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Article #5615Re: Period Calendar Wanted
From: Andrea Marie Habura
Date: Mon, 04 Jan 1993 13:55
Date: Mon, 04 Jan 1993 13:55
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Sunrises throughout the year: I am dead certain that the line on a sundial will *not* fall on a single line at sunrise throughout the year. Why? Because the earliest "sundials" (like Stonehenge, the Serpent Mound here in the US, etc, etc.) were made not to tell time of day, but time of year. Strategically placed holes/slits etc. were positioned so that the light from the sun at sunrise would fall in an alcove/bisect a spiral carved in rock/ be contaoined completely within a curve/or whatever. This would simply be impossible if the sunrise location did not move. Alison MacDermot *Ex Ungue Leonem*
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Newsgroups: rec.org.sca Path: arc1-ca.pugleaf.net!sparky!uunet!gatech!rpi!habura From: habura@vccnw04.its.rpi.edu (Andrea Marie Habura) Subject: Re: Period Calendar Wanted Message-ID: <fy72##r@rpi.edu> Nntp-Posting-Host: vccnw04.its.rpi.edu Organization: Rensselaer Polytechnic Institute, Troy, NY References: <1992Dec31.231346.5042@zia.ao c.nrao.edu> <BRANDON.93Jan2141942@gauss.math.brown.edu> <kleber.726004948@husc.harvard.edu> Date: Mon, 4 Jan 1993 13:55:17 GMT Lines: 14