Re: Bad News- Lasers replace Radar guns

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Article #4226

#4226

From: Alan Waterman
Date: Fri, 19 Jan 1990 03:36

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Are you sure the light intensity with vary 1/(distance^4)
That makes sense if the source emmits in a sphere, reflects and comes\
back as a sphere. But the laser shoots in a strait line so almost
all the light from the source reaches the destination. Am I wrong about
the laser beam?

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References: <7263@lindy.Stanford.EDU> <13398@cit-vax.Caltech.Edu> <354@egrunix.UUCP>

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Path: arc1-ca.pugleaf.net!utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!tut.cis.ohio-state.edu!ucbvax!agate!shelby!lindy!ucscb.UCSC.EDU!sorka
From: sorka@ucscb.UCSC.EDU (Alan Waterman)
Newsgroups: sci.electronics
Subject: Re: Bad News- Lasers replace Radar guns
Keywords: radar laser police
Message-ID: <7334@lindy.Stanford.EDU>
Date: 19 Jan 90 03:36:16 GMT
References: <7263@lindy.Stanford.EDU> <13398@cit-vax.Caltech.Edu> <354@egrunix.UUCP>
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Reply-To: sorka@ucscb.UCSC.EDU (Alan Waterman)
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