March 2012 page 7
John Davis

New Dials

This article describes a new 70 cm diameter stainless steel spherical dial by David Harber, unveiled at Balliol College, Oxford. It celebrates the thirtieth anniversary of women's admission to Balliol and includes features like calendar bands, tropic lines, and moon-dial scales.
Dials: Unusual, Construction Projects, Mottoes

March 2012 page 23
Mark Lennox-Boyd

La Meridiana

The author describes "La Meridiana," a house in Italy designed with a sundial as its stair tower. This indoor sundial uses projections and reflections onto north, west, and east walls, and the ceiling, to show time and date. The article highlights the mathematics, design, and extensive calibration process.
Construction Projects, How Sundials Work, Mathematics of Dialling, Sundial Design & Layout

June 2012 page 21

Lego Equatorial Dial

Don Rogerson of Red Oak, Iowa (USA) designs sundials using standard Lego bricks. This entry briefly describes an example: a 'Large Equatorial' dial constructed from 1x4 bricks and a 1x2 hinge plate, with grey and white blocks designating hours. Rogerson hopes to interest Lego in producing special sundial sets.
Construction Projects, DIY Sundial Projects, Dials: Equatorial

June 2012 page 34
Christopher Daniel

The Forsyth Sundial – Faversham

This article describes a custom-designed 'garden' sundial commissioned as a 40th birthday gift for Campbell Forsyth of Faversham. It is an inclining horizontal dial for latitude 40°N, tilted 11.5° southwards, with a unique gilded 'box' feature that indicates the exact date and time (8 December, 12 noon) on his birthday. The dial is a work of scientific art by Ben Jones, with a pedestal by Clive Sherwood.
Construction Projects, Dials: Horizontal, Dials: Unusual, Sundial Design & Layout

June 2012 page 43

Another Lego Sundial

This short entry presents another equatorial sundial designed by Don Rogerson using Lego bricks. It is built around a 1x4x5 arch brick, with central blue bricks marking noon and outer bricks indicating 6am and 6pm solar time, resembling the BSS logo.
Construction Projects, DIY Sundial Projects, Dials: Equatorial

June 2012 page 52
Michael J. Harley

New Dials

This article describes a stainless steel sundial at the Nano Nagle Centre in Ballygriffin, Ireland, which is the final 'station' of a 'cosmic walk'. Designed by Jonathan Mason, it features a 3.2-meter high gnomon with a central slit, a 200mm noon gap, and a prism for season indication. It also includes the world represented by a ringed globe and forty clasped hands symbolising intergenerational links.
Construction Projects, Dials: Equatorial, Dials: Unusual, Sundial Design & Layout

September 2012 page 7
Doug Bateman

Check-in at Noon—A noon dial with analemma at an airport check-in desk

This article describes a unique noon dial with an analemma at Rovaniemi Airport, Finland, designed by Professor Emeritus Lauri Anttila in 2000. An angled mirror in the roof casts sunlight onto the floor to indicate months, with the design assuming passengers are aware of time zone differences.
Construction Projects, Dials: Analemmatic, Dials: Noon Lines, Sundial Design & Layout

September 2012 page 26
David Brown
Harriet James

New Dials

This section introduces several recent sundial projects, including an Olympic sundial by David Brown (an analemmatic dial), a vertical school science centre dial featuring periodic table elements, and the Angel with Sundial at Talaton church by Harriet James, inspired by Chartres Cathedral.
Dials: Vertical, Dials: Analemmatic, Sundial Design & Layout, Construction Projects

September 2012 page 41
Sara Shafiei
Ben Cowd

Mosque of the Sun II: Crown of Doha

This article presents an architectural study for a solar dome, "Mosque of the Sun II: Crown of Doha" designed to align with the sun for prayer times and celestial events. It uses digital modeling and 3D printing, with the dome's solar orientation differing from the Mecca-aligned prayer room, allowing light to create a clock/calendar on the floor.
Dials: Unusual, How Sundials Work, Sundial Design & Layout, Construction Projects

September 2012 page 46
Roger Bunce

An Equatorial Sundial with EoT Adjustment: Update

This article provides an update on an equatorial sundial design with Equation of Time adjustment, originally published in 2009. The Mk.2 version incorporates improvements for public use, focusing on weather protection, increased strength, and enhanced vandal resistance, developed in response to the Austrian Sundial Society's plans to install a version.
Dials: Equatorial, Construction Projects, Equation of Time

December 2012 page 15

New Dials

This section showcases several contemporary sundials, including a Corian® vertical dial in Pocklington by Stephen Holehan, based on an 1854 design. It also highlights analemmatic dials by Douglas Hunt's Modern Sunclocks for public sites and playgrounds, and a tile-based dial from High Peak Community Arts in Ston, Croatia.
Construction Projects, Dials: Analemmatic, Dials: Vertical, Sundial Design & Layout

December 2012 page 16
Tony Wood

Summertime Noon Dial

This article describes a fused glass noon dial by Adele Christensen for a Gloucestershire client, indicating 12:00 BST on Midsummer's Day via a narrow slit of sunlight. The author also notes a similar Millennium design, the Lockinge Ring by David Harber in Oxfordshire, which uses a mirror for true noon.
Construction Projects, Dials: Noon Lines, Dials: Reflected, Sundial Design & Layout

December 2012 page 30
Richard Cecil
Judy Cecil

Building A Sundial At Chestnut Cottage

This article details the construction of a large garden sundial at Chestnut Cottage, Essex, by Richard and Judy Cecil. It covers civil engineering aspects, from site surveys and drainage to concrete work, and the precise setting out of hour lines and the stainless steel gnomon, incorporating a polar version of the equation of time.
Sundial Design & Layout, Construction Projects, Equation of Time, DIY Sundial Projects

December 2012 page 42
Tony Moss

Secure Fixings And Fastenings For Sundials

This article addresses methods for securely fixing sundials, focusing on preventing theft and damage. It discusses replacing rusted iron gnomons with stainless steel, using shaped stone blocks with acrylic paste, and cross-bolting for heavy gnomons. For dial plates, methods include recessing them into plinths and using threaded holes with retaining bolts.
Construction Projects, Restoration projects, Sundial Design & Layout

December 2012 page 46
Aleksandr Boldyrev

Utile Et Dulce

The author recounts creating a limestone sundial for a customer near Moscow, inspired by John Tenniel's illustration for Lewis Carroll's Jabberwocky. The dial, one English foot in diameter, measures local time and GMT + 4, and includes a scale for true solar time on the meridian of Lewis Carroll’s birthplace.
Construction Projects, Dials: Horizontal, Mottoes

