Article View: sci.electronics
Article #21860Re: 50 Hz in Europe... Was the decision political?
From: Randall J. Davis
Date: Fri, 22 Dec 1989 18:47
Date: Fri, 22 Dec 1989 18:47
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In article <1242@bio73.unsw.oz> root@bio73.unsw.oz (Karl Redell ) writes: |60Hz is used for timing considerations. 1 cycle = 1 second. Among other |things, this simplifies the construction of clock motors. | |karl@bio73.unsw.oz Huh??? When did they change the definition of hertz? Disregarding that, what *difference* does it make for clock motors? Last I checked, there aren't any direct drive analog clocks out there (this said because most centrally controlled clocks are run off of one pulse/second through a solenoid setup, and hence aren't really analog though they use an "analog" face), so *all* clock motors are going to be geared down to run the hand movements, so what difference does it make if the gear train does a conversion of, eg. 3600:1 instead of 3000:1???? This isn't already time for the April Fool's postings, is it? Randy Davis UUCP: dell.dell.com!rjd
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Path: arc1-ca.pugleaf.net!utzoo!utgpu!jarvis.csri.toronto.edu!clyde.concordia.ca!uunet!cs.utexas.edu!ut-emx!dell!rjd From: rjd@dell.dell.com (Randall J. Davis) Newsgroups: sci.electronics Subject: Re: 50 Hz in Europe... Was the decision political? Summary: New definition of Hertz? Message-ID: <4925@dell.dell.com> Date: 22 Dec 89 18:47:35 GMT References: <2332@ektools.UUCP> <787@larry.sal.wisc.edu> <8973@cbmvax.commodore.com> <939@rsiatl.UUCP> <42@macuni.mqcc.mq.oz> <1242@bio73.unsw.oz> Reply-To: rjd@dell.UUCP (Randall J. Davis, ) Organization: Dell Computer Corp., Austin, Tx. Lines: 19