometime in the last 10 months), which has an excellent description of the phenomenom Don Chan