March 2011 page 11
Tony Moss

Accurate Division Without the Use of a Dividing Engine

The author explores methods for accurately dividing sundial scales without modern dividing engines. He proposes a compact, semi-mechanical system using pivot pins and a straightedge, designed to fit on a bench, and notes its superiority over Ramsden's engine in terms of user comfort.
Construction Projects, Dialling Tools, Sundial Design & Layout

March 2011 page 22
Frans W. Maes

A Reconstruction of Ludwig Hohenfeld’s 1596 Polyhedral Sundial

This article describes the reconstruction of Ludwig Hohenfeld’s 1596 polyhedral sundial, a 26-sided rhombic cubo-octahedron, using distorted photographs and image editing software. It details the process of rectifying the faces and analyzing the sundials inscribed on them to estimate the design latitude.
Dials: Multi Faced, Sundial Design & Layout, Construction Projects, DIY Sundial Projects, Historical Dials

March 2011 page 32
V. N. Manimanis
D. Blatsis
E. Th. Theodossiou

Four Horizontal Sundials in Schools of Volos, Alonnisos and Stefanoviki

This article details the construction and placement of four horizontal sundials in Greek schoolyards between 1995 and 2008. It highlights student involvement, the evolution of precision in Equation of Time corrections, and the use of modern technology in their design and carving.
Dials: Horizontal, Construction Projects, Equation of Time, DIY Sundial Projects

March 2011 page 34
Mike Cowham

A Sun Simulator for Moyse’s Hall Museum, Bury St Edmunds

This article describes the creation of a motorised sun simulator for a museum exhibition, designed to demonstrate how sundials work by speeding up daylight duration. It features three lights for different seasons and allows visitors to test card sundial kits.
Construction Projects, Dialling Tools, How Sundials Work

June 2011 page 14
Christopher Daniel

Before the BSS—A Sundial Chronicle

This chronicle by a founding member of the BSS details his career at the National Maritime Museum, his early involvement with sundials, and his experiences designing notable dials like the 'Dolphin' sundial for the Queen's Silver Jubilee, leading up to the formation of the BSS.
Sundial Design & Layout, Construction Projects, Historical Dials, The BSS and Members

June 2011 page 44
John Carmichael

A Stained Glass Sundial with a Magnetic Gnomon

This article details the design and construction of a stained glass sundial featuring a novel magnetic gnomon, shaped like a frog, which attaches without drilling, soldering, or gluing. It explains the experimental process of developing this damage-resistant magnetic attachment.
Dials: Vertical, Sundial Design & Layout, Construction Projects

September 2011 page 35
Aleksandr M Boldyrev

New Dials

Aleksandr Boldyrev describes the creation of an equatorial sundial for the Rosarium of Sokolniky Park in Moscow. Utilizing an antique piece of Italian marble, the dial features three brass gnomons: one for daylight saving time, one for true solar time, and one for solar azimuth. The dial is designed to operate from spring to autumn equinoxes.
Construction Projects, Dials: Equatorial, Sundial Design & Layout

September 2011 page 38
Frank King

The Margaret Stanier Memorial Sundial: An Unequal-Hours Dial for Newnham College. Pt. 1. Some design considerations

This article details the initial design considerations for a memorial sundial for Margaret Stanier at Newnham College, Cambridge. Frank King proposes an unequal-hours dial with a straight-rod gnomon, loosely based on a historic mass dial. He explores the challenges of accurately indicating unequal hours with a gnomon, discussing celestial sphere projections and a 'critical angle of dip' to improve precision.
Construction Projects, Dials: Mass Dials, Mathematics of Dialling, Sundial Design & Layout

December 2011 page 2
Mario Arnaldi

The Canterbury Pendant. Part 1: A New Insight from an Ancient Rule for Making Portable Altitude Dials

This article summarises the author's attempt to create a clear and correct edition of an ancient text, previously attributed to Bede, on constructing an altitude dial. The findings provide new insight into the famous ‘Canterbury pendant’ and suggest it was made more correctly than previously believed. The text describes a pendant altitude dial, possibly hexagonal, working like a cylinder dial, with specific dimensions and a calendar system.
Construction Projects, Dials: Portable, Historical Dials, Mathematics of Dialling

December 2011 page 8
Jackie Jones

Time For Another Beer?

This article details the design and creation of a transparent chalice dial on a 1-pint beer glass, to be read from the outside like a shepherd's dial. The challenge was to make it simple to use, casting a beam of sunlight through a dark circle to indicate time on equal-width month columns. Calculations for sun's altitude were performed for different months and hours, leading to a functional beer-glass sundial.
Dials: Unusual, Sundial Design & Layout, Construction Projects

December 2011 page 23
Michael J. Harley

New Dials

This article describes a newly erected 180 cm high granite sundial in the Irish National Heritage Park, Ferrycarrig, weighing over 2 tonnes. Modelled on ancient monastic sundials, its temporal lines were designed to mark canonical prayer times rather than passing hours. Only twelve such ancient monastic sundials survive, making this reconstruction an important addition.
Construction Projects, Dials: Mass Dials, Dials: Unusual, Historical Dials

December 2011 page 32
Annika E. Larsson

The Margaret Stanier Memorial Sundial: An Unequal-Hours Dial for Newnham College. Part 2: Evolution of the Design

This is Part 2 of an article describing the design evolution of the Margaret Stanier Memorial Sundial, an unequal-hours dial for Newnham College, Cambridge. It details the aesthetic and gnomonic challenges, including discussions with planners, the development of hour-line alignments, and the artistic elements like sun rays and lettering. The article also covers the intricate cutting and gilding process.
Construction Projects, Dials: Vertical, Mathematics of Dialling, Sundial Design & Layout

December 2011 page 49
John Davis

The Art of Painting Sundials

This article, drawing on John Smith's 1676 book 'The Art of Painting', discusses the techniques and colours used for painting sundials, particularly stone dials. It provides practical advice on preparing surfaces, mixing pigments, and laying out dials, including recommendations for repainting and a note on a misconception about earth's motion affecting dial orientation.
Construction Projects, Historical Dials, Restoration projects, Sundial Design & Layout

March 2010 page 10
Valery Dmitriev
Harriet James
John Davis

New Dials

A collection of short articles describing new sundials. These include an equatorial 'solar acorn' dial in Solar, Russia; a vertical declining dial in Oxford inspired by Christopher Wren; and a mass-produced, flat-packed equatorial 'Sun Disc' from Australia designed for various latitudes.
Dials: Vertical, Dials: Equatorial, Dials: Unusual, Construction Projects

June 2010 page 2
Allan A. Mills

The Sundial as an Aeolian Harp

This article explores the concept of integrating an aeolian harp into a sundial's support structure to complement the visual time-telling with ethereal wind-generated music. It details the history and theory of aeolian harps, including the physics of 'aeolian tones' and string resonance. The author describes the construction of a prototype venturi-type aeolian sundial using inexpensive materials, highlighting design considerations for soundboxes, strings, and the integration of a horizontal dial.
Construction Projects, DIY Sundial Projects, Dials: Unusual, Sundial Design & Layout

