Yvon Masse wrote: > > Hello, > > I would like to find a geometrical demonstration of the Regiomontanus dial. > > Thanks to send me any reference of article that studies this point. > > Best regards. > > Yvon MASSE > 7, rue des Tilleuls > 95300 PONTOISE > FRANCE
In the book 'Die Sonnenuhr' von René R.J. Rohr, the Regiomontanus construction is described. I have the 1982 edition of this book in German. There it is on page 142-143. Also in Mayall & Mayall this sundial is described on page 172 ... There it is called Universal Capuchin Dial, but I think this name is a little confusing. Or look at the Italian book 'Orologi Solari' by Girolamo Fantoni. You find a number of pages about this dial. And in Spanish the book 'Relojes de Sol' by Rafael Soler Gayá. Fer J. de Vries.
