I should point out that my dial reads time by a projection of a point onto a point (the first point being on a surface)
and that it reads standard time. Dan Wenger >Gianni wrote: > >>The Monofilar and Bifilar sundials can be built with any kind of Time: >>Middle Time (Standard), Local Apparent Time, with Italic, Babylonian, >>Temporary hours, etc. > >Ah ha! I must have misunderstood the issue being discussed. > >I can see that in abstract terms that we have dials which are > >- projection of a point onto a surface (perhaps curved) >- projection of a line (perhaps curved) onto a surface (perhaps curved) >- projection of two lines (perhaps curved) onto a surface (perhaps curved) >- other non-projection types, such as the wonderful CD-diffraction dial. > >If the third class is already known by common usage as Bifilar, then I >accept that it makes sense to call the second type Monofilar (even though >for me personally the word filar carries an implication of a wire or thread, >rather than being a general term for a line or edge). I assume the first >class are called Nodal. > >The other half of the discussion is what to call a dial with a seasonal time >adjustment. I though that someone was suggesting that because the existing >examples had already been called monofilar then that name applied to the >adjustment feature. > >So a monofilar dial can be > >Standard, Local , or other hours >Upright, polar axial (axial?), or other principal axis >Horizontal, Vertical or other dial face planes > >So the ordinary garden dial could be called Axial Local Horizontal >Monofilar, Mr.Singleton's dial is Axial Standard Horizontal Monofilar. The >various forms af azimuthal dials are all Upright monofilars. The Wenger dial >is a Local Spherical Nodal dial. > >Am I getting close? > >Steve Daniel Lee Wenger Santa Cruz, CA [EMAIL PROTECTED] http://wengersundial.com http://wengersundial.com/wengerfamily
