DIALS
Dials such as these represent the most accurate form of shadow-casting dial.
19th C, French Heliochronometer by Radiguet-Massiot, Paris - previously thought to have been used by the French Railways - but this is in question. Photo from Musée de la Vie Wallonne, Liège
Detail of Radiguet-Massiot analemma
1910 Pilkington Gibbs Heliochronometer, originally given to Robert Peary by the Lord Chief Justice of England in recognition of the first expedition to the North Pole. Now owned by the author and still in mint condition
Pilkington Gibbs Heliochronometer
J.D Gard - Aten Heliochronometer - ca 2006
Silvio Magnani Laser Dial - 2006 : the alidade (a mirror and a laser pointer) is turned until the image of the sun falls on the analemma. The laser indicates mean time. It's magical ! Ref NASS Compendium v16(3) Sept 2009
Prof Martin Jenkins - Cooke Heliochronometer - 2012. Made for his wife's birthday!
Gunning Helichronometer, Belvoir Castle, Leicestershire UK. photo © J Hannan-Briggs
Tempus Mundi, concept by Christian Wernli. Available from www.helios-sonnenuhren.de/de/tempus-mundi-0
Click on images to enlarge & view captions

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