June 2010 page 7
Ortwin Feustel

A Vertical South Sundial Indicating the Equation of Time and its Terms

This paper describes a vertical sundial designed to indicate the Equation of Time (EoT) as a figure-of-eight curve, along with its anomalistic and tropical terms. It provides the mathematical formulae for calculating these values and their graphical representations as functions of time and the sun's declination.
Dials: Vertical, Mathematics of Dialling, Construction Projects, Equation of Time

June 2010 page 36
Heiner Thiessen

A Chime Dial

This article introduces the Chime Dial, an equatorial sundial inspired by historic noon cannons, designed to read solar time and provide an acoustic reminder of the sun's journey. It consists of two brass hemispheres and a dial face with five-minute intervals. A Light Dependent Resistor (LDR) inside the sphere triggers a chime when a sunray passes through a narrow gap, marking a pre-set time.
Construction Projects, DIY Sundial Projects, Dials: Equatorial, Sundial Design & Layout

June 2010 page 37
Tony Moss

Building the Chime Dial

This article details the practical construction challenges and solutions for the Chime Dial. The author describes the difficulties in achieving a sharp sunray cutoff for the Light Dependent Resistor (LDR) due to internal reflections and the need for blackened brass shims.
Sundial Design & Layout, Construction Projects

June 2010 page 41
Tony Wood

The Woodchester ‘Unicorn’ Dial

This article describes the formal launch of the 'Unicorn dial' at North Woodchester, Gloucestershire. It features a massive 17ft helical gnomon made of chromium-plated stainless steel, weighing a ton, and held at a 51¾-degree angle. The gnomon was aligned by Michael Maltin, outlining the garden layout which incorporates Chinese themes and floral hour lines.
Construction Projects, Dials: Horizontal, Dials: Unusual, Sundial Design & Layout

June 2010 page 51
John Davis

New Dials: Newton Abbot, Devon

This short note describes a new sundial under construction at Trago Mills retail outlet in Newton Abbot, Devon. The dial, facing close to south, features a gnomon with a slot for a narrow line of light at solar noon and a cylindrical cross-bar nodus to show solstice and equinox declination lines. The hour points and lines are currently painted, with hopes for more durable stainless steel fittings.
Construction Projects, Dials: Vertical, Sundial Design & Layout

September 2010 page 2
Frank King

A New Babylonian and Italian Hours Sundial for Selwyn College, Cambridge. Pt. 1: Design & Construction

This article details the design and construction of a new elliptical slate sundial for Selwyn College, Cambridge, indicating both Babylonian and Italian hours. It discusses the selection of the site, the unique nodus design, precise surveying for wall parameters, and the process of setting out and cutting the dial with inscriptions.
Construction Projects, Dials: Vertical, Mathematics of Dialling, Sundial Design & Layout

September 2010 page 8
David Brown
John Davis

New Dials

This section describes two new sundials: a 50 cm diameter slate horizontal dial by David Brown for a client in Derbyshire, resembling the Hampton Court sundial and featuring a nodus and coat of arms; and a Carrera marble house sign sundial by Harriet James for the BSS Editorial Office.
Construction Projects, Dials: Horizontal, Sundial Design & Layout

September 2010 page 23
John Davis

Blagrave’s Armillary Sphere Unveiled

This article reports on the unveiling of a bronze armillary sphere by David Harber, created to celebrate his lineage to the distinguished 16th-century mathematician and diallist John Blagrave. The sphere represents Blagrave's 'Mathematical Jewel' and was unveiled at the Science Museum in South Kensington.
Construction Projects, Historical Dials, Dials: Armillary Sphere

September 2010 page 26

Gnomon Supporters

This note describes a horizontal sundial in the Netherlands with a pole-style gnomon shaped as a farm labourer holding a hoe, designed and constructed in Cor-Ten steel as a community project.
Construction Projects, Dials: Horizontal, Dials: Unusual, Sundial Design & Layout

September 2010 page 46
Irene Brightmer

Henry Sephton (1686-1756) – Architect, Mason and Diallist

This article examines Henry Sephton, an 18th-century Liverpool architect and mason, as a significant provincial diallist. It describes several dials attributed to him, including signed double horizontal dials at Croxteth Hall and Knowsley Hall, a horizontal dial at Ince Blundell Hall, vertical dials on churches, and two globe dials, highlighting his characteristic transversals and artistic style.
Dials: Horizontal, Construction Projects, Historical Dials, Dials: Double Horizontal

December 2010 page 20
Alan Smith

A Very Large Polar Dial in Lalín, Galicia, N.W. Spain, Designed by José Luis Basanta Campos of Pontevedra

This article describes a very large polar sundial designed by José Luis Basanta Campos for a multi-purpose building in Lalín, Spain. The dial is 20m x 10m on a south-facing roof inclined at the site's latitude, with a 3m gnomon. It shows hour lines from 7:00 am to 5:00 pm and lines of declination for the 20th of each month, applied using weather-resistant adhesive plastic.
Construction Projects, Dials: Polar, Sundial Design & Layout

December 2010 page 22
A. Galanakis
E. Th. Theodossiou
V. N. Manimanis

The Construction of an Equatorial Sundial with a Reference to Anaximander’s Skiatheron

This article describes the design and construction of an equatorial sundial inspired by Anaximander's 'skiatheron,' aiming to be an operational work of art. Made from matted stainless steel, the dial uses dots instead of Arabic or Roman numerals for a timeless aesthetic. It also details the construction process, including computer design, prototyping, and addressing issues like rust and plate bending.
Construction Projects, Dials: Equatorial, Historical Dials, Sundial Design & Layout

December 2010 page 41
Valery Dmitriev

New Dials (1)

This article presents two new sundial designs. The first is a white marble sundial for a Japanese garden near Chelyabinsk, Russia, featuring a gnomon adapted from the Japanese character for 'tiger' and Japanese characters for hour markings. The second is a Dracula Dial with a gnomon of stainless steel and black lacquer, set near Korporie fortress, which was unfortunately stolen.
Construction Projects, Dials: Unusual, Sundial Design & Layout

December 2010 page 44
Brian Albinson

New Dials (2)

This article describes a walk-on analemmatic sundial designed for Highlands School in North Vancouver, Canada, using 'Alemma' software. It features a double analemma design to provide direct mean time with minimal error, accommodating the equation of time correction. Parent volunteers built the dial, using plywood jigs and bronze survey markers for permanent reference.
Construction Projects, Dials: Analemmatic, Equation of Time, Sundial Design & Layout

