Sundial ring how does it work

Here is how it works: Hold the ring toward the sun and through a tiny aperture, a bright bead of sun-light shines on the inner surface of the ring Sol lucet omnibus - The sun shines upon us all Petronius A brilliant sterling silver ring that represents eternal optimism!

Here is how it Stunning sterling silver Promise Ring engraved with the latin inscription "Carpe Diem". Usually translated from the Latin as 'seize the day'. Skip to main content Please enable JavaScript in your web browser to get the best experience.

Read more about our cookie policy Accept and close the cookie policy. Museum number AF. Description The ring is engraved on the outside with the initials of the names of the months, and has a small applied shield with a stag rampant. The shield is surrounded by the initials 'H G' and 'V B'. The sliding central band of the ring has the sighting hole. A hand and a star are engraved next to the sighting hole.

On the inside of the ring the hour marks are inscribed as individual dots, numbered with pairs of hours and the hour numerals from 4 to 12 to 8. Is your calculation for the wrong side of GMT - might account for the error. Also don't forget 'the equation of time' - in my part of the wolrd Longitude this can be up to 30 minutes correction but closer to zero if in UK.

Reply 4 years ago. Can you give me the dimensions of the plywood circle please? Presumably you could calibrate your clock by marking it after you check where the sun shines, yes? Thanks for this--I love clocks and can't wait to make this.

The dial is mm across, but the size isn't that important, especially if you're going to add your own marks which, yes, would work. This might make a nice science project. The kids could mark the time once an hour during the day time. It would take a while to get the markings for other seasons of the year but I think it would help them understand the relative positions of the earth and the sun. I think I will try to find materials to make one. You could make it from any think material - maybe corrugated card, with a strip of white paper glued around the inside?

That may work. We are starting a S. This might be a good long term project. Introduction: Hanging Sundial. By Kiteman Like my work? Buy me a coffee!

More by the author:. More About Kiteman ». Every sundial works the same way - a fixed point the gnomon casts a shadow onto a marked dial. Fortunately, there are any number of sundial calculators on the interwebs. To finish making the sundial, you'll need Attachments Hanging Sundial.

When you have cut out the pieces of your sundial, they need to be aligned as you glue them. Clamp it and let the glue dry. Add a length of thread or string to hang it, and you're done. My sundial didn't work. Well, it worked, but it was wrong, out by a couple of hours. So, if you make one of these, check your maths! Did you make this project? Share it with us!

I Made It! Reply Upvote. Kiteman timearl Reply 2 years ago.