A delightful design! Clever, attractive, and undoubtedly gnomonical correct. Botanically, however, it should be noted that the number of right-hand spirals and the number of lefthand spirals of a sunflower are not equal. Instead, they are (pretty consistently) successive Fibonacci numbers (e.g.: 34 and 55, or 55 and 89, or even 89 and 144).
Steve Woodbury -----Original Message----- From: Bill Gottesman <billgottes...@comcast.net> To: fabio.savian <fabio.sav...@nonvedolora.it> Cc: Sundials List <sundial@uni-koeln.de> Sent: Mon, Jun 5, 2017 8:09 pm Subject: Re: sunflower Another fabulous Fabio sundial! Clever and fun. -Bill On Mon, Jun 5, 2017 at 5:03 AM, fabio.sav...@nonvedolora.it <fabio.sav...@nonvedolora.it> wrote: Hi all I just finished to design an horizontal sundial adjustable for a range of latitude, in this case from 30° N to 50° N, I also built it with laser cut plywood. Revolving the sunflower changes the angle of the polar style, the latitude is engraved (always by laser) at the base of the sunflower, a green arrow on the horizontal dial point out to it. ciao Fabio --- New Outlook Express and Windows Live Mail replacement - get it here: http://www.oeclassic.com/ --------------------------------------------------- https://lists.uni-koeln.de/mailman/listinfo/sundial --------------------------------------------------- https://lists.uni-koeln.de/mailman/listinfo/sundial
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