March 2009 page 2
Allan A. Mills

A North-facing Polarization Sundial of Varying Hue

This article explores alternative methods for measuring the sun's position, specifically focusing on a north-facing polarization sundial. It delves into the principles of polarized light from the sky, its application in sundial design using materials like 'Sellotape', and the construction of an experimental translucent equatorial dial that produces varying interference colours throughout the day.
Construction Projects, DIY Sundial Projects, Dials: Polar, How Sundials Work

March 2009 page 8
Eddie French
Bradley Dillon
Valery Dmitriev

New Dials

This section features descriptions of three new sundial projects. Eddie French details the creation of a vertical declining dial in Grouville Church, Jersey, Channel Islands. Bradley Dillon describes the construction of a large horizontal cemetery park sundial in St Austell. There is also an account of Valery Dmitriev's "Angel playing a harp" sundial in St Petersburg.
Dials: Horizontal, Dials: Vertical, Construction Projects

March 2009 page 10
Michael Lee

A Moondial for the Northern Hemisphere

This article details the design and construction of a mechanical moondial for the Northern Hemisphere. It explains the components, materials used and the intricate etching process for the dial plate. The article also provides instructions for setting up the instrument, determining the moon's phase using Golden Numbers, and calculating time by the moon's apparent direction.
Sundial Design & Layout, Construction Projects, DIY Sundial Projects

March 2009 page 14
Allan A. Mills

An Electronic Polarization Sundial and Photometer

This article describes an electronic polarization sundial and sky photometer designed to measure the intensity and polarization of skylight. It uses a rotatable polar and a selenium photovoltaic cell to detect the solar meridian to within ±8 minutes of time and quantitatively assess the percentage of linear polarization in light from a selected area of the sky.
Dials: Polar, How Sundials Work, Construction Projects

March 2009 page 18
Ken Head

Construction of my Lawn Analemmatic Sundial

This article provides practical details for designing and constructing a durable lawn analemmatic sundial using readily available materials. It covers establishing the north-south line, calculating dimensions, making hour markers from tree-trunk lengths, crafting a date scale from timber, and ensuring precise installation for accurate solar timekeeping.
Dials: Analemmatic, Sundial Design & Layout, Construction Projects, DIY Sundial Projects

March 2009 page 28
Aleksandr M Boldyrev

A Russian Analemmatic Dial

This article details the design and robust construction of an analemmatic sundial installed in the paving of an embankment in Shelkovo, Russia. It covers the use of AutoCAD for design, creating plaster-of-Paris and beeswax models, the ceramic mould casting process for bronze elements, and building substantial concrete foundations to ensure durability against vandalism and weathering.
Dials: Analemmatic, Sundial Design & Layout, Construction Projects

June 2009 page 24
Roger Bunce

An equatorial sundial with EoT adjustment

Details the design and construction of an equatorial sundial that directly indicates clock time (UTC). It incorporates a mechanical cam to automatically apply the Equation of Time correction, and includes adjustments for latitude and longitude. An appendix explains how to design the cam.
Construction Projects, Dials: Equatorial, Equation of Time, Sundial Design & Layout

September 2009 page 20
John Davis

New dial

Describes a new declining vertical dial recently installed in the Midlands. The design is based on the dials at Gonville & Caius College, Cambridge. The article details its large size, construction materials including vitreous-enamelled steel and brass, and a unique feature: the coat of arms of Aston Villa Football Club.
Construction Projects, Dials: Vertical, Sundial Design & Layout

September 2009 page 44
Rob Alton

A roller in a cottage garden?

A humorous account of installing an armillary sphere sundial in a cottage garden. The author describes the challenges of using an old granite farm roller as a pedestal, detailing the difficulties of moving it, cutting the axle, and drilling into the stone to mount the dial and a motto plate.
Construction Projects, Dials: Armillary Sphere

December 2009 page 28
Michael Lee

A universal heliochronometer

Details the design and construction of a modern, portable heliochronometer. The instrument, inspired by H.C. Armstead's 'Phoeboscope', uses a spot of light on an analemma to provide a numerical time readout. It can be adjusted for latitude, longitude, the equation of time, and summer time.
Construction Projects, Dials: Heliochronometer, Equation of Time

March 2008 page 18
Graham Aldred

The Jamestown Commemorative Sundial

Describes the design, creation, and dedication of a large horizontal sundial by Tony Moss, commemorating the 400th anniversary of the Jamestown settlement. The unique 'navette' shaped dial incorporates Anglo-American symbolism, funded by the Sawyer Dialling Prize and sponsors, and was installed at Turner Farm Park.
Dials: Horizontal, Sundial Design & Layout, Construction Projects, The BSS and Members

March 2008 page 46
W. S. May

An Equatorial Mean Time Sundial

Describes the design and construction of an 18-inch brass equatorial mean time sundial, incorporating a mechanism to compensate for the Equation of Time. The article details the machining of a groove on a rotatable drum for EoT correction and the careful assembly and alignment of the time-ring and gnomon, calibrated to read GMT directly.
Construction Projects, DIY Sundial Projects, Dials: Equatorial, Equation of Time

June 2008 page 54
Robin M Catchpole

The Solar Pyramid

This article describes the design and astronomical calculations for the Solar Pyramid, a proposed large-scale art installation that will also function as the world's largest sundial. It details the design constraints, methods for reading time, and the accuracy of incorporating the Equation of Time over centuries.
Construction Projects, Equation of Time, Mathematics of Dialling, Sundial Design & Layout

June 2008 page 68
Elena F Vasilevskay
Aleksandr M Boldyrev

Making Porcelain Sundials

This article describes the sophisticated porcelain artistic technique used to create sundials, from preparing the slurry and casting the pottery to delineating the dial, modelling decorative elements like a 'grapevine river of life', painting with glazes, and multiple firings and enamelling processes.
Sundial Design & Layout, Construction Projects

June 2008 page 99
Irene Brightmer

A Millennium Dial in Cheshire and an 18th Century Treatise on Dialling

This article links a new millennium sundial at Marbury-cum-Quoisley church in Cheshire, designed by Dr W.E. Flewett and adjusted for longitude and British Summer Time, to an 18th-century treatise by Robert Moody. It also discusses William Emerson, a mathematician and diallist whose work influenced Moody and the millennium dial.
Construction Projects, Historical Dials, Mathematics of Dialling, Sundial Design & Layout

September 2008 page 108
Andrew James

Sundial at the Mountbatten School, Romsey

This article describes the creation of a slate vertical sundial as a memorial at The Mountbatten School. Designed for Greenwich time and features a superellipse for hour line termination. The piece details the carving, gilding, and stainless steel gnomon construction, culminating in its successful unveiling in 2007.
Dials: Vertical, Sundial Design & Layout, Construction Projects

September 2008 page 129
Jackie Jones
Rob Stephenson

New Dials

Jackie Jones and Rob Stephenson describe painting a new vertical sundial on their Brighton house in April 2008. The dial shows hours, half-hours, solstices, equinoxes, and their wedding anniversary. The article details the process from transferring the design to the wall, the painting and installation, along with amusing public reactions to the new dial.
Dials: Vertical, Sundial Design & Layout, Construction Projects, DIY Sundial Projects

September 2008 page 143
Douglas Hunt

New Dials (cont.)

