Sundials - World's Oldest Clocks

North American Sundial Society

2005

Volume 12 Number 4, December 2005

  • The Meridian Line In The Basilica Of San Petronio - Giovanni Paltrinieri
  • Laying Out A Sundial Using Ancient Rope Geometry - Stephen Luecking
  • Changing Places - Reinhold Kriegler
  • A Brief Note On The Columbia University Sundial - Fred Sawyer
  • A Sphere As A Gnomon - Alessandro Gunella
  • Sightings - In Peoria - James Ludwig
  • An Encounter With Numb3rs - Fred Sawyer
  • Quiz: Ozanam's Construction - Rolf Wieland
  • An Ecliptic Calendar Dial - John Foad
  • The Patent Corner: Gardner's Hemispherical - Fred Sawyer
  • Letters, Notes, Email, Internet ....
  • Digital Bonus:
    The Sundial And Geometry - Lawrence Jones.
    Gnomonics and Solar Radiation - Renis Ridolfo.
    Sundial Design with a Programmable Scientific Calculator - Roger Bailey.
    Double Horizontal Sundial: Design, Construction and Use - John Hayes.
  • Cartoon - David Flick
  • Addendum: A Retrospective of the Chicago Conference - John Schilke

Volume 12 Number 3, September 2005

  • Combinations Of Sundials With Mechanical Clocks - Heinz Sigmund
  • Sightings - On Retreat - Steven R. Woodbury
  • The Prime Vertical - John F. Schilke
  • The Sundial (A Poem) - Samuel F.B. Morse
  • The Sundial Of Emperor Augustus: Rise And Decline - Frans W. Maes
  • Quiz Answer: Eratosthenes' Well - Rolf Wieland
  • The Bury St. Edmunds Curve - Fred Sawyer
  • Ring Dials (Farmers' Rings) - Helmut Sonderegger
  • Digital Bonus: Sonne & Ring Sundials - Helmut Sonderegger
  • Letters, Notes, Email, Internet ....
  • Addendum: Essential Science For New World Diallists - Martin Jenkins

Volume 12 Number 2, June 2005

  • Light Work: Contemporary Artists Consider The Sun - Rebecca Cummins
  • Digital Bonus: A Reference Spreadsheet, etc. - Simon Wheaton-Smith
  • Sightings - A Mystery Solved - Steven R. Woodbury
  • A Bipolar Azimuthal Equant Sundial - Fred Sawyer
  • Virtual Gnomonics: Designing Sundials With 3D Modeling - Stephen Luecking
  • Patent Corner: Four Sundial Patents Of Recent Vintage - Fred Sawyer
  • Quiz Answer: Bedos de Celle's Figure - Yvon Massé
  • Quiz: Eratosthenes' Well - Rolf Wieland
  • Longyearbyen - Louise Rigozzi
  • Letters, Notes, Email, Internet ....

Volume 12 Number 1, March 2005

  • Compressed Gnomonic Sundials - Fred Sawyer
  • Frosty The Gnomon - Paul Kinion
  • Sundials – How Accurate Are They? Part 2 of 2 - Herbert O. Ramp
  • Sightings - In Korea - Steven R. Woodbury
  • Equatorial Projection Sundial Projection Vectors - Harold E. Brandmaier
  • Digital Bonus: Oglesby's Manuals - Mac Oglesby
  • Patent Corner: McAuliffe's Capuchin - Fred Sawyer
  • A Horizontal Dial For Montana - John Davis
  • Quiz Answer: A New Inclining Declining Dial In Florence - Yvon Massé
  • Quiz: Bedos de Celles' Figure - Yvon Massé
  • Letters, Notes, Email, Internet ....

2004

Volume 11 Number 4, December 2004

  • Dürer Designs A Dial - Stephen Luecking
  • Quiz: A New Inclining Declining Dial In Florence - Yvon Massé
  • Quiz Answer: Rolf's Roof - Wieland, Ferrari, Sawyer
  • Bonus: Introduction To Sundials - McDavid & Kellogg
  • Sightings - On A Business Trip - Steven R. Woodbury
  • Patent Corner: Chamberland's 1893 Dial - Fred Sawyer
  • Parameters Of A Dial From 3 Shadow Points - Alessandro Gunella
  • Sundials - How Accurate Are They? (Part 1 of 2) - Herbert O. Ramp
  • The Oldest Analemmatic Sundial? - Fred Sawyer
  • Letters, Notes, Email, Internet ....
  • A Tenafly Conference Retrospective – John Schilke

