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Article #119Re: Question: Curious Laser Beam
From: Ronald P. Larkin
Date: Wed, 14 Aug 1996 00:00
Date: Wed, 14 Aug 1996 00:00
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In article <32121610.3129776@news.carinthia.co.at>, wabi@mail.carinthia.co.at (Helmut Wabnig) wrote: > On Wed, 14 Aug 1996 02:03:58 GMT, UZSD78@IBM.RHRZ.Uni-Bonn.DE > (Thorsten Franz) wrote: > >when I was sitting in my living room tonight, a spot of red light (at > >most one inch in diameter) appeared on the wall and wandered over it, > >coming to rest on the back of the head of my girlfriend. > You can risk a short glimpse. > > yours, > wabi Or if it happens again, tell your GF to stay still and make a mark on the window where the beam passes through it (find the place by seeing where your body interrupts the beam if necessary). After the beam is gone you can sight along the GF-to-spot line and see whence it's coming. Ron -- Ron Larkin (r-larkin@uiuc.edu) Illinois Natural History Survey, Champaign IL 61820
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X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: f8954,99df9b10108a3fd1 X-Google-Attributes: gidf8954,public X-Google-Thread: 114713,99df9b10108a3fd1 X-Google-Attributes: gid114713,public X-Google-Thread: 10b271,99df9b10108a3fd1 X-Google-Attributes: gid10b271,public X-Google-Thread: 11446d,99df9b10108a3fd1 X-Google-Attributes: gid11446d,public From: r-larkin@uiuc.edu (Ronald P. Larkin) Subject: Re: Question: Curious Laser Beam Date: 1996/08/14 Message-ID: <r-larkin-1408961628490001@room-11-660.inhs.uiuc.edu> X-Deja-AN: 174222300 references: <4urchf$m16@news.rhrz.uni-bonn.de> <32121610.3129776@news.carinthia.co.at> organization: Illinois Natural History Survey newsgroups: alt.sci.physics.acoustics,sci.med.physics,sci.physics,fj.sci.physics