Douglas Hunt reports on a new analemmatic mosaic sundial inaugurated in April 2008 in Cecil Plains, Queensland, Australia. Designed by local artist Alain Colfs with layout plans from Modern Sunclocks, the dial features anti-clockwise hour markers and a date-scale, located near the tropics in the Southern Hemisphere.
Construction Projects, Dials: Analemmatic, Sundial Design & Layout

December 2008 page 166
Malcolm Barnfield

Timbouctou Sine Quadrant

This article details the reproduction of a sine quadrant from a preserved Timbouctou manuscript for a documentary film. It describes the instrument's function in solving trigonometric problems without manual calculation, like determining unequal hours, and its historical context as a teaching tool in Islamic astronomy. The author discusses the challenges of interpretation and the modern construction using laser-cut perspex.
Construction Projects, Dialling Tools, Historical Dials, Mathematics of Dialling

December 2008 page 184
Ortwin Feustel

The Logarithmic Spiral as the Basis of a Polar South Sundial

This article proposes the logarithmic spiral as the sole mathematical function needed for designing a polar south sundial, where one spiral segment forms the gnomon profile and another acts as the dial face. It details the spiral's characteristics, equations for tangents and arc lengths, and presents a calculation example for a model, illustrating its construction and operation.
Construction Projects, Dials: Polar, Mathematics of Dialling, Sundial Design & Layout

June 2007 page 64
Tony Moss

Making Brass Disks the Easy Way

This article describes an improved, easier method for making brass and bronze disks for sundials, specifically using double-sided adhesive tape and a lathe chuck. It offers a simpler alternative to previous laborious methods, suitable for various disk sizes up to the lathe's maximum capacity.
Construction Projects, DIY Sundial Projects

June 2007 page 75
Carol Arnold

Nailsea Replacement Sundial

This article describes the process of creating a replica stained-glass sundial for Nailsea Court after the original was stolen. The author explains how window declination was measured and new hour lines calculated, detailing the multi-stage artistic and technical process to recreate the dial, with gnomon fixed to leadwork to prevent glass damage.
Sundial Design & Layout, Construction Projects, Restoration projects

September 2007 page 118
Mike Cowham

How Big—How High?

This article presents practical, simple methods for measuring the height and size of sundials, especially those high on church towers. It describes using a homemade shadow square for height, relating dial dimensions to known object sizes from photographs, and employing a marked tripod. Computer software techniques for perspective correction are also discussed to improve accuracy.
Construction Projects, Dialling Tools

September 2007 page 137
Tony Belk

Declination Lines Detailed

This article offers detailed methods for drawing declination lines on planar sundials using polar and Cartesian coordinates, or a graphical protractor, all based on the dial's style height and nodus distance. It also provides formulas for calculating hour line angles for various dial types and a simple method to check existing dials for accuracy.
Construction Projects, Dialling Tools, Mathematics of Dialling, Sundial Design & Layout

December 2007 page 176
Jackie Jones

Making Portable Dials in Silver

Jackie Jones describes her process of making portable sundials in silver, applying jewellery techniques learned at Art College. Her aim is to create modern, artistic, yet functional pocket dials. She details methods for showing hour lines, blackening recesses, and designing folding gnomons. The article also covers working with sterling silver, hallmarking, achieving different surface textures, and future plans for transparent enamel panels.
Construction Projects, DIY Sundial Projects, Dials: Portable, Sundial Design & Layout

December 2007 page 184
Rafael Soler Gayá

A Multiple Dial as a Monument to the Fishermen of Cala Figuera, Santanyi (Majorca)

This article describes a monument in Cala Figuera, Majorca, featuring three vertical declining bifilar sundials on the pedestal of a fisherman statue. Two dials face south, one east and one west, and the third faces north, declining east. The article details their bifilar gnomon design (semi-ellipse and straight line), delineation for hours and half-hours, and declination lines, along with the mathematical methods used for their design and calculation.
Construction Projects, Dials: Bifilar, Dials: Multi Faced, Mathematics of Dialling, Sundial Design & Layout

February 2006 page 14
Norman Darwood

A Moon Dial

This article provides instructions for assembling and using a moon dial. It explains how to determine the moon's phase using the Golden Number and how to rotate the dial to find the current time. The author notes that this dial relies on estimating the moon’s direction rather than casting a visible shadow, due to the moon's light intensity.
Dials: Equatorial, Dials: Unusual, Construction Projects, DIY Sundial Projects, Dials: Nocturnals

February 2006 page 18
Peter Ransom

Origami Sundials

This article details the author's successful endeavour to create origami sundials without cutting or tearing, describing three unique designs. It provides step-by-step instructions for an equatorial dial, explaining the geometric principles behind folding hour lines and constructing a perpendicular gnomon.
Dials: Equatorial, Mathematics of Dialling, Construction Projects, DIY Sundial Projects

February 2006 page 35
Tony Moss

Double Trouble - The Realization in Bronze of the Henry Wynne Replica Dial

This article details the intricate process of creating a 30-inch bronze replica of the Henry Wynne dial. It covers pattern making, casting, and challenging precision machining operations, including overcoming issues with a gnomon that was initially too short and perfecting a complex knife-edge. The project required meticulous effort and problem-solving.
Construction Projects, Dials: Double Horizontal, Restoration projects, Sundial Design & Layout

February 2006 page 48

A New ‘Rotary’ Dial For Ipswich

This article announces the installation of a new large stainless steel public sundial on Ipswich marina, sponsored by Rotary clubs to commemorate their centenary. Designed by Tony Moss, the horizontal dial features a massive gnomon, Rotary emblems, a British Summer Time scale, and an informative plaque with a combined longitude/Equation of Time correction graph.
Dials: Horizontal, Construction Projects, Equation of Time

June 2006 page 75
Len Burge

Turnstyle Dial

This article describes the design and construction of a horizontal sundial with a cylindrical gnomon, which the author calls a "Turnstile Dial." It explains how the shadow is cast from a continuum of tangent points on the rounded gnomon, the practical aspects of its construction using copper, and the plotting of hour lines tangential to a central ellipse.
Construction Projects, DIY Sundial Projects, Dials: Horizontal, Sundial Design & Layout