Volume 11 Number 3, September 2004

  • Digital Sundials In Review (Part 2 of 2) - Robert L. Kellogg
  • Patent Corner: McClure's Cast Iron Sun Dial - Fred Sawyer
  • Sundials With Punctiform Hour Lines - Gianni Ferrari
  • The DuPage County War Memorial Sundial - Claude Hartman
  • Quiz: Rolf's Roof - Rolf Wieland
  • Quiz Answer: Le Gnomon Du Notaire - Wieland/Sawyer
  • A Sundial In The (Other) Sistine Chapel - Fred Sawyer
  • Right Sines And Versed Sines - René J. Vinck
  • In Liberia, Time Is Money - Fred Sawyer
  • Sightings - In Northern Ireland - Steve Woodbury
  • Dialing Scales : Reviewing The General Theory - Fred Sawyer
  • Letters, Notes, Email, Internet ....
  • Digital Bonus - Robert L. Kellogg

Volume 11 Number 2, June 2004

  • Digital Sundials In Review (Part 1 of 2) - Robert L. Kellogg
  • Digital Bonus: The E.B. Meyrowitz Sundial Catalog, et al. - Hal Brandmaier
  • Selenharia & Sir Grigory Cow T - Fred Sawyer
  • Graphical Sundial Design With The Weir Diagram - Rene J. Vinck
  • Patent Corner: Fléchet's Focused Analemma - Fred Sawyer
  • An Analemma - S. Dunn (1774)
  • Back to Basics: Design By Drawing - Claude Hartman
  • Quiz: Le Gnomon Du Notaire - Fred Sawyer
  • Copernicus And The First Reflection Sundial - Gianni Ferrari
  • Sightings - In Park And Ballpark - Fred Sawyer
  • Letters, Notes, Email, Internet ....
  • Dunn's Analemma

Volume 11 Number 1, March 2004

  • Analemmatic Sundials : A Generalization - Bernard Rouxel
  • Analemmatic Dialing Scales - Fred Sawyer
  • Digital Bonus: ReflSun et al. - Gianni Ferrari
  • A Note On Lambert Circles - Bernard Rouxel
  • Desperately Seeking Vaulezard - Fred Sawyer
  • Quiz Answer: Obeliscus Augusti - René J. Vinck
  • Back To Basics: Comparing Vertical Sundials - Claude Hartman
  • Reflection Sundials : A New Program - Gianni Ferrari
  • Patent Corner: Reflection Dials - Fred Sawyer
  • Fort Prince Of Wales, Canada & The Transit Of Venus 1769 - Steven R. Woodbury
  • Sightings - In Estes Park - Steven R. Woodbury
  • Letters, Notes, Email, Internet ....
  • Tenafly Conference Registration

2003

Volume 10 Number 4, December 2003

  • Why Is The Analemmatic Dial Called ‘Analemmatic'? - Alessandro Gunella
  • A Self-Orienting Latitude-Independent Analemmatic Equant Dial Design - Fred Sawyer
  • Quiz Answer: Serving A Useful Function - Fred Sawyer
  • Quiz: Obeliscus Augusti - René J. Vinck
  • A Foster-Lambert Vertical Decliner - Mac Oglesby
  • Sightings - At Colgate - Fred Sawyer
  • A Sidereal Sundial - Thomas R. Hughes, Jr.
  • Back To Basics - Claude Hartman
  • Digital Bonus - Fred Sawyer
  • Substyle And Equinox Lines - Herbert O. Ramp
  • The Analog Watch Compass - Herbert O. Ramp
  • Superstitions (A Guest Editorial) - Margaret Stanier
  • Fatamorgana - Reinhold Kriegler
  • Double Use Of A Sundial's Pattern - Fer J. de Vries, et al.
  • Letters, Notes, Email, Internet ....
  • Also including - A Banff Conference Retrospective

Volume 10 Number 3, September 2003

  • Seasonal Markers For Analemmatic Sundials - Roger Bailey
  • Analemmatic Sundials And Mean Time - Helmut Sonderegger
  • Sightings - The American Meridian – Then - Alice Morse Earle (1902)
  • Sightings - The American Meridian – Now - Steven R. Woodbury
  • From Universal Analemmatic To Sun Compass - Fred Sawyer
  • Quiz Answer: Hooke's Device - Fred Sawyer
  • A Vinyl Sundial Face - Mac Oglesby
  • Digital Bonus: Alemma.exe & PowerPoint Presentations
  • The Astro Compass - René Vinck
  • Fugios To Mark NASS' 10th Anniversary
  • Constructing Day Lines - Stephen Luecking
  • Quiz: Serving A Useful Function? - Fred Sawyer
  • Back To Basics: Human Sundials - Claude Hartman
  • A Sundial With Analemmic Gnomon - Brian Albinson
  • Letters, Notes, Email, Internet ....

