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February 1994
The articles link to the specific page in a PDF optimised for speed. If you want the whole issue, you can download it here, but the files from earlier years can be quite large.
February 1994
Page 2
Page 2
Editorial discussing international sundial publications, restoration challenges, multilingual gnomonic vocabulary, and reports from Roumania and Sarajevo.
Restoration projects, The BSS and Members
February 1994
Page 3
Page 3
In-depth examination of historical ivory diptych sundials, particularly from Nuremberg and Dieppe, their markings, functions, and astrological and calendrical components.
Dials: Portable, Historical Dials
February 1994
Page 8
Page 8
Describes a method using stereographic projection to determine true north and latitude from solar shadow observations. Includes theoretical explanation and practical setup.
How Sundials Work, Mathematics of Dialling
February 1994
Page 9
Page 9
Survey of artistic representations of sundials across centuries, evaluating their accuracy, symbolism, and evolution, with references to works by Holbein and others.
Historical Dials
February 1994
Page 17
Page 17
Explores the history, theory, and military use of sun compasses, including detailed designs used by British forces and analogies with sundial mechanics.
Dials: Portable, Mathematics of Dialling
February 1994
Page 22
Page 22
Provides a geometric technique to design a sundial based on three shadow measurements. Practical, educational, and includes construction guidance.
DIY Sundial Projects, Mathematics of Dialling
February 1994
Page 24
Page 24
Historical document listing time differences across Spanish cities for calendrical correction and dial calibration, translated and annotated.
Equation of Time
February 1994
Page 28
Page 28
Analysis of sundials and astronomical instruments in Holbein’s painting 'The Ambassadors', with insights into symbolism, usage, and historical context.
Historical Dials
February 1994
Page 30
Page 30
Further elaboration on the Equation of Time and the analemma's form, including seasonal impacts on sundial accuracy and diagrammatic explanation.
Equation of Time
February 1994
Page 32
Page 32
Discusses the lunar equivalent of the solar Equation of Time and its practical application for estimating time by moonlight.
Equation of Time
February 1994
Page 33
Page 33
Describes construction of eccentric sundials with non-standard hour lines and geometries. Focuses on design theory and practical outcomes.
Dials: Unusual, Mathematics of Dialling
February 1994
Page 35
Page 35
Addresses deterioration of stone materials used in sundials and buildings. Covers environmental impacts, stone types, and conservation strategies.
Restoration projects
February 1994
Page 37
Page 37
February 1994
Page 38
Page 38
Historic timekeeping tables by Derham related to mechanical watches and their relationship to solar time.
Equation of Time
February 1994
Page 41
Page 41
February 1994
Page 42
Page 42
Biographical summary of Nicholas Kratzer, a notable early 16th-century diallist and scientific advisor to Henry VIII.
Historical Dials, The BSS and Members
February 1994
Page 44
Page 44
Announcement of a commemorative sundial plate issued by the National Trust for Scotland.
Dials: Horizontal
February 1994
Page 45
Page 45
Introduction to a new series of colour postcards issued by the BSS featuring diverse sundials.
The BSS and Members
February 1994
Page 46
Page 46
February 1994
Page 47
Page 47
February 1994
Page 48
Page 48
Society announcements and notes from the BSS Secretary, including administrative updates.