December 2006 page 177
Tony Moss

Making Replacement Springs for a Pilkington & Gibbs Helio-Chronometer

Tony Moss provides instructions for crafting replacement springs for Pilkington & Gibbs Helio-Chronometers. The article outlines using a rolling jig to shape half-hard brass, enhancing its properties through work-hardening and planishing. This ensures the springs function correctly, highlighting traditional metalworking techniques adapted for precise instrument repair.
Construction Projects, DIY Sundial Projects, Dials: Heliochronometer

March 2005 page 13
W. S. May

Equatorial Equinoctial Sundial

Details construction of a combined equatorial and equinoctial sundial using stacked car engine starter rings, cylindrical and brass components. Describes adjustable latitude setting and a novel gearing mechanism employing concentric eccentric spindles to apply the equation of time correction on two knobs, enabling mean time readings without manual calculation.
Dials: Equatorial, Construction Projects, Equation of Time

March 2005 page 34
John Davis

Sir Isaac Newton Sundial Unveiled at Leicester University

Describes unveiling of a bronze casting of Sir Isaac Newton for the new sundial at Leicester University. Covers lost-wax casting, assembly of multiple bronze sections, dimensional realignment, and recalculation of hour and date lines for new geometry. Discusses site installation, setting for local latitude and polar alignment.
Construction Projects, Dials: Equatorial

June 2005 page 60
Shaul Adam
Fred Hibbert

New Sundial at the Scots Hotel in Tiberias, Israel

Accounts the design and installation of twin sundials—horizontal and vertical—on a basalt boulder at the Scots Hotel in Tiberias. Includes design features, analemmas, inscriptions, and collaborative process between designer and hotel staff.
Construction Projects, Dials: Horizontal, Dials: Vertical, Sundial Design & Layout

December 2005 page 134
Peter Scott

A Polyhedral Sun-Dial at Rivington, Lancashire

Describes the design and construction of a modern polyhedral sundial located in the author's garden in Rivington, Lancashire. The six-foot-tall dial is made from reconstituted stone and features a unique icosahedron-shaped head with twenty triangular dial plates, each with a brass gnomon. The design was inspired by dials in Wakefield and Marsden Park.
Construction Projects, DIY Sundial Projects, Dials: Multi Faced, Sundial Design & Layout

December 2005 page 170
Curt Roslund
Marie Rådbo

A Sundial for a School in Southern Sweden

This article details the design and construction of a sundial for the Elias Fries School in Hyltebruk, Sweden. The sundial, made from a large stone cut in half, features a polar-axis aligned shadow pin and a dial plate raised 20 degrees from the ground. It is designed to be an artistic and educational tool demonstrating the sun's daily and seasonal movements without indicating precise clock time.
Construction Projects, Dials: Horizontal, Sundial Design & Layout

March 2004 page 6
Doug Bateman

Sundial with a Cricketing Theme

This article describes a millennium sundial project in Holyport, Berkshire, featuring a unique cricketing theme due to the village's history with the sport. Designed by Edwin Russell with cricketer sculptures by Lorne McKean, the dial includes hand-made 'quint' bricks, a time capsule, and hour lines delineated for summer time.
Construction Projects, Dials: Unusual, Sundial Design & Layout

March 2004 page 14
Frank King

H.M. The Queen, Shakespeare and Waugh: A Conspicuous Analemmatic Dial

This article details the design and construction of an analemmatic sundial for the Queen's Golden Jubilee, located in Old Palace Yard, opposite the House of Lords. It covers the challenges of designing for a cambered surface, the selection of stone from UK countries, the prominent Shakespearean inscription, and the intricate process of determining the scale of dates for the dial.
Construction Projects, Dials: Analemmatic, Sundial Design & Layout

June 2003 page 58
Allan A. Mills
P. Stapleton
J. P. D. Hennessy

Sundials for the Blind

This article explores the concept of creating a sundial for the visually impaired. It reviews historical attempts, such as one by the 17th-century Jesuit priest Francis Hall, and discusses modern approaches that use the heat of the sun rather than visible light.
Construction Projects, DIY Sundial Projects, Dials: Unusual, Sundial Design & Layout

June 2003 page 63
Heiner Thiessen

Celestial Ring Dial

A description of a portable celestial ring dial design. The article discusses the dial's functionality, its use of celestial bodies, and the construction details including the gnomon and other features.
Construction Projects, Sundial Design & Layout

September 2003 page 122
John Moir
John Davis

An Armillary Octahedron

This article details the design and construction of an armillary octahedron, a complex sundial structure. It describes the process of making the intersecting V shapes and the challenges of assembly due to thermal expansion.
Construction Projects, Dials: Unusual

September 2003 page 124
Doug Bateman

A Large Horizontal Dial in Stainless Steel for Melton Mowbray

An article describing a large horizontal sundial made of stainless steel for Melton Mowbray Rotary Club. It highlights the dial's features, including an explanatory plaque with instructions on how to read the dial and correct for 'watch time' using the equation of time.
Construction Projects, Dials: Horizontal

September 2003 page 129
Tony Wood

A Dial with a Royal Cipher

A description of a new vertical dial at St John's Church, Ruardean, Gloucestershire. It is believed to be the only church dial to commemorate the Queen's Golden Jubilee and bear the Royal Cipher 'E II R'. The author also notes the process involved in its design and approval.
Construction Projects, Dials: Vertical

March 2002 page 4
John Davis

An Isaac Newton Sundial

Describes the design and creation of a unique sundial featuring a statue of Newton holding a prism, inspired by his optical work and historic dials at Woolsthorpe.
Construction Projects, Dials: Polar, Dials: Unusual, Sundial Design & Layout

March 2002 page 20
Alan Smith

The Making of the Towneley Hall Sundial

Details the conception, design, carving, and installation of a slate commemorative sundial for Richard Towneley.
Construction Projects, Dials: Vertical

March 2002 page 44

Wheel of Time

Describes a noon mark dial with a lens at the aperture, projecting a bright spot on an analemma inscribed on a semicircular scale.
Sundial Design & Layout, Construction Projects, Equation of Time, Dials: Noon Lines

March 2001 page 9
Ray Ashley
John Moir

The Horniman Museum Reflective Ceiling Dial

This article details the design and delineation of a reflective ceiling dial at the Horniman Museum, inspired by a sundial trail lecture. It sets out the mathematical formulation for determining coordinates on the dial, explaining how it relates to an equivalent declining, reclining dial. The authors emphasize that reflective dials are not inherently more complex to delineate than other planar sundials, providing formulas for angle and length calculations, and tables of coordinates for various times and declinations.
Construction Projects, Dials: Reflected