Volume 10 Number 2, June 2003

  • We Have A Sundial! - Helmut Sonderegger
  • One Of The Most Ancient Representations Of A Sundial - Gianni Ferrari
  • Sightings...At The Solar Decathlon - Steven R. Woodbury
  • Continued Fractions And The Sundial - John F. Schilke
  • Digital Bonus: Sun's Ephemeris - Gianni Ferrari
  • The "Pons Asinorum" Of Clavius (1586) - Alessandro Gunella
  • The Mystery Of The Snellegem Sundial Solved - de Vries, Oglesby & Maddux
  • Back To Basics - Claude Hartman
  • Diocles And The Earliest Extant Discussion Of Gnomonics - J. Len Berggren
  • Quiz Answer: Illumination By Scales - Fred Sawyer
  • The Universal Sun Compass & The Complex Variable - René J. Vinck
  • Quiz: Hooke's Device - Fred Sawyer
  • On Generalized Hour-Plane Sundials - Anselmo Pérez Serrada
  • Letters, Notes, Email, Internet ....
  • Plus: Registration info for the NASS Conference in BANFF, Alberta Canada

Volume 10 Number 1, March 2003

  • Sightings...In Sun, Sand and Solitude - Jim Bishop
  • Sightings...In A Geocache - Fred Sawyer
  • The Shadow & Penumbra Of A Rectilinear Element - Gianni Ferrari
  • Digital Bonus
  • The Dialing Scales of Clavius - Alessandro Gunella
  • Quiz: Illumination By Scales - Fred Sawyer
  • Vertical Declining Sundials By Dialing Scales - René J. Vinck
  • Vertical Decliners By A New Easie & Most Speedy Way - Fred Sawyer
  • Quiz Answer: Winston's Window - Rolf Wieland
  • A Note On The Origins Of Dialing Scales - Fred Sawyer
  • A Standard Time Polar Sundial - Mac Oglesby
  • The Basic Mechanics Of The Equation Of Time - Don Petrie
  • Elliston Park Analemmatic Sundial - Roger Bailey/Ken Miklos
  • Letters, Notes, Email, Internet ....
  • Plus: Registration info for the NASS Conference in BANFF, Alberta Canada

2002

Volume 9 Number 4, December 2002

  • Pin Holes And Shadow Sharpeners - William Walton
  • The Shadow Sharpener - Gianni Ferrari
  • Sundial Face Marking Technique - John Carmichael
  • Gnomons With Multiple Styles - John Carmichael
  • Back To Basics: The Celestial Sphere - Claude Hartman
  • Digital Bonus: Analemma.exe
  • The First Analemmatic Sundial In Iran - Mohammad Bagheri
  • Quiz Answer: Finding Longitude - Wieland / Ferrari
  • Sightings: Old And New In Augusta Georgia - Steven Woodbury
  • Eble's Horoscope - Fred Sawyer
  • The Rojas Astrolabe And Four Universal Altitude Dials - Yvon Massé
  • Quiz: Winston's Window - Rolf Wieland
  • Letters, Notes, Email, Internet .... And Conference Retrospective

Volume 9 Number 3, September 2002

  • In The Beginning : A Gnomonic Preface - Thomas Strode (1688)
  • Quiz: Finding Longitude - Rolf Wieland
  • Sightings...Old & New In South Carolina - Steven Woodbury
  • Ridge Sundials - Edley McKnight
  • Canonical Hours According To St. Benedict's Rule - Josep Maria Vallhonrat
  • Digital Bonus: PieDial Spreadsheet - Steve Lelievre
  • Physics Experiment Involving Two Water-Filled Bowls - Art Kaufman
  • Back To Basics: Correcting Wedges Revisited - Claude Hartman
  • Quiz Answer: Construct The Dial - Fer J. deVries et al.
  • Recent Selections From A Dialist's Library - Fred Sawyer
  • Letters, Notes, Email, Internet ....
  • A Reprint of Henry Spencer Spackman's 1895 book "The Timepiece of Shadows"

Volume 9 Number 2, June 2002

  • In The Beginning - A Gnomonic Preface - Thomas Fale (1593)
  • Gray Dial Stone - A Poem - Hugh Miller (1802-1856)
  • The Time Is Now... In Juneau Alaska - Michael Orelove
  • Quiz Answer: Michnik's Street - Rolf Wieland
  • An Easy Method To Find Proper Alignment - Bill Gottesman
  • Digital Bonus: Sundial Align - Bill Gottesman
  • Sightings...By And For The Employees - Fred Sawyer
  • Subtleties Of Shadows: The Penumbra At Noon - Virendra Nath Sharma
  • A Side Note - Fred Sawyer
  • Quiz: Construct The Dial - Fer J. deVries
  • Recreation Of Jefferson's Spherical Sundial - Monticello/Tho.Jefferson Found.
  • Back To Basics: Understanding The Trig - Claude Hartman
  • How To Cheat At Gnomonics - Paul W. Lapp
  • Competition: Laying Out A Sundial With Laser-Theodolite - Rolf Wieland
  • A Sundial By Rule Of Thumb - Larry Jones / Fred Sawyer
  • Letters, Notes, Email, Internet ....

