April 1997
Page 56

Vade-Mecum du Gnomoniste

A review of 'Vade-Mecum du Gnomoniste', summarising its contents, purpose, and value as a reference for diallists.
Book Reviews

Peter Lamont

July 1997
Page 9

QBASIC Sundial Programs SUNDL1, 2 & 3

This article describes three QBASIC computer programs for designing sundials. The programs can be used for plotting horizontal garden dials and various types of vertical wall dials.
Dialling Tools, Sundial Design & Layout

Peter Lamont

October 1997
Page 3

Marking Time

This article describes the "XY method", a practical process for marking time divisions on sundials. It details how to calculate shadow angles from first principles for various dial types and then plot them directly along rectangular borders using a graduated straightedge, acting as an "Add-on" to computer design programs. The method was adapted for complex declining/proclining dials and can also be applied to circular or octagonal dials.
Dialling Tools, Mathematics of Dialling, Sundial Design & Layout

Peter Lamont

February 1996
Page 9

Open Book and Conical Dials

An exploration of innovative sundial designs such as the Open Book and Conical types, combining mathematical precision with aesthetic appeal.
DIY Sundial Projects, How Sundials Work, Sundial Design & Layout

Peter Lamont