March 2001 page 16
Frank King

The Pembroke College Wall Dial

The design and installation of the Pembroke College Wall Dial, emphasizing an uncluttered design and prominent nodus for clear time estimation. It highlights a unique coincidence for Cambridge students cycling past, aligning with lecture times. The article details the construction process, including the sealing of the mounting assembly and the replacement of missing stone, ensuring durability. It also mentions AT&T Research Laboratory's digital camera monitoring for shadow detection.
Construction Projects, Dials: Vertical

March 2001 page 38
Simon Fry

A Mosaic Sundial for Ebrington, Gloucestershire

Describes the creation of a mosaic sundial for Ebrington, Gloucestershire, as a Millennium celebration project. Initially planned for the churchyard, it was relocated due to committee concerns. The final design features a mosaic pavement with a parish map, brass lettering, global coordinates, and a sidereal sundial marked in hours and half-hours. The article details the design and construction process, aiming for a permanent and unique village monument.
Construction Projects, Dials: Horizontal

March 2001 page 41
Donald J. Bush

Millennium Sundials for Nottinghamshire Schools

Describes a Nottinghamshire County Council competition for schools to mark the Millennium, with sundials as prizes. The author was consulted on the design, choosing an updated ancient hemicyclium: a hemispherical bowl on a plinth, with a rod gnomon. The ceramic dials, crafted by Danel Sherlock, feature hour, equinox, and solstice lines. A booklet guides setup and reading, hoping the dials will serve as useful learning tools for the winning schools.
Construction Projects, Dials: Hemispherical

June 2001 page 65
Andrew McVean

Uttoxeter Millennium Monument

Describes the Uttoxeter Millennium Monument, a large stone disc featuring a solar system theme and an armillary sundial. Conceived to inspire exploration and celebrate the town, it incorporates local craftsmanship, planetary representations, and embedded plaques documenting its creation and sponsors. A time capsule is also concealed within the monument.
Construction Projects, Dials: Equatorial, Dials: Unusual

September 2001 page 127

Armillary Sphere in Cheadle, Cheshire

An armillary sundial, commemorating the Millennium, was recently unveiled in Cheadle, Cheshire. Designed and made by local blacksmith Jim Plant from iron cart-wheel tires, it also honours astronomer Miss Mary Adela Blagg. The sundial's unveiling was attended by BSS President Sir Francis Graham-Smith.
Construction Projects, Dials: Equatorial, Dials: Unusual

December 2001 page 160
John Davis
Michael Lowne

The 'Bacon' Double Horizontal Sundials

This article investigates the 'Bacon' double horizontal dial, an intriguing 17th or early 18th-century brass instrument of unknown origin. Its unique Equation of Time table and stereographic grid are detailed. Analysis suggests it predates 1752 and aligns with Tompion's calculations. A modern replica, crafted using CAD and photolithography, is also described, featuring updated EoT values and modern heraldry, signed by its maker.
Construction Projects, Dials: Double Horizontal, Equation of Time, Historical Dials

June 2000 page 59
David Brown

The Making of the Christ Church Sundial

Narrates the author's journey through the design, construction, and installation of the Christ Church sundial.
Construction Projects, Dials: Multi Faced

October 2000 page 107
Piers Nicholson

The Genesis of the Tylers' and Bricklayers' Sundial

Detailed account of the design process and construction of the Tylers' and Bricklayers' polar sundial in London, including technical and logistical challenges.
Construction Projects, Dials: Polar, Sundial Design & Layout

February 1999 page 4
Frank Evans

The Gnomon of the North: A New Dial for Whitley Bay

Details the erection of a large horizontal sundial near Whitley Bay, designed by Tony Moss. Named 'The Gnomon of the North', it features a six-metre-high iron gnomon with reliefs created by local schoolchildren, and its hour lines are marked by old railway track on a slightly coned surface.
Dials: Horizontal, Construction Projects

February 1999 page 18
Donald J. Bush
P.H. Rack

The Blazefield Sundial

This article describes a vertical, almost direct south, sundial made in 1997 for a barn wall in Nidderdale. Constructed from plywood with a wrought iron style, it features decorative figures symbolizing agricultural life and an equation-of-time correction system via an adjustable disk.
Dials: Vertical, Sundial Design & Layout, Construction Projects

February 1999 page 48
Allan A. Mills

Hemicyclium: Ratae

This article describes a modern re-creation of a Roman hemicyclium dial, sculpted from Clipsham stone, now located in Leicester's Jewry Wall Museum. Funded by the Royal Society and British Association Awards Scheme, it will be part of the Leicester Time Trial, set to open in 1999.
Construction Projects, Dials: Scaphe

October 1999 page 135
R. A. Nicholls

Millennium Fever

This article discusses millennium projects, highlighting two commissions. One is a 10ft tall horizontal dial sculpture for the Harborough canal basin, costing £15,000 with Lottery Funds. The other is a memorial in Rimpton Parish, Dorset, consisting of two 8ft high standing slabs with a 50mm slot aligned to sunrise on 1st January 2000. Despite likely cloudy weather, the intention is to attend annually for a champagne ritual, establishing a new English tradition.
Construction Projects, Dials: Horizontal, Dials: Unusual

October 1999 page 146
John Ward
Margaret Folkard

Lasercut Sundials for Walls and Windows

This article describes a technique for rapidly producing vertical skeleton sundials from stainless steel using a 3.5-kilowatt laser cutter. Designs are created on a computer with specific location, wall orientation, and date lines. The method allows for intricate details, including owner's names and quotations. The technique can also create silhouette window sundials with sandblasted glass, and accurate analemma plates in stainless steel and brass, suitable for human-involvement analemmatic dials.
Construction Projects, DIY Sundial Projects, Dials: Vertical, Sundial Design & Layout

October 1999 page 148
Mark Lennox-Boyd

La Meridiana: A Millennium Project

This article describes a millennium project involving the construction of a tower, 'La Meridiana', near Rome, to house a series of internal sundials. The author designed 10 dials for the walls and ceiling, read by sunlight projected through openings or reflected by a mirror. An experimental dial at his family house achieved accuracy within 10 seconds. The project aims to demonstrate precise time and date measurement, zodiac, altitude, and azimuth, using novel methods for declination, horizon, and meridian establishment.
Construction Projects, Dials: Reflected, Dials: Unusual, Sundial Design & Layout

February 1998 page 21
Alan Smith

A Golden Wedding Dial

A commemorative dial marking a golden wedding, covering layout, materials and the celebratory inscription, with remarks on siting and legibility.
Construction Projects, Dials: Vertical, Mottoes

