September 2010 page 35
Maurice Kenn
Roger Bowling

Readers’ Letters

This section contains two letters: Maurice J. Kenn congratulates Michael Maltin on his 'Novel Meridian Finder' and discusses the dipleidoscope; Roger Bowling queries if anyone has seen Haidinger’s brushes and the perception of polarised light.
How Sundials Work, Dialling Tools

March 2009 page 13
Maurice Kenn

Reader’s Letter

Maurice Kenn shares observations from Brisbane, Australia, contrasting the reliability of his universal equatorial 'coffee-time' sundial and heliochronometer with his UK radio-controlled clock. He notes the significant variation in local apparent noon relative to Eastern Standard Time in Brisbane.
Dials: Equatorial, Dials: Heliochronometer, How Sundials Work

March 2004 page 32
Maurice Kenn

Book Review

This is a review of the booklet "Time" by Silke Ackerman and Paul Buck. It praises the booklet's clear and concise presentation of time measurement, including sundials, stars, sand-glasses, water-clocks, and watches. The review highlights its appeal to young readers, inclusion of cut-out models for equatorial sundials and nocturnals, and the provided compass for orientation.
Book Reviews, DIY Sundial Projects

June 2002 page 81
Maurice Kenn

John Harrison's Unusual and Unique Magnetic Compass

Examines a rare compass designed by Harrison, with discussion of its function and potential sundial applications.
Dialling Tools, Dials: Portable

September 2001 page 129
Maurice Kenn

Sundial or Garden Ornament

This article discusses an inexpensive armillary sundial widely advertised as "Classic Art For Your Garden" but designed for Latitude 38° N. It explains how to modify such a dial for correct use in the UK (approx. 52° N) by tilting its main body or by physically removing and reattaching elements, enabling it to indicate local solar time.
DIY Sundial Projects, Dials: Equatorial

February 1999 page 9
Maurice Kenn

Astro-Compass or Heliochronometer

This article references the Gibbs Universal Heliochronometer, patented in 1906, and its presence at the 1998 BSS Conference. It suggests converting existing Astro-Compasses into heliochronometers by adding self-adhesive hour-labels, providing an affordable way to indicate local sun time with reasonable accuracy.
Dialling Tools, DIY Sundial Projects, Dials: Heliochronometer

January 1997 page 43
Maurice Kenn

Sundials based on Lateral Thinking

Introduces creative sundial designs employing unconventional concepts. Encourages innovation in form and function while respecting core gnomonic principles.
Dials: Unusual

June 1996 page 22
Maurice Kenn

Simple Sundials Seen on Safari

A personal travelogue documenting sundials discovered in Canada, Australia, and Singapore, including armillary and equatorial dials, with notes on design inspiration and memorial contexts.
Dials: Equatorial

October 1995 page 27
Maurice Kenn

A Large Translucent Universal Equatorial Sundial

A technical and descriptive account of a large equatorial sundial made from translucent materials, designed for broad geographic usability and visual impact, including discussion of its structure and application.
Dials: Equatorial, Dials: Unusual

June 1994 page 37
Maurice Kenn

A Large Translucent Universal Equatorial Sundial

This article presents the design and construction of a large equatorial sundial made with translucent materials. The dial is universal, meaning it can be used at any latitude, and is designed to be both decorative and scientifically accurate. Its practical applications and display potential are discussed.
DIY Sundial Projects, Dials: Equatorial

February 1992 page 23
Maurice Kenn

Sundials used for Navigation

This article highlights the useful adoption of sundials for navigation in the 20th century, particularly in situations where magnetic compasses were unreliable. It cites examples like Admiral Byrd's "Sun Compass" for polar flights and the "Astro-Compass" used in RAF aircraft during WWII. It also mentions Brigadier Ralph A. Bagnold's "Sun-Compass" for desert exploration and Gerald Dunn's "Cruiserfix" for yachtsmen, demonstrating the sundial's value as a navigation tool.
Dials: Portable

October 1991 page 33
Maurice Kenn

Sundials can be simple and legible

Maurice Kern describes his simple, legible sundial made from commonplace materials, featuring a translucent semi-cylindrical dial and a conventional gnomon. Designed for readability from multiple angles, it indicates solar time and can be adjusted for local mean time or summer time using the Equation of Time, highlighting a frustration with complex and indistinct conventional dials.
Dials: Equatorial, Dials: Unusual, Sundial Design & Layout, DIY Sundial Projects