Uploaded February 2025 | Updated September 2026, 1 week ago
In this video, we look at a trio of portable timepieces designed to tell the time only by the movement of the sun and stars: two sundials and a stardial/nocturnal.
Pelorus/Course Corrector/Marine Computer Video: youtu.be/Lsa_UrnO-e4
0:00 Introduction
0:44 History of the Ansonia Clock Company
1:47 Sunwatch: Markings and Patents
2:56 Sunwatch: External Features
4:38 Sunwatch: Setup Procedure
7:24 Aquitaine Sundial Ring
8:57 Nocturnal / Nocturlabe
10:27 Outro
SOURCES
gilai.com/product_852/Sunwatch-Combination-Sundial-and-Compass-by-Ansonia
honorableoutfitters.com/artifacts/ansonia-clock-company-sun-watch
museumoftechnology.substack.com/p/sunwatch?utm_campaign=post&utm_medium=web
vintagerecipeblog.com/2016/03/the-ansonia-sunwatch-instructions.html
vavasseur-antiques.com/portfolio/british-ansonia-sunwatch
patents.google.com/patent/US1418926A/en?q=(hollinwood)&oq=hollinwood
mountaintoptradingco.com/product-category/sundials-compasses/aquitanes
mysundial.ca/tsp/horizontal_sundial.html
dev.to/pauljlucas/everything-you-ever-wanted-to-know-about-sundials-5h2l#:~:text=Noon is, of course, 0,lines become more evenly spaced.
nawcc.pastperfectonline.com/webobject/9760242E-F23A-45B3-9C94-042532962628
mysundial.ca/tsp/nocturnal.html
rmg.co.uk/stories/blog/astronomy/what-nocturnal
sites.rootsweb.com/~mosmd/noctrnl.htm
patents.google.com/patent/US463040A/en?oq=463040
In this video, we look at a trio of portable timepieces designed to tell the time only by the movement of the sun and stars: two sundials and a stardial/nocturnal.
Pelorus/Course Corrector/Marine Computer Video: youtu.be/Lsa_UrnO-e4
0:00 Introduction
0:44 History of the Ansonia Clock Company
1:47 Sunwatch: Markings and Patents
2:56 Sunwatch: External Features
4:38 Sunwatch: Setup Procedure
7:24 Aquitaine Sundial Ring
8:57 Nocturnal / Nocturlabe
10:27 Outro
SOURCES
gilai.com/product_852/Sunwatch-Combination-Sundial-and-Compass-by-Ansonia
honorableoutfitters.com/artifacts/ansonia-clock-company-sun-watch
museumoftechnology.substack.com/p/sunwatch?utm_campaign=post&utm_medium=web
vintagerecipeblog.com/2016/03/the-ansonia-sunwatch-instructions.html
vavasseur-antiques.com/portfolio/british-ansonia-sunwatch
patents.google.com/patent/US1418926A/en?q=(hollinwood)&oq=hollinwood
mountaintoptradingco.com/product-category/sundials-compasses/aquitanes
mysundial.ca/tsp/horizontal_sundial.html
dev.to/pauljlucas/everything-you-ever-wanted-to-know-about-sundials-5h2l#:~:text=Noon is, of course, 0,lines become more evenly spaced.
nawcc.pastperfectonline.com/webobject/9760242E-F23A-45B3-9C94-042532962628
mysundial.ca/tsp/nocturnal.html
rmg.co.uk/stories/blog/astronomy/what-nocturnal
sites.rootsweb.com/~mosmd/noctrnl.htm
patents.google.com/patent/US463040A/en?oq=463040
