About my 2004 article on the Copernicus’ reflection sundial I have to recognize that the conclusions made by me in the article are *wrong* *:-(* This is because in my thesis I used a wrong value of the declination of the wall, based on old photographs. Fabio Savian few years ago, after visiting the castle, sent me the correct declination but, due to laziness and lack of time :-), I have not yet tried to correct my article. I agree with Fabio on all that he wrote. A greeting to all Gianni Ferrari
2015-04-07 21:02 GMT+02:00 Claude Hartman <[email protected]>: > Gianni Ferrari's article, " Copernicus And The First Reflection Sundial" > appeared in the June 2004 edition of the Compendium in English. > > > On 4/6/2015 11:38 PM, Reinhold Kriegler wrote: > > > > > May I recommend Gianni Ferrari's splendid article: > > http://www.ta-dip.de/fileadmin/user_upload/bilder3/6c07ca7481c84092971f6984b17cae60_Ferrari_Kopernikus.pdf > > You can find it in the end of my Kopernicus- link > > http://www.ta-dip.de/salon-der-astronomen/bewohner-des-salons-der-astronomen/copernicus-nicolaus.html > > And just to remember an excellent tool > Tridux 2000 by Dietrich Ahlers > to construct a Reflex-dial: > > http://www.ta-dip.de/sonnenuhren/meine-sonnenuhren/r1-reflex-sonnenuhr.html > and > http://www.ta-dip.de/sonnenuhren/meine-sonnenuhren/r2-reflex-sonnenuhr.html > > Reinhold Kriegler > > > > * ** *** **** ***** ****** ******* > Reinhold R. Kriegler > Lat. 51,8390° N. Long. 12,25512° E. GMT +1 (DST +2) www.ta-dip.de > http://www.ta-dip.de/dies-und-das/r-e-i-n-h-o-l-d.html > > http://www.ta-dip.de/salon-der-astronomen/musik-im-salon-der-astronomen.html > > > ---------------------------------------------------https://lists.uni-koeln.de/mailman/listinfo/sundial > > > > --------------------------------------------------- > https://lists.uni-koeln.de/mailman/listinfo/sundial > > >
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