June 1998 page 40
Dick Shackleton

The Hemispherium or Dial of Berosus in Anna Liffey Garden, Lucan, Co. Dublin

This article describes a hemispherical sundial, or 'hemispherium,' located in the author's garden, reputedly invented by Berosus around 300 BC. It details the successful process of delineating the solstice and equinox lines using a custom-made template and explains the dial's function in dividing daylight into 'temporary hours'.
Construction Projects, Dials: Hemispherical, Dials: Scaphe, Sundial Design & Layout

October 1998 page 8
Barry Mason

Helios XXII

This article introduces an innovative 'Helios XXII' sundial concept, designed as an architectural shell structure or summerhouse. It features a hemispherical dome with a reflective pool at its centre and a stainless steel rod circulating water creating ripples. Reflections from the water, with shadows from the concentric ripples, are projected onto the dome's underside, marking hours and seasons, aiming for a tranquil contemplative environment.
Construction Projects, Dials: Hemispherical, Dials: Unusual, Sundial Design & Layout

October 1998 page 16
R. P. M. Holliday

Time's Tune on a Liquidambar Leaf

This article describes a unique sundial commission, featuring a gilded metal liquidambar leaf design. It incorporates an innovative equation-of-time correction system called 'Time's Tune,' which uses musical analogy to plot values on a treble clef. The dial provides a direct read-out of clock time with specific adjustments for longitude.
Construction Projects, Dials: Unusual, Equation of Time, Sundial Design & Layout

October 1998 page 27
Allan A. Mills

International Sundial Symposium

This article reports on the International Sundial Symposium in Genk, Belgium, which showcased designs from an international competition. It describes several winning sundials, including polyhedral, polar, catenary, and an innovative digital sundial by Hans Scharstein, highlighting the diversity and ingenuity in contemporary gnomonic design.
Construction Projects, Dials: Unusual

July 1997 page 12
Stuart R. C. Malin

A New Analemmic Sundial in Istanbul

This article details the construction of a pair of analemmic sundials mounted on the south corner of a building in Istanbul, Turkey. It describes the design of the dials, which are made of white marble with bronze gnomons, the shadows of whose points fall on analemmas of hours and half-hours.
Construction Projects, Sundial Design & Layout

July 1997 page 22
David J. Boullin

Telling the Time by Cardboard

A review of a cut-out book titled 'Sundials and Timedials' that allows readers to create their own card sundials. The author recommends it as a simple and unusual introduction to sundial construction.
Book Reviews, Construction Projects

July 1997 page 38
E. Vilaplana
Paul Gagnaire

A Sundial Dedicated to James Taylor

Report on a commemorative sundial project dedicated to James Taylor, a former BSS member, including design and symbolism.
Construction Projects, Sundial Design & Layout, The BSS and Members

July 1997 page 40
Fer J. de Vries

De Boerenring

The article describes the mathematics and construction of an altitude ring dial, including diagrams for delineation and discussion of its limitations.
Construction Projects, Dials: Portable, Mathematics of Dialling

July 1997 page 43
David Le Conte

The Guernsey Liberation Monument

This article details the design and construction of the Guernsey Liberation Monument, which includes a sundial as a central feature. The shadow falls on a curved bench with markers at times of significant events calibrated for the annual Liberation Day, 19 May. It discusses the challenges and the methods used to ensure the dial's accuracy and the shadow's visibility.
Construction Projects, Dials: Unusual, Sundial Design & Layout

February 1996 page 30
Colin J. Thorne

Portable Ring Dial

Description of a compact, transportable ring dial and its operation, with construction details.
Construction Projects, Dials: Portable

June 1996 page 3
Anne Somerville

Dunphail: The Making of a Sundial

Describes the creation of a complex obelisk-style sundial at Dunphail House, including its design, multiple dial faces, symbolic engravings, and historical inspirations from Scottish traditions.
Construction Projects, Dials: Multi Faced

October 1993 page 26
John Ward
Margaret Folkard

Sundials Down Under

This article details an Open Day showcasing a large equatorial bronze sundial for Mount Tomah Botanic Garden in Australia. It describes various sundial types displayed, including analemmatic dials, and techniques for high-quality sundial design and casting using photopolymer. The article covers historical sundials, navigation instruments, and methods for making accurate hour lines and gnomons, celebrating the spread of gnomonic knowledge.
Construction Projects, Sundial Design & Layout

February 1992 page 18
Michael Lowne

Sundial Alignment by the use of the Pole Star

The article proposes an improved method for aligning a sundial gnomon using Polaris, building on previous discussions by Mills and Taylor. It suggests a sighting device made from sheet metal with an eye aperture and a circular target. The method relies on knowing Polaris's angular distance from the true pole and its position relative to the star Beta Ursa Minor (f3 UMi), aiming for an accuracy within 0.25 degrees by aligning Polaris on the target edge opposite f3 UMi.
Construction Projects, Dialling Tools, Mathematics of Dialling

October 1992 page 37
Mark Lennox-Boyd

The Holker Dial

This article describes the Holker Dial, a large shallow bowl sundial made of Burlington slate, sited at Holker Hall. Designed by Mark Lennox-Boyd, it is a projection of Berossos' hemispherium onto a shallow bowl, marked with 15-minute divisions, zodiacal signs, and a combined table for correcting for longitude offset and Equation of Time. The article details the challenging production process by Burlington Slate, involving computer-calculated polar coordinates for engraving and the moving of massive stone objects.
Construction Projects, Dials: Hemispherical, Dials: Scaphe, Mathematics of Dialling, Sundial Design & Layout

July 1991 page 22
Fer J. de Vries

A Glass Dodecahedron

This note introduces F.J. de Vries' new computer program for designing a three-dimensional dodecahedron multi-faced sundial, imagined as made of glass to display various dial lines. The ZONWPLT program interfaces with ACAD to convert dial designs and generate complex geometric models. The article details the computational process, noting the time and files required for the example dodecahedron, and mentions de Vries' subsequent astrolabe program project.
Construction Projects, Dialling Tools, Dials: Multi Faced, Sundial Design & Layout

July 1991 page 25

Linda Lack - A School Girl Diallist

This article celebrates Linda Lack, an 18-year-old schoolgirl who, advised by S.W. Amos, successfully designed and constructed a horizontal sundial and its pedestal. Her impressive enthusiasm and craftsmanship in engraving, turning the pedestal on a lathe, and mounting the assembly are highlighted as an outstanding achievement for a young person, showcasing positive engagement with materials and science.
Construction Projects, DIY Sundial Projects

June 1990 page 29
Alan Smith

A Double Analemmatic Noon Mark

This article describes the empirical method used to construct a double analemmatic noon mark on a south-facing, east-declining wall. Over a year, the author meticulously plotted sunspot positions at noon to permanently engrave the overlapping analemmas, illustrating the dedication required for direct solar observation.
Construction Projects, DIY Sundial Projects, Dials: Analemmatic, Sundial Design & Layout