Path: utzoo!utgpu!news-server.csri.toronto.edu!bonnie.concordia.ca!thunder.mcrcim.mcgill.edu!snorkelwacker.mit.edu!spool.mu.edu!samsung!caen!kuhub.cc.ukans.edu!whitten From: whitten@kuhub.cc.ukans.edu Newsgroups: sci.electronics Subject: Re: VASCAR Message-ID: <28701.27c260fd@kuhub.cc.ukans.edu> Date: 20 Feb 91 17:43:57 GMT References: <92784@unix.cis.pitt.edu> <1094.27c0ee40@lrc.uucp> Followup-To: sci.electronics Organization: University of Kansas Academic Computing Services Lines: 25 >>>VASCAR, eh? I haven't heard of this in years. Didn't know it was still being >>>used! Wasn't there a problem with having to make a subjective judgement of >>>when the target car and the police car passed the same point? >> When the specific car passes the first line, a stopwatch is activated. >> When the car passes the second line, that stopwatch is stopped. >> Since the cop has your distance travelled and the time it took you >> to travel that distance - he has your speed. Very accurate, too. The plane version of this setup, as the television version of motorweek pointed out the other day is quite accurate. Using a 1/2 mile stretch of road, a full 1 second error on starting or stopping the clock from the plane results in something like less than 2 mph error. Atleast as accurate as some highway patrol with a miscalibrated radar, and a bad aim. Regards, Chris ============================================================================== WHITTEN@KUHUB.CC.UKANS.EDU Chris Whittenburg, Univ. of Kansas WHITTEN@UKANVAX.bitnet Electrical Engineering ============================================================================== Brought to you by Super Global Mega Corp .com