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Pencil Sundial Card
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Pocket-sized working sundial tuned for Boston, pencils and tiny turtles!
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Model information
- Source
- Printables
- Category
- Physics & Astronomy
- License
- Creative Commons — Attribution — Noncommercial — Share Alike
It's a card, but it's also a functional sundial with a compass! Point the turtle North and put a pencil in the center. If you are in Boston, then the Sun's shadow will tell you the exact time. Tuned using a real website: https://sundialsoc.org.uk/making-sundials/. All credit for the science goes to the British Royals. The turtle was my original idea.
The compass hole is 25mm in diameter.