Volume 9 Number 1, March 2002

  • In The Beginning - Gnomonic Prefaces - Fred Sawyer
  • The New Millennium Sundial At The Ethel Walker School - Albert J. Brenner
  • Gnomonic Modes For The Classification Of Sundials And As A Tool For Finding New Types - J.A.F. deRijk
  • Gnomonic Modes And Ptolemaic Coordinate Dials - Fred Sawyer
  • Cord & Spar Sundials - William S. Maddux
  • Sightings...At The Naval Hospital - Steven R. Woodbury
  • Back To Basics: Looking At Sundials - Claude Hartman
  • A "Digital" Universal Ring Dial - Karen Deal Robinson
  • Quiz Answer: Gianni's Pole - Gianni Ferrari
  • Quiz: Michnik's Street - Rolf Wieland
  • Digital Bonus: Sphere - Gianni Ferrari

2001

Volume 8 Number 4, December 2001

  • A Polar Bifilar Sundial With Parallel Date Lines - Fer deVries
  • Bifilar Sundials of Rafael Soler Gayá - Claude Hartman
  • Regulating The Foster Point - Fred Sawyer
  • Dialing Scales By Parallel Projection - René J. Vinck
  • Back To Basics: Sundial Location - Claude Hartman
  • Digital Bonus : Shadows, EarthWatch et al.
  • Student Dials - Mac Oglesby
  • Sightings : In The Yard - Steven Woodbury
  • Sightings : In Suffern - Robert Adzema
  • The Anti-Cone Model For Sundial Projection - Stephen Luecking
  • Quiz Answer: al-Kashi's Wall - Fred Sawyer
  • Quiz : Gianni's Pole - Gianni Ferrari
  • The Wide Gnomon - Fer deVries
  • A Horizontal Sundial By Julien LeRoy - Fred Sawyer
  • Letters, Notes, Email, Internet .... And Conference Retrospective

Volume 8 Number 3, September 2001

  • Back To Basics: Sundial Location - Claude Hartman
  • Horologium Solarium Augusti : A Visit - Bethanie Sawyer
  • Samuell Foster's Circle - René Vinck
  • The Further Evolution Of Samuel Foster's Dialing Scales - Fred Sawyer
  • The Foster-Point Sundial : Time In A Perfect Round - Fred Sawyer
  • Sightings : The Sundial Of Cuencamé, México - J. Montes & M. Villegas
  • Quiz : al-Kashi's Wall - Fred Sawyer
  • Quiz Answer : A Fillip For Leybourn - Fred Sawyer
  • Determining The Declination Of A Vertical Wall - Gianni Ferrari
  • Digital Bonus : Gianni Ferrari's Wall_Dec
  • Corn Henge - Bob Kellogg
  • Letters, Notes, Email, Internet ....
  • For The Mathematicians - Fred Sawyer

Volume 8 Number 2, June 2001

  • Wheatstone's Polarizing Sundial - Jim Mahaffey
  • Quiz Answer : Rolf's Nail - Rolf Wieland
  • Letters, Notes, Email, Internet ....
  • Sundials in Medieval Islamic Science & Civilization - J. Len Berggren
  • Digital Bonus: GPDXF & MARABE - Gianni Ferrari
  • The Universal Sundials Of Ancient Islam - Gianni Ferrari
  • Shadows - Carlos Castaneda
  • Another Latitude Independent Sundial - Rene J. Vinck
  • Back to Basics - A New Column - Claude Hartman
  • Sundial Construction With Little Math ! - Claude Hartman
  • Foster's Proof For Dialing Scales - Fred Sawyer
  • Quiz: A Fillip For Leybourn - Fred Sawyer
  • Samuel Foster: A 350th Anniversary Commemoration - Fred Sawyer
  • Sightings... In Saint Augustine, Florida - Donald L. Snyder

Volume 8 Number 1, March 2001

  • Sundials And Mathematical Surfaces - Keijo Ruohonen
  • Quiz Answer : Nicole's Dollar - Fred Sawyer
  • Quiz : Rolf's Nail - Rolf Wieland
  • The Rainbow Sundial : Nature's Own Water Clock - John Moir
  • The Pastor's Watch : A Collimating Altitude Dial - Rev. Thomas Scarborough
  • Sightings... A Gift To Vermonters - Nancy J. Lang
  • Oudemans' Curve - Fred Sawyer
  • Lecture Upon The Shadow - John Donne
  • Digital Bonus : Oudemans.exe and eBook Reader - Fred Sawyer
  • Letters, Notes, Email, Internet ....
  • An 1849 Sundial Advertisement